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|07-05-2008, 11:23 PM||#1|
<-- My Art -->
Overclocking Phenom and Phenom II
AMD FX Processors Unleashed | a Guide to
Performance Tuning with AMD OverDrive
and the new AMD FX Processors
Trinity/PileDriver Tech doc and Info PDF
A read - Extending HT to 8Gb/s
Forwarded Clock Jitter Filtering
Resonant Clock Design for a Power-efficient, High-volume
Revision Guide for
AMD Family 15h
THE SURROUND COMPUTING ERA
Senior Vice President and CTO, AMD
Hot Chips Symposium
August 28, 2012
Family 15h Models 10h - 1Fh AMD A-Series
Accelerated Processor Product Data Sheet
Family 15h Models 10h-1Fh AMD Sempron™
Processor Product Data Sheet
BULLDOZER PDF INFO
FX Scheduler patch DL
Note: Install the first one and then the second one.
_________READ & TWEAK!!__________
Dual Core to Quad. How to Do it!!?? _____> http://forums.extremeoverclocking.co...d.php?t=323897
PSU's for today's computers ___________> http://forums.extremeoverclocking.co...d.php?t=136602
De-lidding of Phenoms (Advanced Users)_> http://forums.extremeoverclocking.co...d.php?t=332705
For Athlon and Non BE overclocking___________> http://forums.extremeoverclocking.co...d.php?t=151373
Memory Guide_____________________________> http://forums.extremeoverclocking.co...d.php?t=286070
Memory Guide II___________________________> http://forums.extremeoverclocking.co...d.php?t=170999
Cecil's Video Card Database::____(In Progress)____> http://forums.extremeoverclocking.co...d.php?t=332613
901_Memphis ALL s939 OPTERON Steppings and Average Overclocks http://forums.extremeoverclocking.co...d.php?t=246130
AMD Product list with specs_________> http://products.amd.com/en-us/DesktopCPUResult.aspx
Other AMD DL's
AMD Power Monitor http://majorgeeks.com/AMD_Power_Monitor_d4939.html
AMD Dual Core Optimizer http://support.amd.com/us/Pages/dyna...42f&ItemID=153
AMD Cpu Info http://support.amd.com/us/Pages/dyna...42f&ItemID=176
AMD Power Monitor Linux Version - SLES 9 64 bits http://support.amd.com/us/Pages/dyna...42f&ItemID=100
The Above links can be found here. http://support.amd.com/us/psearch/Pa...ords=&items=25
Looking for Intel Specific?_________________>http://forums.extremeoverclocking.co...play.php?f=225
Video Cards, TV Tuners, Monitors Section____>http://forums.extremeoverclocking.co...splay.php?f=35
General CPU Cooling______________________>http://forums.extremeoverclocking.co...splay.php?f=46
New Member? Introduce your self. _________>http://forums.extremeoverclocking.co...play.php?f=169
Thermal Pastes and application.
If you purchase one of the top 5 brands of thermal paste, be sure to read their web site carefully. Artic Silver for example has instructions for applying the thermal compound and burn in time.
The most practical way of applying thermal paste, is to use a small ball no bigger than a pee in size. Using a credit card, spread the paste across the entire IHS (Integrated Heat Spreader) plate, making a thin (as possible) even film. Be sure there are no air bubbles in the paste you've spread before mounting the HSF. If there are bubbles continue the spreading process until they are all gone. It is not recommended to use additional thermal paste on the HSF (Heat Sink Fan). For lower end cpus 89w or less, you may be able to use a pea sized drop in the center and let the paste naturally spread.
CPU Burn in.
A burn in on a cpu is done with a load to create heat. Some thermal pastes require this in order to work properly. The more heat you create the better the burn in. So while your overclocking and then load testing your results, You are already on your way to a better HSF seating. The best way to tell if you've done a good seating job is that in time, your overall temps should drop a tad. My burn in consists of at least 24-48 hours on full load. Stock speeds are usually good enough for cpu burn in's.
For a general stability run, I would require to see at least 8hrs of load. This kind of use helps burn in's on certain thermal pastes as well as stability of Cpu, Ram and Mother board. Using Prime95, for example, run blend for a solid Minimum of 8hrs. The more hours the better the bragging rights. Ultimately TRUE STABILITY resides in everyday use and a PC running without restarts for Long periods of time. In the mean time benchmarking and gaming while running virtual servers video editing or w/e it is you do will decide if you have stability. For example, The mother board in my sig (M3A32-MVP Deluxe wifi) was purchased in November 2007 along with a 9850BE. The Cpu is gone, But the board still brings 4ghz daily clocks. Now that is stability and Bang for the money.
