Motherboard without AHCI - Use RAID instead?

Jul 24, 2014
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I sold my friend my old EVGA 790i Ultra motherboard which is LGA 775. He wants to get a solid state drive but the board does not (yes, I've checked a million times) have AHCI mode, and therefore does not let the SSD reach its full potential. I ran into this problem myself when I was still using the mobo and bought my OCZ Vertex 4 SSD. I didn't want to reformat so I ended up just dealing with the drive being under the IDE controller.

Can I run a single SSD under the RAID controller in order to get the full speed of the SSD over SATA?

Thanks,

Acid
 

cbn

Lifer
Mar 27, 2009
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Yes, it should work.

AHCI is subset of RAID, or another way of looking at it is that RAID is a superset of AHCI.
 
Jul 24, 2014
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Any idea how that would work? I've never actually used RAID for anything before. I remember glancing at it years ago and going "nope, I don't need this".
 

zir_blazer

Golden Member
Jun 6, 2013
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Yes, it should work.

AHCI is subset of RAID, or another way of looking at it is that RAID is a superset of AHCI.
Not necessarily true. I recall RAID support in pre-AHCI Motherboards, or even for PATA ports, which can't be AHCI at all. It seems that at some point RAID was implemented totally different than the current RAID mode that its implemented on top of AHCI.

You may want to google around, there are some info about people with EVGA nForce Motherboards.
 
Jul 24, 2014
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Thanks for the link, zir_blazer. I searched for something like that but I guess I didn't use the right combination of keywords.

If I'm reading the OP in that link correctly, using an SSD on the JMicron controller SATA port (and enabling the JMicron controller in the BIOS) will allow for TRIM and decent performance.

I read elsewhere that the RAID controller on this old board won't support TRIM, meaning I probably wouldn't want to run the drive under the RAID controller anyway. It also looks like another user IS running an SSD under the RAID controller (he says "RAID Stripe, what does that mean?) Any thoughts?
 
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Deders

Platinum Member
Oct 14, 2012
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Usually the Jmicron ports have worse performance all round compared to Intel ports, so it might be better to use the Nvidia ports and manually trim every few days or so.
 
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VirtualLarry

No Lifer
Aug 25, 2001
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Usually the Jmicron ports have worse performance all round compared to Intel ports, so it might be better to use the Intel and manually trim every few days or so.

Intel ports... on an Nvidia-chipset mobo?