Ibm 4190 Manuel d'utilisateur télécharger pdf (Page 30)

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.

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

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Ibm 4190 Manuel d'utilisateur Page 30