This is one of THE most important parts to over clocking. If you can not afford proper cooling, I do not advise people to overclock their cpu, Ram, North Bridge, and or Hyper Transport. Over Clocking requires voltage increases that stock Cpu Fan and heat sinks can not handle. If you have bought an after market cooler, I suggest making a thread in the cooling section to find out how to get the most from your particular cooler. Chances are that many people here may have the same cooler and can give suggestions for mods, case flows and other things like lapping or de-lidding.
Depending on the cooler, ambient temps, case flow and mounting will determine how well your cooler will do. The cooler the ambient temps are (room temps) the cooler the entire system will run. Case flow is important. You need to direct the heat as quickly as possible to an exit on the case. Positive pressure will usually help in case flow directions for exiting. In order to create a positive pressure, you would have more CFM going into the case then exiting. Negative pressures are created in the opposite fashion. More CFM exiting than entering. Please feel free to try different configurations. Allow a few days for you to get accustomed to the set up and case fan configuration. Be sure to keep track of temps and write down which fan you had where on what ever days you ran that particular fan configuration. Also keep the cpu clock speeds the same for each Case fan adjustment. Also keeping the ambient room temps about the same (close as possible). This will help you determine which set up works best.
If you have liquid cooling, the case fan config still applies. There are still other parts to the system that need proper cooling. Since the Cpu is liquid cooled for example, you would want to concentrate on the next hottest running hardware. Usually it's the video card if your a hard core gamer such as myself. At this point, the side panel fan is crucial. I recommend people to Mod their side panel to fit a larger fan or multiple fans if need be. New modder's can always open a thread for suggestions and how to's.
Extreme Users Only!
A brief touch in what we at EOCF are all about. To get the best over clock, you need the best cooling. Dry Ice is the cheapest. It can be applied much like LN or Liquid Nitrogen in a LN Pot. Insulation of the motherboard and Cpu socket is a must. Phase Cooling. A pretty complicated method, and may require some knowledge in Heating and Air conditioning. Peltiers can be fun but also require some mathematics and they need to be powered properly. Liquid cooling with Dry Ice. Says it all. But you need a liquid that won't freeze. Out side in the snow. Custom refrigerator mods. Always interesting to see some one do. Anything that is out of the ordinary is our extreme. Browse the cooling section of the forums to learn more and ask questions. http://forums.extremeoverclocking.co...splay.php?f=46
Bios Set up and procedures for over clocking.
Assuming we have an Operation System installed, for example Windows Vista or 7, and all is stable and bios is at default, Restart the PC and enter your bios. For Asus boards it's the Delete Button. If you have a new board, I suggest to read the mother boards manual. It'll give a brief description how to enter the bios and use bios flash utilities ect.
When In bios, most parameters will be listed in AUTO mode. Find the Cpu over clocking section that has the multiplier, FSB = 200mhz, Ram config, Chipset and HT as well. Set all of these to Manual in order to change the settings. Also, please turn off Cool and Quiet. This is not needed for over clocking when you will be consuming more power to overclock. Suddenly changing Clock speeds and voltage at large amounts can cause system instability. You can disable auto express And spread spectrum well.
For Cpu's without multipliers, you should have the choice to lower only. An example would be an Athlon II 630 Propus Core. The multiplier is x14 at stock and can only be lowered. I make it a rule of thumb to set this on manual and be sure the multiplier is set at x14 when I boot. Don't leave it on auto.
The Over Clocking.
FSB = 200mhz _______ Increasing this will over clock the entire system. This will increase performance throughout the whole system IF you can keep the speeds up higher than they where stock. The higher the better In most peoples opinions.
So our Athlon II @ 220 x 14 wll be running at 3080mhz. The North Bridge (NB) and Hyper Transport Link HT will also be over clocked. Both the NB and HT can do any where between 200-400 mhz over clocked without needing voltage increased or NB/HT speeds decreased. At a 220 FSB the Ram will need to be stress tested. If it fails, you have 2 choices.
Choice 1. Lower the Ram speed and divider. (Some boards will adjust the divider automatically.) For example DDR2 @ 200mhz would be 1:1 divider and running 1T. Common DDR2 timings are 5-5-5-15, and latencies for DDR3 Ram 7-7-7-20 for DDR3-1066 and 7-7-7-24 for DDR3-1333. These are common to most Ram. Some Rams will vary. So you can drop from 1333 to 1066 for CPU over head. Please be sure to use the correct timings and voltage suggested by the RAM's manufacturers Web site. This also includes Voltage as well. Very important to keep the Ram as happy as can be. To learn more about Ram over clocking and timings ect., please view the links at the top for the Ram guides. They are Very helpful.
Choice 2. Over Volt and loosen Ram timings. I advise this for Advanced users only. Cooling and being Very familiar with the Ram and changing timings is very crucial for a successful over clock. I can't say more because every Ram is different and require different timings and voltages. For example, Mushkin DDR2 1067 can run up 2.25v recommended. I Had mine at nearly 2.4v when it died.....
