New PC turns off without any apparent cause?
New PC turns off without any apparent cause?
Hello, this is my first time posting as I'm about at my wit's end here trying to salvage a trip and payment to the local computer shop.
So background is that I purchased all the parts from a local computer chain and had paid them the fee to get everything built as a present to myself as my old pc was getting old and I did not want to deal with what to upgrade and opted for a whole new build.
The specs for this build is as follows below:
CPU - 7800X3D
GPU - MSI Ventus 3x 4070 12GB
MOBO - Gigabyte Aorus B650M Elite (mATX)
RAM - Kingston Beast DDR5 5200 16GBx2
Storage - WD SN850X NVMe 2TB
PSU - MSI 8500w ATX3 pcie5 MPG PSU
CPU Cooler(?) - MSI MAG CORE LIQUID P240
Case - CoolerrMaster MasterBox NR400 TG mATX
OS - W11 Pro
This current new build is exactly 2 months old to the date of when I brought it home back from the store. So my problem is that under specific scenarios, my PC shuts down! It full crashes as if I had manually powered off via the button, with no BSOD no error no nothing. Generally during gaming but it has done so as I was installing drivers or even just browsing the web. I've made sure to have ALL my drivers for everything including the major ones like GPU, CPU and BIOS updated as well. Peculiarly enough, it seems to be specific games (some not so popular ones too) or triggers because it always happens around the same time, let me give a handful of examples:
NFS:Heat - Before I cross the finish line in the tutorial/starting race, then subsequently when I boot again to try, it might not even get past main menu. Now peculiarly I've ran it for a whole day while I was at work once I got into the game and it's fine, but no input just as if I had walked away while ingame.
Battlefield 1 and V - Sometimes as I load into the game or on main menu
Diablo 4 - VERY random but it does happen, can be 5 minutes in or after 8 hours
Remnant 2 - in a specifc spot in N' Erud, near the space zombies, and during cutscene with the alien in the space pond
Snowbreak Containment Zone - PC Client, specifically only so far when I try to load into Yao's daily fragment grind mission(?)
Valorant - Generally fine out of the like 20 hours I've played but shut down once after I booted it
Deus Ex Mankind Divided - Upon loading into tutorial mission after taking a few steps
So these are just a few examples that I can remember at the moment. I know a lot of people upon a quick google search (mostly reddit) will say that it's 5000% the PSU but I don't buy it. I will now list all the thing's I've personally done to try and fix the problem:
Swapped out a PSU from my old system and connected to the problem unit. Different brand same wattage, still shut down
Reseated GPU and Ram
Made sure water cooler radiator mounted corrected (not wiggly or loose)
Friend told me about changing PBO settings, the something curve, in BIOS which I changed it to negative and 30 count which didn't work. Then I changed the number to 50 and it wouldn't boot so I cleared CMOS
Tried a new NVMe to make sure it wasn't boot drive
Ran FurMark for 2 days straight no problem
Ran Prime95 to test CPU for a few hours no problem
Now I have some notes to share as well, not sure where to put them:
I've not overclocked anything in my life, unless you count changing the PBO curve setting as my friend suggested
Ran Cyberpunk2077 benchmark on maxed settings raytraced 1440p for a whole day and no crash, and GPU temps have never been higher than 70°C I believe. Which is why I don't believe it's a GPU Issue
Ran Diablo 4, NFS: Heat, Honkai: Star Rail, and Black Desert Online all maxed out settings all day simultaneously with no shutdown
CPU temps are never above 80°C. Ran Prime95 and only then during that stress test I hit 89°C to 90°C
Played WoW with many addons during a Mythic Raid no problem with all spell effects and players
Put the new 4070 in old rig replacing a 1070ti with no problems or shutdowns so once again I don't think it's GPU problems
So now, I guess the question is if it's my CPU or motherboard is the part of failure, and if it's just faulty hardware in some part or incompatibility which I didn't research enough because of my own negligence. Not sure if this is enough or the right information to have given but it's been very frustrating being seemingly OK for a brief moment of reprieve just to go and start up a game only to have the room fall dark and silent as the system turns off without warning or error.
If it seems like I should just send all my parts to RMA or repair then so be it, or if I need to buy more compatible parts I guess I will have to.
This is my tin foil
Spoiler:
conspiracy theory
conspiracy theory but what if the people I paid money to build my pc sabotaged it because I didn't buy their protection warranty plan lol.
Either way of course if I could figure this out now rather than bring it in for them to RMA it for me and return it around 6-12 weeks would be amazing
Thanks so much in advance if there is any input!!
Just a quick question... Is it connected to a battery backup or UPS? What type of surge protector is it using? Are there other devices plugged into the same surge protector, and are they having problems?
I only brought this up because I had an issue with a customer who was using an outdated surge protector. They were facing similar problems, like their PC shutting down when the surge protection kicked in. After some testing, it turned out the PC was triggering the surge protection on the power strip.
I own an old surge protector connected to the wall plug without any backup battery or similar features. It’s likely from about ten years ago, though I haven’t used it much personally. I’m uncertain because other devices like monitors and routers work fine with it, while sometimes it fails completely. Occasionally it shuts down instantly, and other times I can be idle for more than half a day without issues—seeming to depend on certain game conditions. Some games run perfectly during idle, while others cause problems. I’m not sure if it’s worth returning it or replacing it with a new motherboard and components, thinking it might be faulty.
Check for additional power supplies with higher wattage capacity.
It's probably either the PSU or the power strip. Try using a different power strip.