Tom's Hardware > Forum > Motherboards & Memory > General Motherboard > My IBM machine won't turn on
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Da_Banig   01-21-2008 at 02:51:46 AM

Ok I got this IBM machine when I try to turn on, it turns on for half a sec and then it turns off. It will just keep on trying to do the same thing if I leave it without unpluggin the power. First I thought the PSU was bad, so I changed that but that wasn't the problem. I tried to change RAM as well... could this be the motherboard problem? My assumption is it is but I do not have another motherboard to test it out... anyone had/have similar problem? Thanks

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Conumdrum   01-21-2008 at 03:39:35 AM
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Dust? bad fan on CPU?

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Da_Banig   01-21-2008 at 06:39:34 AM
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Nope, everything is clean and the fan is working. I even swapped another CPU and tried. same thing

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engrpiman   01-21-2008 at 08:45:53 AM
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could your power switch be bad. If you short out the power button connectors on most motherboards the computer will turn on then turn off in 4 sec or less. if you are going to try this also test the reset switch. Sometimes a bad connection to the motherboard can make all the difference.

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croc   01-21-2008 at 08:56:45 AM
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Perhaps some more system details might help... IBM model #? Processor ? Memory? PSU?

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Da_Banig   01-21-2008 at 04:00:50 PM
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I did another test and I found out something if I took out the CPU and turn on the computer, it looks like it runs fine all the fans turns on and start spinning. It can't be the CPU issue becacuse I put in another working CPU and tried. I am not next to that PC now I believe the model is 8078, P4 3.0Ghz, 512RAM 200PSU

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loneeagle   01-21-2008 at 04:37:37 PM
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Maybe a defective MB. BIOS can't communicate or having problem while testing the CPU?

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Da_Banig   01-21-2008 at 04:49:25 PM
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Could be, just don't wanna conclue that yet because it is then the whole PC is usually since I am not going to get another motherboard lol beside its a pretty old PC

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