5-8 Sun Ultra 45 and Ultra 25 Workstations Service and Diagnostics Manual • May 2006
â– Hard drive signal cable to J4 on the hard drive backplane. (This cable also serves
as a cable clip over other cables).
FIGURE 5-5 Power Supply Cable Connections at Motherboard and Hard Drive Backplane
6. Inspect the power supply fasteners to verify that:
â– The power supply push bar is seated.
â– The power supply captive screw is tight.
7. Inspect the power supply cabling to verify that:
J22/P2
J20
J11
J3
J36
J42
J2
J28 (P1)
J45/P5
Power supply
P4
(not used)
Hard drive backplane
Fan tray backplane
I/O module
DVD-dual drive