• Log InLog In
• Register

Burning smell- followed by PC not turning on - Page 2

Post a Reply Prev 1 2 All

AxeHero Australia8 Posts December 30 2011 23:19 GMT #21 Happened to me once, It's your PSU.

Ound Latvia26 Posts December 30 2011 23:22 GMT #22 Well I am not sure, but it is most likely and your best hopes are, that it's a dead PSU. My 3,5 year old PSU died this summer as well. Well it died slowly, I wasn't sure what caused my PC not to turn on after longer periods of being off. When I pressed power button, it just turned on for 2 secs flashing LEDs and starting up fans, but after that nothing... sometimes turned on and worked. But I did some research and replaced my PSU with a new one, less power, tho quality one. Seems like your one just gave out in a hard way. :D

SlyPanda United States25 Posts December 30 2011 23:44 GMT #23 Its been said several times now but in my experience this is usually the PSU, I would try replacing and see if the performance improves, if you have another compute you can try swapping PSU, assuming they are compatible, to see if it works before spending the money on a new PSU.

Alvin853 Germany149 Posts December 31 2011 01:30 GMT #24 either dead PSU or something else blew up and caused a short circuit, and your PSU detects the high current due to the short circuit and goes into protection mode. easiest way to find out: disconnect EVERYTHING (this is really important, or you might cause even more damage) from your PSU, except for a case fan. Now use a paper clip or a short piece of wire to bridge the green lead on the 24 pin plug of the PSU (the one that goes to the mainboard) to any of the black ones in the plug. This will tell the PSU to turn on, so if the case fan doesn't start or stops spinning after a second your PSU is dead. had the almost same thing happen a few years back, turned out my PSU was fine, but i noticed this on the back of my graphics card:

Snake.69 Canada140 Posts December 31 2011 01:36 GMT #25 90% chances that its the power supply, i had the same thing happen to me, mobo light still light up. Changed power supply and bingo back in action.

Celestia Mexico376 Posts December 31 2011 01:49 GMT #26 Yeah, it doesn't matter if the mobo led light up, it can still light up with a faulty PSU.

StayFrosty Canada743 Posts February 11 2012 01:19 GMT #27 Hey guys, I managed to get a new PSU today and got it all set up. Computer turns on, everything seems great, it gets to desktop,and after about 15 seconds from that point it randomly turns off. I've checked connections, everything seems fine. Any suggestions?

SoulWager United States464 Posts February 11 2012 01:26 GMT #28 can you get your temperatures?

StayFrosty Canada743 Posts February 11 2012 01:38 GMT #29 Just tried to reset BIOS, that didn't work. Also tried to check plug connections again, everything seems plugged in properly I can't stay in the desktop long enough for it to load and check temps.

StayFrosty Canada743 Posts February 11 2012 01:50 GMT #30 Think I found the problem. I don't think the CPU heatsink was in all the way. I unplugged it tocheck if the CPU was lodged in correctly and the casing almost burned my finger. Just connected it properly, will post back with details soon.

ABagOfFritos Canada454 Posts February 11 2012 01:52 GMT #31 Check temperatures in your BIOS then. Try removing graphics cards and any other expansion cards and just pop in one stick of ram and plug video directly to the mobo (if possible). Even go as far as removing the HDD and going into the BIOS only to see if the thing runs for a decent amount of time. If you have any other HDDs with an OS on them plug it in and see how it runs, this could help you narrow down what is causing the problem if it is in fact a hardware problem.

StayFrosty Canada743 Posts February 11 2012 01:55 GMT #32 It was the CPU heatsink! yay its up and running - thanks guys!

Prev 1 2 All

Please log in or register to reply.