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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!munnari.oz.au!uniwa!DIALix!metapro!bernie
- From: bernie@metapro.DIALix.oz.au (Bernd Felsche)
- Subject: Re: 30degC = Dead A4000!
- Message-ID: <1993Jan12.021522.6270@metapro.DIALix.oz.au>
- Organization: MetaPro Systems, Perth, Western Australia
- References: <1993Jan9.144401.1@cc.curtin.edu.au>
- Date: Tue, 12 Jan 93 02:15:22 GMT
- Lines: 87
-
- In <1993Jan9.144401.1@cc.curtin.edu.au> rwesleyag@cc.curtin.edu.au writes:
-
- >What's the deal with my A4000! Its getting heat stroke!
- >The mouse starts staggering about the screen and the
- >old disk light flash becomes a permanent feature of the
- >front panel!
-
- Bewdy! A front panel!
-
- >This is not good. I heard a rumour that these machines
- >were shipped into Australia without heat sink cement
- >between the heat sink and chip, and when I recieved
- >my A4000 you could definitly tell someone had been
- >at it in a hurry ( mouse port screws missing, grubby
- >finger marks about its rear.)
- >I'm sure that the machine overheating like this is
- >doing some damage to the 040.
-
- Mainly the disk drive! Aren't you glad it's not a Quantum.
-
- >Today I went as far as to set a thermometer up next
- >to the case and a 30 degrees it became delerious.
-
- [ don't do that then? ]
- >(It was about 38 degrees outside, what a great big
- >hot country this is!)
-
- I put a temperature sensor up against the outlet air (with a
- piece of cardboard behind it so that I wouldn't get a
- "dynamic" reading). Outlet air was 34.7 C, with ambient 26.4 C.
- At other temperatures, there still appears to be about 8 C
- rise. Not much air flow though; you get more when ants fart. :-)
-
- Any idea where the cooling air is supposed to enter. My
- A2000 has at worst a 3 C rise, but then the fan is 20 dB
- louder (not so bad when you're flying an F/A-18).
-
- >Seeing as Im using my A4000 to make a quid at the
- >moment I and another friend who is having a similar
- >problem invested in a chip mounting fan (like the
- >magnum 040 boards have I think!) and guess what,
- >no difference, maybe lasts just a little longer.
- >Actually, I know for a fact that overheating this
- >chip is doing some damage but if these things are
- >meant to run at 37 degrees?????
-
- More likely, not the 040. What about the other stuff!
- There's more than an 040 inside the box!
-
- >What I would really like to know is WHOS RESPONSIBLE!
- >If this batch of A4000s were bench tested overnight
- >and died shortly after everybody went home then they
- >could have been left overheated for hours! This would
- >certainly reduce thier heat resistance even after the
- >heat cement was added (if indeed it was amiss in the
- >first place.)
-
- >I'm sure that commodore would environmentally check
- >these machines out but maybe you missed about 30 degrees
- >C at about 12% humidity.
- >I'm willing to bet that this is probably the hottest spot
- >in the world A4000's are being used at the moment and
- >there are only about 7 here.
-
- Well, I bought the first one in the State according to the
- dealer. You must be a developer - I guess that makes me a fixer!
-
- >Any comments or similiar experiences!
-
- Mine's not crashing.
-
- >Adam and his (not so) Cool Amiga4000
-
- When you're hot, the A4000's *hot*.
-
- You could drill a hole in one side of the base, slightly
- tilt the box so that that end is the low point, the connect
- the garden hose to the high end of the base and trickle
- water across the metalwork. Not quite immersion-cooled like
- a Cray, but certainly in the spirit.
-
- :-) for the humour-impaired
- --
- +-----+ Bernd Felsche _-,_|\ #include <std/disclaimer.h>
- | | | | MetaPro Systems Pty Ltd / | \ bernie@metapro.DIALix.oz.au
- | | | | 328 Albany Highway, X_.'-._/ Fax: +61 9 472 3337
- |m|p|s| Victoria Park, Western Australia 6100 v Phone: +61 9 362 9355
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