upgrade HP DC7600 motherboard?

[Hermeneanu]

I want to upgrade my parents PC, and I'm thinking to upgrade the motherboar, CPU and RAM.
Can I do this to a HP DC7600, what format should I use for the mother board ?

 

[Calvin7]

dc7600 Convertible Minitower PC
dc7600 Ultra-slim Desktop PC
dc7600 Small Form Factor PC

Convertible Minitower PC uses Micro-ATX form factor.

 

[Hermeneanu]

it's a dc7600 Small Form Factor PC, any idea what the mother board format should be?