JimmyA

Really could do with some help. My PC (P4 CPU) was running fine for a year. Now I get a dead screen on Boot. I have checked the power supply, Screen, Memory, and HD and they seem to be fine in the other computer. When I power the PC, Keyboard has the lights, Fan and the PC power lights are on too. At time, when I am lucky, I do get the Screen up and with a message the System has been booted few times, Cannot remmber the rest of the message. I have taken out the graphics cards and using the MOB and still have the same problem. If I take the memory out I get the bleep code to say no memory. I stripped out all the connections for the Drives and also removed the wireless cards. The other point that may be of help is when the system dies if it every boots I do get a message the HD DMA mode xxxx is present but not enabled on the bios. Forgot to add, I get no bleeps and no screen.

Spriggan43

Clean the board and all so check your CPU in a different pc as with the ram... Double check to see that the pugs are in the right place e.g. power

Ralck

Have you tried clearing the CMOS?
To do this, unplug the computer, press the power button (clear out any residual power), take out the CMOS battery (looks like a small coin), wait 10 minutes, put the battery back in, plug the computer back in, and turn it back on.

If that doesn't help, try to reseat the processor and reapply thermal paste, as your processor could be overheating.

Can you tell us what type of cooling you have in your system, as in how many fans and where?

dai

would suspect the psu,list your system specs including the power supply
testing the supply in another computer
the result depends on if the other computer is drawing the same amount of power
if it is a less powerful computer the results are not valid