Hmm okay, so there is nothing changed.
You still have a death box, with only the two network leds on.

Based that you have replaced the four big caps.
That you have all the main voltage on the P5 pins.
http://jb8a8f8.com/support/index.php?attachments/dm800hd-fault-finder-pinout-2013-jpg.21/

The main ohm values on the P5 pins are also fine.
http://jb8a8f8.com/support/index.php?attachments/dm800hd-fault-finder-pinout-ohms-2013-jpg.23/

So there are no measurable things that tells that there is something wrong.

Than I'm afraid it would probably a cpu problem.
_________________________
Doing nothing leads to nothing.

------------- Please note, for technical support -------------
Will be given here, or on the jb8a8f8 forum and I prefer it in English.
Johnny B.

Click on the banner if you like to go there..