Question about Graphics Cards

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I need some help with this one. My PC display is experiencing problems like corrupt images, faulty animations, sometimes I can see vertical lines on the screen. On the worst case, my PC stops responding from mouse movements or keyboard commands and more often the screen display starts blinking or blacking out. I tried reinstalling the driver a few times already. I put the display configuration & the hardware acceleration bar to the lowest setting & still the problems persists. Only on the windows safe mode and when I disabled the video card on the device manager properties the problems stop occuring. I think its the Nvidia GeForce2 MX400/400 graphics card that has problem but I still need some feedback from others to make sure. So any opinion will be helpful. THANKS!

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I owould say that most definitely your card is shot. Once you start to see Artifacts (corruptions as you call them) this is a near -definite sign that something is wrong with your card. I used to have an old computer with a Ge-force MX400. . .It was a pretty good card for a while. . .But just like everything else. . .I needed to upgrade. . .You should be able to get a good 6000 series Nvidia AGP card for under $70.00. . .I recommend the 6600. . .And if you can afford it . . .I would go up to the 7600 series (probably around 125.00 though). . .

There is really nothing you can do to fix this issue with your card. . .unless you have a warranty. . .If so, you will probably need to contact the MFG, and request an RMA. . .you will need to make sure you have your original sales receipt. . .RMA's are kind of a pin in the &@$. . .


Posted on Feb 02, 2008

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If it is a AGP card it is not possible that the graphics card can make the keyboard and mouse not respond.
If it is a PCI card there is a chance that it can do what you mentioned.
Also it could be the size of the graphics card, a 512 mg card can sometimes need a 500W power supply so you could get your power supply diagnosed as well.
Hope this helps

Posted on Nov 28, 2007

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SOURCE: Nvidia GeForce2 MX400/400

I have the same card....and my PC stops responding from mouse movements sometimes, but not anymore. I found that if I always use the HIBERNATE feature of Windows, that my video problems vanish, so I think the problem is related to video RAM, but not sure, because virtual memory caching plays a large role during wake from hibernate. Also ensure that BIOS video settings are not too extreme, go with the normal or default video settings.

Posted on Nov 27, 2007

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scan your PC for viruses and spyware in the safemode.
Use mcafee. If you don't want to pay, just use the trial.
If it does not help, format your computer.
Get your graphics card and your slot tested by a local hardware dealer.
In the worst cases, you will have to get your graphics card and/or motherboard replaced.

Posted on Jan 31, 2008

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You may have a faulty inverter or defective CCFL lamp. A faulty CCFL lamp may have the following symptom: Screen flashes on and off or displays reddish pink hue. Picture stays on in red and slowly be come normal. Picture flickering and/or with dim display or appear black. Picture flickers on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replace the CCFL lamp.
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Nvidia GeForce2 MX400/400

I have the same card....and my PC stops responding from mouse movements sometimes, but not anymore. I found that if I always use the HIBERNATE feature of Windows, that my video problems vanish, so I think the problem is related to video RAM, but not sure, because virtual memory caching plays a large role during wake from hibernate. Also ensure that BIOS video settings are not too extreme, go with the normal or default video settings.

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Its most likely the video cards fault,
however a bad PSU can cause these problems.

No Power To The Computer
Here you must first check the wall outlet for power by connecting another device such as a radio or lamp to be sure power is present. If the computer is connected through a surge protector, check it as well.
If the wall out has power, check the power cable going to the PC to see if AC voltage is making its way to the system unit. Do this with the use of a multimeter.
If there is power, you will have to open the PC and check for power from the power supply to the motherboard.
When using a multimeter to check voltage, be sure you have a good ground for the black lead of the multimeter.
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One main problem you may face with an ailing power supply is that it may reboot the computer without any warning. All information is lost and it seems as though this happens at the worst possible time.
Booting errors when the computer first starts up may be another indicator of this component going on the blink.
Power Distribution Problems
When the power supply begins to fail, you may receive power at one device and not another. For example, the hard drive may receive power, but the CD-ROM drive has nothing at all.
Another headache that would cause rebooting is the intermittent power going to the drives or the motherboard itself. Follow the steps below to check your power supply should you experience some of the above problems.

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