Pc won't start. It shows a red light.

[Asim13]

Hello there! My PC doesn't boot and it shows a red light. But after some time, It turns on. Please tell me the issue. It takes 2,3 hours to boot. After 2 3 hour's, it turns on and if i turn it off, it boots fast. But when i wake up, after a day i mean it doesn't work and same problem is faced. Please help!

 

[PlsHelpMeImKindaNewToThis]

That usually means it is a CPU problem, here you go a troubleshooting guide: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

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[mdd1963]

Actual CPU problems are relatively rare, however....; and a cpu that needs a 2 hour warm-up, even moreso.....

If you have another power supply of sufficient wattage, I'd start there. (if the PSU does not help, you can remove/disconnect all components except CPU and a single stick of memory in required slot; if problem persists, I'd bet mainboard 10-1 compared to cpu being the issue, barring someone spilling conductive Artic Silver over the heat spreader, of course...

 

[EastCoastCanadianMrFixIt]

Power supply issue likely. Look for swelled capacitors on motherboard and try a good power supply unit psu from some case from the trash.
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