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M440LX Server System Product Guide
11
6 Server Resources
Warnings and Cautions........................................................................... 147
Tools and Supplies You Need................................................................. 147
Memory Module Resources.................................................................... 148
Memory Regions ............................................................................... 150
ECC Memory..................................................................................... 151
System Board Resources ......................................................................... 157
Video Memory DRAM ..................................................................... 157
I/O Addresses and Resources ......................................................... 159
Interrupts........................................................................................... 161
Flash ROM......................................................................................... 162
7 Power System
Power System Configurations ................................................................ 163
Power System Control Signals................................................................ 165
Power Enable/Disable (PON).......................................................... 165
Remote Sense Connections............................................................... 165
Load Share Connection..................................................................... 165
Output Power Connections.............................................................. 165
Power Good Circuit.......................................................................... 166
VA Monitor Circuit........................................................................... 166
I²C Communication Circuit.............................................................. 166
System Current Monitor................................................................... 167
Power Supply FAULT ...................................................................... 167
Power Supply Presence DETECT .................................................... 167
Power Share Backplane Interconnections .............................................. 168
Power Supply to Powershare Board Connections.......................... 168
Backplane to System Board Power Interface .................................. 169
Backplane to Peripheral Interface .................................................... 169
Backplane to System Board Control Connections.......................... 170
Power Supply Input Voltages ................................................................. 170
Power Supply Output Voltages.............................................................. 171
Server Current Usage .............................................................................. 172
Calculating Power Usage ........................................................................ 174