Further increasing the FSB, past 220 to 221, 222,223.... We should be stress testing along the way. For most 45nm cpu's, If it fails under 3600mhz the NB, HT or Ram may need some attention. So let's say we made it to 240 fsb. Ram is lowered for the extra headroom so we know there's no problem. At 240 x 14 the Athlon II is now running an HT/NB speed (If they are linked @ x10 or 2000mhz at stock) of 2400mhz. You may encounter a no post at this point.You again have 2 choices.
One is over volt. How much depends on the over clock. Most Phenom's set a rather low voltage to the NB/HT for power savings and keeping heat down as well. 1.1750v NB is stock for my 940BE and 790FX xhipset. The Cpu HT voltage is 1.2v stock. These 2 voltages can be increased by .10v increments in my current bios. If I pass 400mhz The HT voltage can be generously handed 1.3-1.4v. Same goes true for the NB as well. The NB on most of the more expensive mother boards can reach speeds of up to 3ghz or more. All of them OC differently. If Over volting doesn't work see option 2.
Second option, Lower NB/HT speeds. x10 or 2000mhz to x8 or 1600. The FSB at 240 will bring NB/HT speeds back to stock (2000mhz). That gives you a 200-400mhz headroom again. Simple enough right? I will add that some Cpu's prefer different speeds with the NB and HT. You'll have to play around to find how to get your maximum processor over clock.
The North Bridge and Hyper Transport can be over clocked separately as well The HT speed is not to exceed the NB speed. You will get a no post and possibly have to reset the Cmos. To prevent that from happening, I suggest to beginners to leave the NB/HT linked. Running the same speed is optimal to overclocking. Cpu speed matters most.
Now Our Athlon II is running 3360mhz. The Hyper Transport and North Bridge are both running 2000mhz (If you chose option 2 above) and our Ram is running 480mhz from 400 or DDR2-960 or if you are running 666mhz or DDR3-1333 OCed to 746mhz or DDR3-1492. If you can get your Ram going that fast, you did a nice job. This kind of Ram over clock will require a healthy voltage increase. Generally lowering the Ram speed will yield a higher cpu over clock. Again this is recommended for ADVANCED users only. If your not advanced, please view the links at the top of this post to learn more about over clocking Ram.
Any over volting of any kind requires adequate cooling. Please be sure you have purchased the proper hardware for over volting. This generally consists of heat sinks and fans. Case air flow always has a huge impact as well as ambient temps. If your room is 40c, your likely cooking yourself and hardware.
Maximum FSB, Or maximum CPU over clock.
In order to reach the Extreme of what your cooling can do, We will aim for a higher FSB. In order to do this, I like to recommend the lowest possible Ram, North Bridge and Hyper Transport speeds. Having set all 3 options to their lowest parameters, you are now weapons free to go Cpu over clocking. For this we will ignore the NB, HT and Ram speeds simply because they are at their lowest points. They may require increased voltage If you start passing native clock speeds and voltages.
So far we are only at 3360mhz with 240 x 14. If you are using DDR2 @ 200mhz the ram is 1:1 to the cpu, then the Ram is running 240mhz. for example. Let's take it up a notch to get to the point where we need some cpu voltage. Set FSB to 260 x 14. This will boot the PC at 3640mhz. At this point adding voltage would be a great idea. Please NOTE: Some cpu's may need a little voltage between 400 and 600 mhz. every cpu is different. The 940BE and Sempron 140 will both do 3600mhz at 1.4v. Using 1.4v for a base clock boot at 3640mhz. If it doesn't boot try more. Do a little at a time. 1.4125v. Then 1.4250v. If you think it needs more.... 1.4375v. What ever is the smallest increment is the best way to over clock.
While in windows first thing to check is the Temps. I strongly suggest this for those who use air cooling in warmer environments. 60c is a recommended max temp at a stock configuration. Some mother boards will have a setting to ignore temps and allow the Cpu to run to hot. I do not suggest running a over clocked cpu over 50c. The higher the voltage, the lower you want/need the temps for an actual stable over clock @ load Most decent air cooled PC's should be able to achieve 3600mhz providing The NB, HT and Ram is configured properly.
Can't Cool the Quad? Want to save some power while OCed? -->
x2's BE are easier to cool. If you have a quad core cpu, your mother board may have an option for down core. If you can manually turn off one or two cores to keep heat to a minimum while gaming if you don't have a case Front panel Cpu temp read out.
Perhaps you want to run an overclock 2/4/7. But the heat is a little high and you'd also like to save a little power to be a green. Well set an over clock and down core. Most games will game like a quad with only 2 cores set being the game only can utilize two threads any ways. If you need the extra cores, you can always quickly restart and engage the downed cores. If you set down core to 3, you'll have a Tri core. Set it to 2 and you'll have a dual core. you can even go the extra mile and run a single core for every day web browsing.
