Compaq AlphaServer 160 Guide de l'utilisateur télécharger pdf (Page 172)

A-2 AlphaServer GS80/160/320 User’s Guide

A.2 HPM Jumpers

Table A–2 lists hierarchical switch power manager (HPM) jumpers and

their functions. The HPM module has three 2-position jumpers, none of

which are normally installed.

Table A–2 HPM Jumpers

Jumper Function, When Installed

Flash_Write_Inhibit. Prevents the hardware from writing to

flash memory.

J3 Force_FSL. Causes the firmware to remain in the fail-safe

loader code after HPM reset.

HS_CSB_ID0. Sets ID0 of the microprocessor’s CSB address

field to a 1.

A.3 Standard I/O Module Jumpers

Table A–3 lists standard I/O module jumpers and their functions. The

jumper station is three-pronged and the installed position is indicated

by a silkscreen connection.

Table A–3 Standard I/O Module Jumpers

Jumper Function, When Installed

J12 Forces SRM console defaults.

J13 Forces COM1 bypass.

J17 SCM remains in fail-safe loader code upon reset.

J18 Forces the SCM defaults.

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Compaq AlphaServer 160 Guide de l'utilisateur Page 172