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PC Turns Off after few seconds

Last response: in Motherboards
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March 20, 2004 12:59:08 AM

I have a old IBM 300PL (P2 300MHz) that I was testing Linux with. It worked fine for a couple days but eventually it just stopped working. It has 2 SDRAM sticks of 32MB PC100 memory, both IBM brand but different models. When I have 1 or both of the sticks of memory in it will start up, not even get as far as BIOS (no display), and will shut off. It's about 4-5 seconds.
With no memory at all it will not shut off, but will give me a beep/pause/3beeps/pause/beep code. Probably a no memory beep code because of no memory.
Is this as obvious as me fing up the memory by turning it on/off since im testing it? Or do you think it's a blown CPU or something?
Just want to know what to replace, besides the whole thing, but it ran fine for Debian woody.

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March 20, 2004 1:36:17 AM

Try it without drives, see if you can get to the bios screen. Most likely problem is a bad psu, or connection.
March 20, 2004 2:14:21 AM

Nope. Tried with the harddrive/cd-rom disconnected and nothing. Tried a good/new high wattage PSU and didn't work either. Worked fine before, now nothing. I'm sure it's either CPU or Memory, just want to know what those symptoms would mean.
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March 20, 2004 9:07:26 AM

What PCI cards do you have? Try playing around with them (taking them out, moving them to a diffarent slot etc..)
Also check your PSU, not long ago I had a computer that would turn off after a few seconds of running due to a defective PSU.

Just another poster..
March 20, 2004 4:03:50 PM

I have a 8mb video card and 2 10/100 NICs in it for PCI cards. Nothing changes when I take them out, and like I did before I used a good PSU.
March 21, 2004 12:28:30 AM

I think you have squeezed the last bit of life out of this unit. Bad MB or CPU seems likely to me. Time for an upgrade anyway at E-Bay.com. You can probably get a 500+ CPU and mb for 50 bucks.

"I am become death, the destroyer of worlds. Now, let's eat!
March 26, 2004 12:56:44 AM

Bit of an update:
It is not the memory, got a new stick of compatible memory.
It is not the CPU, got a new one (well a new 300MHz PII).

So it's gotta be the mobo. Really dont want to buy a new one but I have all these parts, and its just linux, runs on a 468 with 6mb of ram.
!