System-board switches and jumpers, System-board, Switches – IBM 4190 User Manual

Page 30: Jumpers

background image

System-board

switches

and

jumpers

The

following

illustration

shows

the

switches

and

jumpers

on

the

system

board.

Boot block
recovery jumper

Clear CMOS jumper

SAS/SATA
controller
card

The

following

illustration

identifies

the

pins

on

a

jumper

and

shows

the

location

of

pin

1.

3

2

1

Pin 1 mark

Table

2.

Switch

and

jumper

settings

Component

Settings

Clear

CMOS

jumper

(JP3)

v

Pins

1

and

2:

Keep

CMOS

data

(default)

v

Pins

2

and

3:

Clear

the

CMOS

data,

which

clears

the

power-on

password

and

administrator

password

Boot

block

jumper

(JP4)

v

Pins

1

and

2:

Normal

(default)

v

Pins

2

and

3:

Boot

from

boot

block

16

IBM

System

x3250

M2

Types

4190

and

4194:

User’s

Guide

This manual is related to the following products:

4194