AXIOMTEK IMB540, User Manual

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IMB540 User’s manual
8 Board and Pin Assignments
2.3.1 PCIe x16 slot bifurcation (JP1)
Use these jumpers (3x1-pin p=2.54mm) to set signal of PCIe x16 slot.
2.3.2 AT/ATX Mode Select (JP3)
This 3x1-pin p=2.54mm jumper allows you to select AT or ATX power mode.
2.3.3 Clear CMOS (SW1)
Pressing the tact switch can restore BIOS optimal defaults.
(The button is next to the Front Panel Header connector)
CN14 JP1
PCIe 1 x16
PCIe 4 x0 1-2
(Default)
PCIe 1 x8
PCIe 4 x8
2-3
Function Setting
AT mode (Default) 1-2 close
ATX mode 2-3 close