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How many case fans are too many?
pissant1987 
4/7/08 1:20:26 PM
Serf
Hi, I've currently got 4 fans in my full server tower at the moment. (1 in the PSU, the stock cooler on the intel CPU, 1 80mm intake and 1 80mm exhaust). I have a 500watt PSU, the cpu fan and the exhaust fan are plugged into their respective headers, and the intake is spliced into a spare molex connector. I've been running this setup for a while, but since the inclusion of the new intel CPU and 1 graphics card (passively cooled), the system temps are running too high for my liking under sustained load.

Short of buying anything else (more fans etc), I want to add in another exhaust fan and another, smaller fan mounted to the bottom of the case (facing the gfx card) to deal with that little hotspot. My system consumes 345watts (500watt PSU) max under full load, and since I don't want to spend any more money, I was going to use the spare molex connectors from the PSU, fashion some plugs for the fans, and hook them up that way. (I have had a few years experience with electronics and modding, so I won't have a problem doing this).

Does anyone see any problems arising from using this setup? The extra fans won't draw too much current (each will be on seperate molex connectors)?

The graphics card hits 80-90 degrees and the cpu 40-50degrees under sustained load. I want the graphics as close to 60 as I can, and the cpu to get down to about 25 degrees.

Thanks

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tr0110p 
4/7/08 1:50:13 PM
Journeyman
80mm fans are far too noisey - get 120-140mm ones.
noise aside, you can't have too much fannage.
I don't like your chances of your CPU attaining 25c on air. add 10c too that, assuming you have an excellent cooler.

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pissant1987 
4/7/08 1:58:41 PM
Serf
I use the stock cooler that came with the Intel CPU and I don't mind the noise from the 80mm fans. It's winter at the moment here (Australia) and the weather ranges from -5degrees overnight to 12 or 13 during the day which significantly drops the temps. I can get 20degrees under full load for the cpu, and 45degrees for the gfx card. But when it hits summer the temps will be cooking - but by then I'll have spare cash to by bigger fans. Just for now I wanna try with more 80mm fans, just too see if it works i.e. I can save money inthe future by using these instead of buying new, 120mm or larger fans (I have about 50 80mm fans laying around from old systems and busted PSU's)

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TheFrunj 
4/7/08 6:57:37 PM
Titan

I currently have a total of 12 fans in my case :)

6 case fans
2 graphics card fans
1 psu fan
2 cpu fans
1 northbridge fan

All hooked up to a fan controller, so that they are very quiet when I'm not gaming or encoding. So by all means, use as many fans as you have space for. Just try to keep it all moving from the front of the case to the back, and you'll be fine.

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m0zes 
4/7/08 8:56:17 PM
Champion
There's really no such thing as too many fans, lots of slow moving fans can provide as much air flow as a few high speed fans at much, much lower noise levels. It therefore comes down to what prefer, but in terms of power consumption you'll have to be running some powerful 120mm fans ie deltas to have any serious impact on power draw. Your typical 120mm fan uses around 3watts-6watts.

cheers


Edited by m0zes: 4/7/2008 8:56:55 PM

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Jeruselem 
4/7/08 10:53:58 PM
Champion

Let's see ... one fan on the 8800GS, one on the CPU, 92 mmm case fan in at the bottom of the case (horizontal), 3 x 80 mm case fans, 120mm on the PSU and one stupid little chip 40 mm chipset fan.

Nah, not enough! Lots of fans is just ... noisy.

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PC 1: XP Home SP2, Opty 165@1.8Ghz, GEIL 1GB PC3200, 320GB SATA Cuda ES,XFX 9600GSO 580/700x2/1450, Seasonic S12+ 550W
PC 2: XP Home SP2, XP 3000+@2.24 Ghz, 1GB PC3200, 80GB IDE,ASUS nVidia 6800 512MB, GTR iCute 450W

Tech-Kid 
4/7/08 11:43:06 PM
Champion
Coolermaster 120mm exhaust, Coolermaster 80mm intake, Thermaltake 120mm CPU fan, Antec 80mm PSU fan.

Case is only an Elite 330 so you know... can't fit much fans in there. By the way for only $69 this case is bloody awesome and looks fantastic too! Want pics :P? Ah yeah anyway my noise changes due to me setting the CPU fan speed. Quiet when I'm at sleep, full blast when I'm awake. The F10 BIOS has lost the setting that changes fan speed automatically on load. Dumb F10!

