HP Pavillion a6442 - put back together wrong?

[Encored]

Hi there,


A year ago, I had a working PC. I brought it up to Uni to find it worked for about 20 mins then stopped displaying. I ended up following an advice thread suggesting I take the components out and give them a clean to then put them back. Though I fear I put them back wrong...

It's been a while now but;

The computer turns on, though still doesn't display. It makes 3 beeps. followed by 4 low beeps and then a high beep.

Does anyone know how to build one of these, or a thread that might show me where to put everything?

Any info would be great.

Tyvm,

Encored.

 

[wolfeking]

You are getting beep codes, that is good.

1st step, remove anything not needed to boot to BIOS. you should leave power, 1 RAM stick, a video card if you have one (if integrated is there, use that), CPU and HSF. then try to reboot. If it starts, then start adding 1 part back at a time until you find the at fault part. If it will not boot, remove the Motherboard from the case and place it on a box or antistatic bag and try to boot.