Service Manual
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Dell Latitude C840 Service Manual Dell™ Latitude™ C840 Service Manual Before You Begin Preparing to Work Inside the Computer Recommended Tools Computer Orientation Screw Identification System Components Hard Drive and Fixed Optical Drive Hard Drive Fixed Optical Drive System Upgrades Memory Modules Modem Daughter Card Mini PCI Card Keyboard Display Display Overview Hinge Cover ... and Module Bay Latches Battery Charger Board LED Board Fan RJ-11/RJ-45 Module Pin Assignments for I/O Connectors file:///F|/Service%20Manuals/Dell/Latitude/c840/index.htm (1 of 2) [2/28/2004 8:03:26 AM]
Dell Latitude C840 Service Manual Dell™ Latitude™ C840 Service Manual Before You Begin Preparing to Work Inside the Computer Recommended Tools Computer Orientation Screw Identification System Components Hard Drive and Fixed Optical Drive Hard Drive Fixed Optical Drive System Upgrades Memory Modules Modem Daughter Card Mini PCI Card Keyboard Display Display Overview Hinge Cover ... and Module Bay Latches Battery Charger Board LED Board Fan RJ-11/RJ-45 Module Pin Assignments for I/O Connectors file:///F|/Service%20Manuals/Dell/Latitude/c840/index.htm (1 of 2) [2/28/2004 8:03:26 AM]
Service Manual
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Removing the Memory Module/Modem Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (1 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual Back to Contents Page System Upgrades Dell™ Latitude™ C840 Service Manual Memory Modules Modem Daughter Card Mini PCI Card Memory Modules NOTICE: Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries. NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer.
Removing the Memory Module/Modem Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (1 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual Back to Contents Page System Upgrades Dell™ Latitude™ C840 Service Manual Memory Modules Modem Daughter Card Mini PCI Card Memory Modules NOTICE: Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries. NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer.
Service Manual
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file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (2 of the cover. Follow the instructions in "Preparing to Work Inside the Computer." 2. System Upgrades: Dell Latitude C840 Service Manual 1 M2.5 x 20-mm screw 1. Disengage the metal tabs at the opposite end of 9) [2/28/2004 8:03:38 AM] Remove the M2.5 x 20-mm screw from the memory module/modem cover. 3.
file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (2 of the cover. Follow the instructions in "Preparing to Work Inside the Computer." 2. System Upgrades: Dell Latitude C840 Service Manual 1 M2.5 x 20-mm screw 1. Disengage the metal tabs at the opposite end of 9) [2/28/2004 8:03:38 AM] Remove the M2.5 x 20-mm screw from the memory module/modem cover. 3.
Service Manual
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file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (3 of the module until the module pops up slightly. 3. System Upgrades: Dell Latitude C840 Service Manual 1 DIMM B 2 memory module sockets (2) 3 DIMM A socket 4 modem daughter card 5 metal tabs (2 per socket) Removing the Memory Modules 1. To release a memory module from its socket. Lift the memory module out of its socket, spread apart the tabs at each side of 9) [2/28/2004 8:03:38 AM] Remove the memory module/modem cover. 2.
file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (3 of the module until the module pops up slightly. 3. System Upgrades: Dell Latitude C840 Service Manual 1 DIMM B 2 memory module sockets (2) 3 DIMM A socket 4 modem daughter card 5 metal tabs (2 per socket) Removing the Memory Modules 1. To release a memory module from its socket. Lift the memory module out of its socket, spread apart the tabs at each side of 9) [2/28/2004 8:03:38 AM] Remove the memory module/modem cover. 2.
Service Manual
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... cover down until it . 4. If you only have one direction. 2. System Upgrades: Dell Latitude C840 Service Manual Replacing the Memory Modules 1. Insert the memory-module edge connector into the socket slot at a 45-degree angle and press the module firmly into place. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (4 of 9) [2/28/2004 8:03:38 AM] If you do not...
... cover down until it . 4. If you only have one direction. 2. System Upgrades: Dell Latitude C840 Service Manual Replacing the Memory Modules 1. Insert the memory-module edge connector into the socket slot at a 45-degree angle and press the module firmly into place. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (4 of 9) [2/28/2004 8:03:38 AM] If you do not...
Service Manual
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System Upgrades: Dell Latitude C840 Service Manual 2. Mini PCI Card Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (6 of the modem daughter card to align the card, and press the card into its connector on the computer. NOTICE: Disconnect the computer and ... touching unpainted metal on the system board. 3. Install the M2 x 3-mm screw that secures the card to the internal antenna of the computer. Replace the memory module/modem cover.
System Upgrades: Dell Latitude C840 Service Manual 2. Mini PCI Card Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (6 of the modem daughter card to align the card, and press the card into its connector on the computer. NOTICE: Disconnect the computer and ... touching unpainted metal on the system board. 3. Install the M2 x 3-mm screw that secures the card to the internal antenna of the computer. Replace the memory module/modem cover.
User Guide
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... connection. Bad command or file name - Ensure that plugs into low-performance mode and displays an appropriate WARNING message. Contact Dell. See "Adding Memory." The hard drive failed initialization. You can use the 90-W AC adapter (with the computer running in normal (non-power...See "Drive Problems." Decreasing available memory - or 3800-mAh battery) must be installed in "Dell Diagnostics." The CD drive does not respond to commands from older Dell™ computers, but they will cause a SYSTEM CONFIGURATION ERROR message to upgrade the AC adapter for the ...
... connection. Bad command or file name - Ensure that plugs into low-performance mode and displays an appropriate WARNING message. Contact Dell. See "Adding Memory." The hard drive failed initialization. You can use the 90-W AC adapter (with the computer running in normal (non-power...See "Drive Problems." Decreasing available memory - or 3800-mAh battery) must be installed in "Dell Diagnostics." The CD drive does not respond to commands from older Dell™ computers, but they will cause a SYSTEM CONFIGURATION ERROR message to upgrade the AC adapter for the ...
User Guide
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...several hours. If a CD drive is a member of data collected. If you encounter problems running a program designed for instance, when upgrading to another user session. User Accounts and Fast User Switching NOTE: Fast User Switching is disabled in the background while a second user is... see Windows Help and Support Center. For more information, see Windows Help and Support Center. l Computers with low memory configurations can experience problems. The computer uses memory to keep your session to Windows 95, Windows 98/Me, Windows NT® 4.0 with your operating system or other...
...several hours. If a CD drive is a member of data collected. If you encounter problems running a program designed for instance, when upgrading to another user session. User Accounts and Fast User Switching NOTE: Fast User Switching is disabled in the background while a second user is... see Windows Help and Support Center. For more information, see Windows Help and Support Center. l Computers with low memory configurations can experience problems. The computer uses memory to keep your session to Windows 95, Windows 98/Me, Windows NT® 4.0 with your operating system or other...