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Dodgy Corsair AIO?

scooby81
By scooby81
in Troubleshooting
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53 minutes ago, AbydosOne said:

In my experience, sitting on the BIOS screen actually uses a decent amount of CPU (for some reason, probably related being a bare minimum system) so that might be biasing the values. Check from inside an OS?

You were absolutely correct. Booted into Ubuntu and fired up a monitor application.

 

All four cores are running 26c or less

 

That will teach me for being lazy and relying on the BIOS.

 

Stupid graphical BIOS.

Thanks again.

:)

 

 

Posted

Hi all,

 

I bought a used Corsair H80 and have tested it with 2 CPUs as I think the temps I am getting are too high.

 

The motherboard is an Asrock Z270M Pro4:  https://www.asrock.com/MB/Intel/Z270M Pro4/index.asp

The AIO is a Corsair H80: https://www.corsair.com/uk/en/Categories/Products/Liquid-Cooling/Hydro-Series™-H80-High-Performance-Liquid-CPU-Cooler/p/CWCH80

Thermal Paste is Arctic MX-4

 

I am testing using the BIOS screen which displays CPU and Motherboard temps - so this is basically idling doing nothing


I have re-applied the thermal compound and re-fitted the AIO twice for each CPU.

 

Temps

Case is open during test

1 front intake fan

AIO Fans (X2) (exhaust) speed 2108 RPM

Intake Fan (X1) (intake) speed 2272 RPM

 

i5-7600K                      51c - 52c

Celeron G3900            27.5c - 28.5c

 

I've let the AIO run for circa 10 mins each time

The radiator feels cold to the touch

The pipes feel neither cold or warm

 

Any opinions?

 

Thanks

 

 

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Seems like it's performing just like you'd expect any 120mm AiO to perform... those aren't really good you know? I believe if the pump died it'd be even worse... but I can't really tell you much besides that you should always go air cooling.

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Most advice on here that I have read say AIOs offer better cooling vs air cooling, but with more noise. 

 

I think the 7600K temps are too high for idle, based on tests I've seen.

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20 minutes ago, scooby81 said:

Most advice on here that I have read say AIOs offer better cooling vs air cooling, but with more noise. 

 

I think the 7600K temps are too high for idle, based on tests I've seen.

well that depends on the aircooling

you have a 120 rad si it should be about the same as a normal like dark rock cooler

a 240/280 is slightly worse than something like a d15 or darkrockpro

and a 360 will normally a bit better than them

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54 minutes ago, scooby81 said:

I bought a used Corsair H80 and have tested it with 2 CPUs as I think the temps I am getting are too high.

Make sure the fan header the pump is connected to is set for 100% fan speed. Or better yet, plug it into a dedicated AIO_PUMP header (if you have one). If it has USB, plug that in too.

 

In my experience, sitting on the BIOS screen actually uses a decent amount of CPU (for some reason, probably related being a bare minimum system) so that might be biasing the values. Check from inside an OS?

 

12 minutes ago, scooby81 said:

Most advice on here that I have read say AIOs offer better cooling vs air cooling, but with more noise.

AIOs are generally quieter for any given cooling capacity, especially in small or unorthodox cases.

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Spoiler 
                           ┌─────────────── Office/Rack ────────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch 8-60W ─┬─ UniFi Switch Flex XG ═╦═ Veda (Proxmox Virtual Switch)
(500Mbps↑/500Mbps↓)                             UniFi CloudKey Gen2 (PoE) ─┴─ Veda (IPMI)           ╠═ Veda-NAS (HW Passthrough NIC)
╔═══════════════════════════════════════════════════════════════════════════════════════════════════╩═ Narrative (Asus USB 2.5G NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ──────────────────────────────────────────────────────┐
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═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
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Thanks for the advice all.

 

I tried one last thing - basically trying to apply the thermal paste to the AIO heatsink as closely matched to how it comes when new.

 

For the H80 its like this

- so I applied it just like that, thin layer.

 

Exactly same temps on the 7600K.

 

Concluding that my / the H80 either sucks at cooling this CPU.

 

I haven't seem any posts where CPUs work fine but have a fault which results in constantly higher operating temps.

 

Will look at other AIOs - 2400M and brand new me thinks :) 

 

 

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23 minutes ago, AbydosOne said:

Make sure the fan header the pump is connected to is set for 100% fan speed. Or better yet, plug it into a dedicated AIO_PUMP header (if you have one). If it has USB, plug that in too.

 

Thanks - no AIO header on my board, so using CPU FAN header for the unit.

The two H80 fans are then plugged into the H80 fan controller 

My intake fan is set to CHASSIS FAN 1

It seems the AIO controls the fans itself - changing fan speeds in BIOS doesnt work

 

23 minutes ago, AbydosOne said:

 

In my experience, sitting on the BIOS screen actually uses a decent amount of CPU (for some reason, probably related being a bare minimum system) so that might be biasing the values. Check from inside an OS?

 

Good shout - I'll make a USB boot disk and check it out

 

23 minutes ago, AbydosOne said:

AIOs are generally quieter for any given cooling capacity, especially in small or unorthodox cases.

 

Cool. Suppose its all down to the fans and their speeds 

 

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53 minutes ago, AbydosOne said:

In my experience, sitting on the BIOS screen actually uses a decent amount of CPU (for some reason, probably related being a bare minimum system) so that might be biasing the values. Check from inside an OS?

You were absolutely correct. Booted into Ubuntu and fired up a monitor application.

 

All four cores are running 26c or less

 

That will teach me for being lazy and relying on the BIOS.

 

Stupid graphical BIOS.

Thanks again.

:)

 

 

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