Page 6
AM-6000 Service Manual
Rev. A02
AM-176 Board Configuration
Your AM-176 board has been factory tested and shipped with its configuration jumpers set in their
standard default positions. Only two areas on the board may require you to change jumper settings:
•
Memory size select (JP4)
•
Enabling or disabling the supply of SCSI bus termination voltage (JP3)—default set at enabled.
The AM-176 board is shown in Figure 6 with all of its jumpers in their default positions. (The illustration
does not show all components on the board.)
P1
DISC
JP1
T2
ALPHA MICROSYSTEMS AM-176-00 Rev C00
ETHERNET PORT
P4
P3
P2
P5
JP2
TO AM-301-10
PROGRAM
DO NOT USE
P6
TO AM-301-10
CACHE SIMM
LOW BANK 0
LOW BANK 1
HIGH BANK 0
HIGH BANK 1
J1
J2
J3
J4
J5
P8
SERIAL
P9
+12V
P7
+5V
JP3
FAN
JP10
JP9
JP8
JP6
33
25
18
32
XCLK
-
+
JP5
D1 D2 D3
TX
RX
CD
JP7
CDIS
MDIS
68060 CPU
WIDE
SCSI
NARROW
SCSI
MEMORY CONFIGURATION
SEE TABLE 2
TERM POWER
JP6
TO
AM-301-10
PIN 1
PIN 1
66
50
PIN 1
BANK 0 BANK 1
JP4
Figure 6: AM-176 Board Configuration
