PCIe-8x usage on ASUS SLI boards

[O. Hartmann]

Hello.
My question may be a little bit cranky, but having low cost server in
mind it may be of relevance.

Is it possible to use the second 8x SLI slot on ASUS A8n-SLI
Deluxe/Premium as a normal PCIe-8x slot with SLI enabled?

Server systems do not utilize high graphics throughput, so I can live
with a PEG card in 8x mode. But it would be fine if I could use a
8x-lane SATA-II or SCSI RAID card in the second PEG slot with 8x-lane
support.

Thanks in advance,
Oliver