Chip for ps2 jap spch-30000 version?

I need a chip for my jap ps2 scph-30000 but no the version 4, my ps2 is a version5. Please help-me
Thanks

messiah2 or magic3.1. they're universal :)

the messiah 2 pro works on every machine the magic has been having trouble unless you get the magic 3.1.

DMS3 no?