22 Jul
2001
22 Jul
'01
5:36 p.m.
The DECsystem 5400 does this as well. The fans are not the modern three
wire type with the RPM sensor, tho. (Not sure about on the 4000/xxx
series).
The same setup exists on the DECserver 5x0 series QBUS machines as well.
A Compaq field person told me once that the other fan is supposed to go
faster if one fails but we have had several fail on several DECserver
550's and I never noticed the audible pitch change.
The current VMS hobby licenses don't care about the version of VMS you're
running. Under the old hobby scheme I believe the licenses would work on
any version but you were only in compliance if you ran specific versions
of VMS.
On Sun, 22 Jul 2001, John Allain wrote:
snip
Do all
VAX-4000/200 machines make a loud fan noise when first
powered on, and then get much quieter?
I can vouch for my 3400,3500 that they do as you describe. At first
I thought it was some sort of problem with a current shortage, after
some experience I acccepted it as normal. It could be that the system
has fan speed in reserve for when it gets too hot, and this is just a POST
of the fan subsystem. Don't know this for sure though. and redoing an expired liscence. Anybody know if
Montagar can
permit the use of an older copy of VMS like OpenVMS 6.2?
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