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Asus P5Q Pro & Adaptec 5805 Raid Controller

Last response: in Motherboards
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March 18, 2009 10:12:13 AM

Hello,

I have a Asus P5Q Pro Mainboard and want to extend my system with a Adaptec 5805 RAID Controller. My board has 2 PCIe x16 slots and the RAID controller will need a PCIe x8 slot. My graphic card is a Sapphire X1950Pro which is in one of the 2 x16 slots. I know, that the board will slow down the both x16 slots to 8 lanes in CrossFire mode. I've no problem when the relativly weak X1950 runs only with 8 lanes. The question is: will the RAID Controller work in the 2nd x16 slot (with 8 lanes) or are both slots for graphic cards only?
This diagram of the P45 says, that both are for graphics. I'm really unsure because i thought, PCIe is for every device.

Please help because i don't want to buy this expensive RAID controller and can't use it.
Thanks in advance!

Best regards
March 18, 2009 11:06:11 AM

Thanks for your answer. I've found this post but wasn't sure if this applies to the P5Q Pro too because the board in the other thread is a X48 chipset and the P5Q Pro has an P45. I just want to clarify all things before i purchase the controller.
Has anyone such a combination?
!