Cpu, Gpu, and BIOS chip swap in a laptop

[jpsxc111]

I have a Acer Aspire V3 731 4690, currently running a Pentium B950, and some sort of graphics (Im not sure). I have to replace the BIOS chip because it failed when I tried to put in a second drive. My questions are:
How do I replace the BIOS chip?
What CPU should I implant (Chipset HM77)
What should I replace the GPU with?
Thanks for any help!
http://imgur.com/HwcWcyw

 

[TJ Hooker]

BIOS chip is typically soldered to the motherboard, replacing would be difficult.

Considering that this a laptop (and a budget laptop at that), upgrades to CPU/GPU are probably going to be severely limited or impossible. You're probably better off just getting a new one.

 

[jpsxc111]

True, new laptop may be the course of action here. Looking at the board again, the GPU is attached to the board :/