Cant get Comp to Boot, Help pls


Dec 8, 2007
Ok, Si i upgraded my Machines Gfx card and Cpu, so i decided i would give them to my nephew, but in order for him to us them i had to get him a new Mobo His original system is a E Machine T3256. I got him a Asus P5KPL-CM Mobo, My old Ati 1900 GT Gfx Card, And my old Antec 400w PSU, And My E6300, And my old Ram which is 1g x2 sticks of hynix 2rx8 pc2-4200u-444-12 HYMP512U64CP8-C4 AB-C Not really sure what all those numbers stand for but thought i would try to give as much info as possible. So after i imstalled everything, I went to boot it up and it sounded fine, didint get not a single beep, But the monitor wouldnt turn on. It seemed like it wasnt hooked up at all. so i took out the gfx card and tried to boot it up again but when i hit the power button the system fans kicked on and sounded like it was starting but then it just powered off, i have tried to turn it on about 5 times now but it keeps doing the same thing. Also i had to get a new CD drive for him because his old 1 had that Long plug in (dont know what that connection is called) but i used his HD because it had the plug in for that on the MB which is also the Long Plug in. so the Cd drive is a SATA connection and the HD is not. Hope this will be enough info for someone to help me, I feel so bad that i cant get his system going. Please anyone help me if you can.

Thanks in advance,

You generally want a single short beep - assuming that you have a system speaker plugged into the motherboard. A single short beep generally means that the system passed the POwerup Self Test (POST).

After the checklist, try this:

Pull everything except the CPU and HSF. Boot. You should hear a series of long single beeps indicating memory problems. Silence here indicates, in probable order, a bad PSU, motherboard, or CPU - or a bad installation where something is shorting and shutting down the PSU.

To eliminate the possiblility of a bad installation where something is shorting and shutting down the PSU, you will need to pull the motherboard out of the case and reassemble the components on an insulated surface. This is called "breadboarding" - from the 1920's homebrew radio days. I always breadboard a new or recycled build. It lets me test components before I go through the trouble of installing them in a case.

Here's a somewhat extreme example of breadboarding:
You can momentarily short together the two motherboard pins that the case power switch go to.

If you get the long beeps, add a stick of RAM. Boot. The beep pattern should change to one long and two or three short beeps. Silence indicates that the RAM is shorting out the PSU (very rare). Long single beeps indicates that the BIOS does not recognize the presence of the RAM.

If you get the one long and two or three short beeps, test the rest of the RAM. If good, install the video card and any needed power cables and plug in the monitor. If the video card is good, the system should successfully POST (one short beep, usually) and you will see the boot screen and messages.

Note - an inadequate PSU will cause a failure here or any step later.
Note - you do not need drives or a keyboard to successfully POST (generally a single short beep).

If you successfully POST, start plugging in the rest of the components, one at a time.