Enabling AHCI completely wrecked my o/c stability

[The Sauce]

Had my new i5 750 system up to 4400 MHz @ 1.425v stable. Backed down to 4200 @ 1.35v because of temps. Completely stable, 24/7 prime, temps mid 60s. I decide to enable AHCI so I can hot-swap my HDDs out of my Easy-SATA drive bay and KABLOOEY! BSODs like crazy. Can't even run Prime for 2 seconds - instantly crashes. What gives? Anyone else run into this issue?

Shut off AHCI and went back to IDE compatability mode and now completely stable again.

PS - I had already fixed the Windows registry to enable AHCI. Windows was loading fine.

 

[TJCS]

PS - I had already fixed the Windows registry to enable AHCI. Windows was loading fine.

I did that when I was W7 RC, and I was getting some random freezing issues even though I also did the registry modifications. Some seems to be just fine changing to AHCI post OS install, but I end up reinstalling my OS.

Did you install Intel Matrix Storage manager? Those are the AHCI controller drivers for intel chipsets.
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[The Sauce]

I'm gonna say no...since I have no idea what that is.

 

[TJCS]

Which motherboard are you using? OS?

 

[The Sauce]

Win 7, ASUS P7P55D (P55).

Just checked the Intel website. Downloaded the lastest driver. No good. Won't let me run it.

 

[The Sauce]

PS - I guess this does not belong in the O/C forum. I thought it did but at first but it seems like a driver issue. Sry.

 

[TJCS]

I think the Intel AHCI drivers probably refuse to run because it thinks your system is still running IDE-mode. I don't really have any other recommendations I can think of atm.

However, here is another on-going thread about this topic under the storage section.

 

[The Sauce]

Well, I'll just wait until I get a SSD and then reinstall.

 

[douglasb]

I think the Intel AHCI drivers probably refuse to run because it thinks your system is still running IDE-mode. I don't really have any other recommendations I can think of atm.

However, here is another on-going thread about this topic under the storage section.

This. It's a driver issue, not anything to do regarding stability and your overclock. There is a registry hack to change from IDE to AHCI after an OS install, google it.

 

[The Sauce]

Did that. That's what caused all the trouble in the first place. After I did the registry hack I booted into windows with AHCI enabled and everthing went to hell.

 

[Absolution75]

Have you tried upping the platform voltage a tad? Considering that is where the sata controllers are, it would seem like a logical guess.

I'd just start from stock settings and try to get bac kto where you were with ACHI enabled. Hot swap is pretty boss hog.

 

[Zoomer]

Booting windows with AHCI enabled, but at stock speeds, will tell you what's the problem.