15 Dec
2001
15 Dec
'01
5:28 a.m.
On Dec 14, 16:16, Douglas Quebbeman wrote:
In particular, do any of you have familiarity with
systems that flash the on or power light as an
indicattor, sopecifiecally, of a power supply
problem?
The only thing I can think of that's *designed* to do something like that
is an SGI Indy; if you power one up and it can't even run the the code in
the PROM, it flashes the power light (which is a two-colour LED). The
usual cause id that there's no (recognisable) RAM at all in it. Probably
not relevant to a PR1ME.
Even less relevant, but in the same vein, is an Acorn Archimedes. If it
can't boot, and can't set up the display, it flashes a 4-bit fault code on
the floppy access LED. However, the code is RISC OS-specific.
Would anyone venture what a 2 Hz flash rate on the ON
LED of a Prime might mean?
If it's a short "on" and a long "off", it might be a power supply
that is
starting up , detecting a problem, and shutting off again. And retrying,
and ... Is there any accompanying, possibly fairly quiet,
whistle/buzz/click that occurs at the same rate?
--
Pete Peter Turnbull
Network Manager
University of York