Packard Bell MB85 6 screen problem

Hi,

I wouldn't suggest those kind of troubleshooting step, instead use proper tools to reheat the graphics card. If you're confident enough to reheat the graphics card you can do that but a word of caution it's like a gamble, too much heat can damage your graphics card as well. I suggest you take it to a profession technician for them to check it. But surely the problem is with your graphics card.
 
"Are these fixes reliable?:"

hi,
its called reflowing; another method is reballing which can only be done with professional equipment.
Reflowing, if it is succesfull, if you are lucky, and dont damage the entire mobo, lasts only for a short period; i.e.: couple of hours or a month maximum.
Reballing is a better method, but also no warranty for long lasting succes.