UNIXgod's Official Phenom & Phenom II BIOS OC thread

[Orac]

o dont think there is much of gain until the HT raises by quite alot (500+MHz) and as i have only seen a phenom running no more than an extra 200 there is little to gain. the later athlons (k8 arch) like alot of HT and i had mine running over 1600 at one point (it was 1000 standard) which seem to make the CPU faster at lower clocks. 3.4 would be slower than 3.3 with a high HT

[cstmcomps]

That was sort of the same with the 6400BE dual-core. It liked a high HT, but like Orac said, these Phenom's don't really care either way. The best thing is to just have the HT stable and the NB running as cool as possible.

[D_L_B]

As long as the NB stays at 2000 (which is in the auto setting), I will lower the volts back down from 1.35 to 1.3 since there is no need for the extra voltage there. I am going to give the CPU's 1.4-1.425V and see if I can get 3.1Ghz stable with decent temps.

[cstmcomps]

The issue that most people have is that once they have to start giving voltage they hit a wall on how far the cpu will clock. 3.2 is not uncommon, but hard to reach even on water... 3.1 is achievable sometimes on air, but watch the temps like crazy...

[Orac]

+1, before i way over did the v0core on my CPU (phenom dont like 1.7v) i was runnng 3.1 with 1.65v-core and was having difficulties keep the temps below 60 with the CPU under water

[ShrimpBrime]

I have run 400 mhz OC to the HT/NB by setting it via bios. Right now I'm running 2.8ghz and a 2.2ghz HT/NB speed all by multiplier and stock voltages on all of it.

400 mhz+ requires me to raise NB to 1.55 volts, and HT to 1.4 volts. For higher Clock speeds (over 3ghz) I like to run the SB voltage up as well. Not super stable unless you use Over drive to do minor tweaking. Without tweaking I can fold 100% load all night no problems. It's when these Agena's hit 3.1 real issues occur and I bet most can't keep it stable for a week.

The Only way I can keep 3.2 on just one core is to alter the clocks on all of the cores. It's almost as if there is a harmonic inbalance when the cores are all humming the same high tune.

[Orac]

i ran my 9950 fpr over 1 month at 3.1, but i almost killed it when i pushed for a little more and now no more than 3 is possile - well seems like a good reason to splash out on deneb

[cstmcomps]

The only reason why I don't have a deneb in my system is because I am leaving soon and I won't be able to use the computer for nearly a year. By then I'm sure there will be a deneb that is 4Ghz stock on a socket AM3 mobo. I'll wait till then to get on that wagon.

My 9950 is at 3.35Ghz now on 1.4875 volts, liquid cooled, with an ambient idle temp. Any more and the system is totally unstable. Less than that it's also unstable. I guess I just managed to find the sweet spot on this proc.

[ShrimpBrime]

I suppose I should have bought the 9950. But I bought this 9850 straight away when it came out. I just couldn't wait. But for only a couple of hundred mhz more OC it's not worth buying one even before the Deneb was released.

[rukik]

i wish i could get my 9950 to run at 3 ghz @ 1.325 volts ... i have it at 200X15 and i just can't get stability anymore... is it possabe i have my NB and HT up to high? running it at 2400 mhz

[cstmcomps]

yes, that is far too high for stability. Drop it back down to 2000 and I bet your system will be a lot more stable. Then give the proc some more juice. It is not uncommon for the 9950 to want somewhere in the range of 1.4-1.425 volts at 3Ghz... play with it some and see what you can do.

[rukik]

thanks i will try

[ShrimpBrime]

Originally Posted by rukik

i wish i could get my 9950 to run at 3 ghz @ 1.325 volts ... i have it at 200X15 and i just can't get stability anymore... is it possabe i have my NB and HT up to high? running it at 2400 mhz

Up to high for the lack of voltage. Feed the HT and NB some voltage. I generally set mine to 1.55 NB Vcore and the HT to No Less than 1.4 - 1.5. In the pic below it is 1.5 HT Vcore.

The Cpu voltage in Core Temps is correct.

