Having problems with your Sony VAIO VGC-RB40 PC Desktop ?

My sony vgc-rb40 will not boot bios with cpu fan connected

\015 My sony vgc-rb40 will not boot bios with cpu fan hooked up to the molex connector, but will boot bios with chassis fan only, which immediately causes cpu meltdown around 185 degrees fahrenheit. also, chassis fan and cpu fan run extrememly high rpm on power up and will not return back to normal rpm, which results in bios not booting. please help if possible.\015

Answers :

Mostly all fans are 12V DC try connecting all the fans directly to SMPS of the system i.e the red and the black wire
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