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From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.sys.amiga
Subject: Re: Noisy A2000 fan
Message-ID: <2535@cbmvax.UUCP>
Date: Sun, 18-Oct-87 20:44:35 EDT
Article-I.D.: cbmvax.2535
Posted: Sun Oct 18 20:44:35 1987
Date-Received: Mon, 19-Oct-87 02:48:23 EDT
References: <485@cord.UUCP>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 32

In article <485@cord.UUCP> sis@cord.UUCP (S Schwebel) writes:
> I just received my A2000 and was very dissapointed by the incredible amount
> of noise its fan generates. I may have been spoiled by how quiet the A1000
> was, but I believe that objectively this new machine should not be this loud.
> especially when used in a quiet home environment. Would George Robbins or
> anyone else care to comment on a potential fix for this rather annoying
> problem? Help, pleeeze, as I'm beginning to regret that I ever sold my
> reliable old amy-1000.

Urp, I don't wanna comment on this, but somebody mentioned my name...

The fan is supplied by the power supply vendor as part of the power supply
assembly.  So far, we've been concentrating on overall reliability and
airflow and haven't heard too many complaints about the fan noise.  Perhaps
it is something we can improve in the future.

Please remember that the power supply/power consumption in the A2000 with
those built-in expansion slots is several times that of the A1000.  More
airflow is needed, which too often implies a bigger, noiser fan.  I was
forcibly reminded of this one day when I was testing an A500 prototype with
the old "zorro" expansion bus card, loaded with a disk contrller and 4 of
the 2MB memory cards.  It took quite a while to find a big enough power
supply and then I had to have one fan taped to the supply and one blowing
over the memory cards.




-- 
George Robbins - now working for,	uucp: {ihnp4|rutgers|allegra}!cbmvax!grr
but no way officially representing	arpa: out to lunch...
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)