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System board diagrams - IBM System x3500 (Type 7977)

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Abstract

System board diagrams - IBM System x3500 (Type 7977)

Content

Contents

System-board internal connectors and switches
System-board LEDs
System-board external connectors
SAS backplane
Related information (HMM)


System-board internal connectors and switches

The following illustration shows the internal connectors on the system board:

system-board internal connectors and switches

Switch number
Switch description
1

Boot block:

  • When the switch is in the OFF position, this is normal mode.
  • When the switch is in the ON position, this enables the system to recover if the BIOS code becomes damaged.
2

Clear CMOS:

  • When the switch is in the OFF position, this is normal mode. This keeps the CMOS data.
  • When this switch is toggled to ON position, this clears the CMOS data, which clears the power-on password and administrator password.

Notes:

1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all power cords and external cables.

2. Any system-board switch or jumpers blocks that are not shown in the illustrations in this document are reservered.

System-board LEDs

The following illustration shows the switches and LEDs on the system board:

system-board LEDs

System-board external connectors

The following illustration shows the external input/output connectors and the NMI switch on the system board:

System-board external connectors

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SAS backplane

The following illustration shows the connectors on the SAS backplane:

SAS backplane

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Related information (HMM)

Problem Determination and Service Guide - IBM System x3500 (Type 7977)

 

 

Document Location

Worldwide

Operating System

System x:Operating system independent / None

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Document Information

Modified date:
24 January 2019

UID

ibm1MIGR-5070452

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