HP EliteBook 840 G3 G4 Screen Cable

Description

If you’re looking for a screen cable (also known as a display or LVDS cable) for an HP EliteBook 840 G3 or G4, it’s important to make sure you get the correct part. These cables connect the laptop’s motherboard to the display, enabling the screen to function properly. The specific cable you need depends on your laptop’s exact model and screen configuration (e.g., 1366×768, 1920×1080, touch vs. non-touch display).

Here’s what you need to know:

How to Identify the Correct Screen Cable:

1. Model and Version: Make sure you know whether you’re working with an HP EliteBook 840 G3 or G4, as the cables may differ slightly between these models. The G4 is typically a newer revision.
2. Display Resolution and Type: Check whether your display is Full HD (1920×1080), HD (1366×768), or touchscreen, as the connector types might differ based on screen type.
3. OEM Part Number: The original equipment manufacturer (OEM) part number for the screen cable can be very helpful in finding a direct replacement. Some common part numbers for the HP EliteBook 840 series might include:
   • HP 840 G3 LVDS Cable Part Number: 826279-001
   • HP 840 G4 LVDS Cable Part Number: 826279-001 or similar variants for G4 models.
4. Check the Connector: Make sure the connector type (e.g., 30-pin, 40-pin) is the same as your original cable. This is crucial to ensure compatibility with the motherboard and display.

Where to Purchase the Screen Cable:

1. HP Official Parts Store: The most reliable source for an OEM replacement.
2. Third-party retailers: Websites like eBay, Amazon, or AliExpress offer compatible cables, but be sure to check reviews for quality and authenticity.
3. Laptop Repair Stores: Local computer repair shops or online stores specializing in laptop parts may carry the specific cable you need.

Replacing the Screen Cable:

1. Disassembly: You’ll need to carefully disassemble the laptop to access the cable, which usually involves removing the back panel and keyboard.
2. Replacement: Gently disconnect the old cable from both the motherboard and the screen, then replace it with the new cable. Be sure the connectors are firmly seated.
3. Testing: Before reassembling the laptop, power it on to test if the screen is working correctly.

Let me know if you need more detailed instructions on the replacement process or help with other parts!