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post #51 of 72
Quote:
Originally Posted by Aleckazee View Post

I'll give that a shot. What if I also flip the fan on the psu so that it is pulling cool air in from the back and into the case and then have the fan on the rad pulling that air out the front. Or is that a bad idea? Do I want better airflow or do I want to try and get each fan to be getting it's own cool air?
I've been testing the temp differences between the F12 and P12 in different configurations but I have a bit of a problem. I've been testing it running prime95 and MSI Kombustor Burn-In. The problem is that sometimes both the gpu and cpu run under full load, but a lot of the time the cpu is under full load but the gpu is only working 30-60%. I tried changing priority in task manager and ran kombustor in real time (also tried high) and prime95 to low but that didn't do anything. Is there something wrong or is there a way to make both run under full load at the same time?
I managed to do a few tests, I'll post them all when I'm done but I'll just say that I ran the P12 at 1300rpm in pull and my cpu and gpu was running in the high 70s after 40min under load, My entire case was really hot, I took the cover off and it was like a toaster in there and I noticed the tubing went really squishy. It was nice to see it cooled down pretty quick tho.

hmm i cant believe i missed all these questions sorry mad.gif but anyways If I understand your problem right it is that you have your rad pulling in cool air that is turning super hot then you have that hot air going though your psu and out the back? If that is the case I would suggest try having you rad fans pull air out of the case (already mentioned i think) check the temps and if they are the same leave it like that than you would have your psu exhausting still. I dont know about flipping the fan inside the psu I think it is better to leave it the way it is because it cools off all the fun stuff inside it better this way however if it is left the same way then you have a negative pressure system which I personally have never been a fan of. This said you do have vents on the side of your case (i think) and those would just take in a good chunk of air so it would still have a bit of air flow over the board. I would have to say this is the best situation for you. Hope this helps thumb.gif
    
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post #52 of 72
If you're getting high 70s with the rad as cold air intake, then I'm not sure that making the rad try to cool anything with hot exhaust air is going to help temps. (Because high delta cools most, even if there's some feedback.) But as has been said, it's always good try different things to make sure you have the optimal setup.

Can you tell us temps of CPU alone, GPU alone, and both CPU+GPU with cover on. Then do the same 3 measurements with cover off. After that try with cover on / front fan exhaust.
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post #53 of 72
Quote:
Originally Posted by Aleckazee View Post

I'll give that a shot. What if I also flip the fan on the psu so that it is pulling cool air in from the back and into the case and then have the fan on the rad pulling that air out the front.
That seems like it would work to me, providing you don't have any other fans pushing out air out the back of the case. It doesn't appear that you do, since your video card is cooled by water.
Quote:
Originally Posted by Aleckazee View Post

My entire case was really hot, I took the cover off and it was like a toaster in there and I noticed the tubing went really squishy. It was nice to see it cooled down pretty quick tho.
I wouldn't be surprised if this is because of how you have your radiator fans set up. Most people have their radiator in the back of the case, and thus, push the air out the back, and this issue is avoided. You kept your fans in the same direction, but put them in the front of the case, but this pushes all the hot air into your case, hence, your problem. I bet if you swap them as described above, where your PSU is pulling air into the case, and radiator pushing out the front, it'll be much better.

The one thing I haven't accounted for is the heat your Power Supply will generate, although surely it would not be as much as what your radiator generates, so either way you should be better off.
Quote:
Originally Posted by golfergolfer View Post

This said you do have vents on the side of your case (i think) and those would just take in a good chunk of air so it would still have a bit of air flow over the board.
Yep, this here. It would be best if both your PSU and Rad fans are pushing air out of the case, but that's only optimal if you have a lot of vents, and/or another fan bringing air in.
Edited by SpyderMS - 9/29/12 at 3:15pm
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post #54 of 72
Thread Starter 
Quote:
Originally Posted by WiSK View Post

If you're getting high 70s with the rad as cold air intake, then I'm not sure that making the rad try to cool anything with hot exhaust air is going to help temps. (Because high delta cools most, even if there's some feedback.) But as has been said, it's always good try different things to make sure you have the optimal setup.
Can you tell us temps of CPU alone, GPU alone, and both CPU+GPU with cover on. Then do the same 3 measurements with cover off. After that try with cover on / front fan exhaust.

I would but I have the problem with the gpu not being under load. Basically sometimes both the cpu and gpu will go under load at the same time using prime95 and kombustor but sometimes the cpu will go under load but the gpu will be working 30-60%. I tried running kombustor in high priority and prime95 in low but it didn't change anything.
Quote:
Originally Posted by SpyderMS View Post

That seems like it would work to me, providing you don't have any other fans pushing out air out the back of the case. It doesn't appear that you do, since your video card is cooled by water.
I wouldn't be surprised if this is because of how you have your radiator fans set up. Most people have their radiator in the back of the case, and thus, push the air out the back, and this issue is avoided. You kept your fans in the same direction, but put them in the front of the case, but this pushes all the hot air into your case, hence, your problem. I bet if you swap them as described above, where your PSU is pulling air into the case, and radiator pushing out the front, it'll be much better.
The one thing I haven't accounted for is the heat your Power Supply will generate, although surely it would not be as much as what your radiator generates, so either way you should be better off.
Yep, this here. It would be best if both your PSU and Rad fans are pushing air out of the case, but that's only optimal if you have a lot of vents, and/or another fan bringing air in.

