New setup won't POST

waynetx383

Distinguished
Mar 23, 2009
2
0
18,510
I just purchased a new socket 775 board, intel celeron 440, and a 1 Gb stick of Kingston DDR2 667. With just the bare essential connections I am getting no video or response out of the system. The CPU fan powers up and stays running, but there is no video output from the system and no beep codes. If I do remove the RAM and power up I get a solid beep code. I also tried hooking up my SATA drive to check and see if I noticed any drive activity, and aside from the initial spinup nothing there either. I'm trying to determine if the problem is the board or the processor. I already exchanged the board and processor once, as the first setup would scramble the graphics and lock up after being on a couple minutes, but that combo did load with the RAM. Any suggestions on this before I make another trip across town would be greatly appreciated.
 
What kind of PSU?

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.

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 a bad motherboard or 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.
 

waynetx383

Distinguished
Mar 23, 2009
2
0
18,510
Everything is hooked up properly. I have built multiple machines in the past, and worked as a PC technician several years ago. I've done breadboarding on the system and still the same results. I hooked it up to a PSU that I pulled from one of my other actively working machines, so I know that is not an issue here.

I get no beeps when the stick of RAM is installed, and when removed and powered on I get one constant beep, with NO break at any point in it. Its just a steady beep until you remove power.

I get no video and no sign of a single short POST beep. I also get no drive activity at any point when connecting my SATA drive.