Arctic Cooling F12 PWM 120mm Case Fan £3.99 or £10.95 for 3 fans @ ebay/afterhourscomputersltd - HotUKDeals
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Arctic Cooling are well known for the quality of their case fans and these are very good value in my opinion, especially when you consider they are PWM fans, which tend to be slightly more expensive than none-PWM fans.

Also the seller has a special offer on right now - Buy 3, save £1. That's just £3.65 per fan!
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2y, 4m agoFound 2 years, 4 months ago
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#1
these any good for the microservers? looking to lower the DB coming from it
#2
got 4 of these pwm linked, they all spin at the same speed to stay in tune to keep the noise level lower.
#3
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it

These fans are designed to be quiet, but it's not possible for me to answer your question without knowing how loud the fans you're currently using are. Do you happen to know the name of them?
#4
Blades are a little fragile and can be loud if you use them at full whack in a radiator but for the money they are really good value. I have 6 of the non pwm on radiators and they do fine for me with a fan controller. I had to replace 2 after cleaning them as I broke the blades, they must have fractured when I was cleaning them and when I cranked them up they broke. I would buy them again but am warry about snapping them when cleaning. Dont think you will get better for the price, not fluid bearing anyway
1 Like #5
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it

You may need to do some minor surgery as the wires to the connector will need switching round as they are not standard.
I have a couple of Microservers (N36L & N40L) and looked into doing this but found most of the noise was coming from the PSU.
I replaced the PSU fan with one of these after reading this
Mine is quieter now but not as much as I would like.
A fanless power supply is the next step, Google PicoPSU for that.

Edited By: CrazyBob on Jul 15, 2014 20:02
#6
These fans are awesome. I started with the F8 in my previous case and now I have the F12 in my current case. Probably the best budget fan.
#7
I could have sworn I bought one of these for around £3.24 on Kikatek 2 months ago..
1 Like #8
Doh I just bought the same fan, same seller for £4.45 on Monday. That's 45p I coulda spent on some crisps!

f2k8
I could have sworn I bought one of these for around £3.24 on Kikatek 2 months ago..

Kikatek still have the non-pwm for £3.34 which you prob got, the PWM version on there is £5.98.
#9
Quite loud and aren't the best, but good value.
#10
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it


The answer is NO, the microserver needs to detect a fan speed of at least 700rpm (or there abouts) if it doesn't it shuts down. I tried one of these and it shut down. you will need one rated at about 2000rpm for it to function as the microserver doesn't run it at full speed. Also please note the microserver wiring is not standard also, so you need to modify the plug of a standard fan.
#11
Great Price just to keep in the components cupboard as spares. 3 purchased and heat added!
#12
OrribleHarry
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it

The answer is NO, the microserver needs to detect a fan speed of at least 700rpm (or there abouts) if it doesn't it shuts down. I tried one of these and it shut down. you will need one rated at about 2000rpm for it to function as the microserver doesn't run it at full speed. Also please note the microserver wiring is not standard also, so you need to modify the plug of a standard fan.

Disconnecting the PWM wire will make it run full speed no matter what, this gets up to 1700rpm so shouldn't trip the automatic shutdown.

It may or may not be quieter than the stock fan at full blast though!
#13
bobbyzero
OrribleHarry
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it

The answer is NO, the microserver needs to detect a fan speed of at least 700rpm (or there abouts) if it doesn't it shuts down. I tried one of these and it shut down. you will need one rated at about 2000rpm for it to function as the microserver doesn't run it at full speed. Also please note the microserver wiring is not standard also, so you need to modify the plug of a standard fan.

Disconnecting the PWM wire will make it run full speed no matter what, this gets up to 1700rpm so shouldn't trip the automatic shutdown.

It may or may not be quieter than the stock fan at full blast though!


It still trips.
#15
Yup, their not gona beat Noose blockers for static pressure and db or anything of similar calibre but if you drop the speed to about 800-900 rpm they are fairly quiet and still push enough aor through a rad. Mine are on 2x 240mm slim Magicool rads, 1 in push/pull and 1 rad with just pull and they keep GTX 480 SLi and an i7 930 @4.4 Ghz at decent temps.

Not the best fan by a long shot but the fans that beat these are costing 3 to 4 times as much. If your on a tight budget and can lower the speed of these fans using a controller or speedfan using headers then I bet you wouldnt beat these for the money. They are a budget fan, not a luxury, high end leader, they are not AP- 15
#16
OrribleHarry
bobbyzero
OrribleHarry
jackvdbuk
these any good for the microservers? looking to lower the DB coming from it

The answer is NO, the microserver needs to detect a fan speed of at least 700rpm (or there abouts) if it doesn't it shuts down. I tried one of these and it shut down. you will need one rated at about 2000rpm for it to function as the microserver doesn't run it at full speed. Also please note the microserver wiring is not standard also, so you need to modify the plug of a standard fan.

Disconnecting the PWM wire will make it run full speed no matter what, this gets up to 1700rpm so shouldn't trip the automatic shutdown.

It may or may not be quieter than the stock fan at full blast though!

It still trips.

PWM wire (blue) or RPM wire (yellow)?

I did exactly that to replace the 3K rpm Delta fan in a larger HP server that used PWM and minimum speed checks.
#17
bobbyzero

PWM wire (blue) or RPM wire (yellow)?

I did exactly that to replace the 3K rpm Delta fan in a larger HP server that used PWM and minimum speed checks.

Bobby im planning to do the exact same thing in a HP G6 server tonight! which run like 10-15k RPM fans noisy as hell, can you confirm which server you done it in?
#18
DealFreak
Doh I just bought the same fan, same seller for £4.45 on Monday. That's 45p I coulda spent on some crisps!

f2k8
I could have sworn I bought one of these for around £3.24 on Kikatek 2 months ago..

Kikatek still have the non-pwm for £3.34 which you prob got, the PWM version on there is £5.98.

Ohh! What's the difference? Thanks..
#19
bought. heat.
#20
f2k8

Ohh! What's the difference? Thanks..

Pulse Width Modulation (PWM) is just another way to control fan speed. Its done via signal as opposed to controlling it via voltage.
1 Like #21
DealFreak
bobbyzero

PWM wire (blue) or RPM wire (yellow)?

I did exactly that to replace the 3K rpm Delta fan in a larger HP server that used PWM and minimum speed checks.

Bobby im planning to do the exact same thing in a HP G6 server tonight! which run like 10-15k RPM fans noisy as hell, can you confirm which server you done it in?

It was a Proliant ML115 G5 - quite old now but still worked.

The stock fan had a non-standard connection so I used a small screwdriver to change the fan headers over. Just pop out the crimped ends from each fan cable and swap them across. Take 'before' photos of both fans so you have a reference of the order.

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