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How to decide on a case for air cooling (warning - pics) - Page 115

post #1141 of 2110
Another upgrade (you guys made me wonder about really blocking the second top fan position) and I did it too. Used a black sheet of paper like you adviced:

54782501981361066120_thumb.jpg

But I also removed the D14 first push fan's shroud (an AP-29) 'cause I thought the top TY140 would work better feeding the D14's push fan. I might have been wrong, since the shroud was intended for a good reason. rolleyes.gif

http://cdn.overclock.net/a/ac/acfd5f8d_21987682062084156579.jpeg

But I don't like it anymore biggrin.gif
However, the results are pretty much the same, only two cpu cores got 1°C more (at the same room temp, 22°C), but this is something I can even neglect because of the stress test session length (only 10') or may even be casual:

Before: 60 56 57 55

83193546881507332760_thumb.jpg

After: 61 56 58 55

38462757486604122195_thumb.jpg


I think they're both nice results for a 920 overclocked (I'm lowering to 3.8Ghz for the summertime).
I'll follow your further info's and tests about it (first top fan). cool.gif

Feel free to comment. smile.gif
Edited by arrow0309 - 5/2/12 at 1:39am
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post #1142 of 2110
I would remove the silly grill at your rear fan position to have that bit extra air flow. No point having it.
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post #1143 of 2110
definitely remove that rear fan grill
   
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post #1144 of 2110
Quote:
Originally Posted by solsamurai View Post

You could experiment with fans that have a more focused airflow pattern like I'm doing. biggrin.gif The Phanteks 140mm I ordered is being delivered today. Like the Silverstone Air Penetrators it has a more centered airflow pattern than the typical cone pattern of other fans. The TY-140/150 have a cone pattern which in my case worked out well when I installed one on top of my HDD cage:
400
I can feel the air blowing upwards towards the SA front push fan. This new setup has dropped my CPU and GPU temps by 2c and 3c. I can now Fold and run Boinc GPU WUs without removing the front dust filter. biggrin.gif Temps where a little too high before. The Phanteks 140mm is for the top panel front intake. The Corsair 120mm stock just isn't helping much. I'm hoping the airflow pattern of the Phanteks will drop CPU temps another 1-3c at least.

When you say cone pattern, does that mean there's dead air (no air practically) in the center of the fan? I think this is the most common pattern among fans, right?
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post #1145 of 2110
Quote:
Originally Posted by ohhgourami View Post

I would remove the silly grill at your rear fan position to have that bit extra air flow. No point having it.

Quote:
Originally Posted by chinesethunda View Post

definitely remove that rear fan grill

Ok, ok, I'll remove the fan grill (I was actually planning to take it off before summer).
Tomorrow morning I'll remove it, however I wouldn't expect a big improvement since I'm already getting nice temps for an I7 920, about 14-15° Delta T in idle. smile.gif
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post #1146 of 2110
I thought ehume said himself removing rear grill doesn't improve temps but only reduces sound?
post #1147 of 2110
Still a quantifiable improvement! Completely justified to be done!
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post #1148 of 2110
Quote:
Originally Posted by kevindd992002 View Post

When you say cone pattern, does that mean there's dead air (no air practically) in the center of the fan? I think this is the most common pattern among fans, right?

The cone pattern is very common. You can image the air blowing outward from the sides like a big "V" pattern. As far as I know only Phanteks and Silverstone make fans designed to produce a more focused flow. I installed the Phanteks last night up top and so far very happy with the outcome. It's a little too loud for me at 1200 RPM. I used the included 5v adapter to drop it to 750 RPM and now its quiet and still moves air! I can definitely feel more air closer to the center of the fan than what the TY-140/150's produce. So for my intended use (top intake for SA) it's perfect. CPU temps dropped ~2c and it feels like the air blowing out the rear has increased a bit. Overall case airflow noise seems to have gone up a little more but nothing that bothers me. Again this is the sound of the air blowing through the case not fan vibration or bearing related. I'll post some pics soon. If I come across the extra cash I may even try a couple more Phanteks on the SA and see what happens. biggrin.gifthumb.gif
Quote:
Originally Posted by darksen View Post

I thought ehume said himself removing rear grill doesn't improve temps but only reduces sound?

It was a sound issue in my case with both the K62 and 650D. Properly configuring my airflow is what made the biggest difference in temps.
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post #1149 of 2110
Quote:
Originally Posted by solsamurai View Post

The cone pattern is very common. You can image the air blowing outward from the sides like a big "V" pattern. As far as I know only Phanteks and Silverstone make fans designed to produce a more focused flow. I installed the Phanteks last night up top and so far very happy with the outcome. It's a little too loud for me at 1200 RPM. I used the included 5v adapter to drop it to 750 RPM and now its quiet and still moves air! I can definitely feel more air closer to the center of the fan than what the TY-140/150's produce. So for my intended use (top intake for SA) it's perfect. CPU temps dropped ~2c and it feels like the air blowing out the rear has increased a bit. Overall case airflow noise seems to have gone up a little more but nothing that bothers me. Again this is the sound of the air blowing through the case not fan vibration or bearing related. I'll post some pics soon. If I come across the extra cash I may even try a couple more Phanteks on the SA and see what happens. biggrin.gifthumb.gif

Would you say it's quieter than the TY-140 at the same speed?
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post #1150 of 2110
Love how your case is looking solsamurai, real clean. Glad your Phanteks worked well for you.
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