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need 2 quiet intake fans

I

imported_Mike

Lifer
i just got an antec sx835II case that comes with 2 80mm fans at the back. i need 2 more to put at the front of the case. i was thinking about buying 2 more smartfans for $10 each so they are all the same. anyone have these fans or case? these antec smartfans good? should i even replace the orginal case fans and go for 4 different fans? i want them to be quiet, but effective. any suggestions are welcome and appreciated. thanks
 
There is a good buy on very quiet, high-quality 80mm fans here. Five for $11 plus shipping. Your case actually has room for three intake and two exhaust fans (I have the same chassis myself) so this would give you a set of five very quiet fans. Also pick up as many 3-pin-to-4-pin adapters as you'll need to plug them in. Although the fans don't move a lot of air individually, a team of five works really well for my rig.

(by the way, the third intake position is the one in the hard-drive cage, a good place for one)
 
the two exhausts might well be perfectly fine on their own, adding a third for intake probably a nice idea to help a good flow. Personally I'd probably get 2 quiet fans and combine one antec and one of the new quiet ones on each end; can always replace the antec two if theyre too noisy [depending on shipping costs i guess], probably would get away with the 2 quiet's on exhaust and the one antec on intake - depends on what you have in your comp making how much heat (overclocking?), quality of cpu heatsink, etc.
 
damn, i didnt even notice the other fan spot in front of the hard drives. your telling me i can get 5 good quality quiet fans for the price of 1 antec? you understand why i ask, wtf is with that? your buddy own this store, or what? you sure you dont live in san jose? lol, sorry, but im just wondering how this can be. they are quiet. got that, but is that cuz they arnt as powerful? which is why you said together they cool your system quit nicely? these fans work well, will 3 more antec fans work even better? thanks
 
MechBgon is referring to the point of diminished returns, the place where more of anything doesn't really do you any good. The stock exhaust fans on your sx835 are pretty much there in the first place, Antec picked them because they'll cover the vast majority of situations with ease. Great case, it'll practically cool itself w/o fans....

The NMB fans he referenced are high quality, low power and extremely quiet. Going that way gives excellent redundancy and very low noise with sufficient airflow for all but extreme systems.
 
He never implied that the 5 fans were cheaper than one Antec fan? Some people are intent on minimising noise and would happily replace all the fans in their machine for some relatively expensive but quiet ones? Actually from his post I'd gather he has already done this himself? There is naturally a general assumption that people posting here are overclocking a little and hence need the airflow - if youre not overclocking your two existing fans are probably fine for you, maybe as both exhaust or one exhaust one intake.

Quieter fans manage to be quieter in several ways? More precise engineering will reduce vibration; a more presisely cicular ball bearing will reduce vibration; different cuts of fan blades will result in different airflow and hence turbulence, making different amounts and types of noise. Different cuts of fan blade may also be more efficient at pushing air for each turn of the fan. In reality though the main way of reducing noise is reducing the rpm (fan turns per min) which directly reduces the amount of air pushed. Two fans each pushing "n" air are likely to make less noise than one fan pushing twice as much air, since the more you crank up the rpm the less efficient each rev is at pushing air, and to an extent the noise of one fan with mask the noise of another.

(got bored with the ? thing 😉)
 
ok, i think i got it. the case fans included in my case a good enough for most configurations(no overclocking here) so i would be fine. MechBgon just suggested that if i wanted to go with the a quieter solution to go with linkified fans. 5 fans are not needed, but hey, 5 for $11, why not? the case would be cooled with the antec fans, just these quieter fans are nice cuz.......there quieter. and there not expensive, unlike the $10 per 1 antec fans i was about to buy. these are 3-pin, and the case uses 4-pin. i think ill get the 5 fans and the 5 adapters. thanks, any thing else that would be a good idea for cooling? sorry for any "dumb" questions, this is my first system ive put together and not too computer literate. used to buy premade systems from dell & etc. any suggestions or help is much appreciated.

quieter-i know
 
Check the documentation on your motherboard, too, most have additional fan headers that you can use for 3 pin case fans. Count the # of available plugs on the psu cables, sometimes it's better or necessary to use Y-adapters to hook up a bunch of fans. Plan ahead....
 
