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For HighPoint card ( RR620 ) i have no problem ( similar Gigabyte BIOS in my motherboard GA-X58A-UD5 )
Exist a little utilility for programming HighPoint BIOS parameters for resolve compatibility
You can found utility with Firmware upgrade ( run load.exe /C ) for the RR640 to :
http://www.support-highpoint-tech.com/Main/rr64x/bios/rr640-bios-v1.0-100107.zip
I think that you can test the option : disabling Reallocate EBDA in the HPT BIOS
Pierre
Thanks, this worked perfectly!
It's really too bad about this card only having 2 Marvell controllers, especially for $200!
You can only use 2 SSD's on it, one on each controller, otherwise it suffers the same problems that motherboards with one controller do.
I tried using 3 SSD's and scores drop under the performance of two, and I know if you use both ports on one controller(IE 1+2 or 3+4) it's terrible like onboard too.
Ohh well, I didn't have to pay for it so I can't complain to much, but I do feel bad for those who buy this intending to RAID 0 with more than 2 SSD's.
Do you by any chance have the PLX Bridge chip driver (Base System Device), it's missing in windows 7 and is not on the CD or site. My contact who supplied me with the card, also has asked them directly a few times for the driver and has not had any luck getting one.