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[Maybe] SOLVED: Previous Stable OC won't boot

post #1 of 13
Thread Starter 
OK guys I'm getting pissed. I don't kow if my chip has degraded or what.

Hardware:
E6400
Zalman 9500
Gigabyte P35-S3G (Newest F5 bios)
2 x 2 gig G.Skill PQ 800 mhz DDR2

Stable since 2007:
8 x 401 mhz fsb = 3208 mhz @ 1.35 (VID @ 2.13 = 1.325)
Everything else aut/stock

Following are all screen shots in my bios. The only real change is when I installed Win 7 x64 Pro a few weeks ago I changed the hard drive from sata to AHCI (could this cause instability?)

I have been trying various settings to try to get it to boot at 3.2 ghz, so if i've changed something that I shouldn't have from the screen shots plese let me know.






Why do my hd's not show up now that I have it in AHCI mode?? Is this normal?














Edited by CravinR1 - 1/3/11 at 2:54pm
post #2 of 13
Thread Starter 
2 more bios pics (taken from iphone sorry)

post #3 of 13
Look up your CPU and NB voltages if possible and manually put them into the BIOS. Then bump it up a few notches for the CPU volts. Hopefully that'll add stability.

If you have the same temps, fsb, mutli, bios settings, and same everything, then degradation is very likely. I doubt going to W7 and having AHCI instead of SATA would cause this. Aren't hard drives handled by the south bridge anyways?

You could try turning off EIST or whatever the BIOS option for SpeedStep is where it down clocks while idle. I've heard that could cause problems, but not after 3 years of stability.
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post #4 of 13
Won't boot when OC'd or won't boot at all?

If it's when OC'd, try going back to your previous stable settings and just up the Vcore a notch or two; my old e6750 was stable for almost 3 years before suddenly deciding it needed another notch for some reason. While that might not do the trick, it's at least the easiest thing to try.

If it won't boot at all even with default settings, I would assume it's from changing the hard drive from sata to AHCI. I honestly don't know much at all about that or how to fix it, but you could try just setting it back to SATA?
    
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post #5 of 13
Thread Starter 
I've bumped it CPU vcore 4 notches to 1.375 and bumped mch and nb volts and even memory by 1. I've turned off EIST and speedstep to no avail

It starts, restarts, then boots to windows at default speeds.
post #6 of 13
Definitely AHCI! I had the same problem before.. would BSOD when I entered windows. Have you done the registry entry thing to enable AHCI in windows 7? I forgot the specifics but you have to add a file to the registry
post #7 of 13
Thread Starter 
I had AHCI set when I installed so it installed the drivers. It is not a windows issue as it does it the second bios shows the speed. Windows isn't an issue.

My understanding is the AHCI drivers have to be installed if you want to switch to AHCI mode after installation.
post #8 of 13
Thread Starter 
I loaded the safe defaults and looked over all the options. The only thing I didn't really know what did I left alone (HPET)

I had prevously set it to HPET 64 bit (well I have a 64 bit cpu and 64 bit os) but left it at default 32 bit and it booted at the previously known good settings

Basically: 400 fsb x 8 multi @ 1.35 volts. Everything else auto with EIST & Speedstepping enabled.

post #9 of 13
Quote:
Originally Posted by CravinR1 View Post
I loaded the safe defaults and looked over all the options. The only thing I didn't really know what did I left alone (HPET)

I had prevously set it to HPET 64 bit (well I have a 64 bit cpu and 64 bit os) but left it at default 32 bit and it booted at the previously known good settings

Basically: 400 fsb x 8 multi @ 1.35 volts. Everything else auto with EIST & Speedstepping enabled.
Not sure how HPET could affect that, or if it even benefits the system performance at all. Weird stuff.
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post #10 of 13
If you are still having problems check this site link http://www.ithinkdiff.com/how-to-ena...-installation/
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