Using the screwdriver, short each of the four sets of pins in the header block. It will have between 6 and 9 pins, possibly with a NO CONNECT at the end of the top row.Ĭonnect power. The plastic around the header block is frequently blue or green. Position is variable, but generally near the bottom of the case toward the front of the unit. Locate the front panel header on the motherboard. The pair is color-coded and will be immediately obvious when you remove the faceplate.įrom there, grab a small screwdriver (standard or Phillips - doesn't matter). The only pair you're truly worried about here is the power button. Generally, Dell has 3 pairs of wires: 1 for the power button, 1 for the power LED, and 1 for the HDD activity LED. I have seen some videos of powering on the motherboard but in this motherboard it doesn't look like the videos. I would like to know if there is a way to turn on the motherboard without the power button. The problem is that my desktop computer (a gateway desktop) have a different power button. I recently bought a dell optiplex 740 motherboard to replace my old motherboard.
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