In addition to Down Core, Doing this does not lessen the amount of Cache the processor has. Essentially the quad (Phenom II) has 6m of L3 to work with. If you down core to a dual core, you'll still have 6m of L3 to work with. Also I'd like to mention, over clocking the x6 45nm (Thuban) cpu's that will be released hopefully by the end of Q2 2010, with down core enabled to a 5, 4, 3, 2, or even 1 core, will be lot's of fun and a great way to save power as well.
Over clocking is an art. It does take some skill, lots of trial and errors. Blue screens, hangs, insta restarts.... Every one in this forum has been there. So take the basics and tweak your little heads off.
ACC - what is it? What does it do??
ACC was intended for stability at higher cpu speeds maily being used by Phenom II Black Edition Cpu's. Each Cpu will have a different setting for maximum over clock and maximum stability. This will require time to perfect as well. If you have a lower end cpu and a certain mother board and bios, You might have the possibility to "Unlock" cores. There is a link at the top of this thread for further details and experiences.
Bios Hardware monitor
I this section of the bios, you'll be able to see the temps, fan speeds and volts on some of the mother board's hardware. Some of these functions can be used while over clocking and or perhaps hinder the over clock. The cpu fan missing will make bios post a warning then f1 to continue (Asus mobos). You can select and disable that sensor to rid your self of the pesky errors. If you see the cpu temp, and you have the option to ignore, I advise not to tell the sensor to ignore. If the Cpu boots AT THE CORE over the recommended temp, it can destroy the cpu. This is important. Cpu life (for example) is 1 million running hours. You can easily cut that in half or never boot the cpu again at all. From experience, this can and will happen.
Hard Drive Monitoring. This can be disabled for over clocking. Please take note. You can corrupt a hard drive. It doesn't happen as much as it did back in the socket A days, but it can happen. This is due to a fixed PCI at 100mhz. This Sempron corrupted my HD install. http://valid.canardpc.com/show_oc.php?id=920938 It won't boot 4ghz.
For the Best results** Go a little at a time. If your jumping 15mhz IE: 200/215 240/255 FSB speeds, Your DOING IT WRONG. And then you need to go back and again. If all else fails, Make a new thread and Ask for help. Every rig is different and will face different road blocks to higher over clocks.
FAILED OC RECOVERY:
Oh man the PC has failed to reboot. Hit the reset button 3 times and nothing. What can I do?
A basic and most simple way to recover your PC is to reset CMOS. Read your mobo manual for proper procedures. Some boards require a jumper and removal of the battery. Place the jumper back to original setting and replace the battery and boot. Newer Asus boards like the M4A79T has a button that's even lit up. Press that and your OC is set to stock/auto. You may have to reset time and date as well as OC settings. I suggest writing down settings as you make your way up the over clock. Then you can keep track of what settings are stable and what ones are not.
BIOS FLASH FAILED!
If this has happened to you, your not alone. Almost evey bios can be recovered. Some from a disk, like the original that came with your Asus board, or you need a floppy and the bios flash utility from the mobo manufacturer's web site. Worst case scenario, google your boards make and model with bios recover, your sure to find an answer. Just remember to be patient. If you can't find a way to recover the bios, RMA the board if it's still under warranty. Bad bios chips won't let you use your PC. Some boards may have replaceable chips as well. If you have a bad bios chip, look on the mother board and see if the chip is removable. If it is, google your make and model and bios chips. Your likely to find one cheap and not have to wait for RMA's or spend money on a whole new board. Best way for advise is to start a new thread in the AMD mother board section.
Over Clocking with AMD OverDrive.
Some settings in over drive may be usable only in Over Drive. Some settings may only be usable in Bios.
Most overclocks done in AMD overdrive can be set exactly the same in bios and then booted and visa versa.
We all know programs aren't they way to Over Clock. But today we make an exception.
Install AMD Over Drive (latest edition) This only supports 7 series and up, AMD chipsets.
I have also included other driver and utility links. *Most settings for AMD OverDrive can be applied in bios.*
New AMD Over Drive 3.1
Down load Over Drive from here-----> http://game.amd.com/us-en/drivers_overdrive.aspx?p=1
AMD Fusion for Gaming-------------> http://game.amd.com/us-en/drivers_fusion.aspx?p=1
AMD Raid/Disk performance Util Drivers-> http://game.amd.com/us-en/drivers_chipset.aspx
AMD CPU Drivers-------------------> http://game.amd.com/us-en/drivers_cpu.aspx
AMD offers true CPU OC only. This is with their BE or Black Edition Phenom I and Phenom II's. The Non BE Owners can read the above posted Athlon guide to get a feel for the over clocking process. Because the Multiplier is locked there's a little more adjustments to be made. After you have installed OverDrive, give it a walk through to get used to it's easy to manage tab system for application navigation.
