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The UP2000 Motherboard has four sets of programmable jumper blocks,
located at J27, J29, J34, and J36 as shown in Figure 2-2.
Alpha Slot B Module CPU speed and L2 cache size determine which
configuration settings are used. Configuration setting selections are
shown in Figure 2-3.
Figure 2-2
Location of Configuration Jumper Blocks
J43
Primary Alpha Slot B Module Debug
Port Connector
J44
Power Button Connector
J45
Halt Button Connector
J46
SCSI LED Connector
J47
Reset Button Connector
Table 2-1
UP2000 Motherboard
Jumper and Connector Component List (Continued)
Comp.
No.
Specification
Comp.
No.
Specification
Note: Connector J5 includes the COM1 and COM2 ports. COM1 is reserved for a serial console device. Connect all other
serial devices to COM2 or any expansion serial ports.
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J34
J36
J29
J27
L2 Cache size
selection Jumper
Block (J36)
CPU Speed
selection jumper blocks
(J27, J29, and J34)
NOTE: All three CPU Speed
Selection jumper blocks
must be set correctly to
implement a particular
speed rating.