Question about MSI R5450-MD1GD3H/LP RADEON HD 5450, (1 GB) 128-bit DDR3 PCI Express 2 0 x16 HDCP Ready Low Profile Vide Video Card
Use a multimeter. Make sure it is set to dc volts. If it has a voltage scale, set it to the 20 volt scale.
Power up your card in the computer only for a few seconds, while you take the reading. You don't want to make your card's heatsink too hot without the fan going.
When it's powered up, hold a multimeter's probes on the fan's pin header pins(one on each pin), be carefull not to short the two pins together.
The meter will give you the voltage reading.
If you get a positive voltage reading, the red probe will be on the positive pin.
If you get a negative voltage reading, the black probe will be the positive pin.
Posted on Apr 08, 2011
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Posted on Jan 02, 2017
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