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Magic3 & V3 [nongap rom] bios points question
Magic3 & V3 [nongap rom] bios points question –
The only Magic3 diagram I can find for a V3 PS2 is from Modchip.ca, but they ONLY show a V3 gap-rom with the bios points on the 'via lane' on the bottom of the board instead of on the bios [which is on top]. If I can use these points with the different nongap bios board, stop reading & tell me so. If not, please read on.
I've looked at the points for the messiah2 V3 pdf [what would we do w/o Charlie_ps2?] which shows both gap & nongap rom points along with the magic3/messiah2 bios points for other versions. The problem with the modchip.ca diagram is that the 'via lane' points don't corespond correctly (as in continuity checked in ohms) to the pins that are used by the Messiah2. The attached pic has the Messiah2 bios points on the right, with the coresponding Magic3 diagram's letter in red.
What I need answered: should I use the points from the messiah2 diagram on the left of the attached picture [wire those letters to the same letters on the Magic3 pcb], or should I change them to the letters in red [such as 'M changes to V' and 'T changes to O']???
I have no idea where else to get a proper Magic3 diagram [which isn't the same as the modchip.ca diagram], nor can I find any older posts that cover this. PS: resistance between my tester's tips [pressed together] and other direct connections on the PS2 are ~0.5ohms, but the 'via lane' to topside bios points are all ~1.0ohms. WTF?
I need this PS2 done ASAP, since the chip is for my girlfriend's brother (who thinks he lost his PS2!) as an X-Mas present.
here you have a image for magic 3 v3 no-gap
here you have a image for magic 3 v3 no-gap –
here i post you a image from neoasic web page, in there you can see the point to soldered in a non-gap v3. I hope it works for you.
I have a v3 gap (bios underside of motherboard) and try the via-points, but seems not works, i looking for some help, because i can't find a diagram for conect the via points direct to the bios, but i'm not sure if the messiah2 are good for use with magic3.
i hope that pic can help you.