Hello All - I just decided to knock up a quick list on my own forum and thought it may also be useful here.
Please be aware that the slim PS2's are now available in 4 version. Australia only saw 3 as far as I am aware:
SCPH-7000x = V12 (Also V12.1)
SCPH-7000x a = V13
SCPH-7500x = V14
SCPH-7500x a= V15????
The V12 still requires a laser fix to protect the laser from self destruction. The Summ0ne fix or the SubZero fix is recommended.
From the V13 onwards no laser fix is required.
The V14 has only just recently been released in Australia and as Sony normaly does - they have made some changes just before Christmas that make this version not compatible with the existing chips on the market.
I will list here as I come across them the newly released chips on the market that will work with the V14 (&15 in most cases):
Matrix Infinity with Firmware V1.68 or above (Green Dot)
Myth Chip (Matric clone)
Crystal chip with firmware updated to 18
DMS4 with ToxicBIOS v1.4
Mars A750 (only in the 75001 at this stage)
H20 with new code (Orange Dot) or H20 Pro
Apple75k (This is not an official Apple chip!)
Modbo v2.0 with new 1.68 flash
Please feel free to add other chips you may know of that are also V14 compatible.