Service Manual
Page 4
...174; Turn Off Computer® Turn Off. Replace the cover. Connect your computer. 1. Ensure that the computer works correctly by running the Dell Diagnostics. The computer turns off your computer and all attached devices are turned off . Turn on your operating system, press and hold the ... in this document may require the following tools: Small flat-blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update program CD (see the Dell Support website at support.dell.com) Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and ...
...174; Turn Off Computer® Turn Off. Replace the cover. Connect your computer. 1. Ensure that the computer works correctly by running the Dell Diagnostics. The computer turns off your computer and all attached devices are turned off . Turn on your operating system, press and hold the ... in this document may require the following tools: Small flat-blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update program CD (see the Dell Support website at support.dell.com) Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and ...
Service Manual
Page 7
one low profile card with riser card - one full height card Network Integrated System Information Chipset DMA channels Interrupt levels BIOS chip (NVRAM) Expansion Bus Bus type Bus speed Cards PCI Mini-tower Desktop Small form factor PCI Express x1 Mini-tower Desktop Small form factor ...
one low profile card with riser card - one full height card Network Integrated System Information Chipset DMA channels Interrupt levels BIOS chip (NVRAM) Expansion Bus Bus type Bus speed Cards PCI Mini-tower Desktop Small form factor PCI Express x1 Mini-tower Desktop Small form factor ...
Service Manual
Page 14
...Beep Codes If the monitor cannot display error messages during the POST. Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM read/write failure 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer failure 1-2-2 DMA initialization failure 1-2-3 DMA page register read/write failure 1-3 Video Memory Test failure 1-3-1 through... is off , light is in. Look at the diagnostic lights to determine which state the system is blank. The BIOS will turn the light to this state to be generated during the POST, the computer may be replaced. The following table...
...Beep Codes If the monitor cannot display error messages during the POST. Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM read/write failure 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer failure 1-2-2 DMA initialization failure 1-2-3 DMA page register read/write failure 1-3 Video Memory Test failure 1-3-1 through... is off , light is in. Look at the diagnostic lights to determine which state the system is blank. The BIOS will turn the light to this state to be generated during the POST, the computer may be replaced. The following table...
Service Manual
Page 15
... Cache test failure Diagnostic Lights To help to identify the problem. If the problem persists, contact Dell. A possible USB failure has occurred. Reseat all four lights turn off before turning off condition or a possible pre-BIOS failure has occurred. Reinstall all USB devices and check all modules without error. 3-4-3 4-2-1 4-2-2 4-2-3 4-2-4 4-3-1 4-3-3 4-3-4 4-4-1 4-4-2 4-4-3 4-4-4 Search for your...
... Cache test failure Diagnostic Lights To help to identify the problem. If the problem persists, contact Dell. A possible USB failure has occurred. Reseat all four lights turn off before turning off condition or a possible pre-BIOS failure has occurred. Reinstall all USB devices and check all modules without error. 3-4-3 4-2-1 4-2-2 4-2-3 4-2-4 4-3-1 4-3-3 4-3-4 4-4-1 4-4-2 4-4-3 4-4-4 Search for your...
Service Manual
Page 17
... modification Reset defaults Navigation Keystrokes Keystroke , left- or right-arrow key, or +/- < > -Remain in the BIOS. Press to enter System Setup and make changes to user-definable settings. Back to Contents Page System Setup Dell™ OptiPlex™ 780 Service Manual-Mini-Tower, Desktop, and Small Form Factor Boot Menu Navigation Keystrokes Entering System...
... modification Reset defaults Navigation Keystrokes Keystroke , left- or right-arrow key, or +/- < > -Remain in the BIOS. Press to enter System Setup and make changes to user-definable settings. Back to Contents Page System Setup Dell™ OptiPlex™ 780 Service Manual-Mini-Tower, Desktop, and Small Form Factor Boot Menu Navigation Keystrokes Entering System...
Service Manual
Page 18
... an operating system located on a hard drive in system) Onboard or USB CD-Rom Drive USB Device Drives Diskette drive This field determines how the BIOS configures floppy drives, Operating Systems with RAID mode. All Floppy drive are enable. Reporting RAID Mode is disable Enable - Internal USB for Flex Bay is...
... an operating system located on a hard drive in system) Onboard or USB CD-Rom Drive USB Device Drives Diskette drive This field determines how the BIOS configures floppy drives, Operating Systems with RAID mode. All Floppy drive are enable. Reporting RAID Mode is disable Enable - Internal USB for Flex Bay is...
