I have four of these chips that I could not get them working on both of my Model 2 32 pin IC Saturn.
-The first chip on the left is marked SSIC7A, the crystal is missing in this one. Moving the crystal over from another chip and the drive spun up like normal but it recognizes retail and backup as audio CDs. On the back I tried bridging the other two points next to the 5V but is also thrown me to the audio CD screen
-The second chip marked SSB-02, when installed the laser/disc motor does not move.
-Ignore the third chip pictured
-Chip four marked EMSIC7 acts the same as chip two, I tried moving the jumper bridge and it does not make a difference.
-Chip five (not pictured) is labeled STKEYFA, it's also causes a unresponsive disc drive like chip two. It looks like it has two sets of 21 pin connector soldered in. One side says grey and the other white. The connector on the grey side is loose, and the white printed socket has pins on both side.
I have chips that work fine leading me to believe that the FFC, backup disc, and drive are fine. I tried thicker power cables and I am pulling the power directly from the power supply.