SUBSIM Radio Room Forums - View Single Post - A minor problem PC won't shut down its power in AHCI mode

CaptainHaplo · 04-20-09, 06:24 AM

Let me guess... this is a DELL isn't it? If so, any problems booting in AHCI mode?

Sounds like your HD controller has an incompatibility with the mode. Vista may support it, but I have run into Dells specifically where it was a BIOS option that caused all kinds of issues from boot forward.

I would look to see if there is an updated firmware for the controller (though some are not flashable).

Worst case, stay with what works. Your not really gaining alot in reality making the switch.

Also - I seem to recall hearing you have to install in AHCI mode (the OS) for it to work right, so making the switch may be the problem as well. Not sure on that one though.

04-20-09, 06:24 AM	#2
CaptainHaplo Silent Hunter Join Date: Apr 2007 Posts: 4,404 Downloads: 29 Uploads: 0	Let me guess... this is a DELL isn't it? If so, any problems booting in AHCI mode? Sounds like your HD controller has an incompatibility with the mode. Vista may support it, but I have run into Dells specifically where it was a BIOS option that caused all kinds of issues from boot forward. I would look to see if there is an updated firmware for the controller (though some are not flashable). Worst case, stay with what works. Your not really gaining alot in reality making the switch. Also - I seem to recall hearing you have to install in AHCI mode (the OS) for it to work right, so making the switch may be the problem as well. Not sure on that one though. __________________ Good Hunting! Captain Haplo