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ASUS Support Home Location : Forum > Motherboard > P5N32-E SLI Plus  
  Topic : [Problem]AHCI, TRIM, and Intel SSD New Topic
Posts : 1
Level :
Tech Points : 1
From: United States
Posted:12/12/2009 4:25:00 PM # 1
How do I enable AHCI on my motherboard?
     I have upgraded my boot hard disk to an Intel X-25M Solid State Drive, and I run it on SATA 5 (SATA 1-4 are in RAID for my data).  I've loaded Windows 7 and installed the newest firmware which allows TRIM support to keep my SSD healthy.  I understand that for TRIM to work, I need to enable AHCI on the BIOS.
     How do I enable AHCI?  Is that the same as enabling RAID?  In the BIOS, enabling RAID is a two-step procedure, you enable RAID for all SATA, then you enable or disable RAID for each SATA.  Do I specifically need to enable RAID for SATA 5, where the boot disk is?  Or is it sufficient to enable AHCI for the SATA connections in general?
     Will I need to reload Windows 7 so that it recognizes the change?
     In short, how do I enable AHCI so that TRIM will work on my SSD?
     What about SMART?  Should I enable that?
     Thanks so much.  I have:
Intel Core 2 Duo 6600 2.4 GHz
Windows 7 Ultimate 64bit
SATA 1-4:  WD 3200KS in RAID
SATA 5:  Intel X-25 G2 80Gb SSD
SATA 6:  Blu-Ray Device

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Posts : 3
Level :
Tech Points : 3
From: Romania
Posted:6/19/2011 3:31:00 AM # 2
Hi barney,
Ever found your answer ? I am kinnda in the same situation. I wish to use TRIM in win7 and don't know how to set RAID options..

I wish:
SATA 2: 1TB WD Black
SATA 3: 500 GB Smasung
SATA 4: blu-ray wr
Don't wish any RAID arrays.
Your input would be much appreciated. Thanks

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Posts : 3
Level :
Tech Points : 3
From: Austria
Posted:7/15/2011 11:10:00 PM # 3
The ASUS P5N32-E SLI Plus Motherboard doesn't support AHCI - so there's also no option for it in the BIOS. All you can do is use the pciide MS driver instead of the nforce driver (nvstor32/64) for your SSD. The Driver, the OS (Win7) supports TRIM, sadly there's no way to test if the MB also does but using this driver I didn't notice any performance degradation of my SSD over several months. regards

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