Overheating gpu

[Lord_Dickus]

So a few months ago I made my first watercooled pc and everything came out great but I've been having high Temps for my gpu around 85 celcius. I've tried everything from new thermal pads (1.0) thickness, thermal paste, increasing pump speed, getting the air bubble out of the waterblock and even going as far as buying a new motherboard because I though it wasn't seating properly. Nothing seems to work, am I using the wrong thickness? Is my gpu just failing? Any tips would be greatly appreciated! 

[Skiiwee29]

if you're hitting 85c on water cooling you likely either don't have enough radiator space, or you have a water flow issue. Please post pictures of your setup. 

[DoctorNick]

20 minutes ago, Skiiwee29 said:

if you're hitting 85c on water cooling you likely either don't have enough radiator space, or you have a water flow issue. Please post pictures of your setup. 

This and list specs

[Lord_Dickus]

Rtx 2080 windforce oc

32 GB corsair vengeance 3200mhz

Evga 850 gold plus 

Asus ROG cross hair viii hero 

011D Distro plate G1

Ryzen 9 3900xt 

[Lord_Dickus]

I also have 2 rads if you couldn't tell. 

[GuiltySpark_]

It's possible you just have a faulty block with too high of tolerances. That or your VRM/Memory thermal pads are too thick causing the block not to make good contact with the core. Seen that a bunch of times. 

[Mick Naughty]

Bad contact. What are the idle temps?

Doesnt appear to be bled well with that large amount of air in the gpu block. 

[Lord_Dickus]

The idle Temps are fine sitting around 50ish celcius 

[Mick Naughty]

1 hour ago, Lord_Dickus said:

The idle Temps are fine sitting around 50ish celcius 

I wouldn’t call that fine. 

[-rascal-]

Air pocket in the GPU block?

 

Also, what thickness thermal paste have you tried?

You mentioned swapping to 1mm, what is the original thickness?

 

Also, WHICH Gigabyte WindForce RTX 2080 do you have?
Looking at the Heatkiller compatibility chart...

 

[Czargasm]

Looks like you have a problem with air bubbles to me. 

 

You are going to have to help bleed them out... which means while your computer is running (if you have control over pump speed put it on MAX as well) try SLOWLY leaning the case forward, backwards, left and right, like 45 degrees in every direction and you will see it working immediately. The bubbles will work their way out and into your reservoir. You also probably have a lot of air in your top rad.

 

Once you get all the extra air out it should work a lot better.

[Lord_Dickus]

11 hours ago, Mick Naughty said:

I wouldn’t call that fine. 

So I double checked my Temps. 34 for my cpu and 37 for my gpu. 

[Lord_Dickus]

11 hours ago, -rascal- said:

Air pocket in the GPU block?

 

Also, what thickness thermal paste have you tried?

You mentioned swapping to 1mm, what is the original thickness?

 

Also, WHICH Gigabyte WindForce RTX 2080 do you have?
Looking at the Heatkiller compatibility chart...

 

GV-N2080WF3OC-8GC That's the 2080 i have and i currently am using 1.0mm thickness and they were 1.5 before

[Lord_Dickus]

2 hours ago, Czargasm said:

Looks like you have a problem with air bubbles to me. 

 

You are going to have to help bleed them out... which means while your computer is running (if you have control over pump speed put it on MAX as well) try SLOWLY leaning the case forward, backwards, left and right, like 45 degrees in every direction and you will see it working immediately. The bubbles will work their way out and into your reservoir. You also probably have a lot of air in your top rad.

 

Once you get all the extra air out it should work a lot better.

Ill have to give that a try, i still dont know how to speed the pump up yet. ill have to do some research on that. Would it be in the bios or is there some kind of program i can control my pump with?

[Mick Naughty]

You’re mobo should have software. Gives you control of the fans and pump, assuming it’s plugged into the mobo. As well as many other things. 
 

Normally come on a disk you get them from the manufacturers website. 

[Czargasm]

Pumps are generally either controlled by PWM exactly like you would control a case fan, or they are dumb and just run full speed all the time and are connected to a molex only.

 

Bleeding will work either way, it just makes it easier when the speed of the water is higher. Good luck and report back!

[Lord_Dickus]

Sorry for the late response but I've been busy with other stuff but I took it apart again and I tried taking the vertical mount out and use the motherboard pcie slot, I bled the system, got rid of the bubble, sped the pump up and still nothing. I took apart the card again and it seems to be all good but I took pictures of the innards to see if any of you can notice something I don't.