Model: X8DTT-IBQF
Serial Number: OM15S38362
PCB Revision: 2.00
Question or Comment:
What riser card do I use with this motherboard for use in a CSE-827H-R1400B motherboard drawer to take advantage of the PCI-E x16 gen 2 slot?
I have a number of RSC-R1UT-E16's but they don't work in the left 2 drawers (they're backwards) and less importantly they don't fit with the riser card adaptors shipped with the chassis (Screw holes don't line up.)
You can't use this riser.
You can see:
http://www.supermicro.com/products/system/2U/6026/SYS-6026TT-BIBQF.cfm
which is same as your configuration. You can use riser:
Riser Card RSC-R1U-E16R 4 RSC-R1U-E16R