Thread: johnny A+
April 19th, 2012, 09:40 AM #1
- Join Date
- Apr 2012
IS there a test you can use to verify which is faulty The Power Supply or the Motherboard that is faulty when the comuter does not boot up now that the Power on/off switch is wired through the motherboard?
April 19th, 2012, 10:46 AM #2
Welcome to TechIMO!
Yes and no.
The only components that there is a software test for is, Hard Drive, and Memory.
You can do basic tests on the power supply, with a multi-meter, just to see if the power is turning on, and you are getting 3.3v, 5v, and 12v. at the right places.
The power supply would have to be further tested, under load, but if it is not starting, this test is mute.
You need some electrical knowledge.
It could be the power switch, also.
Test the power switch by removing the plug from the motherboard, and shorting the 2 pins, for a second, with a small screw driver, or the like.
To test the power supply, short the green wire to any black on the ATX power plug, for a second.
The dependable test, is trying another Power Supply, or trying yours, in another computer.
Basically all parts, except for Hard Drives, and Memory, have to be tested, by substituting parts.
Even computer shops, have to do it that wayHard Sayin Not Knowin
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