First overclock yields data corruption.

warren_1979 · 18 Nov 2007 at 17:28

I attempted my first overclock yesterday using a e2140 and a Gigabyte p965 DS3. I thought everything was going OK but now I've just been greeted with a 'checking hard drive for consistency' blue screen when I turned the PC on. The PC did its checks and booted into windows but its spooked me a little.

Here's my spec.

2140
Gigabyte P965 DS3 rev.3
2 Gig Crucial Ballistix PC6400
Corsair HX520
SATA 160gb WD harddrive (on Jmicron controller)
8800gt

The 2140 is sitting at 2.8ghz and although I haven't fully stressed it yet I was playing Crysis all last night no problem. I locked the PCI-E frequency at 102mhz.

Strange thing is since the overclock when I turn my PC on I get some high frequency noise that sometimes masks the post beep and it sounds exactly like a noise I got when I first built my PC and attached two IDE drives incorrectly.

I've noticed since the 'checking hard drive for consistency' blue screen there is a BIOS entry that wasn't there before in the PnP/PCI Configuration screen. Its called PCI Latency Timer (CLK) and its set to [32].

Whats gone wrong and how can I fix it?

footman · 18 Nov 2007 at 18:58

have you increased your cpu voltage?

Will_3rd · 18 Nov 2007 at 19:04

I think in the olden days if you didn't have your PCI/AGP bus' locked at 33/66mhz it could corrupt your hard drive. Not sure if it is the same for PCI-E.

I almost lost an install to overclocking as well think it was caused by putting too much stress on the memory controller or something.

warren_1979 · 18 Nov 2007 at 19:36

footman said:
have you increased your cpu voltage?

Yes mate to 1.35v. CPU seems happy at that voltage although I haven't done a 24hr stress test or anything.

I've just booted up my PC and that high frequency noise was there again. I'm sure its something to do with the SATA/IDE pathway but I'm not sure.

Will_3rd said:
I almost lost an install to overclocking as well think it was caused by putting too much stress on the memory controller or something.

How did you rectify it?

footman · 18 Nov 2007 at 19:59

do you have the alternative to put the drive on a different controller?

warren_1979 · 18 Nov 2007 at 20:05

footman said:
do you have the alternative to put the drive on a different controller?

I have an Intel ICH8 sata controller instead of the jmicron controller I could use is that what you mean? Wouldn't this be just the same though?

Will_3rd · 18 Nov 2007 at 20:08

warren_1979 said:
How did you rectify it?

Not sure hasn't happened again, managed to save my Windows install though.

Think the timings were too tight or something, ended up corrupting part of my boot hard drive. Was with a S939 setup though.

footman · 18 Nov 2007 at 20:14

warren_1979 said:
I have an Intel ICH8 sata controller instead of the jmicron controller I could use is that what you mean? Wouldn't this be just the same though?

try using the Intel controller. its just a hunch, but I had trouble some time ago with one controller and swapping it proved to be the answer.

warren_1979 · 18 Nov 2007 at 20:17

Could I swap my windows install HD straight over or do you think I'd need to reintall it?

footman · 18 Nov 2007 at 20:29

warren_1979 said:
Could I swap my windows install HD straight over or do you think I'd need to reintall it?

I must admit that did occur to me as soon as I had posted. Would it be a complete pain to clean re-install? Or do you have another drive you could install onto and see if you get the same response?

warren_1979 · 18 Nov 2007 at 20:37

No other drive mate. I'm going to swap over to the intel connector tomorrow, I hope it can sort it out. I'm sure I read on another forum that it was possible, although that could have been going from the ICH8 to the Jmicron, can't remember now.

Tonight however I'm going to have an hour or two on Crysis

footman · 18 Nov 2007 at 20:47

enjoy