Quote from: Geiger on June 05, 2015, 04:26:31 PM

Quote from: amelen on June 05, 2015, 03:16:22 PM

From a previous discussion, this was said to be the stock fan specs:

Dimension: 120*120*38mm
Voltage: 12V
Start voltage: ≧8V (Power ON/OFF)
Power consumption: 1600RPM 1.68W / 4000RPM 25.8W
Rated current: DutyCycle 100% @ 2.15A
Air Flow: 4000RPM @ 178.3CFM (Max be 239CFM)
Noise: 4000RPM @ 56.7 dB-A (Measured in a Non-EchoChamber)
Life Expectancy: 40,000 hrs @ 25℃ (May degrade faster at higher temperature)
Connector: 2510-4P

Also, I recently tried a dual 60CFM fan setup (one for push, one for pull), but it was clearly not powerful enough - temps were at 70C within a few minutes. This is what I used:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553008

I just ordered the following Delta and am hoping I can use it alone for just push:

Delta Electronics AFB1212SHE 120x120x38mm Cooling Fan, 151.85 CFM, 58 dBA, 3700 RPM, 1.06 AMP, PWM 4-pin connector.

I have the miners running in a temp controlled room with proper ventilation, which helps the temp's, but I'm still worried if the Delta might not be enough as 2x 60CFM was clearly not even close.

@amelen

That is a great find! Thank you. Please let me know what the results are!!!! Here's the fan on Amazon
http://www.amazon.com/gp/product/B004Y1HLA8/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B004Y1HLA8&linkCode=as2&tag=120mm-fans-20&linkId=5HKYNDGQB3P4D62Z

Just replaced the stock fans with the Delta's from the amazon link. A few notes:

- It's 4pin, but you still need to remove a piece on the connector to get it to fit in.
- For some reason, I can't get them to be flush against the metal of the S5 like the stock fans. There is always a hair-thin space.
- They are still pretty loud, but I'd say about 20-25% quieter than the stock fans. At full RPM, I'm seeing about 60dba, vs 75dba on the stock fans.
- They aren't cooling as well as the stock fans, but it might be acceptable. At stock frequencies, with 22C ambient, I'm getting ~61C on the Delta and was getting ~56C on the stock fan.