I changed the power supply from 250 watt to 500 watts, but after I changed it, only the light that powers the fan comes on and the light that tells me the pc is booting up doesn't come on at all like it usually does. The new power supply had a 12v connector, and the last one didn't. The motherboard had a socket that fit perfectly with the 12v connector, but I think when I connected it, it might have caused a motherboard short circuit. Would this be the cause? Is there any way to repair it now? if that socket wasn't for the 12v connector, what would it be for then? sorry if this is alot of questions and thanks for any helpful advice.
2006-09-26 11:22:21 · 6 answers · asked by grunge4 1 in Computers & Internet ➔ Hardware ➔ Desktops
I also tried to boot it up without the 12v connected and only the 20pin connector, but it still didn't boot up whatsoever, not even enough to use the recovery disk.
2006-09-26 11:23:35 · update #1
I tried it with the 250 supply and still doesn't work now. can I at least salvage the chip to put on our emachine? =(
2006-09-26 11:30:35 · update #2
are you sure you plugged the hard drive into the motherboard? the harddrive into the power source? the power source into the motherboard? did you be sure to touch metal before you went into you're computer? (not doing so can cause damage to chips)
that COULD be why you're computer is not working... or the monitor is unplugged...
2006-09-26 11:25:41 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I think you need to check a few more things first...
Firstly have you tried the new PSU with the 12v connector unplugged? Could be this new 12v connector is causing problems if you've not had to use it before.
Secondly check everything else is connected correctly - including PCI cards, AGP cards, memory, etc
Thirdly when the computer starts up if you have the PC speaker connected (the internal one, not the sound card one) does it beep at all. If it does then all is not lost, the beeping is just the motherboard telling you what is wrong. Usually it's either the video cards not pushed in properly, the memorys not in correctly or the CPUs not in correctly.
Also check on the motherboard that all the jumpers are in the right place and that the front of case wires are all connected correctly (positive to positive, etc). Another important thing to check is the BIOS reset jumper. When the computers off try putting that in the "clear" position then moving it back to the normal position BEFORE turning your computer on (v. important DO NOT TURN YOUR COMPUTER ON IF THE BIOS CLEAR JUMPER IS IN THE CLEAR STATE! - if you already have you might get away with it if you're really lucky!)
Finally another solution is to see if the m/board still works with the old PSU, if it doesn't then it's probably gone to silicon heaven
The idea of the additional 12v connector for the CPU is to take the load off the 12v wire on the connector so that it doesn't overheat and melt the connector.
2006-09-29 09:31:19 · answer #2 · answered by darrenforster99 6 · 0⤊ 0⤋
The "difficult" part of any computer repair is not the actual repairing, usually is it trying to figure out just what exactly needs to be repaired. So, like a previous answerer stated, hook up the old power supply first. If it all works then, it's the new power supply that is wrong for your old mainboard or the components inside the case. Or, the "new" power supply might not be working itself. This is a tedious annoying check since it requires a voltmeter and going to EVERY lead coming out of he power supply. Not difficult, just tedious. Worse come s to worse, take it to the repair shop, sorry can't offer more than that.
2006-09-26 11:37:01 · answer #3 · answered by quntmphys238 6 · 1⤊ 0⤋
truly no answer yet a query. Why visit the time and worry to regulate a 350 watt for a four hundred watt? in case you deliver it lower back, ask for per chance a 500 watt ability provide or larger. Now to the question? some motherboards have a separate smaller 12 volt plug in for the CPU. without it, the Motherboard gained't artwork.
2016-12-02 03:13:39 · answer #4 · answered by dahle 3 · 0⤊ 0⤋
Ok, first I would hook the 250 back up if you still have it. If it still works, then you are good so far. And go from there. I know this does not answer your question completely, but there are so many variables that it would take alot to list everything that could be wrong or have gone wrong. If you fried something on the motherboard, consider it trash.
2006-09-26 11:27:43 · answer #5 · answered by gotur6 2 · 0⤊ 0⤋
Opps!
2006-09-26 11:24:46 · answer #6 · answered by MC 7 · 0⤊ 0⤋