It's a known fact that early PS3 consoles with the COK-001 main board had the EE+GS of the 75000 PS2 consoles with external RAM and metal IHS. Now, people often say that later PS3 consoles with the COK-002(W) main board only have the PS2 GS in hardware and emulate the rest of the system. This is written as such in the PS3 dev wiki as well as pretty much any other ressources on the internet. But at closer inspection... isn't it the PS2-on-a-chip found in SCPH-79000 and SCPH-90000 PS2s, which includes EE+GS+RAM on a single chip, that can be found on COK-002 boards? I mean... it's a plastic BGA package which looks similar to the original GS package, which is why such a misunderstanding might arise... but that exakt package is also used for the PS2-on-a-chip in late slim PS2s. Also, they have names that are very close to each other, even closer than the names of EE+GS of 75000 PS2s and EE+GS of CECHA/CECHB PS3s. The PS2-on-a-chip in 79000 and 90000 PS2s: CXD2976GB The chip on COK-002 boards: CXD2972GB This would mean that any PS3 that natively supports PS2 games does so in full hardware (except the PS1-CPU used for I/O on PS2s, which is always emulated). Can anyone give further information on this?
PS2Ident worked on old CFW CECHA/B, can't say for C. A/B vs C/E have different .self emu files, that means they are different. If we get back to ordinary PS2 they splits to ordinary and decard models. I don't know if it matters to PS3, I mean different IC and different .self emu files.
The 75000, 79000 and 90000 PS2s have different BIOSes, which is why the emu files might be different as well. At least this would be my guess.
