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Quick question: should I buy a sleeve bearing 200mm 700 rpm fan to put at the top of my case ?

post #1 of 2
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I currently have 2 120mm Noiseblockers XL1 that spin at 1000 rpm, 41 CFM, but given that I have an AXP installed in my GTX 480 and it blows air inside the case, and now that I have a CPU that keeps it at 99%, I think I need something that can push air out quicker, and also cool the motherboard's VRM heatsink and RAM DIMMS (two on each side of the motherboard).

I'm thinking of buying the Cooler Master MegaFlow 200 Red LED Silent Fan, 700rpm, 110 CFM.

I should note that I already own one, given that the case I have - the HAF 912 Plus, comes with one as an intake fan, and I quite like it, as it is silent and has been working well for a little over a year now.

The thing is, I think I read that sleeve bearing fans will last less if mounted in a horizontal position. Add to that, it will be extracting hot air, while the one I have is basically pulling fresh air inside the case, so that will add up to the fan not lasting as long.

Will it last a year ? Or should I just order something else ? I can buy the Cooler Master fan right now, whereas I would have to order another eventual 200mm model.


I can instead buy two Noiseblockers XLP, 120 PWM. They start at 1000 rpm and can go up to 2000 rpm, 41-75 CFM. These have an MTBF of 75 000h, whereas the Cooler Master has a 30 000h MTBF, but the Noiseblockes also use a sleeve bearing, although they call it "NB-Longlife Sleeve Bearing".


Thanks!
Edited by tpi2007 - 5/12/12 at 1:23am
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
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Cooler Master Octane 
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Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
post #2 of 2
From what I've seen, Long-life sleeve bearing = slightly thicker sleeve bearing, it wont be the difference between 30,000h at a lower rpm and 75,000h at a higher one.
I recommend you shop around.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835146004

I'd pick up that badboy, sure it's a very bright colour, but I've seen multiple build logs where people are astounded by how nice these fans are.

Either that, or the Bitfenix Spectre Pro: (I can't get onto FrozenCPU to get you a link, you'll have to find these from there another time)

It gets a little noisy, so a fan controller is helpful, but it pushed ludicrous amounts of air.
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Overclock.net › Forums › Cooling › Air Cooling › Quick question: should I buy a sleeve bearing 200mm 700 rpm fan to put at the top of my case ?