Forgot: My 3850 has one too.


Edited by Tech-Kid: 4/7/2008 11:44:15 PM

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1: Intel P4 640 @ 4256 (16 x 266), Gigabyte P35-DS3P, 2GB A-Data 800 H.S, ATi HD3850 770/1030, Antec E.W 500w, TT Big Typhoon VX, CM Elite 330
2: AMD Athlon XP 1800+ (11.5 x 133), MSI K7T266 Pro, 512MB Gen. 400, GeForce 7600GS, Gen. 450w, Stock coolin

tr0110p 
5/7/08 9:32:12 AM
Charge
Quote by pissant1987
I use the stock cooler that came with the Intel CPU and I don't mind the noise from the 80mm fans. It's winter at the moment here (Australia) and the weather ranges from -5degrees overnight to 12 or 13 during the day which significantly drops the temps. I can get 20degrees under full load for the cpu, and 45degrees for the gfx card. But when it hits summer the temps will be cooking - but by then I'll have spare cash to by bigger fans. Just for now I wanna try with more 80mm fans, just too see if it works i.e. I can save money inthe future by using these instead of buying new, 120mm or larger fans (I have about 50 80mm fans laying around from old systems and busted PSU's)



I live in aus to - -5deg where's that? tassie or sumfink?

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mattstandingup 
5/7/08 11:04:52 AM
Journeyman

I have found that the fans that come with the stock intel coolers are fantastic. You need to be a little creative to mount them as case fans, but they shift a hell of a lot of air compared to most 80mm fans and are typically quieter.

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===============================================
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Smokie 
10/7/08 5:18:12 PM
Initiate

If you are like me i always listen to my music loud and play games loud. I don't watch no many movies on mp PC so i don't worry about the noise to much. As it has been stated get 120 - 140mm fans as they woft the same abount or more air at a lot less noise level. Currently i have 3X80mm, 1X92mm, CPU, PSU, GPU. The case that i am building will concist of 3X120mm, 2X80, CPU, PSU, GPU. Depending on your enviroment depends on the amount of cooling you require. In summer where i live it can get up around 38-41*C so plenty of cooling inside the case in needed. Always keep in mind the positoning of your case as well make sure there is good ventalation around the case so cool fresh air can be drawn in and that once the hot air is pushed out i has somewhere to go. So all in all it depends on your situation and needs for how many fans you want. I say the more the marrier.

-Smokie

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adrianf 
13/7/08 10:57:24 AM
Charge

[quote)

I live in aus to - -5deg where's that? tassie or sumfink?

I live in Qld and we got -3 for 2 days last week.

Adrian

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Gigabyte GA-P35-DS3L, E6850@stock with Coolmaster Gemini II (2X120mm fans), 4Gb 800MHz, MSI 9600GT 512Mb O/C, CoolerMaster 690 case, Corsair VX450W.

elmo198 
13/7/08 3:10:52 PM
Champion

I think the amount of fans needed only relates to the heat that all your components can generate. Meaning, if you have a gaming rig, you probably want more fans than your grandma's email PC. For you in this case if ya running a file server, you would probably want a case that has some sort of fan/air flow system over those hdds of yours as they are the primary heat source.

personally what default fans are found on your components and a couple of 120mm fans should be more than enough for a standard size case. over doing fans can only lead to bad PSU power output let alone your hearing too.

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Jeruselem 
13/7/08 3:17:58 PM
Champion

Quote by elmo198
I think the amount of fans needed only relates to the heat that all your components can generate. Meaning, if you have a gaming rig, you probably want more fans than your grandma's email PC. For you in this case if ya running a file server, you would probably want a case that has some sort of fan/air flow system over those hdds of yours as they are the primary heat source.

personally what default fans are found on your components and a couple of 120mm fans should be more than enough for a standard size case. over doing fans can only lead to bad PSU power output let alone your hearing too.




And the climate! I live the tropics so I always need all fans to be working hard to keep the system under 50C. Yes, I could turn on the aircon on top of my system but that's using even more power and releasing greenhouse gases ...

