Service manual

4-20 AlphaServer GS80/160/320 Service Manual
4.4.2 Module Color Codes
All modules that plug into a QBB are color-coded.
Figure 4– 4 Slot Color Codes
PK2244
CPU 2
(Blue)
CPU 0
(Blue)
Memory 3
(Gray)
Memory 1
(Gray)
PSM
(Orange)
Clock
Splitter
(Green)
Auxiliary
Power
(Red)
Main
Power
(Yellow)
Directory
(White)
CPU 3
(Blue)
CPU 1
(Blue)
Memory 2
(Gray)
Memory 0
(Gray)
Global
Port 1
(Purple)
Global
Port 0
(Brown)
Table 4– 7 Module Color Codes
Color Code Module
Yellow Main power
Red Auxiliary power
Orange Power system manager (PSM)
Blue CPU
Gray Memory
White Directory
Green Clock splitter
Light blue Local I/O riser (GS80 only)
Brown Global port for rear QBBs
Purple Global port for front QBBs