Service Procedures
Service Procedures
Digital PRIORIS XL Server
Digital PRIORIS XL Server
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MCS Logistics Engineering - Nijmegen
MCS Logistics Engineering - Nijmegen
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Main Logic Board Jumpers
Jumper pins allow to set specific server parameters. They are set by changing the pin location of jumper
blocks. A jumper block is a small plastic-encased conductor (shorting plug) that slips over the pins. To
change a jumper setting, remove the jumper from its current location with the fingers. Place the jumper
over the two pins designated for the desired setting. Press the jumper evenly onto the pins. Be careful not
to bend the pins.
The following table lists the main logic board jumpers and factory-default settings. Figure 3 - 4 shows the
locations of the main logic board jumper pins. Note that the square pin of each jumper block is pin 1.
CAUTION
Do not touch any electronic component unless you are safely grounded. Wear a
grounded wrist strap or touch an exposed metal part of the server’s chassis. A static
discharge from the fingers can result in permanent damage to electronic components.
Main Logic Board Jumper Settings.
Setting in
bold italics
are factory defaults.
Feature
Description
Setting
VGA IRQ 9 select
Enable
Disable
J9, jumpered
J9, open
Onboard VGA
Enabled
Disabled
J17, jumpered
J17, open
Enable wide SCSI
Enabled
Disabled
J22, jumpered
J22, open
CPU number select
Single CPU
Multi-CPU
J24, pins 1 and 2 open
J25, pins 1 and 2 open
J24, pins 2 and 3 jumpered
J25, pins 2 and 3 jumpered
CPU type select
Reserved
Intel
J27, jumpered
J27, open
Display type
Color
Mono
J37, jumpered
J37, open
Password clear
Normal mode
Password clear (MFG test)
J38, open
J38, jumpered
(1)
Recovery mode
Normal
Recovery mode
J39, open)
J39, jumpered
BIOS upgrade
Enable
Disable
J41, jumpered
J41, open
Boot block writeable
Disable
Enable
J50, pins 1 and 2 jumpered (2)
J50, pins 2 and 3 jumpered
(1) “ROM Base Setup” must be enabled
(2) Disabling this jumper prevents corruption of the boot block when a boot block update is not required
