clh333
Veteran Member
Going through a Model 4D motherboard that appears to have suffered some damage through exposure to the elements I found a few "features" that at first I didn't recognize:
First, there are a number of "jumper" or "bodge" wires running here and there. I'm no expert but even the early NGA boards didn't have this array of "extra" wiring. And at U4 there is a strange piggyback apparatus where the system ROM should be. Prying things apart (carefully, due to rust on the legs of the ICs and in the sockets) I found a small circuit board with a Dallas DS1216 inside the carrier.
Apparently the DS1216 is still available from Maxim, but I'm wondering if anyone knows who made this modification and whether any of the extra wiring is in support of this modification.
Thanks.
-CH-
First, there are a number of "jumper" or "bodge" wires running here and there. I'm no expert but even the early NGA boards didn't have this array of "extra" wiring. And at U4 there is a strange piggyback apparatus where the system ROM should be. Prying things apart (carefully, due to rust on the legs of the ICs and in the sockets) I found a small circuit board with a Dallas DS1216 inside the carrier.
Apparently the DS1216 is still available from Maxim, but I'm wondering if anyone knows who made this modification and whether any of the extra wiring is in support of this modification.
Thanks.
-CH-