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PC only boots up sometimes


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#1
mozzer11

mozzer11

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Hello
I'm having a problem where my PC will only boot up properly sometimes. I sometimes turn the pc on and get to the windows loading screen but then it goes to a blank blue screen (not a bsod) with a loading cursor. Then the screen will go black and say 'no signal' and the monitor will turn off. Also I occassionally get a 'ati2dvag' bsod. Like I say, sometimes it boots up correctly and once it's loaded I don't get any bsod's. I've checked the cables are all in properly and updated my drivers but to no avail. Your help is appreciated!
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#2
phillpower2

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Hi mozzer11
Did you fully remove the previous drivers before installing the new ones, one of the main causes of this issue is not doing so.
Uninstall the driver correctly by going to Control Panel, then System, click on Hardware, then Device Manager and then choose to uninstall the device driver in Display Adapters.
Your PC should revert to Windows default driver and should give you a good indication whether this is the actual cause for the ati2dvag blue screen or not. If your computer runs fine without any BSOD occurrences then commence installation of the new ATI driver.
Ensure when updating, that you're not running any other programs and you have no prescheduled antivirus scans running in the background. As an extra precaution you should consider disabling certain devices that share resources with your card.
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#3
mozzer11

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Hi
I tried all that and it went ok but my main problem isn't the ati2dvag bsod, it's the non selective booting up.
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#4
phillpower2

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Do you have a valid XP CD?

If so, place it in your CD ROM drive and follow the instructions below:
Click on Start and select Run... type sfc /scannow (note the space) (Let this run undisturbed until the window with the blue progress bar goes away)

SFC - Which stands for System File Checker,
retrieves the correct version of the file from %Systemroot%\System32\Dllcache or the Windows installation source files, and then replaces the incorrect file.
If you want to see what was replaced, right-click My Computer and click on Manage. In the new window that appears, expand the Event Viewer (by clicking on the + symbol next to it) and then click on System.

Thanks to rshaffer61 for the above details :)
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