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.

 

[lsg1r]

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.

 

[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.

 

[eddiew]

overheat instantly and power down.

Ok, questions; how instant is instant? And if we're really talking a matter of seconds, how do you know it was an overheat issue?

I once forgot to plug in my pump and got all the way through installing windows and installing a temp display before I realised it was "quite warm". Even as just a block of copper, it does still dissipate heat and you should get a few minutes out of it at least.

However there was a bios setting something like "shutdown on CPU fan fail" which I originally had to disable, because the board wasn't interpreting the pump as a fan that was spinning. If that's your problem too, you might be able to plug a case fan into the CPU fan header and trick it into starting.

Edit: also, don't forget a fingertip test! Is the water block warm? Is the back of the board behind the socket warm? (It certainly was the day I forgot the power the pump )

 

[lsg1r]

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.

The m2 might not show as bootable until formatted etc but if you have a spare sata drive laying around you could take out the m2 just to make sure it's not the part of the issue. I do know my 5950x fans/load ramps up when heavily working the m2 drives I have so it's a possible area of issue.

As to an air cooler, personally I bought a cheap air cooler anyway (it's supposedly good enough for the 5950x) to have on hand in case my aio gets issues (been there before), so it might not be a bad idea to have one on hand anyway.


As above though, even just the aio turned off should get you to windows, mine did when I forgot to plug it in. Actually does your bios have thermals etc, I know my msi one does... what is it saying in there if you do.

 

[Jay85]

Im 99% sure it will be the pump, there's probably a trapped air bubble somewhere. Turn the system on and tilt the case up and down, backwards and forwards to try and dislodge it.

I had the exact same symptoms before with an AIO on my dads build. Panic ensued until i realised it was the pump. It was a small ITX case though so made tilting the case very easy.

 

[Robert896r1]

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.

Enable CSM in bios for the M2.

 

[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.

 

[lsg1r]

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)

Honestly the 40° range at idle (package temp via hwmonitor in windows) is about the same as what I'm getting on a ek basic 360 aio (with al120 fans) without doing any pbo etc, load will top out around 82° in my case for reference. Today is pretty hot as well which doesn't help.

You likely need to play around with pbo etc like I do if you want to bring down temps/increase performance.

 

[subbytna]

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

 

[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.

 

[welshrat]

For what its worth, I am running a H100i 280mm radiator, 2 fans on a 5900X and after some configuration for a custom fan curve in Corsair IQ I get very good temps when gaming (around 68 Degrees in BF2042), I see the occasional spike for a second or so on one or two cores to around 80 Degrees but never sustained.

I run an AMD RX6800 which doesn't get that hot, I know the 3080ti get hot though. Are your fans pulling from the air outside through the radiator or are they pushing warm air from in the case through it ?