Computer fails to post sometimes / overclocking

blurpro395

Commendable
Sep 15, 2016
28
0
1,540
This is more of a two part question.

I've bought a used PC from a guy about 5-6 months ago. In fact, it had only been used for 1 year. The specs are as follows:

- i7-5820k
- Zotac Mini GTX 1060 6GB
- Samsung 850 Evo 500GB
- Asrock x99 Pro. 3.1
- 4 sticks o/ AMD R7 Performance series (4GB each, so 16GB)
- Windows 10 Pro
[none of these are overclocked]

The very first day I recieved the computer, I booted and everything was swell, althoug, over time, problems began to occur. Now, the computer does not boot consistently, I should say. I've read a few solutions online, and tested some, like:

- Unplugging any USB drives (or anything USB related) from the computer when it boots
- Switch main boot drive to my main drive (I thought it would work, but nothing)
- I tested my RAM, nothing was wrong with it

Also, about 3 months ago, I purchased an APC surge protector. Problems seem to have started then, although, I'm not sure. It could be just me obliviously plugging things in at the wrong place. The computer will turn on absolutely fine, but the monitor won't receive a signal from the PC.

So enough of that problem, let's go on to the next.

There are multiple problems which occur with overclocking.

I've found some pretty good overclocks around 4.2GHz, but none of them were really 100% stable. Sometimes my computer froze, sometimes it doesn't. During overclocking, i've noticed that the voltages need to be quite high, e.g 4.0ghz for 1.350v, anything below crashes my PC. Oh, and if these are needed: I have a NZXT Kraken x31, a Silverstone 600w 80+bronce PSU

Sorry if the thread seems to be all over the place, not an incredible writer :p

Thanks to anyone in advance.
 
I ran into something similar. My machine would boot OK first time in the morning. Then if I turned it off and came back to it after 10 or 15 minutes it wouldn't boot. If I let it sit for a while it would boot again. But sometimes I had to use the reset switch and/or unplug the power cord, plug it back in and boot again. Some times it would boot if I used the front panel on/off to turn it off and the immediately back on after initial problem. Thinking it was heat related I re applied compound to CPU and northbridge and that would seem to correct it for a while.

It seemed to happen more when it was summer, i.e. warmer ambient temps. I went around and around with this for a couple of years. This year when it started acting up I had the, ahem, "genius" idea to plug it into the wall outlet directly instead of using the APC UPS. Bingo! It powers up correctly every time now. It seems the heat is affecting the UPS, not the computer.

I've tried various makes and models of UPS equipment and finally just got tired of the problems and expensive battery replacements. So I've changed to a surge suppressor instead of the UPS and haven't had any problems since. I don't like it much but I don't like any of the UPS units I've tried either.
 

blurpro395

Commendable
Sep 15, 2016
28
0
1,540


I've cleared CMOS multiple times, reset to defaults, it doesn't seem to fix the problem. I will try messing with the boot order carefully.
 

blurpro395

Commendable
Sep 15, 2016
28
0
1,540


I tried it, and to my surprise, it didn't work. Rather, it turned on my dad's PC from across the office :ouch: