ASR5805 RAID 8x PCIexpress question


Overclocked Like A Mother
Hi all,

I have an Adaptec ASR5805 RAID card. It has an 8x PCIe interface. I plugged it into my 16x PCIe slot on my motherboard and it won't post. Motherboard posts once I remove the card. (Intel DX38BT motherboard)

My question is: Can't I use a 16x slot with my 8x card, or do I have to find a mobo with a 8x slot?

I cannot find a HCL for this RAID card on the Adaptec site.



American Zombie

Staff member
Political User
Do you have a vid card in a 16x slot?

Some boards drop the 16x slots down to 8x when two cards are detected.

Could try the black 16x slot if using the blue as it is 1.0 spec.


Overclocked Like A Mother
Yes I do need a vid card on primary 16x slot. No onboard vid card on the mobo.

What should I do then? Move the vid card down?


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