I was going through the dump with a friend and found something interesting, It's probably been looked at before, but if it isn't then at least I can say I contributed something... lol.
yes technically there are 8.. a lot of times in production one or more comes out not working.. so in order to increase production they just disable the broken one (if more than one is broken its a useless chip).. if all happen to work they still disable one... leaving 7.. one being the "isolated" spu used by the hypervisor, os functions and decryption (stuff sony doesn't want us to see).. leaving 6 for games..
everyday i wake up and hoe that there is a thread in here "key found!"
but what i read here is similiar nice
good job guys go ahead with your work!!