Sun Microsystems Netra 240, Service Manual

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103
C H A P T E R
6
System Board Jumper Settings
This chapter contains information on default jumper settings. This information
enables you to restore the default system jumper configurations if required. See
FIGURE 6-1
for the jumper locations. The default jumper settings are listed in
TABLE 6-1
.
Caution – Changing the setting for JP1 could cause damage to the server.
Caution – Do not change the settings for the JP5 jumper. Only service personnel
should modify the settings for this jumper.
Note – Illustrations might contain optional components that are not available on all
standard configurations of the Netra 240 server.
TABLE 6-1
Default Jumper Settings
Jumper ID Default Setting Additional Information
JP1
i
1-2 Fitted
3-4 Fitted
5-6 Not fitted
7-8 Not fitted
9-10 Fitted Processor core voltage. Do not alter this jumper
setting.
JP2 1-2 Not fitted ALOM Flash ROM swap halves. Only service
personnel should modify this setting. Fitting a
jumper affects the swap.
JP3 1-2 Not fitted ALOM reset. Used only for testing the system.