New video card is causing BSOD constantly

All of your dumps are either 0x116 (VIDEO_TDR_ERROR) or 0xA0000001 (A custom bugcheck coded into ATI drivers). The 0x116 could be down to a bad GPU, or overheating, but with the 0xA0000001 showing up it will be worth trying different drivers first.

Code:

*** WARNING: Unable to verify timestamp for atikmdag.sys
*** ERROR: Module load completed but symbols could not be loaded for atikmdag.sys
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck A0000001, {5, 0, 0, 0}

Probably caused by : atikmdag.sys ( atikmdag+282ce )

Followup: MachineOwner

Download the 13.9 driver from here then use AMD Uninstall Utility to remove all traces of your current driver, CCC etc. Reboot and install the 13.9 driver.

   Note

When installing choose 'Advanced' or 'Custom' (whichever option is available, just not Express) and uncheck everything except the video driver.

Test with those drivers for a few days and see how things go. If you get BSODs in the meantime post the logs up straight away and we'll look at testing the card itself.