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ix
PHP I/O Baseboard.......................................................................................................... 156
Removing the PHP I/O Baseboard .......................................................................... 156
Reinstalling the PHP I/O Baseboard........................................................................ 156
MidPlane .......................................................................................................................... 158
Removing the Midplane........................................................................................... 158
Reinstalling the Midplane......................................................................................... 158
AC Filter and Cable.......................................................................................................... 158
Removing the AC Filter and Cable........................................................................... 158
Reinstalling the AC Filter and Cable ........................................................................ 159
Peripheral Bay.................................................................................................................. 159
Removing the Peripheral Bay .................................................................................. 159
Reinstalling the Peripheral Bay................................................................................ 159
Peripheral Bay Backplane ................................................................................................ 160
Removing the Peripheral Bay Backplane................................................................. 160
Reinstalling the Peripheral Bay Backplane............................................................... 161
Peripheral Bay Blindmate Board....................................................................................... 162
Removing the Peripheral Bay Blindmate Board ....................................................... 162
Reinstalling the Peripheral Bay Blindmate Board..................................................... 162
14 Removable Media Drives: Installing/Removing/Replacing
Warnings and Cautions .................................................................................................... 165
Tools and Supplies You Need .......................................................................................... 165
Equipment Log ........................................................................................................ 165
Diskette Drive................................................................................................................... 165
Removing the Diskette Drive ................................................................................... 166
Replacing the Diskette Drive.................................................................................... 166
CD-ROM Drive ................................................................................................................. 168
Removing the CD-ROM Drive.................................................................................. 168
Replacing the CD-ROM Drive.................................................................................. 170
15 Midplane: Description/Voltages
Warnings and Cautions .................................................................................................... 171
Midplane Features............................................................................................................ 171
I
2
C Bus .................................................................................................................. 171
Detection Signals..................................................................................................... 172
5 V Quick Discharge................................................................................................ 172
Midplane Connectors........................................................................................................ 173
Grand Connector..................................................................................................... 174
Grand Connector Power Module 1 Connector J2..................................................... 177
Grand Connector Power Module 2 Connector J5..................................................... 178
Memory Board 1 & 2 Interface Connector J6 & J7................................................... 179
Power Supply Connectors J8, J9, & J10.................................................................. 181
Peripheral Power Connector J11 ............................................................................. 181