To get started. Locate the preference tab in AOD. select "Advanced Mode" for more detailed over clocking. Basic mode is simplified by giving one simple slider for overclocking when you click the Performance Control. The slider moves from Default to High Performance. The High performance setting only brings the cpu to 3400mhz. I'm using a Phenom II 940BE ftw. **This program works exactly the same for Phenom I and Phenom II processors just at different clock speeds.**
Now that your in the Advanced mode, you can click on "Performance Control" Tab. You should see many more sliders. On the left side there is Core multipliers (one for each core) and HT multiplier, HT ref. Clock (or cpu FSB) and PCIe® Speed (Mhz). On the right side there is Voltage Sliders and readings. Very handy for Over Clocking.
For BE Users, The Multiplier is the easiest way to change core speeds. If you have 3000mhz 200x15 and you up the multiplier .5, that will give a 3100mhz core speed. When you adjust the slider there will be a target speed and actual speed displayed. If you want to apply the setting, click the apply Tab at the lower right hand corner. Most Phenoms can do 200-400mhz Over Clock before needing a cpu Vcore voltage increase. Voltage usage will vary between system and processor.
HT Ref. Clock increase is easily done with AMD OverDrive also. The Slider starts at the default 200 front side bus speed. The HT slider is defaulted between 1.8 and 2ghz depending on the Phenom. Phenom Agena core for example is 2000mhz stock. By increasing the HT ref. slider you'll notice the Core, HT, NB, and Ram speeds will be increased in Target Speed. Each one of these pieces of hardware will Be Over Clocked. I suggest watching the HT, being sure it's under 2200mhz to play it safe at first. Usually around 2400mhz a voltage increase for the HT/NB can be applied. Voltage needed will vary upon each chipset and system build as well. Most Ram's can handle between 30-40mhz or so from 800mhz without needing voltage increase. This also will vary between different systems. Unless AOD offers a down clock in Memory speeds, You'll have to do that in bios. I usually set mine either at 667 or 533 for even higher HT ref clocks or FSB over clocks. Learn more about Non-BE overclocking in the Athlon sticky provided for you at the top of this page if you have more questions regarding FSB or HT ref clock over clocking. There's also links for memory setup and over clocking.
Sometimes Over clocks can be done by over clocking the cores separately. This might help get a higher max OC on just one of the cores instead of all of them. Phenom Agena are common for this. Over clocking cores separately may also help aid in stability at higher core clock speeds.
There are many that OC like this.
Phenom (agena)---------------------------- Phenom II (Deneb)
CPU 0: 3.20 ghz ---------------------------- CPU 0: 4.0 ghz
CPU 1: 2.90 ghz ---------------------------- CPU 1: 3.7 ghz
CPU 2: 2.80 ghz ---------------------------- CPU 2: 3.5 ghz
CPU 3: 3.00 ghz ---------------------------- CPU 3: 3.6 ghz
Example Pic Of multi core over clock and HT ref overclock combined.
A voltage increase. When??
Most people will be able to push 400mhz on a stock voltage. Sometimes more sometimes less. A real simple way to tell is when you can't boot the PC after raising FSB or upping the multiplier. Simply add a small amount of voltage.
Stock cpu 940BE = 3000mhz on 1.35v stock.
OCed cpu 940BE = 3600mhz @ 1.3750v stable full load tested.
If it is not full load stable tested (I mean more than 2 hours not 10minutes) then try a little more.
OCed cpu 940BE = 3600mhz @ 1.3750v NOT stable
OCed cpu 940BE = 3600mhz @ 1.4125v STABLE couple hours load.
V-core on over clocks will vary Not one person in the world can give you an exact v-core your machine will actually need to be stable.
Setting cores at different clocks seems to help keep stability.
The Multiplier will NOT change RAM timings or speeds.Thus creating true CPU OC.
Useful example of different core clock speeds.
Affinity set for Explorer core 0 3.20 ghz. (This helps keep explorer smart as can be with the most power)
Affinity set for gaming CPU 1 & 2 between 2.9 and 2.8 ghz. (Gaming lowest cause most games are graphics heavy)
Affinity set for Folding @ Home core 3 @ 3.0 ghz. (A good folding number in my opinion)
On Die memory tweaks with AMD Over Drive.
The bottom half of AMD Over Drive shows on die memory controls.
All the way from CKE Drive Strength to Processor On-Die Term A and B.
By upping Drive strengths we can move the data faster without higher clock speeds.
Lowering Drive Strengths may increase Over Clock, but nothing is confirmed.
AMD OverDrive Utility
System Information Tab: This displays Processor, Cache, mem SPD, And Memory details of the current system settings. With 3 tabs below that, Basic, Detailed and Diagram, You can really get a picture of how your system is set up. The Diagram Tab is my Favorite. When you click an Icon, it displays the specs.
System Information Tab screen shot Basic tab http://i269.photobucket.com/albums/j...foTabBasic.jpg
System Information Tab screen shot Diagram tab http://i269.photobucket.com/albums/j...TabDiagram.jpg
Status Monitor Tab: This is where the Temps and Voltages can be viewed. There is a CPU, GPU, and Board Status tab.
