i have a DV6 with AMD 7690M XT 1GB, i7 2nd gen, i was wondering, is it possible to upgrade the graphic card? it's on a hybrid graphics card configuration. using INTEL in power saving and AMD in high performance. i know there are other DV6 models with better specs, so just wonder, interested in upgrading GPU ( even slightly ) and RAM from 4GB to 6/8GB