after loading new memory and i have put back the old memory... loading new memory 3 beeps and red lite on motherboard... old memory 3 beeps and red lite on motherboard monitor does turn on and computer will not load... please help me... not a pro at computers...

3 short beeps = memory problem 3 long beeps = keyboard problem 1 long, 2 short beeps = video problem My guess is you're not fully seating the memory in the slot. You have to push down firmly until it clips in place.

im still not understanding why the red light stays on,,, what does that mean,,,

Motherboard make/model?

motherboard intel D845EPI... I sure do thank you for helping

I also have an Intel board and jam is correct, 3 short beeps is a memory problem. I would check the Intel website to see if your memory is compatible with your motherboard. Just because you have the right speed memory does not always mean the memory is compatible, I learned that the hard way with my Intel DX48BT2 motherboard.

Look at the ram modules. At each end you'll see white (usually) latches. They should be locked into the little notches on the ram. Try removing the ram and reseating them. Push gently but a. Little hard. You should hear a slight pop when their seated right. Also try defaulting the bios. That will reset the ram settings. WinXp Amd 64 3000 Msi Neo2 Platinuim 1 gig ddr 400. When we cast a pebble into a pond we should look past the first ripple.