2-18
H8DM8-2/H8DME-2 User's Manual
Onboard Speaker Enable/
Disable
The JD1 header allows you to use
either an external speaker or the in-
ternal (onboard) speaker. To use the
internal onboard speaker, close pins
6 and 7 with a jumper. To use an
external speaker, remove the jumper
and connect the speaker wires to pins
4 (+5V) and 7 (control signal). See the
table on the right for settings and the
table associated with the Power LED/
Keylock/Speaker connection (previ-
ous section) for jumper settings.
Onboard Speaker Enable/Disable
Pin Defi nitions (JD1)
Pins Defi nition
6 and 7
Jump for onboard speaker
4 and 7
Attach external speaker wires
PCI-X Slot Speed
Jumpers JPX1A and JPX1B on the
H8DM8-2/H8DME-2 can be used to
change the speed of PCI-X slots #1&2
and PCI-X slots #3&4, respectively.
See the tables on the right for jumper
settings.
PCI-X Slot Speed 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 slots #1
and #2. JPX1B controls the speed for PCI-X slots
#3 and #4. The default setting for both is Auto.
Note:
Pins 4-7 are used only for the on-
board speaker.
SCSI Controller Enable/
Disable (H8DM8-2 only)
Jumper JPA1 is used to enable or dis-
able the onboard SCSI controller. The
default setting is on pins 1-2 to enable
SCSI. See the table on right for jumper
settings.
SCSI Enable/Disable
Jumper Settings (JPA1)
Jumper Setting Defi nition
Pins 1-2
Enabled
Pins 2-3
Disabled
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