Dell 7910 Front bezel (optional)

Item Indicator, Button, or

Connector Icon Description

17 Serial connector Allows you to connect a serial device to the

system.

18 Video connector Allows you to connect a VGA display to the

system.

19 USB connector (2) Allows you to connect USB devices to the system.

The ports are USB 2.0-compliant.

20 Full-height PCIe

expansion card slot (4)

Allows you to connect up to four single wall or

two double wide PCI Express expansion cards.

21 Ethernet connector (4) Four integrated 10/100/1000 Mbps NIC

connectors

Four integrated connectors that include:

• Two 10/100/1000 Mbps NIC connectors

• Two 100 Mbps/1 Gbps/10 Gbps NIC

connectors

22 Power supply unit AC 1100 W

Front bezel (optional)

Removing the front bezel

1. Unlock the bezel lock at the left end of the bezel.

2. Lift the release latch next to the bezel lock.

3. Pull the left end of the bezel, unhook the right end and remove the bezel.

Contents

Main Notes, Cautions, and Warnings Contents Page Page Page Page Working on Your Computer Turning Off Your Computer LCD panel features Home screen Setup menu View menu Documentation matrix Hard-drive indicator codes Page Installing and removing system components Safety instructions Before working inside your system After working inside your system Recommended tools Page Page Page Front bezel (optional) Removing the front bezel Installing the front bezel Removing the system cover Installing the system cover Inside the system Cooling shroud Removing the cooling shroud Installing the cooling shroud System memory Page General memory module installation guidelines Sample memory configurations Page Page Removing memory modules Page Installing memory modules Page Hard drives Removing a 2.5 inch hard-drive blank Installing a 2.5 inch hard-drive blank Removing Hard Drive Installing Hard Drive Removing a hard drive from a hard-drive carrier Installing a hard drive into a hard-drive carrier Optical drive (optional) Removing the optical drive Installing the optical drive Cooling fans Removing a cooling fan Installing a cooling fan Removing the cooling-fan assembly Page Installing the cooling-fan assembly Internal USB memory key (optional) Replacing the internal USB key PCIe card holder Removing the PCIe card holder Page Installing the PCIe card holder Opening and closing the PCIe card holder latch Cable retention bracket Removing the cable retention bracket Installing the cable retention bracket Expansion cards and expansion-card risers Expansion card installation guidelines Removing an expansion card from expansion-card riser 2 or 3 Page Installing an expansion card into the expansion-card riser 2 or 3 Removing an expansion card from the expansion-card riser 1 Installing an expansion card into the expansion-card riser 1 Removing the riser 1 blank Installing the riser 1 blank Removing expansion-card risers Page Page Page Page Page Installing expansion-card risers GPU card installation guidelines Installing a GPU card Removing a GPU card SD vFlash media card Replacing an SD vFlash media card Internal dual SD module Removing an internal SD card Installing an internal SD card Removing the internal dual SD module Page Installing the internal dual SD module Integrated storage controller card Removing the integrated storage controller card Installing the integrated storage controller card Network daughter card Removing the network daughter card Page Installing the network daughter card Processors Removing a processor Page Page Page Installing a processor Page Power supply units Hot Spare feature Removing the power supply unit blank Installing the power supply unit blank Removing an AC power supply unit Page Installing an AC power supply unit System battery Replacing the system battery Hard-drive backplane Removing the hard-drive backplane Installing the hard-drive backplane Control panel assembly Removing the control panel Page Installing the control panel System board Removing the system board Page Page Installing the system board Entering the system Service Tag using System Setup Restoring the Service Tag using the Easy Restore feature Updating the BIOS version Re-enabling the TPM for TXT users Troubleshooting your system Safety firstfor you and your system Troubleshooting system startup failure Troubleshooting external connections Troubleshooting the video subsystem Troubleshooting iDRAC Direct (USB XML configuration) Troubleshooting iDRAC Direct (laptop connection) Troubleshooting a serial I/O device Troubleshooting a NIC Troubleshooting a wet system Troubleshooting a damaged system Troubleshooting the system battery Troubleshooting power supply units Power source problems Power supply unit problems Troubleshooting cooling problems Troubleshooting cooling fans Troubleshooting system memory Troubleshooting an internal USB key Troubleshooting an SD card Troubleshooting an optical drive Troubleshooting a hard drive Troubleshooting a storage controller Troubleshooting expansion cards Troubleshooting processors Error Messages Errors That Halt the System Completely Errors That Soft Halts the System Error That do not Halt the system System messages Warning messages Diagnostic messages Alert messages Page Using system diagnostics Dell Embedded System Diagnostics When to use the Embedded System Diagnostics Running the Embedded System Diagnostics from Boot Manager Running the Embedded System Diagnostics from the Dell Lifecycle Controller System diagnostic controls Jumpers and connectors System board jumper settings System board connectors Page Disabling a forgotten password Specifications Page Page Page Page Page System Setup Boot Menu Timing Key Sequences Dell Diagnostics About System Setup Entering System Setup System Setup Main Menu System BIOS screen System Information screen details Memory Settings screen details Processor Settings screen details Page SATA Settings screen details Page Boot Settings screen details Integrated Devices screen details Page Serial Communication screen details System Profile Settings screen details Page System Security settings screen details Secure Boot Custom Policy Settings Miscellaneous Settings screen details Page Page NIC indicator codes Power indicator codes Page Contacting Dell Contacting Dell Quick Resource Locator (QRL)