dell poweredge 2900 server lcd module pinout pricelist

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:

As for the PSUs, if you"re not seeing amber, they should be OK. I would take the server to the minimum to POST configuration and check to see if you get a change in behavior. If you do, you can add one component in at a time to help identify the fault. If there"s no change, then the issue would likely be with one of the components required for POST.

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.