dell poweredge 2900 server lcd module pinout brands

Could someone with a working 2900 do me a favour and grab a multimeter and get some voltage readings from the PDB or the Backplane? Specifically I need the voltages for the BKPLN connector (top left in this image):

The next least intrusive thing to do would be a power drain, which would just involve pulling the power cords and then holding the power button for 30 seconds. This will force the BMC/iDRAC to restart. If you still have problems after that, testing the system at the minimum to POST would be the next thing I do. The following components are considered the minimum to POST for this server:

If you can, could you remove any of the system fan and swap to the issue slot to check if it"s the slot issue or fan issue? I glanced through the parts database, and only found DPN# C9857 for PE2900 fan only.