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H8DMR-82/H8DMR-i2 User's Manual
PCI-X Slot Freq. Select
Jumpers JPX1A and JPX1B on the
H8DMR-82/H8DMR-i2 can be used to
change the speed of PCI-X slots 6 and
PCI-X slot 7, respectively. See the
table on the right for jumper settings.
PCI-X Slot Frequency Select
Jumper Settings (JPX1A/JPX1B)
Jumper Setting Defi nition
Open
Auto
Pins 1-2
PCI-X 66 MHz
Pins 2-3
PCI 66 MHz
Note:
JPX1A controls the speed for PCI-X slot #6 and
JPX1B controls the speed for PCI-X slot #7. The default
setting for both is Auto.
Note:
When enabled, the user needs to
write their own application software in or-
der to disable the Watch Dog timer.
Watch Dog
JWD controls Watch Dog, a system
monitor that takes action when a soft-
ware application freezes the system.
Jumping pins 1-2 will cause WD to
reset the system if an application is
hung up. Jumping pins 2-3 will gen-
erate a non-maskable interrupt signal
for the application that is hung up.
See the table on the right for jumper
settings. Watch Dog can also be
enabled via BIOS.
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2
Reset
Pins 2-3
NMI
Open
Disabled
I
2
C to PCI Enable/Disable
The JI
2
C1/2 pair of jumpers allows
you to connect the System Manage-
ment Bus to the PCI expansion slots.
The default setting is closed (on) for
both jumpers to enable the connec-
tion. Both connectors must be set the
same (JI
2
C1 is for data and JI
2
C2 is for
the clock). See the table on right for
jumper settings.
I
2
C to PCI Enable/Disable
Jumper Settings
(JI
2
C1/2)
Jumper Setting Defi nition
Closed
Enabled
Open
Disabled
