Question about Gateway 400SD4 Notebook

1 Answer

Need help installing antenna for Gateway 400SD4 PC Notebook

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 3 Answers

Am presuming you're referring to antennas for use with a WiFi card that fits into the mini-PCI slot under one of the covers on the underside of the laptop. I've done this on the same model, but have not been entirely pleased with the performance -- mostly due to weak reception. I'm not sure of the reason, which may be because the antennas used weren't up to the job, or if there are inherent reception limitations even when the antennas are properly installed. It's certainly better than no antenna at all, but nowhere near as good as a USB 2.0 dual-band Wireless-N WiFi adaptor. I may try a different internal antenna to see if that improves reception.
All that being said, this is not a job for an amateur, and should only be attempted by someone with good technical skills and some experience in computer/laptop repairs. These antennas are flat, either square or rectangular, and are intended to be placed inside the top cover, behind the LCD display, between the foil backing and the top of the lid. The cables are routed through the right side of the left hinge, then under the cooling fans and motherboard. Of course all disassembly & reassembly should be done with power disconnected and battery removed. To do all this, you'll need to:
-- first remove the panel with the power on/off button and status LEDs (Gateway calls it a "keyboard cover;" use a thin, flathead screwdriver to pry up the right side, just above the Insert & Delete keys, then lift up so that the snaps release), then
-- remove the keyboard (remove 4 tiny phillips-head screws just above the keyboard, lift the rear of the keyboard and lift the tabs to the ribbon-cable connector on the motherboard),
-- remove the 3 screws holding the keyboard retaining panel (above the two cooling fans), and slide it toward the front to remove it, then
-- remove the 4 screws to the left fan assembly (NOT the fan itself), unplug the cable, and lift the front side first to remove it, then
-- unplug the power cable ane remove the 4-5 screws holding the right fan and heatsink assembly, and remove it, then
-- remove the 2 plastic hinge covers, and the 4 screws to the hinges, and disconnect all the cables connecting the LCD to the motherboard, then
-- remove all the rubber/plastic "bumpers" on the LCD bezel, and the screws beneath, and use your fingers to gently pry the bottom of the bezel from the screen, and progressively pry the remaining snaps loose to remove the bezel, then
-- remove the screws holding the LCD panel in the top cover.
Once all this is done, you can install the new antennas under the foil (i.e. between the foil and the top cover) so that they will be at the top when the computer is open and operating, run the cables through the right side of the left hinge, replace the LCD screen with all the screws, and the bezel. When you put the top cover back onto the base, route the antenna cables around the right side of the left fan, and through the hole in the motherboard, so that the cables appear in the mini-PCI card slot area. Reassemble everything else in reverse order from disassembly, connect the cables to your mini-PCI WiFi card, replace the cover, and test it out.

Posted on Jun 16, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I need a hdo password for my gateway #400SD4 laptoplaptop please help

Replace the hdd as unless you can prove ownership of the media, Gateway will not release the code.

Nov 22, 2014 | Gateway 400SD4 Notebook

1 Answer

Need to install wifi driver on gateway 400sd4, win vista,

Go to Gateways web site and download all of the drivers for your Gateway machine and install them.

Mar 22, 2014 | Gateway 400SD4 Notebook

1 Answer

Where is the battery button to reset the bios on a Gateway laptop model #400SD4 located?

just pull that battery off the board for a couple minutes, the also may be a little button you will be able to push on the board

Jan 25, 2013 | Gateway 400SD4 Notebook

1 Answer

Where can i find a recovery disc for this computer


According to Gateway, you can request a Recovery CD here, but if you are out of warranty it will cost you.

But the Gateway website has all the drivers available for the SD4 here, so if you can get windows installed onto it, you can install the drivers one by one..

Also, here is the main SD4 webpage if you need any more documentation, etc.

May 07, 2011 | Gateway 400SD4 Notebook

1 Answer

How to change hdo password on gateway 400sd4

To change the password:
Enter password and then go into security settings. Enter your password again and then you can change it to anything you like. Password settings can be found in Control Panel.
Hope that helps.

Nov 22, 2010 | Gateway 400SD4 Notebook

2 Answers

How to reformat my gateway 400sd4 laptop?

If you are planning to install windows after format, then u can do the formatting during the windows installation procedure. Insert the CD, boot from it. Otherwise you would need a Linux live CD

Sep 24, 2009 | Gateway 400SD4 Notebook

1 Answer

Gateway 400SD4 Poweron password

Here's a link to show you how to get around the password. It gives you an idea of why it costs $175.

Jun 13, 2008 | Gateway 400SD4 Notebook

1 Answer

Sound problem

try disabling the sound and rebooting, so that vista thinks its a new device and reinstalls

May 26, 2008 | Gateway 400SD4 Notebook

1 Answer

Gateway 400SD4 LCD Cable #DD00A6LC609

Remove the screen by taking the plastic cover around the screen off, the screws are hidden behind the small rubber bumpers. Once the plastic is off, there will be four screws holding the screen in place, remove those and the screen will pull forward, then you will see where the lcd ribbon connects to the screen. Disconnect it and set it to the side. Now you will need to remove the plastic piece at the top of the keyboard in order to get to where the ribbon connects to the board. You may need to remove the keyboard in order to remove this piece, and there may or may not be screws holding this piece in place. Pay close attention and go slowly, these should come apart rather easily unless there is a screw holding them.

May 14, 2008 | Gateway 400SD4 Notebook

1 Answer


Lets give this a try. First update your version of windows.
Than download and install the latest drivers for your system.
This web site below will explaind how to download & how to install.,%20600YGR,%20450ROG,%20450SX4,%20400SD4%20Video%20driver,%20version%

Dec 19, 2007 | Gateway 400SD4 Notebook

Not finding what you are looking for?
Gateway 400SD4 Notebook Logo

152 people viewed this question

Ask a Question

Usually answered in minutes!

Top Gateway Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Prashant M
Prashant M

Level 3 Expert

2263 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you a Gateway Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides