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AHCI Mode

post #1 of 7
Thread Starter 
I'm building my new PC tonight, and I want to know, what are the advantages of AHCI mode, and does it let me pop another drive in in RAID 1 without losing my data?
post #2 of 7
well if running a RAID setup every drive is running in AHCI mode. Now running an SSD in AHCI/RAID is faster than running it in IDE, so yes there can be a performance difference

edit: this assumes you aren't using a RAID card, but the onboard RAID
Edited by selectstriker2 - 3/28/11 at 3:49pm
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by selectstriker2 View Post
well if running a RAID setup every drive is running in AHCI mode. Now running an SSD in AHCI/RAID is faster than running it in IDE, so yes there can be a performance difference

edit: this assumes you aren't using a RAID card, but the onboard RAID
So if I put another drive in to use RAID 1 I wouldn't lose my data?
post #4 of 7
Well since RAID 1 is mirroring it should mirror your current drive onto your new one, assuming they are similar drives
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post #5 of 7
Quote:
Originally Posted by Mugabuga View Post
So if I put another drive in to use RAID 1 I wouldn't lose my data?
Right. The data on the other drive would just be replicated on to the second because its mirroring.
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post #6 of 7
AHCI enables TRIM support on SSD... thats about all
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post #7 of 7
Quote:
Originally Posted by ShortySmalls View Post
AHCI enables TRIM support on SSD... thats about all
I installed Win 7 on my ssd both in IDE and AHCI modes and saw a noticable difference in responsiveness with AHCI being better. Synthetic benchmarks topped the drive in IDE at around 175 mb sustained reads whereas in RAID/AHCI mode im getting ~ 235 mb.

On another note is your current drive set up as RAID 1 or would you do it when you got another drive?
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