GPU heating after installing liquid cooler

[Vaibhav Kakade]

Hi,

I have recently installed cooler master 120m liquid cooler. My cpu temperatures are reduced by 10 degrees on high load (earlier it used to be 70 degree C,now its 60 degree C).

But the problem is my graphics card is heating up a lot. Now the temperature of gpu on high load is 70 deg C after installing the cooler earlier it used to be 60 deg C. Because of this most of my games are lagging.

My air flow in cabinet is front two fan are in, two fans on radiator (one in front and one on back) are also in (as suggested in installation video on youtube), side fan of cabinet is in, top fan is out.

In BIOS there is no option to manually set cpu fan speed, there is a list of pre-defined speeds having 1400 rpm max. I have selected the option 'ignored' and selected turbo profile for cpu (still max 1400 rpm for cpu). The spec of 120m shows the max speed of 2400 rpm.

I have read that cooler master 120m very loud and makes lot of noise, but in my case its very quite. Is the pump working properly? Will it affect gpu?

Please help.

My PC specs
CPU - AMD FX 8150
GPU - nVidia GTX 560ti
MB - Asus M5A88-M
RAM- Corsair vengeance 8GB 1600mhz
Cabinet - Cooler master HAF 192
PSU - Corsair GS 600 W

 

[hans_pcguy]

Sounds like it could be restricted flow, incorrect plumbing or the heatsink not making good contact. Check everything again.

 

[Mac266]

Sounds like an airflow problem, because the radiator is now taking up a fan mount, so there isnt as much cold air coming in/ hot air being exhausted out.

 

[hans_pcguy]

Generally 120mm fans are very quiet compared to 80 or 90mm.

 

[Vaibhav Kakade]

Sounds like an airflow problem, because the radiator is now taking up a fan mount, so there isnt as much cold air coming in/ hot air being exhausted out.

Shall I make the back fan push out the air and top fan pull in? Though I have two fan slots at top of case, I have installed only one fan at top because the cooler is blocking one slot.

 

[Vaibhav Kakade]

Generally 120mm fans are very quiet compared to 80 or 90mm.

Yes I have 120mm fan.

As of earlier suggestion.
I am not sure that the airflow right as the back fan is pull in and top fan is push out. I have followed the instructions on youtube (installation of 120m liquid cooler) and they suggested this flow.
I have installed cooler directly on cpu. So the copper plate of cooler is directly in contact with cpu. I have also applied thermal paste.

 

[hans_pcguy]

Is the gpu on the liquid cooling system also? or just the cpu?

 

[Mac266]

Sounds like an airflow problem, because the radiator is now taking up a fan mount, so there isnt as much cold air coming in/ hot air being exhausted out.

Shall I make the back fan push out the air and top fan pull in? Though I have two fan slots at top of case, I have installed only one fan at top because the cooler is blocking one slot.

If you do that the air will just get sucked out as soon as it comes in lol, do you have any front mounts? actually what case do you have?

 

[hans_pcguy]

I assumed that you were cooling the Graphics card AND the CPU on the water system. It sounds like you only have the cpu on the water cooling. Then it is definitely and air flow issue. Just use common sense, that graphics card makes lots of heat. You have to get rid of that heat. Just look at the system and figure out how to get cool air to that graphics card. Generally you want a lot of EXHAUST fans and big areas of vent, air flow holes to let lots of fresh air in. Remember though lots of air means lots of dust also. If you move a lot of air into a computer you will have to clean it often or the fins will plug up quickly.
I never have fans blow in, I just use exhaust fans and make holes in the places where cool air needs to come in. I do a lot of case modding. I have metal hole saws to cut more holes for more fans if i need them and i cut holes for fresh air.

 

[hans_pcguy]

If I were you I would think about putting a water block on the graphics card also. Then you won't have to worry about air flow inside the case.

 

[Vaibhav Kakade]

I assumed that you were cooling the Graphics card AND the CPU on the water system. It sounds like you only have the cpu on the water cooling. Then it is definitely and air flow issue. Just use common sense, that graphics card makes lots of heat. You have to get rid of that heat. Just look at the system and figure out how to get cool air to that graphics card. Generally you want a lot of EXHAUST fans and big areas of vent, air flow holes to let lots of fresh air in. Remember though lots of air means lots of dust also. If you move a lot of air into a computer you will have to clean it often or the fins will plug up quickly.
I never have fans blow in, I just use exhaust fans and make holes in the places where cool air needs to come in. I do a lot of case modding. I have metal hole saws to cut more holes for more fans if i need them and i cut holes for fresh air.

Thanks for the suggestion. Ok I will figure out how to pull the fresh air in. I guess I may need one more hole on case to pull fresh air on gpu.

 

[Vaibhav Kakade]

Sounds like an airflow problem, because the radiator is now taking up a fan mount, so there isnt as much cold air coming in/ hot air being exhausted out.

Shall I make the back fan push out the air and top fan pull in? Though I have two fan slots at top of case, I have installed only one fan at top because the cooler is blocking one slot.

If you do that the air will just get sucked out as soon as it comes in lol, do you have any front mounts? actually what case do you have?

I am using cooler master HAF 912 cabinet.

 

[Mac266]

if you go to her: http://www.coolermaster-usa.com/landing/haf912/home.php?page=cooling

you see your case and the way they say to have the fans.

first up, the side panel fan, if you have it, should be an exhaust, to suck out the hot air from the GPU.

try to mount your Radiator on the rear fan mount, and configure it to suck air in.

 

[Vaibhav Kakade]

I have been trying many trial and error methods to rectify the air flow for few day. The best suited air flow for my machine seems to be :-
Front 2 fans intake, rest all exhaust.

Thanks a lot guys for your suggestion. I really appreciate it.