After loading video card drivers, system reboots after XP load screen

I've just recent finished assembling a new system and am having problems after loading the video card drivers.  The system functions normally using the VGA drivers, but as soon as the video card drivers are installed and the system rebooted, the system will "crash" right after the XP splash screen.  Just as the system appears to be going to the windows desktop, the signal to the monitor seems to drop out.  Reseting the system and starting up in safe mode will allow me to get back into the system and uninstall the drivers, as which point the system operates normally back in VGA mode again.  I've tried the system on two different monitors (19" CRT and 15" LCD) with identical results.  

The system is running an Asus A8V motherboard with the lastest BIOs and a Asus V9999 (nvidia 6800) video card.  I've tried multiple versions of the Asus enhanced video card drivers as well as the latest Nvidia forceware drivers.  The system is running 1gig of dual channel memory which I test with the memory test application mentioned else where on the web site with no failure observed.  Additionally, the system has a 500W power supply, so I don't think that power is an issue.

Attempts to adjust the screen resolution and refresh rate after driver installation has not worked as the system requires reboot after driver installed before any changes to the settings can be made, but the system hangs during the reboot.  Getting back into the system in safe mode reverts the drivers to the VGA drivers so no chages to the refresh rate can be made (hardware defaults only)

If anyone can provide any help, it would be greatly appreciated.  I'm at my wit's end here.
bunniwayAsked:
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wesly_chenCommented:
Hi,

  Did you check the Asus website for FAQs?
  If you can provide your XP version (SP2 ?), exact model number of Asus motherboard (A8Vxx) , and some
more information, then people here can more understanding to assist you.

Regards,

Wesly
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bobo_techCommented:
Did you try the latest reference drivers for the video card from http://www.nvidia.com/object/winxp_2k_66.93 ?  Not the force ones but the proper drivers for the video card itself?

Boot the system enabling vga mode (hit F8 just after the post process).  That should allow you to get into the vga mode.  While in vga mode, install the newest Detnator drivers (the ones from the link above) and then reboot and see what happens.

I did not see that yhou mentioned that you used the latest detnator drivers which is why i am suggesting them.
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nobusCommented:
it could be a faulty video card also; so try with another one if possible, and return the bad one under warranty
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bunniwayAuthor Commented:
I've thuroughly looked through both Asus's and Nvidia's FAQs and troubleshoot guides for some information relating to the problem and haven't found any.  The system is running XP with SP2 loaded and the motherboard is an A8V Deluxe model.

I have tried loading nvidia's 66.93 rev drivers as well as Asus's 61.21 and 62.11 enhanced drivers with identical results regardless of the drivers installed.  I can get back into window via safe mode, but only by uninstalling the video drivers can I get the system to boot back up normally.  I've tried reloading the drivers in safe mode with the same results.

I have also installed the video card into an older win98 system and loaded the current nvidia drivers for win98.  The system booted up fine and had full driver functionality so I don't think that the video card is defective.
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deezsolutionsCommented:
Is this the mobo that you are using?     http://usa.asus.com/prog/spec.asp?m=A8V%20Deluxe&langs=09 
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wesly_chenCommented:
> I have also installed the video card into an older win98 system and loaded the current nvidia drivers for win98.
How about install the old graphic card into your Asus motherboard?
If this way works, then there are some compatibility issues between your moterhboard and graphic card. (Asus board
with Asus card ? odd!)

Wesly
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bunniwayAuthor Commented:
The posted link is the motherboard in question.  Although, atfer reviewing the specs again, I noticed the AGP slot has (1.5V only) list after it.  Is it possible that the V9999GE is trying to pull to much power once the video drivers are loaded and causing the system to lock up once it tries to switch to the high video settings after the VGA splash screen?  The V9999 is an over-clocked 6800 but I can't find any details on it's voltage rating.  Any thoughts?
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nobusCommented:
Why don't you contact ASUS on this matter? Since it is all ASUS, they should be able to help you, and in the past i had good experiences with their support
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wesly_chenCommented:
Hi,

   You can check your AGP card are 1.5V or not with the following URL:
http://www.directron.com/15agpguide.html

Wesly
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rindiCommented:
bunniway,

No comment has been added to this question in more than 21 days, so it is now classified as abandoned..
I will leave the following recommendation for this question in the Cleanup topic area:
Accept: nobus {http:12572550}

Any objections should be posted here in the next 4 days. After that time, the question will be closed.


Rindi
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