Are you sure that having the psu fan set up in the other direction will be ok to cool it? I'll try both ways (all fans pushing air out of the case or rad fans out psu fan in) and see what sort of temps I get. When I run the tests with the cover off I'll pay attention to how hot the air is coming out the psu.
    
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post #55 of 72
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This is what I managed to get done (and a few low speed tests) so far. This was running prime95 and kombustor at the same time. These were done with the cover on, air blowing into the case, ambient was 21c and the pump was running at 7v. I ran a few tests with 12v to compare and there was absolutely no difference in temp on the cpu, and maybe 2c cooler on the gpu. Not worth the extra noise in my opinion.

EDIT: This is the first time I'm making a graph so if I messed it up I'm sorry smile.gif

EDIT: GPU temps


Edited by Aleckazee - 9/29/12 at 5:55pm
    
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post #56 of 72
good baseline graph thumb.gif no surprise that push/pull at highest fan speed gave the best numbers. Will be interesting to see if the suggested changes drop temps... I'm not sure they will as IMO those are pretty good to begin with.
 
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post #57 of 72
I'm not 100% sure what the above graphs are showing. Are they showing temps based on the setup you had compared to the suggestions made? If so, it's not entirely clear (at least to me) which configuration is which.
Quote:
Originally Posted by Aleckazee View Post

Are you sure that having the psu fan set up in the other direction will be ok to cool it? I'll try both ways (all fans pushing air out of the case or rad fans out psu fan in) and see what sort of temps I get. When I run the tests with the cover off I'll pay attention to how hot the air is coming out the psu.
I'm not certain that having the PSU fan pushing air into the case will be the most efficient cooling method, but I'm most certain it would be better than your radiator fans pushing air into the case, which is why I made the suggestion; but alternately you should definitely try having both push air out of the case, and hope that you have enough ventilation holes in your case to pull in cool air.
Edited by SpyderMS - 9/30/12 at 7:36am
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post #58 of 72
Thread Starter 
Quote:
Originally Posted by She loved E View Post

good baseline graph thumb.gif no surprise that push/pull at highest fan speed gave the best numbers. Will be interesting to see if the suggested changes drop temps... I'm not sure they will as IMO those are pretty good to begin with.

NF-F12 pulling air out of the case shaved 2-3c off, the psu also doesn't seem to be putting out as much heat so I guess that issue is solved.
Quote:
Originally Posted by SpyderMS View Post

I'm not 100% sure what the above graphs are showing. Are they showing temps based on the setup you had compared to the suggestions made? If so, it's not entirely clear (at least to me) which configuration is which.
I'm not certain that having the PSU fan pushing air into the case will be the most efficient cooling method, but I'm most certain it would be better than your radiator fans pushing air into the case, which is why I made the suggestion; but alternately you should definitely try having both push air out of the case, and hope that you have enough ventilation holes in your case to pull in cool air.

Those tests were done before the suggestion of flipping the rad fans. I just wanted to compare a few configurations and in particular compare the F12s to the P12s to see how much better they really are. The results surprised me a bit because the F12s really didn't seem to give much airflow compared to the P12s. They are louder however, and I think I'll end up having it setup with P12s in push/pull blowing air out of the case since they are very quiet fans and still give decent temps. The graph showed them blowing air into the case, temps should drop a bit once I have the fans blowing air out. I'll leave the psu as is.
    
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post #59 of 72
Quote:
Originally Posted by Aleckazee View Post

Rebuilt the apollyon past couple of days. New tubing, improved cable management, added lights and another SSD. Went to turn it on today and nothing happened mad.gif

I'm guessing my psu died because it has been playing up.







I guess I'll just run it with the tx650 I have until I upgrade my GPU (hopefully soon).

More pics please of the changes you made smile.gif
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post #60 of 72
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Quote:
Originally Posted by WiSK View Post

More pics please of the changes you made smile.gif

Will do as soon as I work out what's wrong with the psu (hopefully it's not anything else). It turns on fine if I use a paper clip to hotwire it but not if I plug everything in. I suspect I may have put the power and LED power cables the wrong way around doh.gif It's pretty much impossible to reach them without taking the gpu and radiator out.

I also have a question. I'm having an incredibly hard time bleeding my loop, I have to turn it on, then after a second or two the pump runs dry so I have to turn it off, tilt the case to get air out and repeat. I've done this several times now and although it is taking the water in, it's not getting very far. (If that makes sense)
Any ideas how I can make this easier? I don't recall having the same issue before. Must be the tubing layout difference
    
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