A guess:

Uninstall the drivers for your onboard graphics (nVidia) before installing a
discrete ATI graphics card. I have never owned a mainboard with onboard
graphics. I hope that there are graphics drivers (listed under the
"programs" control panel) as well as the nVidia chipset drivers.

HTH.

Return address scrambled. Replace nkbob with bobkn.

"dain waris" dain wrote in message
...
I have:
HP Pavilion m8013w
Athlon 64 X2 4800+ 2.5Ghz
ASUS M2N68-LA motherboard
ONBOARD GeForce 6150se
4GB Ram
Windows Vista Home Premium SP1

I have tried to install graphics cards in PCI-E:
Radeon HD 2400
Radeon HD 4850

I get BSOD on startup of Vista; Safemode shows last driver installed is
crcdisk.sys, then it hangs at that in safemode, or black screen in normal.

I can remove the graphics card, and it will start up properly.

At first I thought it was my ineffectiveness at disabling the onboard
Nvidea
card, but tech support for those cards insist that disabling/uninstalling
it
in device manager, and switching primary video adaptor settings in BIOS
from
onboard to pci-e should be sufficient.

Googling the crcdisk.sys BSOD reveals this was a common problem when vista
came out with "incompatible" hardware on a Vista upgrade from XP, and is
either a hardware conflict, or conflict between drivers, but I could not
find
a common solution.

My generalized hunch is that something with vista and the onboard card
doesn't like the new graphics card.

Does anyone have any thoughts on this, or a solution?