GPU Temps decrease after removing my case's side panel, is it 100% caused by bad airflow ?

[bishopsdx]

I've got a Gigabyte 2080ti Gaming OC and a i7 9700k with a dark rock pro 4 in a Meshify C case. My CPU temps are normal (never gone above 60c), but GPU goes up to 85-87c when the glass side panel is closed. When I remove it, I get around 72-75c I've got 5 case fans, 4 intake and 1 exhaust... If I'm correct.

[Bartholomew]

27 minutes ago, bishopsdx said:

I've got a Gigabyte 2080ti Gaming OC and a i7 9700k with a dark rock pro 4 in a Meshify C case. My CPU temps are normal (never gone above 60c), but GPU goes up to 85-87c when the glass side panel is closed. When I remove it, I get around 72-75c I've got 5 case fans, 4 intake and 1 exhaust... If I'm correct.

 

Few photos would help (different angles towards back and front so can see if fan direction is okay); and if the gpu is mounted vertically or not etc.

 

Other than that its normal for temps to drop without side panel even with good flow, but how much depends on a number of things.

 

Edited March 8, 2020 by Bartholomew
Removed incorr3ct brainfart of me regarding psu fan direction

[bishopsdx]

Just now, Bartholomew said:

Few photos would help (different angles towards back and front so can see if fan direction is okay); and if the gpu is mounted vertically or not etc.

 

Other than that its normal for temps to drop without side panel even with good flow, but how much depends on a number of things.

 

Is the psu mounted correctly with fan down (and not up, blowing up heated air into gpu) for example.

PSU is mounted correctly, GPU is horizontal. Excuse the cable management, but I've been taking some things apart (after the temps have been acting weird) Here's a picture - I've reached the point where I genuinely hope I've done something wrong, instead of just having screwed up hardware.

[Bartholomew]

22 minutes ago, bishopsdx said:

GPU is horizontal. Excuse the cable management, but I've been taking some things apart (after the temps have been acting weird) Here's a picture - I've reached the point where I genuinely hope I've done something wrong, instead of just having screwed up hardware.

The cable mgt is fine for experimenting (and wont make much difference).

 

Id experiment with changing top mounted left (in picture) fan to to exhaust (and temporarily disabling to top mounted right fan), focussing more on front-to back flow without so much turbulence.

 

Try moving the lower front intake a litlle if possible, so it jets more flow under the gpu where the gpu intakes.if it fits id try moving the top mounted right to the front panel.

 

I think your hw is fine, just needs a little experimentarion on how to get the best flow thats all.

 

Do check that the fans are oriented the way you think (flow direction), usually theres a little arrow on the plastic somewhere (alternatively usually the exhaust side is where the frame is to hold the fan in the center, intake side is were yiu can move the center with your finger to rotate)

[Allyxxx]

If lowering the front lower fan and removing the front shroud has any improvements maybe try adding a bottom fan and removingHDD cage if possible 

[AngryBeaver]

1 hour ago, Bartholomew said:

The cable mgt is fine for experimenting (and wont make much difference).

 

Id experiment with changing top mounted left (in picture) fan to to exhaust (and temporarily disabling to top mounted right fan), focussing more on front-to back flow without so much turbulence.

 

Try moving the lower front intake a litlle if possible, so it jets more flow under the gpu where the gpu intakes.if it fits id try moving the top mounted right to the front panel.

 

I think your hw is fine, just needs a little experimentarion on how to get the best flow thats all.

 

Do check that the fans are oriented the way you think (flow direction), usually theres a little arrow on the plastic somewhere (alternatively usually the exhaust side is where the frame is to hold the fan in the center, intake side is were yiu can move the center with your finger to rotate)

Honestly with the size of this case... I would even consider going non-traditional and Flipping the flow. So top and rear top would be intake,  front and top front would be exhaust . The problem with that case is with the size and distance between the psu shroud and gpu it is creating a heat pocket that the air can't really circulate. So I wonder if flipping the flow around will allow the front fans to pull that heat out of that area. Your cpu temps would be largely unaffected, but it would make sure you are moving the heat away from the GPU.

 

*edit* that is why removing the panel works. As it stands right now that bottom right fan is just blowing the heat into that bottom corner by the PCI covers. The heat is just creating a vortex there since it doesn't really have much room to flow. So when you open the side panel the heat is about to splash against the back and escape out the side of the case. With the panel on it just stays there.

[Constantin]

2 hours ago, bishopsdx said:

You can add an intake bottom fan!

[Ralf]

5 hours ago, bishopsdx said:

GPU goes up to 85-87c when the glass side panel is closed. When I remove it, I get around 72-75c I've got 5 case fans, 4 intake and 1 exhaust... If I'm correct.

Removing the side panel or adding another intake shouldn't make that much difference, since I got told that airflow honestly don't matter much as long as the cooling itself can handle temps no matter. So an AiO for the gpu is the only thing that you can do.

[WoodenMarker]

It looks like you're using the stock case fans for front intake which aren't particularly powerful.

Are you able to shift the hdd cage back and use 3 front intake fans? I'd recommend using the NF-P12's for front intake in the lower positions. You can move the other stock fan to the top near the rear as exhaust.