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How to replace exhaust fan on Compaq Presario SR1103VM

\015 There are 4 screws around the fan unit but I cannot figure out how to remove the main case to replace the fan. If I can open the main housing of the computer I would be able to replace the fan\015

Answers :

What kind of pc are u using plz? is the maain case with screws
If I am not wrong then it is the SMPS fan and even if you would be able to open the cover, the fan would not be visible as it is inside the SMPS. Again you would have to open the SMPS to replace it. Please proceed if you have neough idea of SMPS connection.BTW ,why do you want to replace the fan ?Has it stopped working or what ?Because branded PCs are shipped with good quality SMPS .If you are not facing any problem then, please avoid opening the SMPS.Just a suggestion, don't mind.
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