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Going from IDE to AHCI, having issues

post #1 of 4
Thread Starter 
I have just a basic knowledge of computing, so keep that in mind. My system is Windows 7 Ultimate, motherboard is Gigabyte GA-MA790XT-UD4P, SSD is Vertex 2. When I installed my SSD on my desktop, I did not set it to AHCI in BIOS(it is IDE by default), rather I had it set to IDE. Come to find out, it's supposed to be in AHCI mode during installation of the OS.

What I then did to change it to AHCI was go to this link http://support.microsoft.com/kb/922976 and ran the fix. Then, I changed the mode to AHCI in BIOS, rebooted and it installed the drivers. Now, everything seems to be working fine, but I noticed my bootup time has increased by about 15 or so seconds, and it's an SSD... so that means it's basically doubled the time where it takes to start. AHCI should increase performance, not decrease, right? Am I doing something wrong here? Should I do a complete new install of Windows 7?

Also, I have 4 separate hard drives, and it's also showing all 4 of them under "Safely Remove Hardware and Eject Media". It gives me the option to eject all 4 hard drives under this. Is this normal? I've never set hard drives to ACHI before, so maybe it's normal, but it seems weird to me. It seems like only an external hard drive should be listed here.
post #2 of 4
If you don't have a problem doing that, perform a windows clean install with AHCI. AHCI supposedly improves performance, but it is nothing spectacular. Your hard drives shouldn't be listed as ejectable, although there is no harm on it, except for the fact that you can eject that drive/partition by mistake and need to reboot to mount it again.
You could set AHCI mode and then try to repair windows through the bootable cd, where it would ask you to define the proper driver to access the windows partition properly, as an aleternative to the Microsoft's fix, but this don't work flawlessly though

If you can reinstall.
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I need upgrades
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by matroska View Post
If you don't have a problem doing that, perform a windows clean install with AHCI. AHCI supposedly improves performance, but it is nothing spectacular. Your hard drives shouldn't be listed as ejectable, although there is no harm on it, except for the fact that you can eject that drive/partition by mistake and need to reboot to mount it again.
You could set AHCI mode and then try to repair windows through the bootable cd, where it would ask you to define the proper driver to access the windows partition properly, as an aleternative to the Microsoft's fix, but this don't work flawlessly though

If you can reinstall.
Thanks for the response, do you know if TRIM will be working properly now, or do I have to reinstall for it to work properly with AHCI? Moreover, what would the benefits be of doing a clean install that I'm not seeing now? I would just do it, except it's a major inconvenience.
post #4 of 4
I am not sure about this, but I think that TRIM only works with AHCI, so it is working now, and before it wasn't. If the clean install is an inconvenience don't do it. A clean install would remove all those registry keys and unnecessary files that may be "confusing" windows, so to speak. If you keep your windows like this you probably won't notice less performance on the drive, except the boot up time, cause probably it won't cause any performance decrease. If your windows takes about 30-45 secondes to start it still is a very short time.

If you have an hour or so to test a few things, and want to amuse yourself a little experimenting, create a ghost image of your SSD partition, with norton ghost or a similar software and reinstall windows on your SSD and see the differences, if any. If you don't see any differences, or any relevant ones, you can restore the ghost image of the partition to your SSD drive again, just as it was before you performed the shutdown command
I need upgrades
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Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
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Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
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I need upgrades
(21 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Foxconn A79A-S PNY GTS450 XLR8 KVR800D2N6/2G 
Hard DriveHard DriveHard DriveHard Drive
WD2500AAKS WD3200AAKS WD10EARS WD3200JB 
Optical DriveOptical DriveCoolingOS
Asus DRW-1608P2 Asus DRW-1608P2 Corsair H70 Ubuntu Server 10.10 x64 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 ASUS VW193S Logitech EX100 LC-Power 650W 
CaseMouseAudioAudio
Coolermaster Stacker 830 SE Logitech EX100 Creative Audigy 2 ZS Creative i-Trigue L3450 
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