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Fractal Arc Midi fan placement

post #1 of 4
Thread Starter 
So I've been reading up on all the 140mm fan threads and been pleasantly surprised how much "my" case has been mentioned smile.gif I want to get advice (hopefully from airdeano especially) on what to buy for case fans. Here is my stock setup: 2 silent series r2 fans in front and 1 in exhaust. I also just bought the Thermaltake Pro 2.0 water cpu cooler. It is a single 120mm. So I was going to hook that up as the exhaust.

I have the cpu cooler as the exhaust, and then 3 fans to put in 5 slots (2 top, 2 front, 1 side). I can't use the bottom because my PSU is too long smile.gif I am also for sure removing the top HDD cage and just keeping the bottom one. I will have 2 or 3 hard drives max in this case.

I see that the BGears 140 has been recommended. So should i buy 2 and put one as an intake in the front middle (where i removed the hdd cage) and then 1 as an exhaust in the top rear? Then i'd have the 3 silent series r2 fans as front bottom intake, side intake and top front exhaust. Should i just buy 2 more silent series r2 fans and fill up the slots? Should i put my thermaltake pro 2.0 120mm rad and place that at the top?

I know the top of the case can take 2x140mm and 1x120mm but i don't want to use the very front fan spot because i'm going to put a blu-ray player up there. I can get the BGears 140 for $11 each and the silent series 2 140mm for $13 each so price is the same. Also each store charges the same high shipping.

Also, i've heard the fan controller on the arc midi mostly sucks. That worries me with the BGears since it is recommended to put them at 7v and not 12v. Is the built in fan controller at least good enough to be able to hook up to 2 BGears fans and leave them at 7v constantly?

So I have the Fractal Arc Midi, 3 stock fans, 1 thermaltake 2.0 pro 120mm rad with fans and just want to know how to fill the last 2 empty fan slots. Or should i save my money and put no fans on the top because it is grilled and the hot air will just rise and leave the case without needing help from a top exhaust fan?

thanks so much!!
post #2 of 4
i am a user of the BGears 140mm on 7v (running off PSU molex) and they are wonderful.
ive dressed another for the exhaust (also 7v). running a corsair H100 with SP120 performance
push/pull @ you guessed it 7v. the PSU fan is the loudest in the case (till i get another PSU).
ive run the rear as exhaust and intake and noted no change in case temperature, none.
12v front fans 7v H100 saw -3° case temp drop.
12v front fans 12v H100 saw -6° case temp drop. and 4° CPU drop.

ive tried the bitfenix pro 140, swiftech 140, akasa 140, AF140 and prefer the balance
of temp and audible and i like the BGears.
the next fan was the bitfenix with lower performance, but quieter 12v and 7v.
the swiftech was again lower perf, and much quieter 12v and 7v.
the akasa was near the performance and audible, but more expensive.
AF140 was the quietest but just didnt have the chilling effect needed.

these are in an arc midi with no HDD cages.




airdeano
post #3 of 4
Thread Starter 
Thanks so much for the pictures! I don't see the placement of the BGears. It looks like the front 2 and the exhaust are the stock silent series r2 fans and in the roof you got the H100. The BGears only comes in black right? Also for the Thermaltake 2.0 would you recommend it being placed in the exhaust or in the roof? I am thinking roof now and as an intake (is that push?) and then have the BGears as the exhaust and then buy a separate 180mm for the side panel. That would give me 4 intake (2 front, 1 side and 1 roof) and 1 heavy duty exhaust (BGears in the back). Plus an open vent in the back top. This would be SORT OF equal since the front 2 have a filter so people said to cut the CFM in half. Then the BGears is unimpeded so it's doing its full 100+CFM in the back. Definitely positive air pressure but not too lopsided is my guess.
post #4 of 4
Quote:
Originally Posted by andross77 View Post

Thanks so much for the pictures! I don't see the placement of the BGears. It looks like the front 2 and the exhaust are the stock silent series r2 fans and in the roof you got the H100. The BGears only comes in black right? Also for the Thermaltake 2.0 would you recommend it being placed in the exhaust or in the roof? I am thinking roof now and as an intake (is that push?) and then have the BGears as the exhaust and then buy a separate 180mm for the side panel. That would give me 4 intake (2 front, 1 side and 1 roof) and 1 heavy duty exhaust (BGears in the back). Plus an open vent in the back top. This would be SORT OF equal since the front 2 have a filter so people said to cut the CFM in half. Then the BGears is unimpeded so it's doing its full 100+CFM in the back. Definitely positive air pressure but not too lopsided is my guess.

indeed, but they are BGears with the blade assemblies in white paint. (click 2nd pix)
cooling as a roof intake is natural, but i do not like it as the dust is instantly drawn
to fall into the case. but youd wanna do you own comparitive. i found very lil
difference in cooling and case temps in either direction. so i use mine as an
exhaust system in the roof.

airdeano
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