View Full Version : 120mm FANS!!!
ok, im starting to build my water cooling setup now and need a 120mm fan (making a cooling tower of my own design), so i spent a few months looking through various stores and places looking for this size fan (can't order online, dont have credit card) but couldn't find ANY, until a few days ago i came across one in Radioshack of all places. But my problem is that i checked it out and it doesn't say anywhere on the box or inside whether the fan uses ball bearings or sleeve bearings. I asked the guy @ the counter if anyone there knew what type of bearing the fan used, but none of them could tell me. The connection @ the end of the fan is just two wires, so i will have to splice it onto a normal 2-pronged plug to use it on my cooling tower. It also costs $33 Canadian. My question is, should i go ahead and get this fan?? has anyone here ever used those radioshack fans? and if so, are they any good? I think that this fan is a sleeve bearing though, because i looked @ the box for their 80mm fans and it said that they are sleeve bearing. Thanks for any input.
LordRHYMEZ-
12-02-01, 06:37 PM
Get a delta fan.
Throws out just as much air.
adamtekh
12-02-01, 11:13 PM
yes but its alot louder !!!! , and thats why hes asking about bearings i think
and when u do water cooling , your not going for loud
adamtekh
12-02-01, 11:15 PM
i think ill take a trip down 2 the shack on one of my lunch breaks this week , and check those fans out , i belive its 80 some CFM looked @ them before ......
Wicked Klown
12-02-01, 11:21 PM
Get the Ys Tech it pushes 131c.f.m. and is rather quiet. And it`s only $15 cheaper then the Shack. You can get it at www.sidewindercomputers.com
I'm pretty sure the RS fans are ball bearing, but don't quote me on that one.
PANAFLO makes a greta fan that is queiter and cheaper and pushes 131CFM
www.caseetc.com
Wicked Klown
12-02-01, 11:38 PM
Originally posted by jbell
PANAFLO makes a greta fan that is queiter and cheaper and pushes 131CFM
www.caseetc.com
They highest output Panaflo they have there is 103.8c.f.m.
Crazy Jayhawk
12-02-01, 11:41 PM
I had one of those RS fans once. They move about 85 CFM (assuming the package is correct) but they're somewhat noisy. I believe this is because the blades are oriented incorrectly.
Normally, a fan blade is roughly flat at its leading edge, where it "bites" into the air. Its trailing edge is more vertical where the air is sent out.
The RS fan I had had them reversed, which I believe cut efficiency and increased noise.
Go to www.bgmicro.com and you can get 120mm Panaflo fans for $6. They're quieter and still move ~70 CFM. I highly recommend them, as I have three and can barely hear them.
Originally posted by Klownin79
They highest output Panaflo they have there is 103.8c.f.m.
damn ... I read it somewhere - my bad - been a crappy week for me and computers...
Wicked Klown
12-02-01, 11:47 PM
You and me both. Last night went to change cases for my back-up rig and broke the socket tab.
Originally posted by Klownin79
You and me both. Last night went to change cases for my back-up rig and broke the socket tab.
two rigs dead or dying in a week....
Wicked Klown
12-02-01, 11:58 PM
yea then one I'm on now is using a cheap SiS 4m.b. video card. It won't use the GeForce2 MX400 64m.b. I have due to the AGP slot being messed up.
Originally posted by Klownin79
yea then one I'm on now is using a cheap SiS 4m.b. video card. It won't use the GeForce2 MX400 64m.b. I have due to the AGP slot being messed up.
ouch!
ol' man
12-03-01, 02:16 AM
I bought two fo the rat shack fans and the blades are weird looking. I am not sure why they made them that way. It is truly weird. Too bad I am stuck with this junk.
Crazy Jayhawk
12-03-01, 02:40 AM
Originally posted by ol' man
I bought two fo the rat shack fans and the blades are weird looking. I am not sure why they made them that way. It is truly weird. Too bad I am stuck with this junk. Weird in the same way I described above?
For mine, I actually took the rotor off the fan. Then I sliced off the top of the rotor with a dremel tool and glued it to the other side. It worked well for a while, but in the end it burned out.
Panaflos are better anyway. :burn:
mcrites
12-03-01, 07:49 AM
Originally posted by Punk
(can't order online, dont have credit card)
Anyone else notice this? :D :D :D
Wicked Klown
12-03-01, 07:52 AM
Originally posted by mcrites
Anyone else notice this? :D :D :D
Do you have a checking card if so uses that. Oh yea and it`s nice to see someone from Ohio in here I used to live about 5 or 10 miles west of Columbus.
Any of you guys noticed that he CAN NOT ORDER ONLINE??????:rolleyes:
Punk - Get a relative or friend that has a credit card & have them order it for you.
SavageHenry
12-03-01, 10:18 AM
A 120-mm fan is probably too much for a cooling tower.
When I hooked a 120-mm Sunon (~100 cfm) up to my tower it was blowing out almost 1/2 gallon of water per day. After five or six hours of operation it looked like a small rain shower had occurred about 3 feet above the top of my tower. . . . Actual puddles of water on the floor.
