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17 Jun 2012  

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1

Quote   Quote: Originally Posted by linnemeyerhere View Post
karlog22, welcome to SF.
The top fan is the PSU fan and it's spinning either for high load or high temps. Looking at the dust build up I would hit the intake fans, mobo, and PSU with compressed air. I suspect that a high amount of dust is creating the noise as the PSU fan is working to cool. Oh and the rear case fans are in push/pull arrangement. Do you have a front mounted intake fan and or how and where is the cool air coming into the case?
hi.. there are no front mounted fans.. the fans shown in the pics are the only ones present.. i've no idea where is the cool air coming from.. i bought this as assembled one.. few days ago my maintainence guy replaced the 1st of the rear twin fans as it stopped working.. since then.. the new one's been noisy..i don't remember in which direction was the earlier one setup..
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