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PC Doesn't Turn On When Power Switch Pushed


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#1
Bronski

Bronski

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[size=4]Have eMachines T2542 PC that will not turn on when power switch is pushed. Got ac power to input of power supply and power switch is working (checked for continuity at motherboard connection when button is pushed).

Can't determine if motherboard or power supply is malfunctioning. (Both CPU and power supply fans don't run).

Anyone know how I can isolate the problem? It'd also be great if I could find a manual for the motherboard to get more information.

Would greatly appreciate any help.

Bronski
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#2
SRX660

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Quite often the fans will run even tho the motherboard is toast. If nothing starts up at all i would first replace the power supply. I have a e-machine T2642 that got the Mb fried in a storm. In my testing i first installed a thermaltake 430 Watt PS to see if that was the problem. It was not the problem but i now know that standard ATX PS's will fit these cases. I ended up installing a Gigabyte Mb in the case so i could use all the drives, proc, and memory. The MB had to be mini-ATX to fit the case. I also found that the H-L(hitachi-LG) cd-rw is really a piece of junk. An old 24X lite-on is a better burner.

SRX660
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#3
fleamailman

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Here is the trick of using a paperclip in the plug of the power suppy to mobo, if you do it in the right two holes the powersuply will turn on, meaning the power supply is working, thus telling one that my problem is the mobo. Of course I disconect the other leads while doing so.

http://www.techarp.c...rtno=268&pgno=0

Edited by fleamailman, 30 September 2006 - 04:32 AM.

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#4
Bronski

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Tech Staff and 1K,

Thanks for the quick reply. Your advice was most helpful. It turned out that the power supply was toast and it took out the mother board when it went.

According to the techs at a local computer repair shop, this is a common occurence with emachine PCs. When the power supply goes, it usually screws up the mother board also.

Once again, thanks for the help.

Bronski
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