BIOS setting: AHCI or RAID (when using SSD + 2x HDD in RAID-0)

Posted by nixdagibts on Super User See other posts from Super User or by nixdagibts
Published on 2010-12-02T13:58:01Z Indexed on 2011/01/08 13:55 UTC
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Filed under:

windows-7

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hard-drive

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ssd

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raid

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ahci

Hello there,

I want to add a new SSD and use it as system drive with Win7 x64 installed.
As driver I chose newest Intel Rapid Storage driver (not MSAHCI). I know that I have to use AHCI as BIOS setting for optimal SSD read/write performance. But I'm also using 2 normal HDDs as separate RAID-0

SSD: Win7
HDD: RAID-0
HDD: RAID-0

If I set my BIOS on my ASUS P5W DH Deluxe to AHCI, my RAID-0 cant be recognized
And If im using RAID as setting, maybe my SSD has not its top speed. But I'm not sure about that.

In short:
AHCI > no RAID-0
RAID > no optimal SSD performance (?)

Now my question: Can I use RAID as BIOS setting and be sure, that theres no decrease in SSD performance?

Google finds so many articles with similar topics and my head is just exploding. Two examples:
- set AHCI and after installing OS switch to RAID as BIOS setting... what?
- use a diskette and F6 while installing win7... really? O.o I thought those times are gone

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