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Windows 7: AHCI : Enable in Windows 7 / Vista

31 Jan 2011   #320
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

It's ok mate, thanks for the info.


My System SpecsSystem Spec
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13 Feb 2011   #321
unifex

Windows 7 Ultimate (x64)
 
 

Well, after reading most of this thread it seems to me my problem is still not resolved, please correct me if I missed it.

Basically, the tutorial procedures did not work for me.

Now, I have the Dell Inspiron 530 with G33M03 motherboard (Q6600 with 8 GB RAM). The Dell BIOS does not have an AHCI mode, just IDE and RAID. Basically there are no other options at all (on the side note I was reading something about "unlocking" ro "modding" the BIOS but I am not sure I am ready for this).

I wated to enable AHCI since I got a new SSD and wanted to have TRIM, etc. So, after a bit of reading, it turned out there is AHCI support (with ICH9R Intel controller) and it's in the RAID mode. I turned on the RAID and installed Windows 7 on my SSD, it's working fine, but there are the following issues:

1. I kept my old OSs (on other hard drives I still had the original Vista that came with the Dell and the Windows 7 I was using since it came out, both are on their separate hard drives). These were isntalled in the IDE mode, I did not try the RAID setting before. Thus, to boot the old OSs - and I am still customizing my new set up, so the work is still being done on my "old" Windows 7 - I need to change the BIOS setting back to IDE. Not a big problem, but I would prefer the computer to start up without my pressing lots of buttons.

2. Most annoying - after repeated changes from IDE to RAID and back, the computer now has difficulties recognizing the SSD as a bootable device. What I mean is that once iI change to RAID - or start up the PC in RAID mode in the morning (the PC is off when I don't use it) - I will get the screen saying that AHCI BIOS is installed, it identifies the drives, then pauses and then sees only the HDDs as bootable. I have to restart three times before it will recognise the SSD as bootable (it sees that SSD is connected to SATA 0 port from the start). Now that's rather annoying.

What I tried to do, I tried to use the tutorial to enable AHCI in the old Windows 7 and Vista, in order to avoid this switching abck and forth between IDE and RAID. I set the registry value as described , but then switching to RAID and booting just doesn ot work, the computer simply does not boot, so I never get to see those screens where it installs the drivers. Moreover, pressing F8 does not work - the machine just reboots without getting to the screen where I could choose the safe mode, etc.

To be honest, I am not sure where to go from here. Thought I would share this.
My System SpecsSystem Spec
13 Feb 2011   #322
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello.



Sorry to see you're having issues but I'm not sure how to assist you, others more hardware knowable than I watch this thread so perhaps they'll have some ideas for you.


Hopefully you created restore points in all the OSs before you started this and you can boot to WinRE to use Method Two of this tutorial at the link below to do system restore to a point before all this, then you would just have to set the BIOS back to what it was to start with and all should be fine.

How to Do a System Restore in Windows
My System SpecsSystem Spec
14 Feb 2011   #323
belikexp

Windows 7 x64
 
 

Quote   Quote: Originally Posted by unifex View Post
Well, after reading most of this thread it seems to me my problem is still not resolved, please correct me if I missed it.

Basically, the tutorial procedures did not work for me.

Now, I have the Dell Inspiron 530 with G33M03 motherboard (Q6600 with 8 GB RAM). The Dell BIOS does not have an AHCI mode, just IDE and RAID. Basically there are no other options at all (on the side note I was reading something about "unlocking" ro "modding" the BIOS but I am not sure I am ready for this).

I wated to enable AHCI since I got a new SSD and wanted to have TRIM, etc. So, after a bit of reading, it turned out there is AHCI support (with ICH9R Intel controller) and it's in the RAID mode. I turned on the RAID and installed Windows 7 on my SSD, it's working fine, but there are the following issues:

1. I kept my old OSs (on other hard drives I still had the original Vista that came with the Dell and the Windows 7 I was using since it came out, both are on their separate hard drives). These were isntalled in the IDE mode, I did not try the RAID setting before. Thus, to boot the old OSs - and I am still customizing my new set up, so the work is still being done on my "old" Windows 7 - I need to change the BIOS setting back to IDE. Not a big problem, but I would prefer the computer to start up without my pressing lots of buttons.

2. Most annoying - after repeated changes from IDE to RAID and back, the computer now has difficulties recognizing the SSD as a bootable device. What I mean is that once iI change to RAID - or start up the PC in RAID mode in the morning (the PC is off when I don't use it) - I will get the screen saying that AHCI BIOS is installed, it identifies the drives, then pauses and then sees only the HDDs as bootable. I have to restart three times before it will recognise the SSD as bootable (it sees that SSD is connected to SATA 0 port from the start). Now that's rather annoying.

