Hi Peoples.......
Well, something weird happened.
After nearly 2 days of mucking around, changing ram and CPU's as outlined above, i decided to take the old semperon out, and replace it with the AM3 4130, with my friends RAM...
Started it up, and VOILA!!! it worked!!!?!?!?!?!?
I powered down, swapped 1 stick of MY RAM in it, and again it booted up.
SO after countless booting and powering off, it all finally works!!
So, the Corsair 1600 RAM does work.
The CPU was NOT easy to get into the M/B socket, but after 3 CPUs etc, when I dropped the what we thought was a broken pin on the CPU, works a treat so far
Ive formatted the HDD, and put windoze on it with M/B drivers, all good, so I hope this helps someone out there
Cheers Rob.
PS special thanks to ohyes247 for his help