To debug the issue please count the series of beep codes that the system is giving during POST. If the beep code sequence is 1-5-4-4 the issue is related to power. You can also test the board without memory installed and should receive three regular beep codes, if not there is a chance the node is defective.
I installed just 1 CPU in slot 0, no memory. Now, I am getting the beep sequence "1 5 4 2". The board is completely quiet. It does not come up. Same result with 1 memory module installed.
Test the compute node on a different slot on the chassis and also test one power supply at the time to narrow this issue.
Yeah, I did test using different slots and got identical results: 1-5-4-2
It takes a while before the beep comes up and long still for the power supply fan to revv up. Also tested with just this particular compute node plugged in. The other compute node works just fine.
I wonder if it is the node, the chassis, or the power supply?
1-5-4-2 looks to be a power supply issue, probably to the board as the power unit seems to work fine, powering another compute node.
I tried yet a different node and got a 1-3-4 or a 1-2-4
Anyone with a pointer to where I can find the beep code?
The following PDF does not list the full set of beep codes...