[cctalk] Re: Xerox 820II U07 Power Supply magic smoke....

2022-10-15 Thread D. Resor via cctalk
Best I can tell the diodes are Passivated Silicon, Bead diodes, of which there are three flavors. https://pdf1.alldatasheet.com/datasheet-pdf/view/1073401/NJSEMI/A15A.html On EEVBlog it was suggested that these were Sintered Glass Bead diodes. I do believe they are still in okay working condi

[cctalk] Sun Fire V100 CPU not coming up on poweron

2022-10-15 Thread Alexander Schreiber via cctalk
Hi, I've got Sun Fire V100 that I'm pretty sure at some point in time actually worked, since I loaded the board with the maximum amount of memory supported (2G). Now, however, when powering on, the LOM comes up but upon issuing the poweron command the main CPU apparently doesn't, all I get is eit