Different markings on Centris 610 logic board - GTS 12 94V0

[wottle]

I have been chipping away at assessing and fixing up a bunch of computers and I finally made my way to a stack of Centris and Quadra 610s. I've been working through them, but one of the boards looked different and had different markings and I was wondering if they had any special meaning. The one edge by the NuBus port has GTS 12 94V0. Not sure if it is a 1 or an upper case i, and not sure if the last character is an o or a zero. on the opposite side by the power connector, it has "GTS 12 94V0" again, wrapping around a trace. Finally, it has the same "GTS 12 94V0" on the bottom side, with 213S to the side.

Any thoughts on why of the 10 or so logic boards, this was the only one with that marking? Everything else about the board looks the same...

Also, if anyone has any tricks to getting a CPU pin out of a socket, that would help me with this board!

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[Forrest]

GTS 12 94V0 is the PCB manufacturer and 94V0 UL flammability rating. I’m guessing Apple had more than 1 PCB manufacturer.

 

[wottle]

GTS 12 94V0 is the PCB manufacturer and 94V0 UL flammability rating. I’m guessing Apple had more than 1 PCB manufacturer.

Interesting. Good to know. Thanks for the information.

 

[wottle]

Also, in case anyone else has a small pin stuck down in a 68040 socket like I did, I was able to get it out by using a scalpel to widen the opening in the plastic to enlarge the hole. With the, I was able to take one end of a straight tweezers and push it down to the side of the pin and then apply side-ways pressure while pulling up. After a bunch of tries, I got it to protrude out of the plastic enough to extract it. This logic board is back in action. Thanks!