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Having Trouble with New GPU

Last response: in Graphics & Displays
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January 1, 2014 12:37:39 PM

Recently, I decided to switch to a new graphics card. I purchased an ATI Radeon R7 260X. I installed the card, replacing my prior Nvidia card. Now, when I try to log into Windows (normal mode) the monitor only displays a purple lined dimly flashing screen.

I have suspected that this is due to a driver issue, and so I have tried to install the appropriate drivers via Safe Mode, which loads the display correctly -- but ATI Catalyst fails to load detection drivers and so no ATI drivers can be installed. I have read elsewhere that you cannot install drivers in safe mode and that this is the reason why the driver install fails in this case.

I can't install them in normal mode though because the screen just doesn't load, just displays the purplish lines.

I am running Windows 8.1. The monitor I have is an Acer H243H. I am connecting them with an HDMI cable. I tried with a DVI also and nothing changed.

Not sure where I can go from here. Any advice?

More about : trouble gpu

January 1, 2014 12:48:32 PM

Have you tried removing the drivers for the Nvidia card? In the past I have some odd problems when switching from AMD to Nvidia or the otherway around. One way would be going back into safe mode and removing the nvidia software in the control panel . Heres another way to do this using utility that will remove the files for you. http://www.guru3d.com/files_details/guru3d_driver_sweeper_(no_installer).html
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January 1, 2014 12:54:21 PM

roguecomgeek said:
Have you tried removing the drivers for the Nvidia card? In the past I have some odd problems when switching from AMD to Nvidia or the otherway around. One way would be going back into safe mode and removing the nvidia software in the control panel . Heres another way to do this using utility that will remove the files for you. http://www.guru3d.com/files_details/guru3d_driver_sweeper_(no_installer).html


Yes, I did try that while I was in safe mode. In fact I used that software after seeing it used for another solution for someone else. It still didn't solve my problem, unfortunately.
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Best solution

January 2, 2014 2:07:52 PM

You could even reset the bios, update bios, update your chipset driver on your mobo.
Well If that didnt help then you may need to swap components and see if its a hardware problem with the video card because that is a lot easier to double check hardware then reinstalling Windows to make sure it isent a severe driver problem which shouldent need to be done just because of upgrading a video card .I would start with do you have a second monitor to double check the default resolution its going is not out range of your current monitor. install the graphics card into another computer to confirm the purple line.
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