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PC 1: XP Home SP2, Opty 165@1.8Ghz, GEIL 1GB PC3200, 320GB SATA Cuda ES,XFX 9600GSO 580/700x2/1450, Seasonic S12+ 550W
PC 2: XP Home SP2, XP 3000+@2.24 Ghz, 1GB PC3200, 80GB IDE,ASUS nVidia 6800 512MB

kolekta 
14/7/08 8:50:05 AM
Champion

how many fans? lets see:
1x 200m &
3x 120mm in the case (room for 2x more 120mm)
1x 120mm CPU
1x 120mm PSU
1x 90mm VGA
3x 40mm RAM
AND, I can barely hear them, all set on low speed.
living near Sydney CBD - fuck the air-con, mine's running at a toasty 30-32c to warm the place up, bugger the PC, it's too cold.
;)

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who are the thought police?

mohawk 
16/7/08 8:06:09 AM
Guru

Quote by kolekta
how many fans? lets see:
1x 200m &



Must have a huge case to fit a 200 metre fan. : P

Me have,
4 x 120mm case
1 x 200mm case
1 x 120mm HSF
1 x 120mm PSU
1 x 80mm GPU HSF

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AM2 5000+@3.0Ghz,GA-M57SLI-S4,8800GT 512MB,2gb geil ultra,Corsair HX620w,22" Acer AL2216W,Antec 900
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mark84 
18/7/08 1:39:03 PM
Hero
Guru


lol @ mohawk

I should be building my new rig this weekend, will likely end up with:

1x 200mm case
7x 120mm case
2x 120mm radiator
2x 92mm stock barrel fans on the GPUs
1x 120mm PSU

Now that's a lot of fanage!

80mm's are noisy, used to use a TT Xaser III case which had something like 7x 80mm fans just for the case, would get quite loud when you turned it all up :)

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Jeruselem 
18/7/08 2:46:59 PM
Champion

Quote by mark84
lol @ mohawk

I should be building my new rig this weekend, will likely end up with:

1x 200mm case
7x 120mm case
2x 120mm radiator
2x 92mm stock barrel fans on the GPUs
1x 120mm PSU

Now that's a lot of fanage!

80mm's are noisy, used to use a TT Xaser III case which had something like 7x 80mm fans just for the case, would get quite loud when you turned it all up :)



That's enough fans to start your own fan club LOL

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PC 1: XP Home SP2, Opty 165@1.8Ghz, GEIL 1GB PC3200, 320GB SATA Cuda ES,XFX 9600GSO 580/700x2/1450, Seasonic S12+ 550W
PC 2: XP Home SP2, XP 3000+@2.24 Ghz, 1GB PC3200, 80GB IDE,ASUS nVidia 6800 512MB, Codegen 450W

MyAlbanianAss 
18/7/08 5:19:56 PM
Guru

http://www.2dayblog.com/blog/2007/11/23/the-super-cooler-for-pc/?lang=en#more-5398

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kolekta 
19/7/08 8:55:46 AM
Champion

huge?
it's an Antec P900, not huge (cept for the 200mm BigBoy)

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who are the thought police?

mohawk 
19/7/08 9:00:58 AM
Guru

Quote by mark84
lol @ mohawk

I should be building my new rig this weekend, will likely end up with:

1x 200mm case
7x 120mm case
2x 120mm radiator
2x 92mm stock barrel fans on the GPUs
1x 120mm PSU

Now that's a lot of fanage!

80mm's are noisy, used to use a TT Xaser III case which had something like 7x 80mm fans just for the case, would get quite loud when you turned it all up :)



LOL. Looks like you are building a transport plane Mark. What time does it take off.

I used to have a Xaser III as well. One of the best cases I have ever had. Sold it as it was getting to heavy carry it to LANs.


Quote by MyAlbanianAss
http://www.2dayblog.com/blog/2007/11/23/the-super-cooler-for-pc/?lang=en#more-5398



I reckon that it will be one noisy ass box. I also think that the front, back, top and bottom fans won't be that useful. Just having the side fans would be more than enough to keep it cool.


Edited by mohawk: 19/7/2008 09:01:25 AM

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AM2 5000+@3.0Ghz,GA-M57SLI-S4,8800GT 512MB,2gb geil ultra,Corsair HX620w,22" Acer AL2216W,Antec 900
Atomic’s most recommended PSU’s thread.
http://www.atomicmpc.com.au/forums.asp?s=2&c=19&t=1587

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