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System Board Assembly

Dell™ Latitude™ E6400 and E6400 ATG and

Mobile Workstation Precision™ M2400 Service Manual

Removing the System Board Assembly

Replacing the System Board Assembly

The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes media that provides a utility for transferring the Service Tag to the replacement system board.

Removing the System Board Assembly

CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.

1.Follow the instructions in Before Working on Your Computer.

2.Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).

3.Remove the card in the WWAN/FCM card slot, if present (see Removing a WWAN Card or Removing an FCM from the WWAN/FCM Slot).

4.Remove the card from the WLAN/WiMax card slot, if present (see Removing the WLAN/WiMax Card).

5.Remove the hinge covers (see Removing the Hinge Covers).

6.Remove the card from the WPAN/UWB/FCM card slot, if present (see Removing a WPAN (UWB/BT) Card or Removing an FCM from the WPAN/UWB/FCM Slot).

7.Remove the memory modules (see Removing a Memory Module).

8.Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).

9.Remove the processor (see Removing the Processor Module).

10.Disconnect the coin-cell battery cable from the system board.

11.Remove the hard drive (see Removing the Hard Drive).

12.Remove the modular drive (see Removing the Modular Drive).

13.Remove the display assembly (see Removing the Display Assembly (E6400 and M2400) or Removing the Display Assembly (E6400 ATG)).

14.Remove the LED cover (see Removing the LED Cover).

15.Remove the keyboard (see Removing the Keyboard).

16.Remove the right speaker grill (see Removing the Right Speaker Grill/Fingerprint Reader Assembly).

17.Remove the palm rest assembly (see Removing the Palm Rest Assembly).

18.Remove the card cage (see Removing the Card Cage).

19.Disconnect the smart card cable from the system board.

20.Disconnect the 1394 daughtercard cable from the system board, and unroute the cable from the system board.

21.Remove three M2.5 x 5-mm screws labeled with white arrows from the system board.

22.Pull out on the top-left corner of the base assembly to release the connectors, while lifting the top-left corner of the system board.

23.Lift the top-right corner of the system board to disconnect the system board from the I/O card.

24.Disconnect the DC cable, which is connected to the bottom of the system board.

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Dell E6400 ATG manual Removing the System Board Assembly

E6400 ATG, E6400 specifications

The Dell Latitude E6400 and E6400 ATG are part of the renowned Latitude series from Dell, designed specifically for business professionals who require durability, portability, and performance. Launched in the late 2000s, these laptops have been popular choices among users seeking reliable devices that can withstand everyday rigors.

The Dell E6400 stands out for its robust design and is built to last, featuring a magnesium alloy chassis and a reinforced palm rest. This model is equipped with a 14.1-inch display that offers resolution options including HD and WXGA, making it suitable for various tasks, from spreadsheets to presentations. The screen's anti-glare coating ensures visibility in different lighting conditions, enhancing user experience during prolonged usage.

Powering the E6400 is Intel’s Core 2 Duo processor, providing substantial performance for multitasking and business applications. It supports up to 8GB of RAM, allowing users to run multiple applications seamlessly. The laptop also incorporates a range of storage options, accommodating HDDs or SSDs, which contributes to faster boot times and application launch speeds.

On the connectivity front, the E6400 offers several ports including USB 2.0, an HDMI port, and an Ethernet port, making it versatile for both local and remote work. An optional docking station enhances expansion possibilities, turning it into a powerful workstation.

The E6400 ATG, or All-Terrain Grade, is designed for more demanding environments. It features a rugged exterior, meeting military specifications (MIL-STD-810F) for durability against shocks, drops, and extreme temperatures. The laptop is sealed to protect from dust and moisture, making it an excellent choice for workers in construction, field services, or any outdoor profession.

In terms of power efficiency, both models boast outstanding battery life, often lasting up to 8 hours on a single charge, depending on usage and configuration. The inclusion of Trusted Platform Module (TPM) and optional biometric fingerprint readers enhances security, ensuring sensitive business data remains protected.

Overall, the Dell Latitude E6400 and E6400 ATG balance performance and robustness, making them ideal for professionals on the go and those who require a rigorous workhorse in challenging environments. These models reflect Dell's commitment to quality and innovation in the business laptop segment, catering to a wide array of user needs.