What I tried to do, I tried to use the tutorial to enable AHCI in the old Windows 7 and Vista, in order to avoid this switching abck and forth between IDE and RAID. I set the registry value as described , but then switching to RAID and booting just doesn ot work, the computer simply does not boot, so I never get to see those screens where it installs the drivers. Moreover, pressing F8 does not work - the machine just reboots without getting to the screen where I could choose the safe mode, etc.

To be honest, I am not sure where to go from here. Thought I would share this.

Try here Inspiron 530S - "AHCI BIOS not installed" - error came out of nowhere. - Desktop General Hardware Forum - Desktop - Dell Community "Inspiron 530S - "AHCI BIOS not installed"

Others are having a similar problem with the Inspiron 530S. You should try the Dell chat rooms.
My System SpecsSystem Spec
.

15 Feb 2011   #324
unifex

Windows 7 Ultimate (x64)
 
 

Thanks, Belikexp, but this is not my problem. First of all, I've got 530 (no "s"), second, AHCI BIOS is installed and is working - it's just that it boots from the SSD on the third attempt for some reason, while seeing the disk every time. I did try Dell forums of course - to no avail, I'm afraid.
My System SpecsSystem Spec
29 Mar 2011   #325
carolinabranden

Windows 7 Home Premium 64-bit (Retail)
 
 

I tried your tutorial and no success. My regedit was already set to 0, but it refuses to boot into Windows whatsoever. I'll get a black screen with a white dash after changing my bios to AHCI. When I change it back to IDE, it'll boot right into Windows like nothing ever happened. What am I doing wrong here? Am I supposed to wait? It looked to me like it was stuck on that screen.


System Specs
My System SpecsSystem Spec
29 Mar 2011   #326
madrus

Windows 7 Pro 64bit
 
 
Magnificent tip!

Thanks a lot for this wonderful tip. It was killing me to have non-raid disks being controlled by the raid bios. You have shown me the way how to make ahci bios work. And it does!
My System SpecsSystem Spec
31 Mar 2011   #327
carolinabranden

Windows 7 Home Premium 64-bit (Retail)
 
 

Quote   Quote: Originally Posted by carolinabranden
I tried your tutorial and no success. My regedit was already set to 0, but it refuses to boot into Windows whatsoever. I'll get a black screen with a white dash after changing my bios to AHCI. When I change it back to IDE, it'll boot right into Windows like nothing ever happened. What am I doing wrong here? Am I supposed to wait? It looked to me like it was stuck on that screen.


System Specs
Problem solved. I've been off this computer for a couple of days. It asked me if I wanted to boot off my system disc.!!! My boot priority settings. Went in to find the external drive was somehow set as the first. I'm not sure how it got there because it was 1. ROM 2. Flash 3. HDD... etc... before. Why didn't I check that before? lol Something so simple can cause such a hardache.
My System SpecsSystem Spec
31 Mar 2011   #328
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Hello carolinabranden, welcome to Seven Forums!


It seems the simple things can be the biggest issue, good to see you got it sorted and thanks for posting back.
My System SpecsSystem Spec
24 May 2011   #329
plumpkatt1

Win 7 Pro 64-bit and Ultimate 64-bit
 
 
Worked Great

Well thanx a bunch. I forgot to switch the bios when I installed Win 7 Ultimate 64bit and tried this tut and it went smooth. And to think I was about to reinstall this system I just finished reinstalling. If it had just been the OS it wouldnt had been that big of deal but I already installed most of the software when I realized I forgot to enable AHCI in bios......

Well the WEI score didnt improve for me but this is how my benchmark test went. I took a 500MB folder and pulled it accross my network and to monitor speed I opened task manager on the XP PC that stored the 500MB folder. I click the Network tab and watch the Utilization graph. When the Win 7 laptop was in IDE mode the task manager on the XP machine would say I was utilizing only at 40%-55% out of the 100Mb network. Once I switched the laptop to ACHI mode and transfered the same 500MB folder from the XP machine to the Win 7 Laptop the Task Manager was showing me at a steady 99% and the data transfered in half the time.........Havent really had the chance to check out how much improvement there is or isnt in boot up speeds but these results speak for themselves....

BTW this was a Toshiba L455D laptop with a Toshiba HD(not sure of specs).

For those who say AHCI isnt that much of a gain over IDE, there must be other issues/factors in play. I was able to pretty much double my transfer speeds....It was an Eco version of a Samsung HD in the XP machine. I think it was a HD103SI running at 5400 RPM.
My System SpecsSystem Spec
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 AHCI : Enable in Windows 7 / Vista




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