Sadly, speccy doesn't give the necessary information.
As I mentioned in my previous post, you need to look at the motherboard itself to get correct info.
If you look at the motherboard it will have the model name printed on it, usually just below one of the pci(e) slots. Then, in the bottom left hand corner it will have the revision number: Rev 1.2 for example. This revision number, along with the correct motherboard name, determines which BIOS file is required as motherboards with the same name may need a different BIOS for different revision versions.