Power up problems

[mattyj1085]

I am having problems with a pc powering up it was fine up until a few days ago when it crashed whilst on a game and I just got no signal on the monitor display and had to reboot.

Now though when I try and power it up i get a variety of different problems.

Sometimes I get 3 short bleeps then it turns itself off, I dont know what this means and nothing shows on the screen.

Other times It starts the fans spin then shuts off then starts up agian in a continous loop until you pull the power lead out.

I have had it all apart and out of the case to try and eliminate it shorting out.
Problem is It did work when I took it out of the case the first time I tried now I've tried it again I get the same problems.

Anyone got any ideas on what could be faulty?

 

[mattyj1085]

Its not the system in sig its another I have (a64 3000+, abit AN8 Ultra)and its not overclocked anymore as Ive tried clearing the cmos many times to see it that solved the problem

 

[mattyj1085]

I see, should have stated that. Yeah anyway, 3 Short beeps signifies a Memory Error. Test each Memory module at a time and run Memtest for each of them.
Make sure you have also configured the right voltages and timings that are stated for that particular Memory.

I would check the voltages if I could get into the bios I dont get any display on the screen what so ever could it be a graphics card problem??