[Suns-at-Home] cooling disks on the sparcstation 20

[Craig Dewick]

The problems of overheating inside the SS5 and SS20 enclosure (same box - 
just a different system board, etc.) are I think one of the primary 
reasons why the Ultra 1's were designed with a larger enclosure.

The two drive bays in the SS20 are very bad for cooling, and if you run 
with two SM71 processors (the max config Sun actually recommends) things 
can get quite hot. If you try running two SM81's (which will work, 
providing the OBP is a high enough version) that exceeds Sun's recommended 
ceilings for temperature rise inside the enclosure and with two drives 
fitted (particularly older ones which run hotter), there's very little 
forced airflow to keep the ambient temp inside the enclosure, esp. around 
the drive bays, down to a safe level.

Regards,

Craig.

-- 
Post by Craig Dewick (tm). Web @ "http://lios.apana.org.au/~cdewick".
Email 2 "cdewick@lios.apana.org.au". SunShack @ "http://www.sunshack.org"
Galleries @ "http://www.sunshack.org/gallery2". Also lots of tech data, etc.
Sun Microsystems webring at "http://n.webring.com/hub?ring=sunmicrosystemsu".