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h100 on top: intake or exhaust? help? - Page 3

post #21 of 31
Use identical fans for Push/Pull pair - as you wrote; use the original Corsair fans as a pair and buy whatever other pair - noise ok? That is because diferent brands have different CFM - air flow.

Intake vs exhaust issue is particular to your system (case, other fans, heat sources etc). Just test both setups. With my case (Cosmos S) which is mostly a mesh, I haven't noticed any difference in mobo/CPU temperatures between intake or exhaust - it's on exhaust, though... just because intake on top gets more dust in.

Anyways, it is preferable to have a little bit more (positive) pressure in the case to avoid dust setting in.
Edited by ar3f - 10/25/11 at 8:06pm
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post #22 of 31
Thread Starter 
Quote:
Originally Posted by ar3f;15455094 
Use identical fans for Push/Pull pair - as you wrote; use the original Corsair fans as a pair and buy whatever other pair - noise ok? That is because diferent brands have different CFM - air flow.

Intake vs exhaust issue is particular to your system (case, other fans, heat sources etc). Just test both setups. With my case (Cosmos S) which is mostly a mesh, I haven't noticed any difference in mobo/CPU temperatures between intake or exhaust - it's on exhaust, though... just because intake on top gets more dust in.

Anyways, it is preferable to have a little bit more (positive) pressure in the case to avoid dust setting in.

Done. just bought 2 zalmans 120mm (and cut the neon power cord, becau se I hate neon)... the last 2 and only in a local shop.


Now all I have dto do is wait until tomorrow, when the mail will deliver my fx 8150.

Thanks for the help.

And... I'll try exhaust 1st.
    
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post #23 of 31
Additionally...

If you use slow fans, use them as pull. High fans, push. Medium will be good either way.

I suggest you use push or pull coupled with shroud. This gets rid of the need for excess fans and is much quieter in my opinion. Also you dont need to get as much fans.
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post #24 of 31
Thread Starter 
Quote:
Originally Posted by blu3phoenix;15467333 
Additionally...

If you use slow fans, use them as pull. High fans, push. Medium will be good either way.

I suggest you use push or pull coupled with shroud. This gets rid of the need for excess fans and is much quieter in my opinion. Also you dont need to get as much fans.

please forgive this forengner with limited grasp of English: shroud?
what's it? like a filter? can you link some pics?

thanks

also, I'm having trouble fitting even 2 fans into my case. I had to actually cut pieces (angles) of my zalmans (as I don't want to mess with the original fans) to make space for the RAM and dissipators on my mobo.

Will likely mod the case and put fans outside as well down the road
    
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post #25 of 31
Quote:
Originally Posted by wondergod;15454840 
it really is different for each case and setup. The best way is to test both methods.

This. Your setup is going to be different, so try both and see what gives you the best temps.

I have Push/pull in an intake configuration, with the rad ontop of the PC. I just dont like hot case air going through my rad and this works for me.

As for fans. If you are going to add different fans, use the stronger fan as push and the weaker as pull. For optimal performance, try using the same make and speed of fan.

A simple shroud is a gutted 120mm x 25mm fan (leaving just the outside frame). This goes between the fan and the rad. The idea of a shroud is to eleminate the dead spot on the rad from the fan hub. The shroud moved the fan hub further away from the rad, thus optimising the cooling potiental of the rad.

Some people claim upto a 5c decrease in temps by using them, I use them and I get a 2c drop in my temps.

Example of a home made shroud
picture.php?albumid=1643&pictureid=12046

Example of shrouds on my old H50
picture.php?albumid=1643&pictureid=14088

Initial placement of my rad (prior to installing shrouds and AP-15 fans)
picture.php?albumid=1643&pictureid=27391
Edited by Sethy666 - 10/27/11 at 12:06am
post #26 of 31
Thread Starter 
Quote:
Originally Posted by Sethy666;15470387 
This. Your setup is going to be different, so try both and see what gives you the best temps.

I have Push/pull in an intake configuration, with the rad ontop of the PC. I just dont like hot case air going through my rad and this works for me.

As for fans. If you are going to add different fans, use the stronger fan as push and the weaker as pull. For optimal performance, try using the same make and speed of fan.

A simple shroud is a gutted 120mm x 25mm fan (leaving just the outside frame). This goes between the fan and the rad. The idea of a shroud is to eleminate the dead spot on the rad from the fan hub. The shroud moved the fan hub further away from the rad, thus optimising the cooling potiental of the rad.

Some people claim upto a 5c decrease in temps by using them, I use them and I get a 2c drop in my temps.


Initial placement of my rad (prior to installing shrouds and AP-15 fans)

Thanks a lot.
i actually set my system with a push only, exhaust setting from top inside the case. I plan on taking it all out like your pic. Looks better and leaves more space inside the case.
    
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post #27 of 31
Quote:
Originally Posted by Sethy666;15470387 

Initial placement of my rad (prior to installing shrouds and AP-15 fans)
picture.php?albumid=1643&pictureid=27391

That right there is almost dead on balls what my set up looks like.

Fan Grill
120mm fan pulling
7mm fan spacer
radiator
7mm fan spacer
case grill...grill opening cut to allow H100 pump to pass by
7mm fan spacer
120mm fan pushing
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post #28 of 31
Hot air rises so exhaust
post #29 of 31
Quote:
Originally Posted by Don Karnage View Post

Hot air rises so exhaust

Just had mine in both configurations, exhaust and intake. I am seeing 5+ degrees better with it set up as intake.
Edited by JustLo - 5/19/12 at 11:42pm
post #30 of 31
Can anyone better explain what hardware you use to mount all of these items together? I assume I need to buy some special screws to get this set up to work. I have a HAF 912 and h100 and 4 120mm fans to get this set up to work. I am interested in the home made shrouds but might prefer the 7mm spacers if its all the same effect. Any help you guys can offer, especially including pictures if possible, would be very much appreciated.
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