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My desktop PC wont start up :( There's power to the motherboard, so it's not the power supply, but when I push the start button, nothing. Whats the next step? How do I know if the motherboard is fried? There's an LED on the motherboard that lights up when I plug the power in, but when I press the start button, nothing happens. Fan dosn't start up, no lights on the front panel come on, nothing. I guess the start switch could be hammered. I know this isn't a PC forum, but you guys (and girls) are smart, generally helpfull, and incredibly good looking ;) Any help appreciated. Cheers |
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sounds annoying! good luck. |
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Thanks :) I just hope I can fix it without having to take it into someone. Who knows what would happen then. |
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i think it's dead :'( |
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It sounds likely that it's the power switch. A lot of cases are built so that you can take the faceplate off and you'll see the real button behind the button (if that makes sense). |
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it could also still be the power supply, just that its giving a very minimal amount of juice. if youve got a volt meter check the power output of the ps. |
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I took the faceplate off and checked the switch. It looked ok, but i'm not too sure how i would really check......hang on, had an idea...... and i don't have a voltmeter....... let me try my idea.......... |
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i swapped the reset switch and the power-on switch over and that didn't fix it, so i doubt it's a switch. If the motherboard was fried could the power LED on the board still come on? It is on when I plug in the mains but nothing else happens. I hope it's a low voltage on the power supply..... |
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Unmount screws, take the motherboard out of the case and put it on desk or something (only leave the processor and cooling fan on it). Unmount the power supply too, and take all the plugs out. Next, take some cable that would fit in two holes of ATX connector, and put it like (one side into green, one side into black). Then turn on the power supply, it should start. Try cleaning all the dust from motherboard, cooling fan, maybe put new thermal paste on the processor. Next, if Your power supply works, connect it to the motherboard, reset CMOS (by pin, or battery) and short circuit the PWRON, to check if it works.. |
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damn that piece of text got me hard. |
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ok, cheers.... few questions... Is the CMOS the battery that I can see on the motherboard? What would happen if the battery was dead? would that stop the whole thing from starting up even though it had power? and if i change the battery would that fix it? thanks again |
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no, the cmos battry is merely there to store a little information on the motherboard like bios settings and the date/time. a dead cmos battery only means the mobo will boot into the default settings every time. also, very veeerrry careful to make sure, if you choose, to use woj's idea - if your board isnt fried now and you do that wrong, it will be afterwards. |
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You can check if its good - with voltometer, should have around 3V |
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he already said he doesnt have one |
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i had the same thing, the led on the motherboard was lid. however the powersupply still was broken |
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motherboard was fried. the guy at the shop was amazing. pulled it apart, checked all the components, confirmed it was the motherboard, reinstalled a 2nd hand motherboard and put it all back together in 30 min for $15 labour and $40 for the board. No complaints from me! He was an uber-geek and seemed to really enjoy himself! :) |
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i can understand that - people think its weird when i volunteer to reinstall windows on their computer. |
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