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This is just a short and simple guide for some of the newer guys looking to find cooling on the cheap or even some of the older guys who have never done it.
First off, thanks to sc0tty8 for leading me to these fans and BlackOmega over at OCN for writing the guide I used to repin the fans. I felt they left a few of the simpler things out for those that have never done this type of thing so I tried to make it as fool proof (read: m33p proof) as possible.
Tools: I used a tiny flat head jeweler’s screwdriver however any tiny pointed object would do.
Fan Specs:
. Mfr. Nidec
. P/N: TA 450DC B35502-35
. Size: 120mm x 120mm x 38mm
. Type: PWM (Pulse Width Modulation)
. Rated Voltage: 12V
. Operating Voltage: 4.0~13.40 VDC
. Input Current: 1.40A
. Speed: 3600 RPM
. Air Flow: 130 CFM
. Noise Level: 50 dBA
. Bearing System: Dual Ball Bearing
. Wire length: 14"
. Connector: 5-pin/4-wire connector
Why these fans? It’s pretty simple, they’re high CFM and pretty inexpensive comparatively speaking. I found the cheapest way to get them in bulk is to hit up EBay and search for Nidec Beta V, look for the listings with a best offer option and start with an offer around $5 each. I personally found some refurbished ones that arrived in what appears to be brand new condition for $6 each. The guy I bought from used the handle bread8global and shipped EXTREMELY fast. The more you buy the cheaper they’ll usually let them go.
So, great inexpensive fans, what’s the catch? These fans are fans used for dell servers and as such have a proprietary pinning scheme. Fear not though, it’s extremely simple to fix that.
What you should start with is something that looks like this…
What we want to accomplish is making them look like this….
(A standard PWM fan wire. Also notice the way the nubs are facing and on the right side of the connector, and the GIANT arrow on the upper right side)
To do that we simply take our small pointed object and depress the metal nubs in the center of the connector for each wire…
Once all 4 are depressed remove the wires by simply sliding them out of the connector.
Once you have all 4 wires removed from the connector you will most likely need to take that same screwdriver and bend that nub ever so slightly back up. I found this was easiest if I gently slid my jewelers flat head underneath the nub and pressed upwards. It doesnt take much pressure though so don't over do it. This will allow them to lock into place when you are re-inserting.
Lastly, with the connector facing the same way as before (nubs on right, as well as GIANT arrow on upper right) slide the wires back in from top to bottom. Order should be…
Blue (PWM)
White (Sense)
Red (12V)
Black (Ground)
(Refer to completed picture at beginning of guide if you're confused)
Once these are all snug, you’re set. Simply use them as you would any other fan.
I myself am using these fans on both of my rigs with my cm212 setup and have had 0 problems. They can be noisy, but due to being PWM you should be able to set your fan setting in your BIOS to “Energy Saving” mode or whatever the equivalent for your motherboard is and this will make them a lot less noisy.
First off, thanks to sc0tty8 for leading me to these fans and BlackOmega over at OCN for writing the guide I used to repin the fans. I felt they left a few of the simpler things out for those that have never done this type of thing so I tried to make it as fool proof (read: m33p proof) as possible.
Tools: I used a tiny flat head jeweler’s screwdriver however any tiny pointed object would do.
Fan Specs:
. Mfr. Nidec
. P/N: TA 450DC B35502-35
. Size: 120mm x 120mm x 38mm
. Type: PWM (Pulse Width Modulation)
. Rated Voltage: 12V
. Operating Voltage: 4.0~13.40 VDC
. Input Current: 1.40A
. Speed: 3600 RPM
. Air Flow: 130 CFM
. Noise Level: 50 dBA
. Bearing System: Dual Ball Bearing
. Wire length: 14"
. Connector: 5-pin/4-wire connector
Why these fans? It’s pretty simple, they’re high CFM and pretty inexpensive comparatively speaking. I found the cheapest way to get them in bulk is to hit up EBay and search for Nidec Beta V, look for the listings with a best offer option and start with an offer around $5 each. I personally found some refurbished ones that arrived in what appears to be brand new condition for $6 each. The guy I bought from used the handle bread8global and shipped EXTREMELY fast. The more you buy the cheaper they’ll usually let them go.
So, great inexpensive fans, what’s the catch? These fans are fans used for dell servers and as such have a proprietary pinning scheme. Fear not though, it’s extremely simple to fix that.
What you should start with is something that looks like this…
What we want to accomplish is making them look like this….
(A standard PWM fan wire. Also notice the way the nubs are facing and on the right side of the connector, and the GIANT arrow on the upper right side)
To do that we simply take our small pointed object and depress the metal nubs in the center of the connector for each wire…
Once all 4 are depressed remove the wires by simply sliding them out of the connector.
Once you have all 4 wires removed from the connector you will most likely need to take that same screwdriver and bend that nub ever so slightly back up. I found this was easiest if I gently slid my jewelers flat head underneath the nub and pressed upwards. It doesnt take much pressure though so don't over do it. This will allow them to lock into place when you are re-inserting.
Lastly, with the connector facing the same way as before (nubs on right, as well as GIANT arrow on upper right) slide the wires back in from top to bottom. Order should be…
Blue (PWM)
White (Sense)
Red (12V)
Black (Ground)
(Refer to completed picture at beginning of guide if you're confused)
Once these are all snug, you’re set. Simply use them as you would any other fan.
I myself am using these fans on both of my rigs with my cm212 setup and have had 0 problems. They can be noisy, but due to being PWM you should be able to set your fan setting in your BIOS to “Energy Saving” mode or whatever the equivalent for your motherboard is and this will make them a lot less noisy.
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