How To Check My V4 PS2 with Gapped or Non-gapped Bios?

**ckt** · 11-20-2002,07:02 AM

Anybody can help?
My PS2 SCPH-30001 Date code: 1C with 8 screws on base.
Thanks.

**ProfessorChaos** · 11-20-2002,07:34 AM

thats what i wanted to figure out...

SCPH-35001
8 screws on back

**ckt** · 11-20-2002,09:45 AM

Originally posted by ProfessorChaos
thats what i wanted to figure out...

SCPH-35001
8 screws on back

Is yours a V4 PS2?
Cos I only know that V4 got Gap & N-gap bios.
How to figure it out?

**ProfessorChaos** · 11-20-2002,03:33 PM

u have to open your PS2 up...and check the bios chip i think...but i havent had the time to do that to mine...

and yes...my ps2 is a US V4 SCPH-35001 is the PS2 included in the "GT3 Special Edition Red Boxed PS2" that is what i have...

tify · 11-20-2002,03:42 PM

WIth the latest no swap modchips available Gap , NoGap doesnt make a diff at all. used to matter earlier for V4 NTSC with GAP bios since Gap ones could be fitted with Messiah and diff versions of Magic 2 for Gapped and No Gap.
But if its just out of curiosity and u guys dont wanna open ur ps2 and wanna know abt the BIOS, ( from my limted info..)

Date code 1A, 1B == 90% chance of GAP bios
Date code 1c + == 90% chance of No Gap.

pro installers in the forum who have worked on a lot of ps2s should be able to tell better.

**ckt** · 11-20-2002,07:09 PM

I had open up my PS2.
Just that for installing the Messiah 2, will there be any
different in the installation for gap & n-gap bios?

**Psoridian** · 11-20-2002,09:38 PM

Nothing significant.

**Nightbird** · 11-20-2002,10:41 PM

Points W,R,V,U,T,Q and M,N,O,P were swapped around the opposite sides of the bios for a no-gap v4 messiah install, so it's probably the same.

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