Status Monitor Tab screen shot: http://i269.photobucket.com/albums/j...MonitorTab.jpg
Performance Control Tab: With 7 sub-Tabs from Clock/Voltage, Memory, Fan Control AMD Smart Profiles, Benchmark, Stability Test, and lastly Auto Clock. Clock/Voltage and Memory Tabs Are where the overclocking takes place. The rest are pretty self explainitory. Advanced Clock Calibration can be enabled in this tab as well.
Performance Tab, Clock and Voltage 940BE stock screen shot. http://i269.photobucket.com/albums/j...getabstock.jpg
Performance Tab Memory Configuration 940BE Screen Shot http://i269.photobucket.com/albums/j...emTabstock.jpg
Preference Tab: This section lets you chose between Novice and Advanced Mode. You can even chose which Environment Control Source. Super I/O or southbridge. You can also save your profiles under the performance tab, as well as excess the Raid expert and CCC or Catalyst Control Center.
Preference Tab Screen shot http://i269.photobucket.com/albums/j...ferenceTab.jpg
While over clocking you can Leave Clock Skews on Auto. The tolerances should be made by the bios. You will may or may not get more Over Clock by adjusting these.
Set Bios to manual Over Clock.
Depending on the board is depending the options.
Again multiplier Over Clock is gonna be the way to get the fastest CPU Over Clock results.
All of the above also applies to the 7750x2 BE and 550BE x2 Phenom II. The only difference is a slightly higher clock, Two less cores, and an HT speed of 1.8ghz. This processor is great for Over Clocking. The CPU will do up to 3.1 ghz on stock voltage. In some cases only to 3.0 @ stock volts. (7750/7850BE.) The 550BE comes stock @ 3100mhz.
Overclocking HT Phenom Class I and II
This section will help guide you through the HT/NB Overclock seperately from the CPU, Unless you are Over Clocking using the FSB only. In the Bios look for HT or NB multiplier. Most boards will have one or the other and in my case Both.
HT OC Phenom I & II
Stock HT speed = 1.8ghz
Simply set the multiplier for the HT to x10 for a HT link of 2000mhz. This should require no voltage increase. If you set the HT/NB to x11 or 2200mhz you Will need to add voltage to the HT and NB. For a HT @ 2.2 HT voltage can run as high as 1.4 - 1.5 volts. set it there for stability. The NB will also need a voltage jump at speeds of 2.2ghz. I generally like a 1.4 volt setting.
Phenom I and Phenom II HT/NB OC quick look.
Stock HT speed = 2.0ghz or 1.8ghz 7750 BE & Phenom II
To run a HT of 2.2ghz, simply see bios for HT multiplier and set it to x11. This will give a speed of 2.2ghz HT/NB. No voltage or slight voltage increase may be required to run up to 2.2 ghz. If you set the multiplier to x12 for a speed of 2.4ghz, a voltage increase will be needed to the HT/NB. The HT can be set to 1.4 - 1.5 volts and the North Bridge any where from 1.45 volts to 1.55 volts. 400mhz OC's require a voltage increase.
Like always, keep an eye on temps. When Over volting the NB it can heat up just like any processor. HT speeds should always run equal or less than that of the north bridge. If the HT is higher, it will not boot.
Here is an example of a 9850 Phenom OC with a 400mhz HT/NB oc.
Here is an example of an Athlon 7750 BE @ 3.2ghz with a 400mhz HT/NB oc.
Phenom II 940 OC. Used with AMD Over Drive!
Mother Board: Asus M3A32-Mvp Deluxe Wifi W/Mempipe
Cpu: AMD Phenom II 940 x4 3.0ghz AM2+
Random Access Memory: Muskin DDR2 1067
Cooling Type: Liquid Cooled
Video Out: 4850x2 Crossfired with 4850 (tri Fire)
MoBo Bios Version: 1502
Ati Driver version: Catalyst version 9.2
Testing OS: XP64 and Windows 7
AMD Over Drive Version: V 2.1.6
The cpu is stable stock @ 3ghz and a voltage of 1.35v stock.
My first attempt will be an OC on stock voltages. Which I might add are higher than I expected.
So on that note I will lower them to 1.3 volts. I will do mostly multiplier OC's for this.
PhenomII 940 x4 3.2ghz @ 1.3 Vcore.
Phenom II 940 x4 3.4ghz @ 1.30v
Phenom II 940 x4 3.5ghz @ 1.35v
Phenom II 940 x4 3.6ghz @ 1.35v
Phenom II 940 x4 3.7ghz @ 1.36v
Phenom II 940 x4 3.7ghz|cpu-2.4ghz|HT/NB|
The OC continues....
