Original post by: Si Brindley ,
Yes, you can. I'm typing this on such a machine, with an SSD replacing the original HD. You can do this by following along the iFixit teardown, plus a bit of common sense and wriggling components in sensible ways (it's tightly packed in there). You won't go near the Radeon chipset, so the steps for fitting an SSD are the same whether yours has discreet graphics or not.