System-board switches and jumpers

3 Ethernet connector 1

7 SW1 (NMI button)

4 USB connectors 1 and 2

The following illustration shows the switches and jumpers on the system board.

Microprocessor

Heatsink Orientation

DIMMs

The following table describes the jumpers on the system board.

Table 3. System board jumpers

Jumper number	Jumper name	Jumper setting

JP1	Clear CMOS jumper 1	v Pins 1 and 2: Keep CMOS
		data (default).
		v Pins 2 and 3: Clear CMOS
		data (including power-on
		password and
		administrator password)

JP6	Boot block jumper 2	v Pins 1 and 2: Boot from
		primary BIOS page
		(default) .
		v Pins 2 and 3: Boot from
		backup BIOS page.

Notes:

1.If no jumper is present, the server responds as if the pins are set to 1 and 2.

2.Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and 3 before the server is turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is turned on. This can cause an unpredictable problem.

Chapter 4. Server controls, LEDs, and power 21

6529, 6526, 6522, 6523, 6528 specifications

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Lenovo 6526, 6523, 6524, 6530, 6525, 6522, 6528, 6529 manual System-board switches and jumpers

Models: 6529 6526 6522 6523 6528 6525 6530 6524