HP xw4400 Service And Technical Reference Manual page 7

Fault notification and recovery ........................................................................................... 50
4 Removal and replacement procedures
Service considerations ....................................................................................................................... 54
Cautions, warnings, and safety precautions ...................................................................... 54
Electrostatic discharge information .................................................................................... 54
Tools and software requirements ...................................................................................... 56
Screws ............................................................................................................................... 56
Special handling of components ........................................................................................ 57
Customer Self-Repair ......................................................................................................................... 59
Predisassembly procedures ............................................................................................................... 60
System board components ................................................................................................................. 61
System board architecture ................................................................................................ 62
Steps for removal and replacement of components ........................................................................... 63
Disassembly order ............................................................................................................ 63
Security lock (optional) ...................................................................................................... 64
Cable lock (optional) .......................................................................................................... 65
Universal chassis clamp lock (optional) ............................................................................. 65
Side access panel ............................................................................................................. 66
Front Bezel ....................................................................................................................... 67
Bezel blanks ..................................................................................................................... 67
Hood sensor (Smart cover sensor) .................................................................................... 68
Solenoid hood lock (Smart cover lock) (optional) .............................................................. 69
Front panel I/O device assembly ...................................................................................... 69
Power button ..................................................................................................................... 71
System speaker ................................................................................................................. 71
Power supply ..................................................................................................................... 72
System fan assembly ......................................................................................................... 73
Memory .............................................................................................................................. 74
ENWW
Clearing Passwords .......................................................................... 50
Cable lock provision (optional) .......................................................................... 50
Security lock (optional) ...................................................................................... 50
Universal chassis clamp lock (optional) ............................................................ 50
Hood lock (Smart cover lock) (optional) ............................................................ 50
Hood sensor (Smart cover sensor) (optional) ................................................... 50
Access panel key lock ....................................................................................... 50
Drive Protection System .................................................................................... 51
ECC fault prediction and prefailure warranty .................................................... 51
Thermal sensor ................................................................................................ 51
Generating static ............................................................................................... 54
Preventing electrostatic damage to equipment ................................................. 55
Personal grounding methods and equipment .................................................. 55
Grounding the work area ................................................................................... 55
Recommended materials and equipment ......................................................... 56
Cables and connectors ..................................................................................... 57
Hard drives ........................................................................................................ 58
Lithium coin cell battery ..................................................................................... 58
Memory module features .................................................................................. 74
Memory module requirements .......................................................................... 74
Required loading order ...................................................................................... 75
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