Disabling AHCI BSOD

[jharris1993]

I found a way that works for me - admittedly this is on a Win7 64 bit system, but since the information might be applicable, I decided to post.

There are actually TWO entries in question:

• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\msahci
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\pciide

When using IDE:

• msahcii's START is set to "3"
• pciide's START is set to "0"

When using ACHI:

• msahci's START is set to "0"
• pciide's START is set to "3"

Apparently when you set the msahci START value to "0", the pciide START value gets automagically modified too.

What I did in my case was to set both values to the corresponding value for the interface I want to use - and I was golden.

What say ye?

Jim