Sun Ultra 20 won't boot when warm
I have a Sun Ultra 20 station which has 4 GB of memory installed. (4 X 1 GB DIMM's). Since I installed the 4 GB of memory the station will only startup if I turn off the power button followed by turning it back on while holding in the front power button. It will work fine if I only put in two DIMMs, it doesn't matter which of the four I put in and passes every diagnostic I have thrown at it when it is running. Of course, spending the money for DIMM's I can't plug in is not an alternative I am interested in.
The above startup method was described to me by one of the Sun support techs when I first called about the issue. He also told me that it was documented on internal documents circulating around Sun and they were going to fix the issue by releasing a BIOS update which has never materialized. Last time I called their support line the tech claimed to know nothing about the issue.
The real kick in the butt comes after the station has run for a while. After it has had a chance to heat up it will not turn back on until it cools off again.
Has anyone else had this issue and resolved it?
[1130 byte] By [
GPalmera] at [2007-11-26 17:42:04]
# 1
Hi,
probably I'm telling you not much new here ...
> I have a Sun Ultra 20 station which has 4 GB of
> memory installed. (4 X 1 GB DIMM's). Since I
> installed the 4 GB of memory the station will only
> startup if I turn off the power button followed by
> turning it back on while holding in the front power
> button. It will work fine if I only put in two DIMMs,
> it doesn't matter which of the four I put in and
> passes every diagnostic I have thrown at it when it
> is running.
Including the DIMM checker on the supplemental CD?
> Of course, spending the money for DIMM's
> I can't plug in is not an alternative I am interested
> in.
>
> The above startup method was described to me by one
> of the Sun support techs when I first called about
> the issue. He also told me that it was documented on
> internal documents circulating around Sun and they
> were going to fix the issue by releasing a BIOS
> update which has never materialized. Last time I
> called their support line the tech claimed to know
> nothing about the issue.
>
> The real kick in the butt comes after the station has
> run for a while. After it has had a chance to heat up
> it will not turn back on until it cools off again.
The BIOS can tell you how fast the dans spin while in setup mode...
The only thing I could think off are bad dimms...
Sorry not to be able to help you more.
