Try this tool: Troubleshooting server system boot issues
You may also try to move the BIOS select jumper at J3H1 to pins 1-2.
If none of above resolves you issue, you may want to replace components: board, CPU, memory.
OK. what i understand is you are not able to boot the machine(not even post).
Ensure the compatiblity lists for S5000PALR
http://ark.intel.com/Product.aspx?id=46540 ( check for mem,powersupply, chassis and etc..)
In addition to that, follow the steps.
1. Make sure you have populated the CPU in slot1
2. Remove the memory and boot without memory and ensure you can hear beep codes.
3. IF step 2 is pass, then boot the machine in BMC force update mode. [clear the cmos aswell]
let me know the status,
Thanks to Edward Zhao, Dan_O and Kamal for their helpful answers. Removing the memory did not result in any beep codes. Board is new (2nd one), memory was pulled from a working S5000PSL server. This leaves the processor and perhaps the mini control panel. Why do I say that? I can power up using the mini control panel power button BUT the control panel power light does NOT come on AND I can't power down using the control panel power button - I have to unplug the power supply...anyone ever heard of this behavior?
Unfortunately, I'm back. In spite of receiving and following several useful tips from community members, the board STILL won't post. See threads for prior tips. The "missing link" seems to be lack of ANY post code diagnostic LEDs. I should see at least one red LED during the power-on initialization of the host processor, yes? I'm tempted to say that the board is not getting any power, even though the +5vsb and status LEDs on the board are lit green. I've pulled out ALL my hair over this one...
Any help on this one??