Re: (PM) PM-4 and heat problems

D. Scott Gardner (sgardner@livingston.com)
Wed, 12 May 1999 16:12:43 -0700

>We have a two-slot Portmaster 4. Slot 0 frequently runs 3-4 degrees
>hotter than slot 1, and has passed into "alarm" territory once (45
>degrees). It's in an air conditioned room, and moving a fan so it
>pointed at the machine seemed to help. Is it typical for the
>most-utilized card to run that much hotter than the other cards? Also,
>has anyone else experienced heat dissipation problems with a PM-4? Bit
>unusual to need to point a fan at a piece of hardware...

Slot 0 is probably going to be hotter since both of its sides are covered
by either the chassis or the card in slot 1. Slot 1 has one side exposed
so it has better heat dissipation. Do you have the blank cover pieces for
the rest of the slots? The PM4 was designed to have the best airflow when
all of the slots are covered. Also, you should be able to set the shutdown
temperature.

'set shutdown-temperature <30-90>'

If you set the temperature higher, then the alarms won't go off. I
wouldn't recommend setting it to 90 deg right away, but if you move the
temperature to 65 or so you should be fine.

D. Scott Gardner sgardner@livingston.com
510.737.2217

Lucent Technologies, Remote Access Business Unit
4464 Willow Road, Pleasanton CA 94588

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