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LC0g June 2, 2009 09:33 PM

SATA Controller
 
When I enable the AHCI in my BIOS, windows bluescreen on me at load up :blarg:. This is weird... I only have a SATA HDD and a SATA DVD Drive... I want to enable it to get all the more performance, because I am now on the default IDE controller. Do you guys know what is causing this?

Thanks a lot! :bananafunky:

enaberif June 2, 2009 09:44 PM

Quote:

Originally Posted by LC0g (Post 204170)
When I enable the AHCI in my BIOS, windows bluescreen on me at load up :blarg:. This is weird... I only have a SATA HDD and a SATA DVD Drive... I want to enable it to get all the more performance, because I am know on the default IDE controller. Do you guys know what is causing this?

Thanks a lot! :bananafunky:

Your not going to gain any real world performance.

And sounds like you have XP which means its a royal PITA to get it working.

MacJunky June 2, 2009 10:23 PM

Not if you have a second SATA controller on the board or in a slot that you can keep in IDE mode while the other is in AHCI.
IIRC anyway..

Squeetard June 3, 2009 07:49 AM

I read somewhere that you have to re-install windows if you change to/from ahci.

misterd June 3, 2009 08:58 AM

As MacJunky said there's workarounds, some people use the "usually" included Jmicron as an IDE Emulated SATA port and make the intel/amd ones AHCI, boot off the jmicron install the Intel matrix drivers and then swap the cable over.

zoob June 3, 2009 09:21 AM

Quote:

Originally Posted by enaberif (Post 204174)
Your not going to gain any real world performance.

And sounds like you have XP which means its a royal PITA to get it working.

I call BS on both of these statements.

Back when I ran my SATA drives in IDE mode, heavy I/O would cause my high end system (at the time) coming to a grinding halt.

We're talking 3 hard drives and 1 dvd burner, extract from A->B, burn from C->DVD, and then getting less than 1X burning speed.

Questions - SATA performance, RAID, reliability - XtremeSystems Forums
In particular, my reply on post #11.


I've successfully switched from IDE->AHCI on an XP and Vista installs using the instructions found here: HOWTO: enable AHCI mode after installing Windows - PC Perspective Forums

enaberif June 3, 2009 09:33 AM

Quote:

Originally Posted by zoob (Post 204336)
I call BS on both of these statements.

Back when I ran my SATA drives in IDE mode, heavy I/O would cause my high end system (at the time) coming to a grinding halt.

We're talking 3 hard drives and 1 dvd burner, extract from A->B, burn from C->DVD, and then getting less than 1X burning speed.

Questions - SATA performance, RAID, reliability - XtremeSystems Forums
In particular, my reply on post #11.


I've successfully switched from IDE->AHCI on an XP and Vista installs using the instructions found here: HOWTO: enable AHCI mode after installing Windows - PC Perspective Forums

That is fine I've run both tests and neither were much different from each other.

All AHCI provides is hot swapping for ESATA and usage of NCQ if your hdd has it which has been shown to be detrimental to performance not increase it.

Enabling Write Cache will give you more performance than enabling AHCI.

And funny that article you posted says the exact same thing I did. However, in the real world the performance difference isn't huge.

So.. say again whose calling bullshit?

zoob June 3, 2009 09:42 AM

First link is to address performance -- Something I saw first hand on multiple systems.

Second link is to address the XP install of AHCI drivers (switching from IDE).

enaberif June 3, 2009 09:44 AM

Quote:

Originally Posted by zoob (Post 204345)
First link is to address performance -- Something I saw first hand on multiple systems.

Second link is to address the XP install of AHCI drivers (switching from IDE).

First link is about RAID
Second link is about switching from IDE Compatibility mode to AHCI; which also says no real world performance.

Want a shovel?

zoob June 3, 2009 09:49 AM

Did you read the first link? I started that thread. You want a shovel too? :P


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