Cannot Boot in AHCI mode

wilde · 11 May 2012 at 16:18

>Ah! Could this be trying to load both the Intel and the Microsoft AHCI driver, therefore not knowing which to pick?

That is a known problem. Both intel and microsoft acknowledge this. I was only looking at this a few weeks ago on the Microsoft support site and on the intel site

I have just very very quickly found something related which is this
http://social.technet.microsoft.com...l/thread/b5cf685c-9d1d-421d-b19f-3407834e8e4a

but the main point I am making is that I believe the problem is one you can solve without a hardware swap. Sounds like some kind of conflict to me
some good googling would get you running

An issue with AHCI is that if you install the OS without enabling AHCI in the BIOS, enabling it after installation will render your OS unusable. This is because Windows disable the AHCI driver since it is not needed during the installation.

platypus · 11 May 2012 at 16:34

Well, good news. I have managed to load the intel AHCI driver and get the install going. So fingers crossed I can get it working this time!

platypus · 11 May 2012 at 16:51

Yey. Here I am with a full AHCI install up and running. Phew

.

Appreciate everyones help!

anjs · 11 May 2012 at 16:56

not a problem

The Deuce · 11 May 2012 at 17:27

how did you eventually get round it Platy?

platypus · 11 May 2012 at 20:10

Well I don't know if its any use to anyone but:

-Disconnected everything so I could get the thing to boot!
-Set AHCI mode on in the Bios
-Reconnected just my SSD
-Installed the Intel (F6) drivers during W7 setup
-Installed Intel RST drivers once in Windows
-Shutdown and reconnected my sata hdd.
-Rebooted and crossed my fingers...

Bit of a bloody mess about but got there in the end!

The Deuce · 11 May 2012 at 20:35

cheers, I've never had to install 3rd party drivers on a windows installation on any of my ssd's :O

anjs · 11 May 2012 at 21:21

I good tip is to only have the the SSD and DVD conected when installing windows. You can run into the problem that the master boot record can be write to another drive if anything else is connected.

Tediore · 11 May 2012 at 22:22

Glad to hear you got this sorted

craarc · 12 May 2012 at 01:22

how many op systems are u using ?

i can do it with one but not with multiple systems on multiple drives

so i have to keep the ssd in ide mode on multi boot and its actually faster like that

platypus · 12 May 2012 at 08:47

The Deuce said:
cheers, I've never had to install 3rd party drivers on a windows installation on any of my ssd's :O

Same here, this is the first time for me

.

craarc said:
how many op systems are u using ?

Just windows 7 on this PC.

feck199 · 12 May 2012 at 12:49

It's not always a case of it not working, many ssd's often with the MS ahci driver, but that doesn't mean its the right choice. So for anyone that's been running windows with their default ahci drivers. You should really use your motherboards ahci driver.

Example one of the gigabyte z77 boards. Windows installs all the way until just after the second reboot then falls over. Turns out it was the ms ahci driver not been compatible with all the options the motherboard offering it. Eg hotplug.