[SunRescue] Sun4 VME Parts / Memory
rescue at sunhelp.org
Sat Dec 23 00:58:22 CST 2000
Dave Reader wrote:
> cool. finally got the 4/330's original cpu to behave. trick seems to be
> to turn it off, then turn it on very soon after. I guess this means a dead
> nvram battery and thats' not long enough for it to "forget" the defaults
> it gets told the first time around?
The NVRAM battery is likely the problem. In diag mode it will error on
"nvram write test" if that is the case.
> this one has 4.1.1 - but doesn't respond to "help", so i guess this was
> one of the roms they ran out of space in?
> the other 4/300 cpu has 3.0.1 (i think) and does respond to "help" - but
> 96megs takes /ages/ to test in diag mode.
There is a way to set the memory test to an arbitrary value. On later
roms "setenv selftest-#megs 0" at the ok prompt should do it. In old ">"
mode, setting 0x15 to 0 might work.
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