Hacking on a Sun 4/6xx (was Re: New to list...)

On 2003.06.04 20:50 Ethan Dicks wrote: It is more or less a SS10 in 9U VME form factor. (Or the SS10 is a 4/6xx in a pizza case without VME adapter.) Ewwww. A Clasic might be the slowest sun4m machine ever build. AFAIK it is comparable in "slowness" to a IPX. Hmmm, sun.hardware.FAQ.txt: SPARCclassic (SPARCclassic Server)(SPARCstation LC) (4/15) Processor(s): microSPARC @ 50MHz, 59.1 MIPS, 4.6 MFLOPS, 26.4 SPECint92, 21.0 SPECfp92, 626 SPECintRate92, 498 SPECfpRate92 SPARCstation IPX (4/50) Processor(s): Fujitsu MB86903 or Weitek W8701 @ 40MHz, FPU on CPU chip, Sun-4c MMU, 8 hardware contexts, 28.5 MIPS, 4.2 MFLOPS, 21.8 SPECint92, 21.5 SPECfp92, 517 SPECintRate92, 510 SPECfpRate92 Yes. The 3/60 case doesn't deliver -12 V. The 4/6xx CPU needs -12 V at a few mA only for the serial lines. It will run with a framebuffer, but you can't use the serial lines. I solved this problem with a simple charge pump voltage inverter that generates about -10 V from +12 V that I mounted in the 3/60 PSU. I have a shematic in PS somewhere. Well, as long as you don't need 30 A (smal config, peak 130 A at power on) three phase 400 V power for a single computer... (I know someone with a machine like that.) -- tsch??, Jochen Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/