Dell Studio XPS 1645 graphics corruption

Hi,

I was wondering if anyone could help me with this issue, which I think is being caused by my graphics card (ATI Mobility Radeon 4670 1GB - integrated).

My laptop has corrupted graphics (horizontal lines across screen). This happens in the start-up BIOS and in Windows.

The laptop will no longer boot to Windows normally with the graphics card driver installed. If it is installed, a BSOD will occur (BCCode: 116). If I uninstall the driver, it does allow me to start Windows normally, but automatically downloads and installs the graphics card driver which on restart produces the same BSOD.

When the graphics card driver is installed, I can only get into safe mode, where I have to uninstall it to get back into normal Windows.

I have tried to install a new driver, but cannot due to CCC not detecting any card. However, I'm don't think that this is a driver issue due to the corruption occurring at start-up BIOS.

I have tried plugging the laptop into two external monitors (VGA and HDMI) and the corruption still appears on the screens.

The problem is not shown on an actual screenshot (I took a screenshot and emailed it myself to open on another computer).

I was just wondering if anyone would be able to identify what exactly is causing this.

I had initially thought it to be the LCD screen causing the problem, but I cannot understand why the graphics card driver wouldn't work if it was an LCD problem. I have read that it may be due to the graphics card becoming unsoldered from the motherboard due to overheating, thus requiring it to be resoldered by reflow or complete BGA replacement.

UPDATE: Have bought a new motherboard, which seems to have corrected the issue.

 

i think your GPU is shot.

you could reformat windows to see if it's purely a sfotware problem, but it doesn't seem like it.

i'd contact dell support and ask for a repair/replacement

 

The only other thing I can think of besides the solder coming up is that the VBIOS has somehow gone a little funny.