i use a GA-X58A-UD5 but i think problem is with all GigaByte motherboards
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after plugin a pci-e RR622 card all is normal , very fine , Raid 0, 1 , 5, 10 with my 2 * external enclosures with 4 * disks ( total 8 * disks ) with port multiplier ...
but if connect no disk to the HighPoint card exist a solution to abort bios ( if not HighPoint bios run for search disks some 30 seconds !! )
--> key for this is 'END'
but GigaByte motherboard use also the same key ' END ' for QFlash and after key 'END' to abort HighPoint BIOS .. computer start QFlash and
reboot
i have contacted HighPoint to modify the firmware and use a new key as 'H' or add a second option key, but HighPoint response is : we use theis key a long time !!
i think that if i contact GigaByte i have alos the same response : we use this key END a long time
and we turn in round !! that is not me that is the other !!
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i have found a solution : i have hacked the HighPoint after replace END by H but ....
all the best
Pierre