New 5950x build instant overheat.

[goldenbrown05]

Evening all.

I've just put together my first AMD build.

Previously I was running a 8700k with a 1080ti so I decided to splash and upgrade.

Ryzen 5950x
Crosshair Dark Hero
G.Skill Ripjaw 2x16gb 3600 ram
RTX 3080ti

I have just finished building the rig and turned it on for it to overheat instantly and power down.
I checked the AIO had full contact and the thermal paste was fully covered over the chip.
All fans are running.
I am still running a H100i V2, I know it's not the best AIO but could it cause an instant overheat.
I mange to get into bios and the pump fan is running. I have it plugged into the CPU_fan header over the AIO_pump header.


Am I mssing something here as the temps shoot up to 90+ and the rig ***** off, I'm at an utter loss.

Any help would be appreciated?

Thanks.

 

[goldenbrown05]

Usually pump should be at 100% power and in most cases on the AIO/Pump header, the CPU one is usually the one you plug your fans into. It could be that this is confusing the motherboard.
Is the USB cable attached to the header?

I hope you cleaned and redid the thermal paste after you checked it....

Any bios error lights/codes showing after the shutdown? Is the bios at stock settings?

The last time I had a thermal shut down, I'd forgotten to plug in the power cable to the pump on my AIO...

As to whether it could it be the cooler not being strong enough.... potentially yes, depending on age it might have lost enough fluid where it's just not able to cope with the 5950x.

Thanks for the reply.

To address your points;

I have tried it on both the CPU fan and AIO Pump headers with the same result.
All the thermal paste is brand new, new mobo, new CPU new paste.

No error at all all being showing on the mobo.
However it is showing my m.2 but it will not show it as a bootable option. I'm not sure why it's doing this.

cooler is about 3 year old. I'm not sure whether I should nip out tomorrow and pick up a air cooler to test before I start sending parts back.

 

[goldenbrown05]

Okay so in all and complete honesty I have no idea how I managed this, but I did.

Initially I could not get passed bios, it was showing/reading the M.2 which was my boot drive however it was not showing it as a drive to boot from, this is when the overheating was taking place, I could last maybe 45 seconds to a minute in bios before the system would shut itself off.

I unplugged some headers and plugged them back in.
1 of the SSDs SATA cable was lose around the back so I adjusted that and booted again..
I had a bootable drive!! As soon as, and I mean as soon as I got passed bios all my temps dropped and I am now idling between 40°/60° (which I expected with the sub par cooler)
I really couldn't tell you what was causing it or why it fixed itself getting passed bios.
I'm running DOCP fine and tested running some extremely intensive games (CP2077 max settings & Star Citizen) both of which brought it to around 85° not the best but indicative of needed a uprated cooler.

 

[goldenbrown05]

Did you peel the plastic off the face of the cooler before putting on to the

I've been using it for 4 years so I would hope so .
Yeah it's definitely off.