I've got an 80-mm right now, and I'm getting a 92-mm to try and see how it works.
Wicked Klown
12-03-01, 10:41 AM
Originally posted by SavageHenry
A 120-mm fan is probably too much for a cooling tower.
When I hooked a 120-mm Sunon (~100 cfm) up to my tower it was blowing out almost 1/2 gallon of water per day. After five or six hours of operation it looked like a small rain shower had occurred about 3 feet above the top of my tower. . . . Actual puddles of water on the floor.
I've got an 80-mm right now, and I'm getting a 92-mm to try and see how it works.
Why was your fan blowing out water. How?
SavageHenry
12-03-01, 11:49 AM
In a cooling tower, evaporation (and thus cooling) is produced by pumping water out a showerhead while blowing air the opposite direction. This blows out some of the water vapor, taking with it much of the heat in the water.
The amount of water that evaporates off is proportional to the airflow. The more airflow, the more water evaporates and is blown out the top of the tower. In my tower, the 120-mm fan was blowing so much air that I was getting discrete droplets shooting out the top of the tower, as well as vapor!
The fan was producing too much airflow for my tower configuration.
Wicked Klown
12-03-01, 12:00 PM
Oh ok.
Originally posted by SavageHenry
A 120-mm fan is probably too much for a cooling tower.
When I hooked a 120-mm Sunon (~100 cfm) up to my tower it was blowing out almost 1/2 gallon of water per day. After five or six hours of operation it looked like a small rain shower had occurred about 3 feet above the top of my tower. . . . Actual puddles of water on the floor.
I've got an 80-mm right now, and I'm getting a 92-mm to try and see how it works.
Actually i've completely redesigned the cooling tower that i am building so that if it works as planned, it will reduce 90-99% of all water vapour coming out of the tower. I have been working on this design since September and think that it will work, so im going to try it with a 120mm fan:) When i am finished my tower and if it works correctly i will post pics of it on the forums.
ok, time for an update. After many hours of searching the net last night i finally found another place relatively close to me that i can buy 120mm fans from. These fans are Adda 120mm 108CFM FANS AND ARE ONLY $20 Canadian - $13 cheaper than Radioshack, also they are ball bearing, meaning that they should last longer than the sleeve bearing fans. Has anyone here used Adda fans? are they any good? I think i will probably get this one as it is cheaper and seems to be better than the radioshack one. What do u think?:beer: Oh ya, the place where they are at is AMK Services (http://www.amkcomputer.com/amkpc/index.html?catalog43_0.html)
ButcherUK
12-03-01, 05:55 PM
Sleeve bearings are quieter though, especially as the fan gets older - ball bearings tend to get noisier with time where sleeve bearings are quiet till they break.
Originally posted by ButcherUK
Sleeve bearings are quieter though, especially as the fan gets older - ball bearings tend to get noisier with time where sleeve bearings are quiet till they break.
true, sleeve bearings are quieter, but ball bearing fans usually tend to last longer than sleeves.
ButcherUK
12-03-01, 07:46 PM
Yes usually 50,000-80,000 hours MTBF vs about 25,000 hours. 25,000 hours is 3 years on 24/7 though...
ya, but 25,000 hours & 80,000 hours is a BIG difference! Anyways, so what do you guys think? Should i go with the Adda 120mm fan (108CFM)???????:confused:
Originally posted by Punk
ya, but 25,000 hours & 80,000 hours is a BIG difference! Anyways, so what do you guys think? Should i go with the Adda 120mm fan (108CFM)???????:confused:
panaflo has a really effcient fan
the H1A 120mm
Seems like a lot of airflow but in a custom designed system maybe you need it. Take the fan apart and apply a little high load skateboard oil. This should not effect the rpm as it is thin and will quite those noisy bearings. I have done this to mine. The bearings were dry prior to this.
I'd go with the YSTech or the Panaflow..
You'll need the best you can get and price shouldn't be a problem.
Originally posted by tsunami
I'd go with the YSTech or the Panaflow..
You'll need the best you can get and price shouldn't be a problem.
i can't get either of these fans, as no stores near me sell them and i am unable to order them online - i do not have a credit card, and i don't know anybody who i can borrow one from - my parents DO have a credit card but they still have to pay everything off on it before they can use it again, which probably wont be for a very long time. So, for now i am stuck with either getting the Radioshack or the Adda 120mm fan... (unless i am able to locate another source)
The Radio Shack fans are not that bad. They push about the same amount of air as a Panaflow L1A but make more noise. They have a sleeve bearing. I doubt that it is of the quality of a Panaflow sleeve bearing.
BTW, I have two Panaflow 120 mm L1As and a 51 CFM 92 mm Sunon on my cooling tower without sprites. With my tower, you can feel a strong plume of air 15" above the top of the tower. If your airflow is giving you sprites, you need a screen.
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