Intel SR1670HV Service Guide - Page 57
Main Power Connectors 20-pin PWR1, 20-pin PWR2, Peripheral Power Connector 4-pin PWR3, System Panel
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Jumpers, Connectors, and LEDs 5.2.7 Main Power Connectors (20-pin PWR1, 20-pin PWR2) The server board provides dual 20-pin ATX Main Power connectors. Both connectors have identical pin-outs and are not used concurrently. Figure 71. Main Power Connectors 5.2.8 Peripheral Power Connector (4-pin PWR3) The server board provides a 4-pin peripheral power connector. This connector can supply power as needed to add-in peripheral devices such as hard drives or optical drives. This connector has the following pin-out and board location: +12 V GND GND +5V Figure 72. Peripheral Power Connector (4-pin PWR3) 5.2.9 System Panel Connector (20-pin PANEL1) This connector supports several chassis-mounted functions. 42 Intel® Server System SR1670HV Service Guide