After I opened the PP1-007 unit and taken the photo I got to thinking of the old EDGE magazine cover art.

Yes I'm talking about the Issue 23 cover art of SEGA Saturn motherboard.





as shown this board was 171-6874D which is the version inside the Japanese launching Saturn console. However I got the below picture which is also the 171-6874D inside the lauching Saturn console. (I turned and cropped in the same way as the EDGE cover for easy comparison) Also take note that EDGE magazine replaced four large chip lettering on their surface. :)





One noticeable difference is one has the ROM chip soldered directly to the board while the other one has the chip sockert. And this chip socket is very similar to the 171-6874C board as shown below.



