Question CPU is being cooked by a 3080 ?

[Migs420]

I had a PC of my own for a while now with a Ryzen 5 3600 being cooled with a Corsair H150i Elite Capellix. Paired with a 2070 super, 32 GB of DDR4 at 3600, and an MSI X470 gaming pro carbon. I then recently bought a PC from a friend. His was a Ryzen 7 5800x with an X570 ASUS TUF MB and a 3080. I only swapped the MB, CPU, and GPU as they were the only parts better than in my build. However, whenever I use the 3080 the 5800x skyrockets every time to 100% pushing the temp high. Every game I've tried just makes the system shut off (I'm guessing cause the CPU is cooking?). When using my 2070 super though, the CPU operates at a normal temp and usage. Can someone help me I want to use the 3080 but it's super annoying that the system keeps shutting off. I don't think he has had any problems like this in the past.

 

[kurdtnz]

What is the make/model/age of your PSU?

 

[Migs420]

What is the make/model/age of your PSU?

EVGA 220-GA-0750-X1 Super Nova 750 Ga. It'll be about 4 years in September.

 

[SkyNetRising]

Every game I've tried just makes the system shut off (I'm guessing cause the CPU is cooking?).

RTX 2070 super is 215W card.
RTX 3080 is 350W card.
Also Ryzen 7 5800x uses more power than Ryzen 5 3600.
Your PSU probably can't handle transient power spikes, RTX 3080 is causing. That's why it's shutting down.

Upgrade your PSU to a decent 850W model.

What temperatures do you get on CPU and GPU during load?

 

[Migs420]

RTX 2070 super is 215W card.
RTX 3080 is 350W card.
Also Ryzen 7 5800x uses more power than Ryzen 5 3600.
Your PSU probably can't handle transient power spikes, RTX 3080 is causing. That's why it's shutting down.

Upgrade your PSU to a decent 850W model.

I dont know about the PSU but with the 3080 the 5800x would max out basically hitting 85°C then just turns off. I haven't seen it go higher without turning off. Would it be worth mentioning that the 3080 usage would be significantly lower than the 5800x during gaming? Then during load times like dropping in HellDivers while its loading the map the cpu will hit 100%.

 

[SkyNetRising]

I dont know about the PSU.

Typo. Meant GPU temperatures.

 

[Migs420]

Typo. Meant GPU temperatures.

Oh the GPU would have normal temps like 50-60°C. I have a screenshot of the temps and the 5800x was at 80°C and rising before turning off but the 3080 was at exactly 50°C while under load.

 

[faalin]

Does the computer fully shut down or turn off and then start back up again?


Your CPU should thermal throttle if its getting to hot, it should only shut the computer down if it cant keep the temps in check. I myself had a 2080 ti with a EVGA 750w G2 when gaming would act like someone would hit the rest button, the transient power spikes would trip the PSU and reboot the system. Most tech sites at the time were recommending 1000w PSU for 2080/ti and 3080's and 1200w for 3090's to handle the spikes.


If your wanting to stay with an ATX 2.0 PSU i would go 1000w if you move to the newer ATX3.0 PSU a good 850w will be fine. The newer standards for the ATX3.0 can handle the transient power spikes better.

 

[Migs420]

Does the computer fully shut down or turn off and then start back up again?


Your CPU should thermal throttle if its getting to hot, it should only shut the computer down if it cant keep the temps in check. I myself had a 2080 ti with a EVGA 750w G2 when gaming would act like someone would hit the rest button, the transient power spikes would trip the PSU and reboot the system. Most tech sites at the time were recommending 1000w PSU for 2080/ti and 3080's and 1200w for 3090's to handle the spikes.


If your wanting to stay with an ATX 2.0 PSU i would go 1000w if you move to the newer ATX3.0 PSU a good 850w will be fine. The newer standards for the ATX3.0 can handle the transient power spikes better.

It is bizarre how the system turns off. First, it won't reboot then, when I try to hit the power button to turn it back on it won't. The system will finally turn on with the power button when I switch the PSU off and on. The RAM's RGB will stay on though as if it's in sleep mode when it shuts off.

 

[SkyNetRising]

It is bizarre how the system turns off. First, it won't reboot then, when I try to hit the power button to turn it back on it won't. The system will finally turn on with the power button when I switch the PSU off and on.

That means - power shutdown was because of PSU protections kicking in.
This just double confirms, that a new higher capacity PSU is necessary.

 

[DSzymborski]

That means - power shutdown was because of PSU protections kicking in.
This just double confirms, that a new higher capacity PSU is necessary.

Yup, I'll affirm what SkyNet says here. This is classic faulty PSU behavior. This PSU was released at a time EVGA was costing down their PSUs and Andyson was a cheaper manufacturer than Super Flower. Normally this wouldn't be a problem, but the RTX 3080 and 3090 came in and the transients ate up many decent quality PSUs.

A PC is not going to shut down at only 80 degrees unless you're using a CPU from 2012.

 

[SkyNetRising]

Well - it's not exactly a faulty PSU.
It can work perfectly fine in a system with lower power demands.

 

[DSzymborski]

Well - it's not exactly a faulty PSU.
It can work perfectly fine in a system with lower power demands.

I meant faulty in the context the GPU is being used. But fair point!