Bit of a pain for you.
First thing to try is clearing th CMOS by moving th jumper caps. Follow the steps in the Mobo manual. If no luck.
I think we should do a bare bones set up for a basic test of the components.
You have been using the 500w PSU. You must be 100% sure it is OK otherwise reosrt to using the known working one. You can leave it inside the PC providing you detach every single power cable.
Unplug from the wall socket, take anti static measures.
Remove the Mobo from the case and place on a clean plain (no printing) piece of cardboard a little bigger than the board.
You were using the on board graphics before, but if not, remove the add on video card and any other add on card installed.
Remove the 2 sticks of RAM from the BLACK slots and place to one side.
Remove one stick of RAM from the A2 BLUE slot, place to one side SEPARATE from the first 2 sticks.
Consult your Mobo manual to clear the CMOS by moving the jumper caps but, DO NOT, proceed to starting the computer at this time. .
Connect the following.
The 20+4 pin and 4+4 pin power leads.
the monitor to the correct socket on the Mobo.
Ensure the CPU fan cable is still connected to the CPU fan header on the Mobo.
If you have a internal system speaker, connect to the front panel header on the Mobo ensuring the positive marks (+) match.
Connect to the wall socket, turn on the PSU.
With a small blades screwdriver, short out the the 2 pin power switch on the front panel header. do not enter BIOS.
If a fail, let us know.
If the computer starts, you should get a signal to the screen proable with an error code like, no OS, or no HDD detected. If you have connected the system speaker, you should get some beeps.
Restart the PC by shoring out the reset pins on the front header panel and press or hold down the delete key to enter the BIOS.
Set the time and date, go to exit, select Load Set-up Defaults
, Save and Exit. The computer will restart.
Switch off the computer, reinstall the single stick of ram to the blue A2 slot. start the PC. If OK, switch off, add the other sticks of RAM to the black slots, switch on. If OK
Which PSU have you been using for the test?. If the 500w, let us know before proceeding furthing.
If the 1000w, remove it. connect up the 500w and start the PC. do not proceed urther, let us know the results.
Edited by iammykyl, 04 November 2011 - 09:11 PM.