SomeGuy
Veteran Member
I'm guessing the motherboard is just shot, but I'll ask just in case.
I have a Dell Optiplex GL+ 5100 Pentium 1 system that was working fine last year when I tested it. It was great for running NT 3.51 and the QNX 1.44mb demo disks.
When I try to power it on, if I press and hold down the power button the hard drive and CD drive spin up, but the motherboard just sits there doing nothing, and when I release the power button the power instantly shuts off.
If I hold down the power button and press the reset button I get a beep code - three long and two short. The motherboard doesn't seem to do anything else, I get no video, and I don't think it is doing anything with the keyboard.
It has a fairly fresh CMOS coin cell battery, I think I put that in last year. Of course, I tried taking it out to see if it would reset anything. No luck there. Also tried it without any ISA cards installed.
I don't know what that beep code means for this specific machine, but various sites equate that to a memory error. I also tried switching around the RAM chips and tried some other ones. No luck there.
The power supply is not a standard ATX, although it uses an ATX plug. So I don't have any other power supply to test with. Although since the hard drive and CD drive seem happy until I release the power button, it doesn't seem like a supply issue.
I think it has a Pentium overdrive installed in it, but I never did write down the details.
Any ideas? At least any confirmation of what that beep code means here?
I have a Dell Optiplex GL+ 5100 Pentium 1 system that was working fine last year when I tested it. It was great for running NT 3.51 and the QNX 1.44mb demo disks.
When I try to power it on, if I press and hold down the power button the hard drive and CD drive spin up, but the motherboard just sits there doing nothing, and when I release the power button the power instantly shuts off.
If I hold down the power button and press the reset button I get a beep code - three long and two short. The motherboard doesn't seem to do anything else, I get no video, and I don't think it is doing anything with the keyboard.
It has a fairly fresh CMOS coin cell battery, I think I put that in last year. Of course, I tried taking it out to see if it would reset anything. No luck there. Also tried it without any ISA cards installed.
I don't know what that beep code means for this specific machine, but various sites equate that to a memory error. I also tried switching around the RAM chips and tried some other ones. No luck there.
The power supply is not a standard ATX, although it uses an ATX plug. So I don't have any other power supply to test with. Although since the hard drive and CD drive seem happy until I release the power button, it doesn't seem like a supply issue.
I think it has a Pentium overdrive installed in it, but I never did write down the details.
Any ideas? At least any confirmation of what that beep code means here?