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Windows 7: Dell Mobile Precision M4500 setup questions

30 Jan 2011   #11

Windows 7 Professional x64

Quote   Quote: Originally Posted by Bare Foot Kid View Post
I've been running AHCI on an SSD for longer than that thread was first posted and have never had an issue of any kind; always remember, a single thread/post does not an issue make.
Yeah but did you set the BIOS to AHCI first and then do a clean install from scratch?

Or did you load the AHCI drivers on after Windows 7 was already installed?

Even the tech I talked to at Dell wasn't sure if it would be stable the second way.

My System SpecsSystem Spec
30 Jan 2011   #12
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

Evidentially since I wrote this tutorial about 6 months after I got the SSD and had to enable AHCI after the installation of Windows 7 and Vista (several times) to get the screen-shots used in the tutorial, I've had experience with it both ways.

AHCI : Enable in Windows 7 / Vista

But suite yourself, I've said all I'm going to on this subject.

Look at the Intel in this snip from the tutorial

My System SpecsSystem Spec
30 Jan 2011   #13

Windows 7 Professional x64

Well this is interesting. I just read the following from Dave76...

Quote   Quote: Originally Posted by Dave76 View Post
The answer is NO, you do not have to be in/using RAID for AHCI to work.
AHCI is a separate function from RAID, actually selecting RAID will put the computer in AHCI mode.

Your choices in BIOS are IDE, AHCI or RAID mode.
When you set your computer to RAID (normally the third option in your BIOS) it will set it to AHCI mode.
You can set your computer to RAID (which uses AHCI mode) and not have any HDDs set up in RAID configuration. You will have the advantages of AHCI when in the RAID setting.
Well if this is correct, then I'm already in AHCI mode, even though the BIOS says "RAID ON".

Quote   Quote: Originally Posted by Dave76 View Post
The main benefits of AHCI are your HDDs can be HotSwappable (plug and play and unplug, without shutting down the computer), NQR (native command queuing, this allows your HDD to run more efficiently), allows the use of S.M.A.R.T. the HDD monitoring software.
S.M.A.R.T is already enabled on my machine. So is NQR. The implication being that these two features won't run without it being run in AHCI in the first place. Yes? No?

Quote   Quote: Originally Posted by Dave76 View Post
Also required for SSDs to use Trim function.
Again, TRIM is also already enabled. I thought TRIM could also work under IDE?
My System SpecsSystem Spec

30 Jan 2011   #14

Microsoft Community Contributor Award Recipient


1) A BIOS set to ATA will handle IDE mode only.
2) A BIOS set to SATA will handle SATA mode only.
3) A BIOS set to Raid On will handle SATA mode & RAID mode, But not IDE mode.

Therefore leave your BIOS set to default Raid On.
My System SpecsSystem Spec

 Dell Mobile Precision M4500 setup questions

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