Service Manual
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... disables keyboard error reporting when the computer starts. Specifies how the client obtains the IP address. OS Install This option is 256MB RAM. System Logs BIOS Events Displays the system event log and allows you to specify the function keys to display on displays a message stating the keystroke sequence required to...: To set Client Subnet Mask you must set Client DHCP to Static IP Specifies the gateway IP address for OS to enter the Manageability Engine BIOS Extensions(MEBx) Setup program. Specifies the primary IP port of the client.
... disables keyboard error reporting when the computer starts. Specifies how the client obtains the IP address. OS Install This option is 256MB RAM. System Logs BIOS Events Displays the system event log and allows you to specify the function keys to display on displays a message stating the keystroke sequence required to...: To set Client Subnet Mask you must set Client DHCP to Static IP Specifies the gateway IP address for OS to enter the Manageability Engine BIOS Extensions(MEBx) Setup program. Specifies the primary IP port of the client.
Technical Guide
Page 2
... System Dimensions (Physical) System Board Connector Maximum Allowable Dimensions System Level Environmental and Operating Conditions Power Audio Communications Graphics/Video Controller Hard Drives Optical Drive BIOS Defaults Chassis Enclosure and Ventilation Requirements Acoustic Noise Emission Information 3 4 5 6 7 8 9 10-11 12 12 13 13 14 15 15 16 17 18 18-22 23...
... System Dimensions (Physical) System Board Connector Maximum Allowable Dimensions System Level Environmental and Operating Conditions Power Audio Communications Graphics/Video Controller Hard Drives Optical Drive BIOS Defaults Chassis Enclosure and Ventilation Requirements Acoustic Noise Emission Information 3 4 5 6 7 8 9 10-11 12 12 13 13 14 15 15 16 17 18 18-22 23...
Technical Guide
Page 7
... Ulti- mate Downgrade Rights (32 bit) FreeDOS for (N-series), Ubuntu® Linux (China only) X X X X CHIPSET Chipset Non-volatile memory on chipset BIOS Configuration SPI (Serial Peripheral Interface) TPM 1.2 Security Device (Trusted Platform Module)1 TCM (Trusted Computing Module) Non-TPM NIC EEPROM MT DT SFF USFF Intel Q45...; operating system Windows XP® operating system Other OS Media Support MT DT SFF USFF Microsoft® Windows 7® Basic; DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 MARKETING SYSTEM CONFIGURATIONS NOTE: Offerings may vary by region.
... Ulti- mate Downgrade Rights (32 bit) FreeDOS for (N-series), Ubuntu® Linux (China only) X X X X CHIPSET Chipset Non-volatile memory on chipset BIOS Configuration SPI (Serial Peripheral Interface) TPM 1.2 Security Device (Trusted Platform Module)1 TCM (Trusted Computing Module) Non-TPM NIC EEPROM MT DT SFF USFF Intel Q45...; operating system Windows XP® operating system Other OS Media Support MT DT SFF USFF Microsoft® Windows 7® Basic; DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 MARKETING SYSTEM CONFIGURATIONS NOTE: Offerings may vary by region.
Technical Guide
Page 43
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS Drives System Configuration Video Performance Virtualization Support Security Diskette drive: SATA Operation; SMART Reporting: SATA-0: SATA-1: External SATA: Integrated NIC: USB Controller: Parallel Port: ...
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS Drives System Configuration Video Performance Virtualization Support Security Diskette drive: SATA Operation; SMART Reporting: SATA-0: SATA-1: External SATA: Integrated NIC: USB Controller: Parallel Port: ...
Technical Guide
Page 44
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS (CONT.) Power Management Maintenance Post Behavior AC Recovery: Auto On Time: Low Power Mode: Remote Wake Up: Suspend Mode: Fan Control Override: Service Tag: Asset Tag: SERR Message: Fast Boot: Numlock LED: POST HotKeys: Keyboard Errors: MEBx HotKey Power Off Disable Disable Disable S3 Disable Set by the factory Optional User Entry Enable Enable Enable Enable Enable Enable 44
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS (CONT.) Power Management Maintenance Post Behavior AC Recovery: Auto On Time: Low Power Mode: Remote Wake Up: Suspend Mode: Fan Control Override: Service Tag: Asset Tag: SERR Message: Fast Boot: Numlock LED: POST HotKeys: Keyboard Errors: MEBx HotKey Power Off Disable Disable Disable S3 Disable Set by the factory Optional User Entry Enable Enable Enable Enable Enable Enable 44