Testing a Power Supply, any REAL way?
Well the kids system is still not working right, recently it has not been turning on at all or it turns on enough to runs fans for 3 seconds and stops. This has been an on going problem but she has not been home enough to use the system so I haven't messed with it for awhile. Well today I dragged it out. Try to boot it and fans ran a few seconds then off and that's all. stripped it down to bare system board and CPU, same thing. TESTED the power supply with 2 different power supply -*test*-('")ers, it shows good?? Ya, right, I think the -*test*-('")ers lied! I connected the bare system board to the power supply in my Iwill XP333 system and the fans turn on and run forever or untill I shut it down. Did this about 12 times!! Moved the system board back to the other P/s and sure enough it turns on a few seconds and shuts down. Sometimes I think I hear a sizzling sound, not sure. So far I have moved the board from P/s to P/s a dozen times or more, and sure enough it turns on and runs fine on the one from MY system, only runs fans for 2-3 seconds on the kids system. Since I have swapped the board back and forth so many times now, everytime with the same result, I must conclude the kids power supply is faulty as it has not worked once and mine does everytime! In moving the board back and forth so much it's imposible it could just be a bad trace or loose part or bad power socket etc.. The board is moved around and layed out different ways all the time, always with same results. My -*test*-('")ers show the power supply works, the system board shows the power supply does not! Is there any REAL way to -*test*-('") one? These -*test*-('")ers I bought to -*test*-('") them obviousily just turns them on and if they turn on show a bad supply is good. One -*test*-('")er is SUPPOSED to load the lines and has LEDS that show green for good, red for bad, and they are all green but it still does not run a board and CPU only ???
Well the kids system is still not working right, recently it has not been turning on at all or it turns on enough to runs fans for 3 seconds and stops. This has been an on going problem but she has not been home enough to use the system so I haven't messed with it for awhile. Well today I dragged it out. Try to boot it and fans ran a few seconds then off and that's all. stripped it down to bare system board and CPU, same thing. TESTED the power supply with 2 different power supply -*test*-('")ers, it shows good?? Ya, right, I think the -*test*-('")ers lied! I connected the bare system board to the power supply in my Iwill XP333 system and the fans turn on and run forever or untill I shut it down. Did this about 12 times!! Moved the system board back to the other P/s and sure enough it turns on a few seconds and shuts down. Sometimes I think I hear a sizzling sound, not sure. So far I have moved the board from P/s to P/s a dozen times or more, and sure enough it turns on and runs fine on the one from MY system, only runs fans for 2-3 seconds on the kids system. Since I have swapped the board back and forth so many times now, everytime with the same result, I must conclude the kids power supply is faulty as it has not worked once and mine does everytime! In moving the board back and forth so much it's imposible it could just be a bad trace or loose part or bad power socket etc.. The board is moved around and layed out different ways all the time, always with same results. My -*test*-('")ers show the power supply works, the system board shows the power supply does not! Is there any REAL way to -*test*-('") one? These -*test*-('")ers I bought to -*test*-('") them obviousily just turns them on and if they turn on show a bad supply is good. One -*test*-('")er is SUPPOSED to load the lines and has LEDS that show green for good, red for bad, and they are all green but it still does not run a board and CPU only ???