[cstmcomps]

Shrimp... I can't help but notice that your RAM timings are very high for 1066 RAM. Most of the time the default is 5-5-5-18-23. If it helps you can give the RAM another .1 volts to get those timings stable.

[D_L_B]

Originally Posted by ShrimpBrime

Up to high for the lack of voltage. Feed the HT and NB some voltage. I generally set mine to 1.55 NB Vcore and the HT to No Less than 1.4 - 1.5. In the pic below it is 1.5 HT Vcore.

The Cpu voltage in Core Temps is correct.

Did you bench the difference between 2Ghz NB/HT and 2.4Ghz NB/HT? I am curious to see what performance increase could be had by doing so.

I take it you achieved those speeds by upping the NB multiplier to 12 right?

Do you have a fan on your NB chipset? MY DFI board only has the mosfet block.

[ShrimpBrime]

Originally Posted by cstmcomps

Shrimp... I can't help but notice that your RAM timings are very high for 1066 RAM. Most of the time the default is 5-5-5-18-23. If it helps you can give the RAM another .1 volts to get those timings stable.

No those are stock timings for Muskin 1067. They have plenty of head room for OCing. No added voltage is necessary unless I push to hard. Real nice Ram I must say. Better than the Kingston I had.

Originally Posted by D_L_B

Did you bench the difference between 2Ghz NB/HT and 2.4Ghz NB/HT? I am curious to see what performance increase could be had by doing so.

I take it you achieved those speeds by upping the NB multiplier to 12 right?

Do you have a fan on your NB chipset? MY DFI board only has the mosfet block.

Actually in bios I can OC the NB and HT separately. I do them together. In bios it gives me a 2.0, 2.2, 2.4 ect settings. The NB is multi. If I leave the NB on auto and set the HT to 2.4 it will auto matically set the NB to the same speed. Much voltage is needed to run clocks that fast.

And no I didn't get into benching HT against itself. 2.2 vs 2.4 ect. I do know that Pimod times improve just by a little. I have not run wprime or multi pimod.

My NB has a massive heat pipe set up. The chipset has a Ram heat pipe set up. It is not in this picture. I suppose later I could take a pic of my mobo for ya if you want. I have the wifi edition of this board.

[cstmcomps]

I thought about getting that board. I wanted the integrated wifi and the ram syncs, but I chose against it because I would have to run ATI cards. Then I would have to get a dedicated PhysX card instead of using a more powerful Nvidia card for PhysX.

[ShrimpBrime]

Originally Posted by cstmcomps

I thought about getting that board. I wanted the integrated wifi and the ram syncs, but I chose against it because I would have to run ATI cards. Then I would have to get a dedicated PhysX card instead of using a more powerful Nvidia card for PhysX.

There is only a few games that actually use hardware rendered Physics. Ghost recon advanced war fighter for example. How come ATI cards game just as well as Nvidia with out the Physics on the chip. Real easy....most Physics are software rendered any way and is a waste for Nvidia to even use the old Agea Physics.

I have one of the old Physics cards from Agiea. All it really did was create a bunch of heat in my box while I played games that didn't even need it.

You should have got that board. It'll let you use Nvidia. I had a 640 8800 gts running on this board. I gotta say...It worked fine.

[cstmcomps]

It won't run SLI, I run 2 GTX260's in SLI and a GeForce 9600GT for PhysX. I actually do see a lot of difference, more because the 9600 can produce the effect a lot better than the Ageia chip could.

Part of what makes the effect more so now, is that the newer chips can do it better. They are designed to take it away from the software so that they can handle it themselves. They aren't perfect at it since Nvidia just recently acquired the technology. But as more and more games are designed to utilize it Nvidia will be forced to improve it.

Eventually ATI will reverse-engineer the technology, and then they will start to support it as well.

[ShrimpBrime]

Well physics don't Need to be rendered on a gpu. Take Allen Wake for example. It will actually utilize one core of the Cpu to render the physics.

I suppose it depends on how the game is made. Most seem to be made carrying the Nvidia logo.