Supported operating systems.......................................................................................................................................129
System battery specifications.......................................................................................................................................129
Memory specifications...................................................................................................................................................130
Drives............................................................................................................................................................................... 130
Ports and connectors specifications.............................................................................................................................131
USB ports...................................................................................................................................................................131
Internal Dual SD Module .......................................................................................................................................... 131
PERC controller cards...............................................................................................................................................131
Mezzanine cards.......................................................................................................................................................132
Particulate and gaseous contamination specifications ....................................................................................... 133
Standard operating temperature............................................................................................................................ 134
Expanded operating temperature...........................................................................................................................135
Thermal......................................................................................................................................................................135
System ID and status LED indicator codes..................................................................................................................137
Power button LED..........................................................................................................................................................138
Drive indicator codes......................................................................................................................................................138
Using system diagnostics.............................................................................................................................................. 139
Contacting Dell................................................................................................................................................................ 141
Documentation feedback............................................................................................................................................... 141
Receiving automated support with SupportAssist .................................................................................................... 141
Accessing system information by using QRL.............................................................................................................. 142
Quick Resource Locator for the PowerEdge MX840c sled...................................................................................... 142
Recycling or End-of-Life service information..............................................................................................................142
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Contents