12volts on bios ?
- Thread starter mitexx
- Start date
mickypheonix
Honorable
- Mar 9, 2014
- 4,072
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Hi mitexx
for a pump i recommend not hooking the pump to your motherboard but rather 12v direct from your psu via molex to 4pin 12v
with a cable such as this
for a pump i recommend not hooking the pump to your motherboard but rather 12v direct from your psu via molex to 4pin 12v
with a cable such as this
Chassis and CPU fans are controlled by pulse-width modulation, not amplitude modulation. The three pin fan headers contain a +12 volt supply, GND, and pulse feedback (for tracking RPM). The four pin fan headers contain a +12 volt suppy, GND, pulse feedback, and PWM control (for controlling fan speed).
Given that many pumps draw more current than fans, it is somewhat unwise to connect them directly to the motherboard. Do what mickypheonix suggested and hook it directly up to the 12 volt rail on the power supply via a MOLEX connector.
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