Phenom II 940 x4 3.8ghz @ 1.392v
Phenom II 940 x4 3839.8mhz|cpu-2.425ghz|HT/NB|
This evening ends with an unstable 4.1ghz OC.
Shots of AMD Over Drive Memory tab.
First one is stock. The second one is my general tweakage. Yea I use AOD. Works wonders for this type of tweaking. Something Bios does not offer in older mother boards.
Instanbul PDF info by microway - http://www.microway.com/pdfs/microwa...er_2009-07.pdf
Phenom Data Sheets
Bios and Kernel Developers Guide
Power and Thermal Data Sheet Phenom II
Family 10h AMD Phenom™ Processor Product Data Sheet (pdf)
Family 10h AMD Phenom™ II Processor Product Data Sheet
Revision Guide for AMD Family 10h Processors
AMD 940 Pin
AMD Athlon x2 64 Family 0Fh Desktop Processor Power and Thermal Data Sheet (pdf) http://support.amd.com/us/Processor_TechDocs/33954.pdf
AMD Functional Data Sheet, 940 Pin Package (pdf) http://www.amd.com/us-en/assets/cont...docs/31412.pdf
AMD Socket 940 Design Specification (pdf) http://www.amd.com/us-en/assets/cont...docs/25766.pdf
AMD Socket 940 Qualification Plan (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/30353.pdf
AMD Opteron™ 940 Product Data Sheet (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/23932.pdf
AMD Athlon™ 64 FX Processor Product Data Sheet (pdf) http://www.comx-computers.co.za/down...athlon64fx.pdf
AMD Opteron™ Processor Power and Thermal Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/30417.pdf
AMD Family 11h Processor NoteBook
11h Processor Power and Thermal Data Sheet for Notebooks (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/43373.pdf
Older AMD Cpu Support.
AMD Geode™ NX Processors Data Book (pdf) http://www.amd.com/files/connectivit...x_databook.pdf
AMD Athlon Processor Model 1 and Model 2 Revision Guide (pdf) http://www.amd.com/us-en/assets/cont...docs/22557.pdf
AMD Athlon Processor Module Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/21016.pdf
AMD Duron Processor Model 3 Data Sheet (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/23802.pdf
AMD Athlon Processor Model 4 Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/23792.pdf
Athlon XP Processor Model 6 Technical Data sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/24309.pdf
AMD Athlon™ Processor Model 6 Revision Guide (pdf) ftp://ftp.atcomp.cz/cpu/amd/Athlon/24332%20(AthlonXP%20Model%206%20Revision%20guide). pdf
AMD-K6 Processor Revision Guide Model 7 (pdf) http://www.amd.com/us-en/assets/cont...docs/21846.pdf
AMD-K6 -2 Processor Revision Guide Model 8 http://www.amd.com/us-en/assets/cont...docs/21641.pdf
Opteron Rev 3.09 February 2004 Processor Data sheet (pdf) http://www.cybernex.co.uk/opteron_pr..._datasheet.pdf
AMD Athlon MP Processor Model 10 Data Sheet for Multiprocessor Platforms (pdf) http://www.amd.com/us-en/assets/cont...docs/26426.PDF
AMD Athlon XP Processor Model 10 with 256K L2 Cache Data Sheet (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/27375.pdf
AMD Functional Data Sheet, 939-Pin Package (pdf) http://www.amd.com.cn/CHCN/assets/co...docs/31411.pdf
AMD Athlon™ 64 FX Processor Data Sheet (pdf) http://pdfs.icecat.biz/pdf/1761420-7592.pdf
AMD Functional Data Sheet, 754 Pin Package (pdf) http://www.amd.com/us-en/assets/cont...docs/31410.pdf
AMD Athlon™ 64 Sempron Processor Power and Thermal Data Sheet (pdf) http://www.orpheuscomputing.com/down...O2BX-specs.pdf
AMD Sempron™ Processor 754 Product Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/31805.pdf
AMD Athlon™ 64 Processor Power and Thermal Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/30430.pdf
AMD Athlon Processor Module Data Sheet (pdf) http://www.amd.com/us-en/assets/cont...docs/21016.pdf
AMD-K5™ Processor Support for the AMD-K5 Dual Voltage Processor (pdf) http://www.amd.com/us-en/assets/cont...docs/19766.pdf
EOCF Owners, admins, and public, are NOT responsible for system failure of any kind. You are responsible for your own PC and make the sole decision to void warranties, Fry hardware, and corrupt hard drives.
I want to thank EOCF admins, mods, and members for making this thread a sticky. Also Big Thanks for the thread title name change.
