Dell PowerEdge 6850 Troubleshooting Guide Page 7
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I/O Connectors
Dell™PowerEdge™6850SystemsInstallationandTroubleshootingGuide
Serial Connector
Video Connector
USB Connectors
Integrated NIC Connectors
Network Cable Requirements
I/O connectors are the gateways that the system uses to communicate with external devices, such as a keyboard, mouse, printer, or monitor. This section
describes the various connectors on your system. If you reconfigure the hardware connected to the system, you may also need the pin number and signal
information for these connectors. FigureB-1 illustrates the connectors on the system.
Figure B-1. I/O Connectors
TableB-1 shows the icons used to label the connectors on the system.
Table B-1. I/O Connector Icons
Serial Connector
Serial connectors support devices such as external modems, printers, and mice that require serial data transmission. The serial connector is also used by the
BMC to provide remote access to the system. The serial connector uses a 9-pin D-subminiature connector.
Serial Connector Autoconfiguration
The default designation of the integrated serial connector is COM1. When you add an expansion card containing a serial connector that has the same
designation as the integrated connector, the system's autoconfiguration feature remaps (reassigns) the integrated serial connector to the next available
designation. Both the new and the remapped COM connectors share the same IRQ setting. COM1 and COM3 share IRQ4, while COM2 and COM4 share IRQ3.
Before adding a card that remaps the COM connectors, check the documentation that came with the software to make sure that the software can
accommodate the new COM connector designation.
FigureB-2 illustrates the pin numbers for the serial connector and TableB-2 defines the pin assignments for the connector.
Figure B-2. Serial Connector Pin Numbers
Icon
Connector
Serial connector
Video connector
USB connector
NIC connector
NOTE: If two COM connectors share an IRQ setting, you may not be able to use them both at the same time. In addition, if you install one or more
expansion cards with serial connectors designated as COM1 and COM3, the integrated serial connector is disabled.
- Notes, Notices, and Cautions 1
- Abbreviations and Acronyms 1
- System Board Jumpers 2
- System Board Connectors 3
- SCSI Backplane Connectors 5
- I/O Connectors 7
- Video Connector 8
- USB Connectors 8
- Integrated NIC Connectors 9
- Network Cable Requirements 9
- Before You Begin 10
- Recommended Tools 10
- Control-Panel Assembly 10
- Fan Interposer Board 11
- SCSI Backplane 12
- System Board 14
- Installing the System Board 18
- Power Distribution Board 19
- Chassis Intrusion Switch 20
- Introduction 22
- System Status Indicators 23
- Power Indicator Codes 26
- NIC Indicator Codes 26
- LCD Status Messages 26
- System Messages 28
- System Beep Codes 31
- Warning Messages 32
- Diagnostic Messages 32
- Alert Messages 32
- From the Utility Partition 35
- Back to Contents Page 37
- Start-Up Routine 38
- Checking the Equipment 38
- Troubleshooting the Keyboard 39
- Troubleshooting the Mouse 39
- Problem 40
- Troubleshooting a NIC 41
- Inside the System 42
- Opening the System 42
- Closing the System 43
- System Battery 55
- Removing a System Fan 56
- Cooling Shroud 57
- Power Supplies 58
- Expansion Cards 59
- Hot-Plug Expansion Cards 60
- Removing an Expansion Card 62
- System Memory 65
- Spare Bank Support 66
- Memory RAID Support 66
- Memory Mirroring Support 66
- Installing Memory Modules 69
- Processor 70
- Installing a Processor 71
- Installing A Processor VRM 73
- Installing Drives 74
- Removing a SCSI Hard Drive 75
- Configuring the Boot Drive 78
- Non-RAID Configurations 82
- RAID Configurations 82
- Getting Help 83
- Problems With Your Order 84
- Product Information 84
- Before You Call 85
- Contacting Dell 85
- Abbreviations and Acronyms 94
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