• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Sonnet/ZIF G4 1.0GHz

codyNC90

Well-known member
I am trying to find the differences between the Sonnet/ZIF G4 1.0GHz models to figure out what makes some revisions B&W compatible.

The CPLD logic on Rev. A is LC4384V-35F256-5I:
IMG_0087.png
I assume its the same for later revisions, but I don't have a picture to confirm that.


There is a chip "SC1173CSW" on the back which is a double DC/DC converter.
IMG_0079.png
This is replaced by "SC1182CSW" in Rev. C, which is a triple DC/DC converter.


Would it be possible to compare the logic in the CPLDs between the different revisions?
Any idea if uploading later revision CPLD code would make it compatible with B&Ws? Or, serendipitously possibly increase the bus speed from the bottleneck of 66MHz?
 

Attachments

  • IMG_0075.png
    IMG_0075.png
    13.3 MB · Views: 2
Top