I used 5017A-EF (X9SBAA-F) with 1.35V memory, but he got 1.55V in VDIMM in both bios and IPMI sensor reading.
Do you have idea where the problem comes from?
Please change BIOS option -> Chipset Configuration>>North Bridge Chipset Configuration>>”DDR Low Voltage” = [Enabled]
BIOS v1.0 only support memory speed 1066MHz with V1.35, BIOS will force the DIMM to 1.5V if memory speed is 1333 or 1600.
We will release V1.0a BIOS which support DIMM 1333MHz with 1.35V.