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Sony G90 Fan Mod

      (Page 4)

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Replacing the front fan:

The front fan replacement is not as easy as the four rear ones and needs some step-by-step instructions as follows:

The idea was to use a larger fan than the tiny 60x60mm (18CFM) located behind the PA board.  Since larger fans do not have to spin as fast as smaller ones to move the same amount of air, they are quieter. I found SilenX IXP-52-14 (24CFM) fan that is considerably better and very silent:

http://www.silenx.com/ixtremaprofans.asp?sku=ixp-52-14

SKU: IXP-52-14
Rated dBA: 14 dbA
Dimensions:80x80x15mm
RPM: 1800 rpm
Airflow: 24 CFM
nominal Voltage: 12V
Current Draw: 0,09A
Power Consumption: 1.08W
Bearings: Hybrid Immersion

However because this fan is larger than the one it replaces, it cannot been place in the Sony original 60x60mm fan position behind the PA board:


Instead, we will install it in the front like this:


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