Last edited by ShrimpBrime : 07-23-2013 at 09:24 PM. Reason: Added a little insite about cooling
|07-06-2008, 07:22 PM||#3|
<-- My Art -->
It may run with another chipset but having any options to change any Mobo settings won't be there. This also depends on the processor. Unless it's a BE voltage and FSB will not be changeable any way. Although it may let you adjust RAM timings. Give a whirl and post your results.
|07-06-2008, 11:56 PM||#4|
Well I have a 9850 BE so I'm good on that part. I have a GeForce 8200 Chipset and when I run Overdrive, it says that AMD Series 7 Chipset not detected or something. I was just wondering if there is a way around this.
|07-07-2008, 12:25 AM||#5|
<-- My Art -->
|07-07-2008, 03:49 PM||#7|
|07-08-2008, 11:45 PM||#8|
<-- My Art -->
Orac.... Thanks for the vote!
I added a really useful pdf about k10's at the bottom of the original post.
This will help with more technical information.
Last edited by ShrimpBrime : 07-08-2008 at 11:45 PM. Reason: Automerged Doublepost
|07-09-2008, 09:23 AM||#10|
Running System Stock
Last Seen: 07-10-2008
I have not been able to get my system over 2.7Gghz and stable. I have managed 2.8Ghz, but it always gives the BSOD eventually. I am running Windows Vista x86. My overclocking attempts for this speed have all been CPU multiplier only. My motherboard and cpu do not seem to be overheating at any point, the highest I see the mb get under load is 40 Celcius, and the CPU 50-54 Celcius. Can anyone suggest a possible solution?
Phenom 9850 BE
ASUS M3A32-MVP Deluxe/WiFi AM2+/AM2 AMD 790FX ATX AMD Motherboard
2x2GB Corsair Domination 1066 DDR2 memory
Thermaltake 770i BigWater liquid cooling system (water block setup on cpu only)
PowerColor HD 4850 Crossfire Graphics Card
|07-09-2008, 09:32 AM||#11|
Master Shifu sees you
i used to be able to get 3 out of mine until i updated my BIOS due to other issues, and now i can only get 2.7 too. seems faster than the 3 somehow tho, try updating your BIOS and/or giving your CPU and NB some more juice after you have got some more effective cooling - i can run mine under full load at 1.55v and not see more than 50
|07-09-2008, 03:18 PM||#12|
I updated my BIOS for my GF8200A and it gave me more options to OC. Haven't tried them out yet cuz of summer classes and all. I'll give them a try later and see how it goes. Still sitting at 200*13.5 at 1.300v. Going to try 200*14 later. Do I need a voltage increase if I go 200*14?
|07-09-2008, 11:54 PM||#15|
<-- My Art -->
1st make sure memory is in unganged mode.
2nd Manually set the Ram to 800. (If this doesn't help try 667)
3rd Be sure Memory hole is enabled.
4th AMD cool and quite is disabled.
These are the basic solutions first.
I run 3 gigz of Ram on the same Mobo cause four it just seems unstable. But every system is different. Some Phenoms may only do 2.8 ghz. Mine only gets Around 3.150 ghz before hangs but I've seen 3.4 ghz. Kinda wierd really. Theres are large range of OC's for the Phenoms. It's almost like there's no "common ground" for Over Clocking. OR There are different serial phenoms that have better steppings than others
(Use a separate HD so you can save any data from the current install)
Last edited by ShrimpBrime : 07-09-2008 at 11:55 PM. Reason: Automerged Doublepost
|07-10-2008, 07:37 AM||#17|
Last Seen: 01-02-2015
From: Atascadero, CA
iTrader: 20 / 100%
I've attempted (on 2 different AM2+ boards) to get mine past 2.8GHz as well. No Luck. OCing via AOD or the BIOS has no impact. I must agree that there are large range of OC's for the Phenoms, ie the 9850. Perhaps it's the CPU? Or the BIOS...? Not sure but does bite Royal Whale Balls.
JAAFB AA 0810GPBW
|07-10-2008, 12:51 PM||#18|
--Don't know where this is--
I can't get anywhere past 2.8GHz...that seems to be the highest it can go for me. I can get 2.940GHz (210*14 via BIOS) but after 10 minutes or so the computer locks up and the graphics get all funky. Still using my GF8200A.
|07-10-2008, 01:15 PM||#19|
Learning To Overclock
Last Seen: 11-23-2009
iTrader: 0 / 0%
Model: Phenom 9850 Black edition
Batch:JAAFB AA 0811 BPJW
Frequency: 2880Mhz (240 x 12)
Motherboard/chipset: MSI K9A2 Platinum
Cpuid validation url: http://valid.x86-secret.com/show_oc.php?id=387194
Cooling: Zalman 9700NT
Model: Phenom 9550
Batch:JAAHB AA 0817 BPDW
Frequency: 2800Mhz (255 x 11)
Motherboard/chipset: ECS A780MG-A
Cpuid validation url: http://valid.x86-secret.com/show_oc.php?id=385588
Cooling: Xigmatec HDT92
The 9550 can reach the same speeds as the 9850, after 2.9 they both BSOD
both on same 1.3V and same mem ect.
This must be a problem with the SB, otherwise what is the point of a BE if they all reach same max?
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