Question about Gateway 450SX4 Notebook

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Have you tried to replace the backlight lamp, itself? When you say you tried a different LCD, do you mean the barebones LCD panel? Yes, an external monitor should work fine.

Posted on Nov 11, 2007

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The 450sx4 screen is bright but no video

Many computer users spend long hours online every day and don\'t realize that looking at a bright laptop screen can be hard on the eyes. If you spend a lot of time in front of a laptop screen, consider reducing the brightness of the screen at the earliest opportunity. There\'s a quick and easy way to perform this task so you can save your eyes as well as your battery power.

Press and hold the "Fn" key on the laptop keyboard. This key is usually located at the top right or bottom left of the keyboard. Press the "Up Arrow" and "Down Arrow" keys, which are usually located in the lower right of the keyboard, to increase or reduce the brightness of your laptop screen. Adjust the level so that you can gaze comfortably at the screen without any glare. Disconnect the battery charger from your laptop and repeat the above procedure. On some laptops, the screen brightness varies considerably, depending on whether or not the device is charged. Hope this helps.

Jan 22, 2013 | Gateway 450SX4 Notebook

1 Answer

I need a wiring schematic for gateway model 450sx4 lcd screen

The manufacture will not release that information to the general population.

May 29, 2012 | Gateway 450SX4 P4-M Notebook

1 Answer

I have a gateway 450sx4 having a problem with my screen. When i turn it on, you can't see anything...i've even tried conneting a monitor and still don't see anything...what else could it be???...

You can try 2 things: 1. Start in safe mode ( start tapping f8 when you start) and see if that works. If it is ok try to update-or reinstall- drivers for your video card. 2. Reinstall OS-whatever you have.If that failed-your video card is probably out.

Nov 15, 2010 | Gateway 450SX4 Notebook

1 Answer

Yea i have a gateway 450sx4 laptop and when i turn it on it stays black for a while and when the screen finally turns on it blurry and its different colors and it just shows lines how can i fix this?

It's likely that your screen is "fried" (faulty) ... try to connect your laptop to an external VGA monitor, and see if the screen shows up (on the external monitor) properly. You may have to toggle the output display (device) from computer screen to external monitor ..using Fn+F3.
If it displays on your external monitor properly, it means your laptop screen is no good. You can replace the laptop screen, or just continue to use the external monitor.
If it does the same (blurry & different color, etc.) on your external monitor, then, your video card/module on your laptop is bad. This usually happens less often.

Aug 11, 2010 | Gateway 450SX4 Notebook

1 Answer

I am trying to restore my gateway 450sx4 to the way it was when it came out of the box? the recovery disks are not working.

Are you booting from the Disk. If not make sure the CMOS looks at the CD /DVD drive first so it can boot from it.

Nov 08, 2009 | Gateway 450SX4 Notebook

1 Answer

Gateway 450SX4 512MB max

Go to the gateway site, and select the option to allow gateway to tell you about your machine. It will tell you maximum ram capability

May 01, 2009 | Gateway 450SX4 Notebook

1 Answer

Gateway 450sx4

Yes you should try ito adjust the brightness.
Can you see a slight image on the LCD, screen this indicates a backlight problem?
You can connect an external monitor to the video connector on the laptop, then boot it up and see if the is a display on the external monitor. You may have to press the blue Fn + one of the Function key so you can switch the video output to the external monitor. If you get an image on the external monitor then the video card is OK and the fault is with the LCD backlight. This could be a faulty inverter that supplies high voltage to the CCFL lamp or the CCFL lamp is faulty, 80% of the time it is the CCFL lamp that is faulty.
The inverter is easy to replace, the CCFL lamp requires a lot more work and requires soldering skills.

Go to for parts and/or repair service and DIY info.

Mar 03, 2009 | Gateway 450SX4 Notebook

1 Answer

Laptop starts and after a few seconds shuts down

Could be overheating, or possibly a motherboard gone bad. Try taking the battery out, unplug from power cord, hold down the power button for 20 seconds, put battery back in and see what happens.

Jan 20, 2009 | Gateway 450SX4 Notebook

1 Answer

Question regaurding two different gateway laptops


I compared them, the on you have is a good laptop, the one you consider to by is not.
The one you have has on mobile prosessor 2,7ghz, the 450 has an pentium4, that will get that laptop warmer and it will consume mote electricity

The 7320 have 512mb ram and you can upgrade it to 1,5gb ram if you want. The 450 have 512mb ram and thats the maximum it can have.

The 7320 has an 15.4 in TFT active matrix 1280 x 800 ( WXGA ) screen. The 450 has 14.1 in TFT active matrix 1024 x 768 screen.

The 7320 has Intel Extreme Graphics 2 Shared video memory . The 450 has ATI Mobility Radeon M6-P 32.0 MB

In my opinion, the only thing thats better on the 450 is the videocard, and that just a little bit better.

So my advice is..DONT buy that 450, there are better laptops out there for a good price.

I hope the info i gave you helped
If you have further questions, just ask me and i will do my best to help you

Good luck
PLEASE rate me

Dec 30, 2008 | Gateway 450SX4 Notebook

1 Answer

I want to disassemble Gateway 450SX4

Nowhere: Only HP and IBM and DeLL offer parts schematics for their laptops. But if you take a look at some of those,you'll have a really good idea how to work on your Gateway,because they're all very similar.

Mar 07, 2008 | Gateway 450SX4 Notebook

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