3-22 Sun Ultra 45 and Ultra 25 Workstations Service and Diagnostics Manual • May 2006
6. Disconnect the following power and signal cables from the motherboard
(
FIGURE 3-12):
â– I/O module signal and power cable at connector J3
â– I/O module USB cable at connector J36
â– DVD-dual drive cable at connector J11
â– Fan tray backplane cable at connector J20
â– Power supply cables at connectors J22, J28, J45 (P1, P2, and P5)
â– Hard drive signal cable connector J42
FIGURE 3-12 Disconnecting Motherboard Cables
7. Turn the motherboard latch 90 degrees counterclockwise (FIGURE 3-13).