GPU temp increased in custom loop

[TheNaitsyrk]

So I'm running 3x 480mm 60mm thicc radiators in a loop with Revo D5 pump (all from EK).

 

When I ran it for 1st and 2nd day, the 1st GPU wouldn't go past 35C / 36C and the 2nd one would be 39/40/ and rarely 41C.

 

Now just over a week and a half later the GPUs are running slightly hotter. 1st one being about 40/41C now and the second one reaching 45/46C.

 

Nothing was changed, but I noticed one thing. I had to top up the res because some bubbles came out so I topped it up, and now after topping up 4 days ago, the level went down a little bit further, by maybe 3mm.

 

I checked for leaks and there are none.

 

Any ideas why temps went up by 5C - / +?

[Bananasplit_00]

room temp changed

[TheNaitsyrk]

Just now, Bananasplit_00 said:

room temp changed

I actually tested the PC in my office, and temps were 35/40 on the GPUs. Brought it home and it was exactly the same.

 

1.5 week later I decided to try again and temps went up, so I'm not sure if that's it?

[Bananasplit_00]

Just now, TheNaitsyrk said:

I actually tested the PC in my office, and temps were 35/40 on the GPUs. Brought it home and it was exactly the same.

 

1.5 week later I decided to try again and temps went up, so I'm not sure if that's it?

is the office entirely temp controlled to within 5C? if so then there might be a little air in the GPU blocks i guess

[TheNaitsyrk]

Just now, Bananasplit_00 said:

is the office entirely temp controlled to within 5C? if so then there might be a little air in the GPU blocks i guess

Yeah I was thinking same thing, but I guess it was wiser to ask on the forum 1st. Get 2nd opinion. I tried running pump at full speed to get some out. I might need to tilt the PC a bit to get it all out.

[Bananasplit_00]

Just now, TheNaitsyrk said:

Yeah I was thinking same thing, but I guess it was wiser to ask on the forum 1st. Get 2nd opinion. I tried running pump at full speed to get some out. I might need to tilt the PC a bit to get it all out.

tilt it and lightly knock on the cards around the GPU area, might help if there is any air in there

[TheNaitsyrk]

Just now, Bananasplit_00 said:

tilt it and lightly knock on the cards around the GPU area, might help if there is any air in there

Pic of temps within installing a loop.

 

Then today I had 40/47c and the (same as overclocked before)

And the one with 51c is overclocked.

[Shimejii]

49 minutes ago, TheNaitsyrk said:

So I'm running 3x 480mm 60mm thicc radiators in a loop with Revo D5 pump (all from EK).

 

When I ran it for 1st and 2nd day, the 1st GPU wouldn't go past 35C / 36C and the 2nd one would be 39/40/ and rarely 41C.

 

Now just over a week and a half later the GPUs are running slightly hotter. 1st one being about 40/41C now and the second one reaching 45/46C.

 

Nothing was changed, but I noticed one thing. I had to top up the res because some bubbles came out so I topped it up, and now after topping up 4 days ago, the level went down a little bit further, by maybe 3mm.

 

I checked for leaks and there are none.

 

Any ideas why temps went up by 5C - / +?

Yeah Water Has Equalized fully and absorbed all temps from cards and adjusted for Room temp andsuch. Temps can vary by that much pretty easily just based off Thermal paste, Cards Warming up and down, Room Temperature, Certain heat pockets in your room, Having it running for longer and all that. 5C isnt something to worry about honestly.

[TheNaitsyrk]

2 minutes ago, Shimejii said:

Yeah Water is Starting to Equalize fully and absorbed all temps and adjusted for Room temp, Hardware and such. Temps can vary by that much pretty easily just based off Thermal paste, Cards Warming up and down, and all that. 5C isnt something to worry about honestly.

I know, it bugs me though. Using Thermal Grizzly also, and it's been there 4 months or so so yeah. It could be it but I don't know.

 

I also tested with all fans running full tilt and pump running full tilt too but that doesn't change anything really.

[Shimejii]

8 minutes ago, TheNaitsyrk said:

I know, it bugs me though. Using Thermal Grizzly also, and it's been there 4 months or so so yeah. It could be it but I don't know.

 

I also tested with all fans running full tilt and pump running full tilt too but that doesn't change anything really.

Dust or buildup on the outside, or something blocking airflow? Only other thing that could have done it. 

[TheNaitsyrk]

Just now, Shimejii said:

Dust or buildup on the outside, or something blocking airflow? Only other thing that could have done it. 

Dust could be it, the PC is in the same spot.

 

I might reinstall the entire system (I have to since new NVMe arrived) and some program could perhaps cause the temps to go up...

[TheNaitsyrk]

3 minutes ago, _StrikE_ said:

Its like @Shimejii has said, you shouldn't take the first temps you see when testing at face value, as the water equalizes and absorbs properly all the temps, plus the paste and various heat transfers settle to their normal transfer rates/values sort to speak, you will see true proper temps, it seems honestly all in your mind, if temps keep degrading yes then there might be a problem, but what your seeing now is your actual temps now that everything has settled down and all the various connections have become accustomed to transferring hit between them.

Tested for about 4 days, temps was the same. PC was running 12H a day. It's just now, 2 weeks later I decided to revisit.

 

It could be what you are saying too tbf.

[Mick Naughty]

Crap in the loop. Bet theres something in a jetplate. 

[TheNaitsyrk]

51 minutes ago, Mick Naughty said:

Crap in the loop. Bet theres something in a jetplate. 

Block looks fine actually. I flushed the rads with 5L of de-ionised water before doing the loop.

[Mick Naughty]

The cpu. When my build was new I had a temp issue and the cpu was clogged. This affecting series temps and didn't think about it till I built it parallel. Limiting flow and lowering speed of what made it through. Cleaned it and everything back down to normal. 

[TheNaitsyrk]

Just now, Mick Naughty said:

The cpu. When my build was new I had a temp issue and the cpu was clogged. This affecting series temps and didn't think about it till I built it parallel. Limiting flow and lowering speed of what made it through. Cleaned it and everything back down to normal. 

CPU is same as GPU. Not clogged.

[Mick Naughty]

4 minutes ago, TheNaitsyrk said:

CPU is same as GPU. Not clogged.

So all the tests were done in game as well? Cpu temps aren't gonna be consistent in synthetic, clogged or not.

[TheNaitsyrk]

1 minute ago, Mick Naughty said:

So all the tests were done in game as well? Cpu temps aren't gonna be consistent in synthetic, clogged or not.

CPU temps are same. It's not the CPU temps I'm concerned about.....

[Mick Naughty]

2 minutes ago, TheNaitsyrk said:

CPU temps are same. It's not the CPU temps I'm concerned about.....

Yea that's not what im saying. But its that's the case, everything is perfect, nothing wrong what so ever. 

[TheNaitsyrk]

11 hours ago, Mick Naughty said:

Yea that's not what im saying. But its that's the case, everything is perfect, nothing wrong what so ever. 

Well, not perfect because temps went up by 5C without me doing anything. Same PC build, same case placement, same ambient room temperature, same fan configuration, same pump speed, same room.... Nothing is changed.