Need help diagnosing problems making my gaming pc unusable overnight

evan2k7

Prominent
Jul 19, 2017
4
0
510
Hello! I'm trying to figure out an issue (most likely hardware related) that has rendered my high-end gaming PC seemingly unusable overnight. Here's a quick rundown of my specs:

OS: Windows 10 Home 64-Bit
MOBO: MSI Z170A Gaming M5
CPU: Intel Core i7-6700k @4.00Ghz
CPU Cooler: Corsair H00i v2
GPU: MSI GeForce GTX 1080 Gaming X
RAM: Ballistix LT 32Gb (2x16) 2400Mhz
PSU: Corsair RM 650i
Storage: Samsung 850 Evo 500Gb SSD, Seagate FireCuda 2Tb SSHD
Monitor: Acer Predator 27" 1440p IPS G-Sync, 144Hz

So I arrived home from work and booted up my PC (which I built roughly 7 months ago) for some afternoon gaming when I noticed that my games were taking an unprecedented performance hit. Games that my PC could normally run at 90-100fps were chugging along at 8-9fps. My first instinct was to check my components for dust buildup. After giving my parts a good dusting, the problem seemed to be fixed briefly (I shut it down when things seemed to be working), but the next time I booted the same problem persisted along with several other issues.

In addition to my games running incredibly slow (with choppy sound to match the frame-rate), my PC is now also randomly losing signal to the monitor. Sometimes this will occur for 10 or 15 seconds before reconnecting. Other times I need to restart the whole PC to do so. This occurs more frequently if I try to play a game or watch video, but it can also occur without any other notable trigger from my actions. General performance such as navigating Windows and browsing the web is also noticeably more sluggish. I've also noticed that the fans on my CPU cooler seem to be spinning abnormally loud for not doing any intensive tasks on my computer. My PC's normally rather quiet, but after a couple of minutes the cooler's fans are spinning loudly as if I'm playing a very resource intensive game (I should note that both my CPU and GPU are running at stock speeds). Finally, the computer is also susceptible to random shutdowns. Sometimes I will get a bluescreen with the Stop Code: WHEA_UNCORRECTABLE_ERROR, but most often the device will just shut completely off without warning.

At this point I'm pretty positive it's a hardware issue, but the fact that I can't get the PC to stay on for more than a few minutes is making it really difficult to test certain variables (fan speeds, temps, etc). Nothing had seemed out of the ordinary in terms of temperatures before these problems started happening. I'm currently working with an open case as well, so there shouldn't be an issue with heat. The issues on this PC have gotten so bad so quickly that I'm actually having to type this from a library computer (I can't rely on mine to stay on long enough to type a help message online). If anyone has any sort of help as to where I should be looking to fix this sort of issue, all leads would be greatly appreciated. This is my first custom-built PC and I'd like to do whatever I can to keep it functioning and optimal for as long as I can.
 
Solution
I think its overheating. Can be either the CPU or GPU. First of all, try reseting the CMOS by taking off the battery from the motherboard, wait for a few seconds and reinsert. Reseat your RAM's and check if they are inserted properly, dont apply too much force though; Run your pc with the bare minimums, like with only one ram and no GPU; use the integrated GPU. Unplug the power cord from the PSU and wait 15 mins before plugging everything back. Then turn on your computer without the external GPU, and see if any error occurs. If they still occur, change the thermal paste on your cpu, i would recommend the coolermaster mastergel maker nano or the MX4; dont use too much, just a sufficient amount will be enough.
Check the health and SMART...
Update your video drivers immediately and restart. Nvidia has a habit of somehow making old drives break everything ive had very similar problems here.

If that doesnt fix everything its probable you are having a gpu die on you, try putting it in another computer and testing it. if you have the same problems with the up to date drivers installed on that computer i would get it RMAd
 
I think its overheating. Can be either the CPU or GPU. First of all, try reseting the CMOS by taking off the battery from the motherboard, wait for a few seconds and reinsert. Reseat your RAM's and check if they are inserted properly, dont apply too much force though; Run your pc with the bare minimums, like with only one ram and no GPU; use the integrated GPU. Unplug the power cord from the PSU and wait 15 mins before plugging everything back. Then turn on your computer without the external GPU, and see if any error occurs. If they still occur, change the thermal paste on your cpu, i would recommend the coolermaster mastergel maker nano or the MX4; dont use too much, just a sufficient amount will be enough.
Check the health and SMART status of your HDD by using HDDSentinel (https://www.hdsentinel.com/download.php) and see if there are any errors, sometimes failing hard disk drives is the number 1 cause for such laggy issues.
 
Solution