AHCI needed for TRIM?

PARUK

PARUK

PARUK

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18 Oct 2002
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Ayrshire, Scotland
As per the title, is it true that you need to be using AHCI for SATA mode in order to let Win 7 make use of TRIM?
 
I just tried enabling AHCI on my motherboard (Asus Rampage II Extreme Intel X58 Motherboard running i7 920 D0 Stepping. Boot HD is an Intel X25-M 160GB SATA-II SSD.

When I enabled it, on the Windows 7 boot animation it bluescreened for a spit second then restarted. :(:confused:

So I guess since I installed Windows 7 in IDE mode then I'm out of luck :(

I wonder if there is actually a noticeable performance increase?
 
Festisio said:
I just tried enabling AHCI on my motherboard (Asus Rampage II Extreme Intel X58 Motherboard running i7 920 D0 Stepping. Boot HD is an Intel X25-M 160GB SATA-II SSD.

When I enabled it, on the Windows 7 boot animation it bluescreened for a spit second then restarted. :(:confused:

So I guess since I installed Windows 7 in IDE mode then I'm out of luck :(

I wonder if there is actually a noticeable performance increase?
Click to expand...

You need to change a registry setting.

http://support.microsoft.com/kb/922976
 
PARUK said:
Yep I've done the same, and I seemed to get marginally faster scores with AS SSD after switching over from IDE. But I still wonder if it was really necessary in order to get TRIM?
Click to expand...

I'm fairly sure that Wiper et al run fine on drives in IDE mode, so there's nothing technical preventing it and so If you're running with the default driver it should be working in Win7.
 
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