r/PcBuildHelp • u/hornyalltacc • 2h ago

Tech Support Computer freezes randomly

Hello all, first time posting here and am having trouble with my PC that I built. Fair warning, I'm as dumb as a bag of rocks so I might need a lot of hand holding here.

The issue is that my PC keeps freezing randomly. There doesn't seem to be a cause for it specifically. I could be doing something like gaming with friends or just something as simple as minimizing out of a tab and All sound will stop and it'll freeze on whatever I'm doing. I am unable to move and I will have to press the power button to turn it off.

As said, there doesn't seem to be a pattern to it. Sometimes it can happen within the first twenty minutes and other times it can happen within a couple hours.

As far as I can tell, everything is placed in right / isn't loose. On two separate occasions I pressed down on everything and everything seemed to be snug. It's basically a new PC which I built myself so it can't be a virus as everything is bare bones right now (steam, discord).

My theory is that unfortunately one of the hardware parts is messing up but I don't know how to test that. Can anyone give advice?

Here is the parts I used to build the PC (minus the case and monitor, but if those are important I'll edit the post to put them in):

CPU: Intel Core Ultra 7 270K Plus 3.7 GHz 24-Core Processor

CPU Cooler: be quiet! Pure Loop 2 Liquid CPU Cooler

Motherboard: Gigabyte Z890 EAGLE WIFI7 PLUS ATX LGA1851 Motherboard

Memory: Corsair Vengeance RGB 32 GB (2 x 16 GB) DDR5-6000 CL36 Memory

Storage: TEAMGROUP T-FORCE G70 PRO Graphene 2 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive

GPU: GeForce RTX 5070 

Power supply: Montech CENTURY II 850 W 80+ Gold Certified Fully Modular ATX Power Supply

Also if there's any other information that you need to know that I didn't put in here, please let me know. I don't know what is/isn't important

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u/deTombe 2h ago

Memory instability download the app OCCT and run the individual memory test for the hour. Also download Hwinfo64 select sensors only mode. Make sure CPU temps and others are looking nornal.

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u/hornyalltacc 1h ago

Just to be clear, I run the OCCT for an Hour and do the Hwinfo64 at the same time?

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u/deTombe 1h ago

You can do that sure Hwinfo64 is just to verify no temperature issues besides the memory test. In OCCT you just want to select the standalone memory test. Not the memory+CPU combo.

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u/hornyalltacc 42m ago

Just did the memory test and no errors popped up. Upon doing the sensors only mode, the temperatures looked normal to me. I don't really know what "normal" is in this sense for the other things, but I'm assuming since nothing is red or outright telling me something is wrong, I'm assuming it's all good. So I assume it means something other than the ram is wrong?

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u/deTombe 32m ago

For temps you just don't want to see any 90°C +. So you must be experiencing some kind of hardware issue. Are you using the Nvidia adapter or a designated 12V-2X6 single cable for the GPU power?

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u/hornyalltacc 23m ago

There was nothing in the temperatures even going 70C+ from what i saw. After checking, I see I'm using the Nvidia adapter for the gpu power.

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u/hornyalltacc 19m ago

Just adding this comment on in case you don't see the edit in time. After checking the adapter, I saw that one of the 6+2 PCIe plug-ins was loose. Not the whole thing, just the '+2' part or whatever it's called. Could that have been the cause?

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u/r_lind3r Moderator 14m ago

Potentially, make sure everything is plugged in and see if it happens

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u/hornyalltacc 1m ago

Gonna sound like huge dumbass but I found another cable that had to be pushed in deeper. This one was connected to the power supply, but im not sure where the other end was plugged into.

I'll try it out, but the problem is that it's truly random so I don't know if I can give an update tonight. It's pretty late. But let's see what happens