I'm trying to fix a major problem but after many hours of sitting in front of my laptop screen, I still can't find a solution.
GPU: Intel HD Graphics 3000 ???
because the pre-installed OS couldn't boot into windows environment. I re-installed windows 7 pro x64 and then everything seemed to be right. However everything changed when I had to install graphics drivers. I tried every method and every site (hp, intel, windows) and most of graphic drivers versions. The problem is that most times windows crash and reboot just after welcome screen (sometimes before it) of some seconds later. Without graphics driver, using Standard vga adapter everything goes fine but the screen quality is too low and I can't use applications that use graphic hardware accelaration. I don't remember if specs of my refurbished EliteBook included extra discrete graphics card like other EliteBook products. Besides device manager doesn't detect something like this. Unfortunately I hadn't noticed driver details of the pre-installed OS. I need my EliteBook at my job, so I need to find a solution.
You have either Intel HD 3000 or Radeon HD 6470M, but I think the real problem is that you may have installed incompatible memory. The dead giveaway was that when you rebooted after installing the new memory the OS would not load. Compatible memory should "just work", not require a reload of the OS.
I'm planning tomorrow to install again my old memory of 4gb and re-install OS...If new memory is incompatible please let me know in order to replace it with another one compatible...Please attach a dual channel kit of 16gb which is compatible...I use my laptop at Live Dj Mixes, so I need this quantity of memory.