25. Lift the system board out of the base assembly.

1

smart card cable

2

system board

 

3

M2.5 x 5-mm system board screws (3)

4

DC cable

 

 

 

 

 

 

5

top-left corner of base assembly

6

I/O card

 

 

 

 

 

 

7

top-right corner of base assembly

8

1394 card cable

 

 

 

 

 

 

 

 

 

 

 

Replacing the System Board Assembly

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

NOTICE: Ensure that any loose cables do not get caught beneath the system board.

1.Place the front-edge of the system board into the base of the computer, ensuring the system board fits under the metal LCD latch mechanism in the front center of the base assembly.

2.Connect the DC power cable to the bottom of the system board.

3.Place the top-left corner of the system board in the base assembly.

4.Push down on the top-right corner of the system board to connect it to the I/O card.

5.Replace the three M2.5 x 5-mm screws on the system board in the holes labeled with white arrows.

6.Route and connect the 1394 card cable to the connector on the system board. Press down on the cable to adhere it to the system board.

7.Connect the smart card cable to the connector on the system board.

8.Replace the card cage (see Replacing the Card Cage).

9.Replace the palm rest assembly (see Replacing the Palm Rest Assembly).

10.Replace the right speaker grill (see Replacing the Right Speaker Grill/Fingerprint Reader Assembly).

11.Replace the keyboard (see Replacing the Keyboard).

12.Replace the LED cover (see Replacing the LED Cover).

13.Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400) or Replacing the Display Assembly (E6400 ATG)).

14.Replace the modular drive (see Replacing the Modular Drive).

15.Replace the hard drive (see Replacing the Hard Drive).

16.Connect the coin-cell battery cable to the system board.

17.Replace the processor (see Replacing the Processor Module).

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Dell E6400 ATG manual Replacing 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.