Clean the contact pins of video card by rubbing w/ the eraser tip of a pencil. Reseat your video card twice. Reseat other connectors (power connector, cpu cooler fan, etc). If motherboard has 4pin 12V ATX socket, power supply should connect to it. Reset CMOS through the jumper or by removing CMOS battery for at least 30 seconds.
Try a bare minimum set up first. NO FDD, HDD, or CD drive. This set up should be able to display POST and you should be able to open BIOS menu. Otherwise, if there is not even the single beep, something could be wrong w/ motherboard or power supply. If you get the beep but still no display, graphics card could be defective.
2007-09-06 11:51:46
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answer #1
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answered by Karz 7
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When you swapped cases I'll bet you swapped power supplies and connectors to fans, reset, power button, etc. You did not mention if the computer is even booting or not, This is usually some white text on a black background to start off with. If you don't see that then likely you have a major compatibility issue with the power supply and the motherboard. If you get only white from the start then that could just be your graphics card's way of telling you that there is no communication to the mainboard processor and it does not know what to do but default to white. From my experience this case is usually just an absence of display or a dark screen, but I don't claim to know how all graphic adapters would handle this. When Booting the system BIOS has control over the display. It is done in a very low level and basic way to ensure no graphics compatibilty problems exist. If you are not seeing these BIOS POST messages then that should be your bigger concern over the screen being white. My guess is that once you solve that then the White screen problem will go away.
2007-09-06 09:58:49
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answer #2
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answered by Rick A 3
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1. Did you know what you were doing? If you are new to this, it could be anything. If you can't get help, think back - did you use the proper screws to attatch it to the case? is it touching anything it shouldn't? (experimenting isn't bad, but its always smart to read up on it first :D)
2. Is the video card on board the motherboard or is it a seperate card? If it is a new wizbang PCI Express card, is it plugged in with the seperate power attachment? Is it seated properly into the slot? I know this all sounds dumb, but youd be surprised how easy it is to overlook something like this.
3. What do you have plugged in? Unplug everything but the video, mouse, and keyboard when troubleshooting - it saves you a load of trouble half the time.
4. Do you have the motherboard manual? Check the motherboard manual, if you don't have one download it from the manufacturers website (youll probably need Adobe Acrobat Reader to read it!!). Look it over and see if theres anything you put in wrong. If its a dell or HP, the manual can be harder to find, but its out there.
5. Does the pc boot up? Some make beep codes when they start up normally, but all make beep codes when they don't. Is the memory seated properly and in the right slots? Try taking out all memory but one module - if its in the wrong slot (like for dual channel with 2 modules) it will not run (video needs RAM!). Do the hard disks spin and make noise?
Let me know if it works!
2007-09-06 09:36:49
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answer #3
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answered by Kevin R 2
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I would make sure the video card is pushed in all the way - maybe its loose or you could have damaged the video card causing the screen to become white, another thing to try is updating the video card driver but I've never had a white screen even with the wrong driver.
if you have another computer I would try installing its video card and see if the white screen goes away. then you will know if its the video card or not.
2007-09-06 09:31:51
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answer #4
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answered by Window 4
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Have you tried a replacement Graphics card?
2007-09-06 09:32:12
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answer #5
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answered by mrtangster 1
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