Dell Mobile Precision M4500 setup questions

I just got a new M4500 with a Samsung PM800 64GB SSD and a Toshiba 7200RPM storage drive. Both of these drives are set to non-RAID. I noticed when I went into the BIOS that it was set to RAID On instead of AHCI, even though there is no RAID setup between the two drives.

I ran the CrystalDiskUtility and the most it eeks out is at 94%. The built in Performance Utility in Windows 7 currently measures at 6.7

I was told an SSD should equal out to close to 100% and at least 7.0 as benchmarks if I want to utilize all the performance it offers. Is this the best that it can do?

Any info would be most appreciated. Thanks.

RAID On is the default SATA controller setting in some BIOS, even with one HD,.

Try AHCI first for install.

SSD Alignment
SSD Tweaks and Optimizations in Windows 7

gregrocker said:

RAID On is the default SATA controller setting in some BIOS, even with one HD,.

Try AHCI first for install.

That would mean a fresh install since loading AHCI drivers after Windows 7 is installed can be pretty unstable.

No need to change it until you're ready to reinstall. AHCI only enables hot-swapping.

If there is some other reason you need AHCI: AHCI : Enable in Windows 7 / Vista

Bare Foot Kid said:

It's not at all unstable, using the tutorial posted at the link above.

Well wait a minute, what about this?

AHCI and SSD's

What setting do have in BIOS?

Bare Foot Kid said:

Geez, that POS thread is a year and a half old from the sorriest forum on the net.

You mean none of that is true?

Why not?

theog said:

What setting do have in BIOS?

Currently it's set to "RAID ON"