I have an old Dell Optiplex GX1 that I want to revive. If I plug it in, the power comes on. However, the power switch has no effect (can't turn it on or off, have to unplug it to stop power). I never hear the start up beep or any beeps at all and a signal is never generated for the video output. To be specific, I mean no video signal at all as reported by my LCD monitor, which flashes a "no signal" dialog box when that condition occurs.
CORRECTION: In response to Marcus Chan's comment I did try the 5-second power button hold test and it does shut off the power. In all my trials I neglected that simple test.
I know there are other threads regarding "power on, no boot" conditions but I have some specific questions I would like help with. First, a few anecdotes:
- I already tried a new CR2302 CMOS battery. Didn't help.
- I added a processor upgrade kit a long time ago.
- Although the power button has no effect, the reset button does appear to function. Each time I press it, I can see the CD-ROM read light flash for a bit when the drive powers on.
- I already tried the test of removing every plug-in board except the VGA, RAM, and processor. Still won't boot.
- I am using the on-board graphics chipset for video.
I can get a replacement motherboard from eBay really cheap. My main concerns are:
- Did the motherboard fail?
- Did the processor fail?
- Did the BIOS somehow get zapped and that's the real problem?
My main question is, what are the tests/diagnostics I can run to determine which of the three modules above has failed? Any suggested solutions based on you best hypothesis for what is failing are appreciated too.
I am holding on to this ancient system because it is my dedicated music workstation. Anyone who has successfully configured a Microsoft Windows computer to work properly for music recording knows just how hard you have to work to get it to perform properly, especially in regards to interrupt handling and smooth audio recording/playback. In addition, the digitizing hardware is old and I'd rather not upgrade it or the expensive software I use for recording. It works fine and I'd like to revive it.