Heh... some days I feel like I should be paid by some of these companies... AsusTek, you listening...? 😛 But I'm just a retired bicycle mechanic with a half-time job doing help-desk + computer-maintenance stuff for a non-profit. 😉

You can get a similar deal on the same fans from Directron.com at the moment if they're closer or have something else you need. Anyway, my office system has the NMB's and it runs quite cool (same chassis as yours except for power supply). We're trying to get 40 of those fans since the deal is so good, but SVC can't seem to get it handled. The corporate credit card is in the area director's name and they don't seem to be able to verify our shipping address. If there are any SVC moles around here... get my order going dudes! 😛 Lutheran Community Services Northwest - Spokane, 40 80mm NMBs, 5 80mm L1A's, 45 3-pin-to-4-pin adapters, hustle! :|

Incidentally, another possible tweak for your new case is to flip the power supply upside down so it draws air from the top few inches of the case, where the air stagnates otherwise due to lack of vents up there. I posted how to do that here.
 
dude, you took them all. lol jk, i hope they have more than 40 in stock. thanks

Notes: (1) To reduce the noise level from this fan, please add a 12-to-7 volt adapter for only $3.99 (must be used together with the 3pin to 4pin adapter). (2) The length of the connection wires is short at 7.25". An extension is highly recommended to use this fan inside a PC case.

from directron, is 7.25" short, or are they trying to sell me more stuff?

directron:
Specifications: Model: 3110KL-04W. Size: 3.15 in sq. X 0.98 in (80mm X 25mm). Airflow: 25CFM. Noise: 22-40 dBA. 12V DC; 0.13A. Lead Wire: AWG 24, Red/Black, UL1007, CSA TR-64. AWG 26, Red/Black/White, for 3 lead wires.
SVC:
Specifications:
Air Flow: ~18CFM
Noise: <18dBA
Current: 0.060A
Power: 0.72W
Voltage: 12VDC
Operating Range: 6~13.8VDC
Bearing Type: Dual Ball
Connector: 3-pin w/RPM

different specs........

model #s are close, but not exact same
directron: 3110KL-04W
SVC: C3110KL-04W-B19
 
They are trying to sell you more stuff, and at a high price too! SVC: 49 cents for the standard 3-pin-to-4-pin adapter. Directron: $2.99. Ouch! :Q

A 7-volt adapter on an 18dB fan is going overboard and would cripple the already-low airflow. The system will only be as quiet as its loudest component anyway (hard drives, chipset fans, video-card fans...).

edit: regarding the 7.25" wires... one fairly neat wiring setup would be to use one 3-pin header for your CPU fan, another 3-pin header to power the two rear exhaust fans using a 3-pin Y adapter, and then power the three front fans using 3-pin-to-4-pin adapters, or power one off a 3-pin header if your board has one on the front half.

I wish I had a digital camera, because I thought I did a really neat job with my cables (don't we all 😉). You can sneak the power cables and even the ATX cable inbetween the 5.25" cage and the motherboard tray for visual neatness. I used some double-sided velcro to bundle up the unneeded wiring and stuffed it behind the power supply (another option would be to take the right side panel off and hide the excess wiring between the right side panel and the mobo tray).
 
The mobo that I used in that case only has two 3-pin headers, so I had to use 3-pin-to-4-pin adapters to power the rear exhaust fans. Of the three front intake fans, I powered the HDD-cage fan off the remaining 3-pin mobo header, and ran the other two off 3-pin-to-4-pin adapters.

Incidentally, with most 80mm fans, I wouldn't be comfortable powering two off one mobo header for fear of overloading it, but these ones don't draw much amperage so it's not going to be an issue.
 
i oredered, $6 for 3-day shipping, oh well. the 5th fan(in hard drive cage) says to be installed before the drive is. installed the drive today and the fans wont come for 5 days, you think it might be a problem?
 
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