dell poweredge 2900 server lcd module pinout for sale

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:

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):

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 remove the BBU, sounds like the error will not occur. Do you have another BBU which you can swap with the new unit. Do you have another power supply (exact same) from another server to do a swap test? I assume the BBU has been plugged in for at least 15 hours.
Yes, it has been plugged in for 2 days. They only have one server which is this one and it was only installed last weekend. By BBU do you mean UPS? They dont have any other UPSs to test but this is an old one so I may just buy them a new one.
If you have redundant power supplies in this server, shut down and reverse the power supply order. If it happens on the same PS in the other PS bay, it is an "out of spec" PS.

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.

How about trying remove all components, except these below. Power the server on with the remaining components and check if it does able to access BIOS. Then install the components 1 by 1 to check if there is any effects or component causing it.
If it doesn"t work, then try doing NVRAM clear. https://dell.to/3l7cvYB. You can refer to the link above for reference on where is the location of the NVRAM jumper.

I’m sure these contacts (psu side connectors) are gauged well for 1600w or less, but not above that. I have d2000 and z2000 dell psu varienta. I was much looking forward to the high power density this combination would offer. However, the breakout board isn’t up to the task. It quickly overheats at the psu connector. I even tried some little known tricks like adding Oxgard ( antioxidant, thermal paste and conductivity promoter), beefing up the solderments and pointing a fan at the breakout board. It still heats up well over 100c and baked the connection on the psu side.
Ms.Josey
Ms.Josey