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Nvidia 6600 card removal from gateway 838GM

I suspect that my video card is bad. I have had problems with the monitor going black. I tried a lot of things so far but not change. updated drivers, turing off hibernate, screen saver, lower refresh rate, turn off acceleration, carefully dusted out the computer, etc. Problem still there.

I want to test if the card is the problem by removing it. My monitor is connected to the nvida port. Can I just turn off the card in preferences, remove the card, plug the monitor back into the original monitor port and restart the computer?

Or, is there more to it than thant?

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You can do that but you may need to reset bios to recognize onboard video give it a try B4 you change bios

Posted on Aug 03, 2008


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Gateway GT5040 Graphics Card

This model Gateway desktop computer has a built-in video card.
Connect the monitor to the Gateway motherboard video port and the boot up and go into the BIOS and select disable the built-in video.
Shut down then connect the monitor to the 8800GTX video card and boot up the Gateway computer. The video should then appear in the monitor.

Feb 14, 2013 | Gateway GT5040 PC Desktop

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I have a gateway dx4200-09 and when I boot up the screen goes black a few seconds after we turn it on and can't do much without visual have to constantly turn on and off monitor for brief glimpses

Either the Monitor or Video Card is going bad. Since it comes back on by turning the monitor off and on, I suspect it's the monitor.

If you have another monitor, plug it in and see if it works. If so, the problem was the monitor.

If you have another computer, plug the monitor into it and see if it works, if so, the problem was the video card.

Mar 26, 2012 | Gateway Computers & Internet

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When I turn on my gateway computer my monitor will turn on but will says "no signal RGB". is it my motherboard thats going bad?

If the monitor comes on with the Gateway logo and follows with no signal, the monitor is probably okay. If the computer seems to run with no display then I would suspect the video graphics card, but there are a lot of variables that I do not know. I suggest a computer repair store to check your system with an estimate.

Dec 31, 2010 | Gateway FPD1976W LCD Monitor

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My nvidia geforce 6600 256mb video card not being detected...

I feel you got a failing video card my friend as if the slot failed you would not have got that far!.

Try another video card, you can get them cheap from Fry' hold on to your receipt just in case you have a failed motherboard (witch i can doubt that)

May 07, 2010 | Nvidia GeForce 6600 Graphic Card

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Gateway 838GM Video Card?

Hi i'm Rain.
Ok lets put it this way. You get what you pay for. If you want quality video you have to be willing to pay the asking price. Yes you can find it cheaper ,..But look at the word cheaper.
Yes the Express x16 HDCP will work with your system .
If i had to solve the issue i would have said get the PCIE.
All you are looking for is a video card with high speed .
I hope i have been helpful in this problem.

Jan 28, 2010 | Gateway 838GM (RB838GM) PC Desktop

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Video card nvidia geforce 6600

make sure you have REMOVED ANY OLD drivers first , ati or nvidia....

else use an older driver for this card...ok

Sep 15, 2009 | XFX GeForce 6600 GT, (128 MB) Graphic Card

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Signal to monitor goes in and out, mostly out

Hopefully, it is just the on board video that has gone bad, and not the motherboard. When you install a video card on a PC, that has on board or integrated video, you will need to access the BIOS screen on start up and disable the on board video. That way the video signal will come from the new video card and not the on board video.

I hope this helps,


Jan 18, 2009 | Gateway GT5220 PC Desktop

1 Answer

Monitor goes black suddenly

nvdia 6600 requires a minimum of 450 Watts of power to ensure that everything works properly. So if you want to continue using your nvdia card, an upgrade will be necessary.

If you want to test to see if it is the nvidia card, you need to remove the card physically from the system, then boot with the onboard video. This action will eliminate any conflicts between the two video cards. Before doing this you may need to go into device manager and make sure the onboard video card is not disabled.

Jul 26, 2008 | Gateway 838GM (RB838GM) PC Desktop

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Monitor goes into power saver mode

Hi justmee

This actually sounds like a monitor that is going south. However, it could also be the video adapter.

The quickest way to determine which is the culprit is to connect a different monitor to the computer - preferably one using the same video adapter (if you have more than one on the computer.)

If the issues w/ the lines persist w/ a **known good** monitor on the same video connection, then we're not looking at a monitor problem, rather (likely) a video adapter issue.

In that even, the 1st thing to do is to "reseat" the video adapter card. By "reseat" I mean unplug and plug back in. Sometimes the contacts can become corroded or the card wiggled out of place a bit.

(A) Make sure that BEFORE you do this, you remove power from the computer.

(B) BEFORE touching the video adapter, touch the flat of you palm against the back of the computer (an all metal surface area that is an integral part of the case). Do this for a few seconds. This will bring your body's electrical "potential" to the same level as the case. (This is to protect the computer from ESD (electro static discharge) from your body to its sensitive electronic components)

(C) Now, remove the video adapter by touching only the outer edges of the board and NONE of the electronic components or circuitry.

(D) Now, plug the board back in using the same precautions.

(E) Re-connect the video cable from the monitor.

(F) Restore power to the computer and fire it up. See if you still have a problem. (I suspect you will - still it doesn't hurt to try.)

(G) If the problem is still there, replace the video adapter.

When you see anomalies on the screen like you're describing, we're usually looking at a hardware issue rather than a software (drivers) or firmware (BIOS) issue.

In any event, the hardware is where to begin. In this case, we need to know if the problem stops at the monitor or if we need to look in the video adapter direction.

Please, post back here w/ the results of your tests and your observations and questions, etc. We'll work on this w/ you until the issue is resolved or diagnosed.

Thank you
BJ @:)

Apr 17, 2008 | Gateway 500 X PC Desktop

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