GA-P35-DS3L - AHCI

Geffen

Geffen

Geffen

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Joined
28 Dec 2002
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I've just brought a GA-P35-DS3L motherboard and have sucessfully got windows installed on it. Looking at the bios now i noticed their is a SATA AHCI Mode which is meant which i've been trying to use but each time i turn it on my PC can't detect the drive any more. Does anyone know a way round this or is that some SATA drives can't use AHCI mode?
 
Is it detected in the BIOS?

You can't enable AHCI after installing Windows. It has to be done before installing Windows, and you need to load the RAID drivers too.
 
Cob said:
You can't enable AHCI after installing Windows. It has to be done before installing Windows, and you need to load the RAID drivers too.
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I wish i had known that before installed it. Do you know if there is much performance gains for someone using the PC for general useage (games, internet, Photo and video edditing)
 
There are actually performance gains as AHCI enables NCQ - without AHCI the drive operates in IDE mode, therefore no NCQ support. Whether you'll notice the difference in performance in reality (benchmarks show an increase but that's no use) is another story but the fact remains, if you want the best from your PC you should have AHCI enabled.
 
WJA96 said:
If I was you I'd turn it on. It makes you fold faster. Honestly - it does.
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I'm folding on a pair of Raptors in RAID0, dude ;)

Well actually I'm not atm. My Q6600 went to France ( :( ), the Celly 420 was a non-starter as far as folding was concerned, and I'm now testing a E2140 to see how far it can go. So folding has taken a back seat for a couple of weeks.
 
Cob said:
I'm folding on a pair of Raptors in RAID0, dude ;)

Well actually I'm not atm. My Q6600 went to France ( :( ), the Celly 420 was a non-starter as far as folding was concerned, and I'm now testing a E2140 to see how far it can go. So folding has taken a back seat for a couple of weeks.
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Ah - well then depending on which Raptors you have AHCI won't work anyway. I have no idea why it 's faster but on Vista 64-bit with AHCI turned on I get an extra 200ppd on my Q6600's.
 
I've a nice mix of 8mb and 16mb 36gb ones. So one with AHCI and one without it (I think).
 
Cob said:
I've a nice mix of 8mb and 16mb 36gb ones. So one with AHCI and one without it (I think).
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Yep - that's probably why you're seeing no performance benefit. If there's ever a been disk that benefits from NCQ it's a 16Mb Raptor doing folding in Norn' Iron;).
 
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