To ROM: Tool I use is 10 Euro carpenter

To ROM:
Tool I use is 10 Euro carpenter hot air fan for lower preheating, and AOYUE 852++ for heating from the top. Also I use 5 euro temperature sonde for measuring mobo temperature. It works:) I needed some time to find right combination of low and uper temperature ratio, and burned few chips. Now, I soldering them succesfully. I bought WELDER T860 IRDA tool, but I found that it`s very dificult to control cheap chinese Infra red heater, and number of burned chips is biger then with first method.

To ROOT:
I have HP DV6000 with descrete graphic (GO7200 etc) and integrated graphic. I would put G6100 instead G6150 in integrated solution. What BIOS to flash instead original DV6000 bios if it don`t work?

HP PAVILLION DV6000 (dv6254eu) GRAPHIC CHIP REBALLING