Most PS2 chips require minimun ca. 14-24 wires. It depends on the version of your PS2 if it's hard to install, for example on a V3 PAL PS2 (early model) you need to solder to the tiny legs of a TQFP-controller chip... Not that easy *g*
The chip does not really affect online gaming, what is more important is DNAS.
An un-patched backup copy will not return a valid Disc ID, because the Disc ID cannot be copied with usual equipment (DVD-writer, CD-writer).
Therefore it needs to be patched into the game.
Consoles using games with mass-duplicated Disc ID, which are spread on the internet will be banned.(to get it working again is change of machine ID).
HD-Loader is a special disk, that allow copying games to an internal harddrive, much like Evo-X... Please note, that HD-Loader discussion is not allowed here.
The HD-Advance is just a crappy clone of HD-Loader with changed menu.
PS2 DTL-H30001 /w no need for chip :-)
PS2 DTL-H10000S /w no need for chip - strange thing....
PS2 SCPH-30004,V3 /w DMS3 2.0, severly damaged! :-(
PS2 SCPH-30004 /wo chip (need new laser)
PS2 SCPH-50004 /w Crystal (severly damaged!)
PSX DTL-H1102 /w no need for chip :-) brand-new & boxed!
PSX DTL-H1002 /w no need for chip :-) (laser damage)
PSX SCPH-1000 severly damaged :-(
PSX SCPH-9002 /w MM3 stealth (laser damage)
PSX SCPH-102 /w 12C508A DIP 8 wire (ONECHIP)
DCT4Calc research & development