I have only had one experience of a temp warning in a computer room. This was a remote site - Christmas Island, Indian Ocean, long time ago - pair of HP2000F systems.
The room was in an office building that wasn't manned 24x7, so it had a temp switch that triggered a siren outside and a warning light so that somebody would attend promptly - support could be a week away, so a hardware failure was to avoided at all costs.
Anyway, one evening we were in the bar a few hundred yards from the office having some beverage, and the siren went off. On arrival at the computer room what do we see - the red warning light cover is starting to melt due to the bulb having too many watts ! IIRC the temp problem was quickly sorted with an AC unit reset, but we laughed a lot at the warning light melting.
Bit like the Lexus recall a few years ago for the centre brake light housing melting.
Regards,
John Pitman
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Dave Powell, MMfab
Sent: Tuesday, 13 September 2011 9:37 AM
To: [log in to unmask]
Subject: [HP3000-L] A500 temperature
Anybody know at what point the HP3000 A500's overtemp protection kicks in and it shuts itself down???? For that matter, any suggestions on safe operating temps for a room with switches, windows servers, etc?
This weekend the HP had its first overtemp shutdown ever.
Seems our art dept (they have a separate network from mine) added some stuff to the computer room last week. And (I am just finding out today) all air conditioning is shut off overnight & weekends -- and has been for years without incident. Whatever the overtemp cutoff is, the new stuff pushed us over the edge around 3:00 Sunday afternoon.
So now I get to push for overnight air-cond and a thermostat setting that will keep our stuff safe and running while not wasting too much electricity.
I'm not looking forward to this -- the energy-bill hawks want us to manually
shut down the new art-dept stuff every night :( Besides the busywork
factor, seems too easy to forget :( And since I stay late, I'm the one
they would expect to do it :(
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