intermittent boot issue

[alboy1975]

Overclocked CPU: OverClocked Intel® Core™i7 Six Core Processor i7-990X 4033ghz

OC Settings CPU RATIO: 30.0
BCLK FREQ: 134
DRAM: 1612MHz
UCLK: Auto
CPU VOL: 1.36
QPI/DRAM: Auto
DRAM BUS: Auto
HYPER THREADING: Enabled
SPEEDSTEP: Disabled

Motherboard: ASUS® RAMPAGE III EXTREME: 3-Way SLI & CrossFireX, SATA 6.0GB/s, USB 3.0

Memory : 12GB KINGSTON HYPER-X TRI-DDR3 1600MHz, X.M.P (3 x 4GB KIT)

Graphics Card: Powercolor RADEON™ HD7870 x2 XFIRE

1st Hard Disk: 240GB OCZ VERTEX 3 SERIES SSD, SATA 6 Gb/s (upto 550MB/sR | 520MB/sW)

2nd Hard Disk: 1TB WD CAVIAR BLACK WD1002FAEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)

1st DVD/BLU-RAY Drive: 24x DUAL LAYER DVD WRITER ±R/±RW/RAM

Power Supply: CORSAIR 1200W PRO SERIES GOLD (AX1200) 80+ MODULAR PSU

Processor Coolin: COOLIT ECO C240 A.L.C (ADVANCED LIQUID COOLER)

Thermal Paste: ARCTIC COOLING MX-3 HIGH THERMAL CONDUCTIVITY COMPOUND

Sound Card: Sound Blaster® X-Fi™ Titanium - Fatal1ty Champion Series

os window 7 64bit professional



Hi for once my computer is running really nicely. I recently did a full reinstall and for the first time window actually recognised i have an ocz ssd. Everything is nice and snappy, temp great, everything running great. However, I have an intermittent boot issue.

A couple of time a week when i fire up computer in the morning windowds repair starts and says tries to fix 'corrupt ntsokrnl.exe. to fix it the repair simply restores to most recent restore point.

Now, I've looked on the web and causes range from keyboard issue (i have a logitech G15) to buggered hard drive. I really don't think it's that serious/, or should i say hope it isn't. It seems quite a lot of people on web have had this issue but i can't find a good solution.

one website said to put this in at cmd: extend d:\i386\ntoskrnl.ex_c:\windows\system32. I believe this would replace file from install disk on my computer. But i don't think it works with windows 7. In fact on some sites it suggests that the file is not corrupt at all.

I honestly have my computer running the best it has ever been. It is just this issue. I might be misremembering, but i think it happens after installing software. for example, this morning i installed gpuz and cpuz and when i booted up the computer tonight the repair screen appeared.

I'm also pretty sure it did not happen before i installed logitech keyboard drivers, but this could be a coincidence. I have check event log and there are no major issues. I did have wmI issue and dchp issue but i fixed them with little problem.

Sorry if i appear to be rambling, just trying to include as much info as possible. Cheer in advance for any advice you can give.

[Mr.Scott]

Test the drive and the ram. You're getting data corruption from something.

[Ichikawa]

I remember having a similar problem with my second computer and it was my video card nvidia evga geforce 8800 GT.

I also have a problem with my keyboard Microsoft reclusa, whenever I turn on my PC windows freezes so I bought a cheap keyboard and connected it so both keyboards are connected now and my computer doesn't freeze.

Try changing ur keyboard and if the problem still persists try changing ur video card if u have a spare one.

[lexandro]

Originally Posted by Mr.Scott

Test the drive and the ram. You're getting data corruption from something.

I concur with Mr Scott, its sounds like data corruption to me to. In cases like this Ive seen its either from memory being overclocked a little to much that causes corruption, or its something like the PCI isnt locked to 100 so data corruption occurs to the HDD.

As Mr Scott said test both the HDD and memory for problems and also run a full stability test. Any fails for any reason on a stability test means the system is unstable and will require lowering of any overclock on it.

[mimart7]

Overclocking can cause data corruption, run memtest, also run chkdisk. You may want to run the command sfc/scannow, before trying anything, first.

[PommieB]

I personally don't like Chkdsk, I'd rather run third party software, the only useful thing Chkdsk does is find corrupted files, if there's bad blocks it freezes, in my opinion it's only useful for early detection anyway. It worth a run anyway.

I agree with Mr Scott, it sounds like data corruption, the type that Chkdsk can't handle. I'd back-off the overclock a bit and see if it solves the problem.

[mimart7]

If data corruption is that bad, backing off the oc, and maybe a fresh install are in order. Data corruption will only get worse over time.

[python134r]

Yup, do a fresh install, see if it works well, have you checked each piece of hardware?

[alboy1975]

Seems to have been my keyboard. i uninstalled drivers and i've not had issue since.

[hostage67]

The "ntoskrnl" kind of gets a bad rap. It is a core file used by almost everything in the system, so it often gets flagged as the culprit to a problem caused entirely by something else. This file being corrupt is rarely the issue.

It sounds like you have already found the problem, but typically these errors are caused by other drivers and updating your drivers will often resolve this error. Bad memory (or a bad overclock on memory) can also incorrectly flag issues with the ntoskrnl.