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HAF-X 200mm fans blocking ventilation

post #1 of 7
Thread Starter 
Does anyone have any thoughts as to whether 2x200mm fans at the top of my HAF-X are blocking the air flow more than helping it in this setup:

DSC_0070.JPG

Underneath the radiator are 2 Panaflo medium (2100rpm) fans and one Yate-Loon high speed (2200rpm) fan. The radiator is a HWLabs GTX360, so it's got very high FPI, so probably a lot of resistance to the fans, hence why I put as high static pressure fans on it. I guess I'm just wondering whether the fans at the top are helping by moving more air or hurting by being lower pressure/lower flow than the bottom fans. Thoughts?
post #2 of 7
why not just get three 120mm fans for push pull? two panflows and one yate loon
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post #3 of 7
I dont think so. I have two 200MM in the top of my HAF-X. Running an EK 360 with 3 AP-15 fans pushing. I get good airflow and my 3 x 6970's (only blocks in my loop) never run above 50C under full load. (22-23 ambient).

I can feel a decent amount of airflow coming out the top.
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by VW_TDI_02;13810960 
why not just get three 120mm fans for push pull? two panflows and one yate loon

Cost mostly. I had these fans... I'm not looking for push-pull performance, I've kept those fans on top to just help move more air through the case. If I did anything, I'd remove the top two fans if they were impeding the flow of the lower fans/radiator. I'm happy with performance as is though since I'm at under 10c DeltaT with an overclocked 2600K (4.3ghz @ stock voltage) and two unlocked and overclocked 6950s (900/1375 @ stock voltage). Folding on GPUs and CPU overnight yields about a 9c DeltaT, so I'm still in the safe zone (which is an extraordinary feat for a 360 rad, if you ask me).
post #5 of 7
Thread Starter 
Quote:
Originally Posted by heresy;13811087 
I dont think so. I have two 200MM in the top of my HAF-X. Running an EK 360 with 3 AP-15 fans pushing. I get good airflow and my 3 x 6970's (only blocks in my loop) never run above 50C under full load. (22-23 ambient).

I can feel a decent amount of airflow coming out the top.

Wow that's fantastic that you don't have any heat problems with that load... Have you measured the DeltaT? (difference between water temperature and air temperature) That helps give a better idea of whether your system is overloaded or not, though if you're running like that with no problems then more power to you smile.gif I get in the mid 40s while looping 3dmark11, so that extra few degrees may be that extra 6970 kicking in. I'm surprised how well that radiator is disbursing the heat too!
post #6 of 7
I havent measured that yet. Not sure what the best way would be to measure water temp. I presume there are some in-line/plug style thermocouple probes available? (Or am I making it to complex - i.e. stick a thermometer in the fill port?).

Hopefully I will get good temps when I replace the EK blocks today with the Danger Dens.
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by heresy;13811460 
I havent measured that yet. Not sure what the best way would be to measure water temp. I presume there are some in-line/plug style thermocouple probes available? (Or am I making it to complex - i.e. stick a thermometer in the fill port?).

Hopefully I will get good temps when I replace the EK blocks today with the Danger Dens.

The easy one tongue.gif
I used a thermometer in the reservoir for awhile, but found that it was the same temps and a lot easier to just use an infrared thermometer on the end of my reservoir, so instead of opening up my case, unscrewing res, taking temp, etc, I can just pop open a front bay cover, point in the infrared thermometer, replace front bay cover.

I would measure before and after, though it shouldn't make a difference since the heat is the same and the difference in the efficiency of the transfer of heat should be minimal since I'm sure they're both good blocks with either the same or similarly spec'ed TIM.
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