PC wont boot, Power is On, NO POST SCREEN, Fans will Run, no Keyboard or Mouse on.

lilj1983

Commendable
Jul 2, 2016
4
0
1,510
So I'm in a stump.

Lately my computer has been getting pretty hot, I recently had broke my Coolmaster CPU fan and had to replace with a cheap fan laying around. Everything was good, until I ran some heavy games RUST, DayZ or anything that requires a lot of stress. After about 8 hours of gameplay the computer would shut down. No warnings, it would shut down. So I thought, hey maybe its my RAM, so I decided to run CPU-Z and HW Monitor, and monitored them on my other screen along with task manager.

So what I found was that my (at the time 8gb RAM) was running at 99%, much higher than it used to be. I figured that it was just that, it was some pretty old RAM so maybe ones just going bad. No big deal. Then I wait a week and still the same problem, computer boots fine, everything is good. I do a GPU stress TEST on Afterburner and everything is good. Then I hop on Rust, and eveything going fine, finally when I boot in the computer shuts down. No warning. It takes about 5 minutes to be able to turn back on.

I'm thinking to myself, hey, maybe its the heatsink and cpu, maybe its just getting too hot, So I grab a couple fans and boot on and everything is fine, its slower to boot than normal, but the RAM upgrade is a helping my computer go faster. So I think this is great, now I boot into rust, im monitoring the computer and its at around 36°C (96.8°F). So i come to my senses and leave it off, and order a new H55 liquid Cooling system (still hasn't come in yet) and I decide for the mean time I can't game, but I can still do small things, browse the web, work/college. Everything was good.

((CURRENT ISSUE))) Then I come to the brilliant idea of trying to re thermal paste my CPU and heatsink, just in that might be the problem. So i had some trouble getting off my CPU from my heatsink, it was stuck and had to use an exacto knife to get it off. Finally it came off. Then I cleaned off old paste, cleaned heatsink and fan, then I reapplied some new thermal paste (Thermaltake TG-7) and did an even coat on top. next I put the heat sink, remounted fan and now my computer wont boot.

Power does turn on, Fans turn on, they stay on. When I restart my PSU the power will cycle and my keyboard and mouse will flash on, then back to black. My display will not show anything, no POST screen nothing.

I've tried resetting my CMOS by removing my MOBO battery, refitting my CPU, tried booting with one stick of RAM, tried using both VGA and DVI, but nothing. ALSO NO JUMPERS (PC came prebuilt by iBuyPower, they didn't include them 4 years ago)

Everything was working just fine 48 hours ago, no black outs, not random power sugers, nothing. Also one of the pins on the CPU was bent, however I bent it back into place using my magnifiying glasses a pair of tweezers. CPU is fitted properly, and I just cant figure out what to do.

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BUILD
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AMD FX 6100
MSI GTX 760
G-Skill 1600 DDR3 16GB RAM 2x8GB (Recently upgrade from 8GB 2x4gb )
Thermalake TR2 600W
WD 1TB Blue
Gigabyte MOBO - Doesn't show a name on it.


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The end result was the Power Supply. The GPU was fine and was tested on a rig running at 1000w platinum cert, we ran benchmarks on MSI Kombustor and ran a couple games like Witcher 3, Arma III, and Hitman absolution. The end result was that the PSU had finally given out.

SOULUTION: Power Supply was busted, needed new one entirely.
 
Solution
If the PSU is starting to due, since its a laptop, remove the battery and plug it into the charger. If it won't go after that, its likely a CPU problem or motherboard problem.

Ne0Wolf7

Reputable
Jun 23, 2016
1,262
5
5,960
Something similar happened to my laptop (which I dropped a few times). It was the mobo.
However, in your case, It seems you broke your CPU. Id never attack it with an exact o knife in fear of busting it open, but if a pin is bent, it's best to go to a professional. It seems you broke it.
As for what was going wrong before the processors pin was bent, I haven't got a clue.
I think the CPU broke because you tryed to bend a pin back in place, which is usually a bad idea, and power still goes through your system.
Sorry for the bad news, but you may need a new CPU.
Even if you were to replace the CPU, there would still be other problems to troubleshoot for.
 

popeyetyty

Reputable
May 7, 2016
691
0
5,060
Did you damage the CPU when you had to take it off with the knife, and when mine was stuck the best way to get it apart without using a knife is to twist side to side until it comes undone. But back to the topic the CPU could have got damaged from having it stuck and using the knife to take it off what i would do is check and see if there is any dings, dents, deep scratches, ETC, If there are none and you have a CPU laying around put it in to see if that's the problem if not try a PSU to see that to, if none of those fix it then im not really sure what it is besides it maybe being a MOBO, RAM, or GPU.
 

lilj1983

Commendable
Jul 2, 2016
4
0
1,510






No, I just used the knife to in between the CPU and Heatsink (I guess the top where the thermal paste goes?) no scratches, I was pretty careful, I just needed a wedge to take it off. I haven't cleaned the thermalpaste since the day I got it (maybe 4 years ago). There were no visiable scratches or dents, I cleaned it pretty well with 70% isopropyl alcohol pads.
 

popeyetyty

Reputable
May 7, 2016
691
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5,060


Okay so do you have a PSU, CPU, GPU, or RAM just laying around that is compatible with your MOBO???
 

lilj1983

Commendable
Jul 2, 2016
4
0
1,510


RAM yes, GPU, CPU, PSU and no. Just tried to put a spare CPU in and it wouldn't sit properly, so I figured it would be best if I didn't force it.


 

popeyetyty

Reputable
May 7, 2016
691
0
5,060
Yes for sure best not to force it, but have you tested the ram laying around to see if thats the problem? If its not then it can be a CPU or PSU problem most likely, i dont think its a MOBO due to the fact that it still slightly powers up, usually when it slightly powers it means the PSU is starting to go out.
 

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