Hi, hope someone will be able to guide me here as I got huge problem with my custom build PC.
I was playing a game this evening and the PC just randomly shut down. my first thought was that it overheated as the game is demanding, i tried to turn it on and the LED fans just blinked for a split second and shut down again.
I tried different combinations with turning on and off my PSU and leaving it off for a while but nothing worked at all...
I looked into my PC and took the CPU out and cleaned the liquid cooler + the CPU so there is no any thermal paste and applied a fresh one. Installed all correctly with correct amount of paste but same result.
I have tried unplugging all devices including USB's and fans so just the PSU is plugged in but it still didn't help at all, same result.
I took ram out, ram in, changed sticks around - no good.
My bets are on either two: Faulty PSU / Faulty MOBO - which one though?
Can it be the CPU? I got a brand new CPU + Liquid cooling solution for it a month ago... Please advise should I also consider a faulty CPU?
I got no other PSU MOBO or CPU to test it on so I am kind of screwed. I will probably buy one and risk it but I need to positive which of the components should I buy?
My Specs are:
Corsair Vagance 1600mhz 16gb ram (2 sticks)
i5 3570K 3.4ghz + Thermal Cooling solution from Intel.
EVGA 660TI 1046mhz
SSD 256gb OCZ
HDD 2TB Western Digital
Asus DG 5.1 sound card
TP Link Wireless card
The PSU I have is: Alpine 700W (It's a cheap one but is it a bad one? Would it be able to cause such issues with my system?)
It happened to me 2 weeks ago too, but I was able to get it up and running after waiting like 3 minutes. If it happened back then and it worked after 3 minutes, why does it not work now again, sure it would be broken after the first time...?
That PSU is really crappy. For the specs you have you should really have bought a silver or gold certified PSU. It probably is your PSU, but do you have a multimeter? You can test your PSU output with that. Also what MoBo do you have?
I would try breadborading the system, this involves placing your mobo on top of its box or any cardboard box that's big enough, install the CPU + heatsink and 1 stick RAM, and the PSU. Short the start pins with the tip of a screwdriver (connect the 2 start button pins with the head). If it turns on and proceeds to run, continue adding parts, one by one, until you find whats preventing it from running.
black to red 5 +/-5%
black to yellow 12 +/-5%
black to orange 3.3 +/-5%
Your meter should be set to DC voltage(24 volts and under for meters without auto range)
Your meter will NOT see voltage ripple, but chances are this is not a ripple problem.
you can hotwire a power supply by shorting the GREEN to any BLACK(in the 24 pin connector. Please short this with the power supply OFF then switch it on), but disconnect it from the system first. Also note that testing this way does not present any LOAD so the power supply may not stay on and the voltage readings are not too accurate.
To make things more interesting the power supply has a wire that tells the board that the power is ok. If that messes up, the system will not boot no matter how good the actual power is.
I once had an Antec power supply not provide the right voltage to the power ok signal so I could not boot, but the power was actually good and it worked on a board that did not look for that signal and the voltages tested out stable.
If you got paste on the board, use rubbing(isopropyl) alcohol(and a qtip) to remove it(70+ percent, higher is better). Do NOT touch the cpu socket(LGA) if you even bend one pin in that thing you will loose all warranty from the board maker.