I have a brand new Intel DP43BF that I am building a PC with. When I turn it on it powers on for 4 seconds, then shuts off then powers back on and stays on with no Power/HDD LED or Keyboard lights. The fans are the only things that run. There are no beeps or post screens to read.
My setup is
Intel Core 2 Duo E6750
Kingston KTL-TCM58/2G(4) 2GB memory sticks
BFG 650 Watt power supply
Nvidia GeForce 7900 GTX
Things I have tried so far (in order of what was removed):
Unplugged everything from the power supply except for the motherboard
Only used 1 2GB stick of ram.
Took out the video card
All of the things I have tried have had the same results.
The only thing I can think that it could be is a bad CPU? The CPU, GPU, and power supply are used. The power supply and GPU were working when i removed them from the other PC. The CPU was pulled from a mobo with bad caps.
Was the system assembled using ESD precautions? Has the graphics card been connected to a PSU cable directly (assuming it has a connector for this)?
It'd be worth double checking all your connections IAW the motherboard product manual and for the lights that don't work try swapping the polarity around. It'd also be worth trying the Intel no boot wizard.
I would advise you to invest in a single 1GB DRAM stick and update to the latest BIOS before using 2GB modules. You may need to gradually update the BIOS versions rather than going directly to the latest version.
The BIOS RELEASE NOTES:
Added memory support for DIMMs with 2Gbit SDRAM density<-- in latest version.