Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!bj
From: bj@cbmvax.commodore.com (Brian Jackson)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A2000 internals, Fan, etc...
Message-ID: <14648@cbmvax.commodore.com>
Date: 25 Sep 90 20:35:30 GMT
References: <61050002@hpcljms.HP.COM>
Reply-To: bj@cbmvax.commodore.com (Brian Jackson)
Distribution: comp.sys.amiga.hardware
Organization: Commodore, West Chester, PA
Lines: 49

In article <61050002@hpcljms.HP.COM> brians@hpcljms.HP.COM (Brian Sullivan) writes:
>
>  I have recently taken a peek inside of my A2000HD and noticed that
>the 40MB Quantum drive was installed horizontally in the second 3 1/2
>floppy bay.  There are four standard mounting screws that hold it in place.
>I also noted that the A2091 SCSI controller has the identical four mounting
>screws, and could easily contain the Quantum drive.  
>  Does anyone know why Commodore does not ship the 2000HD with the drive
>mounted directly on the controller card?  Also, Since I am thinking about

Just a guess but it could be to alleviate the extra stress on the controller
board that could be caused by the drive's weight during shipping.

>getting a 2nd floppy drive, can I move the Quantum drive onto the mounting
>space on the controller?  If I do this will it be neccessary to low-level
>format the drive, since it will now be mounted vertically instead of 
>horizontally?   

I wouldn't worry about it.  I have my 2500/30 with 2 Q40s drives (one
on the card and one in the bay) up on it's edge so that the one that
was formatted flat is on edge and the one that was formatted on edge is
flat.  Nary a problem to date. And it's on 24 hours a day. And I have
essentially the same setup on my machine at home. Same story.

>  Finally while I had the machine open I performed the famous fan reversal
>on my machine since I too was tired of seeing all the dust accumulate inside 
>my machine.  The fan now blows air into the power supply and out of the front
>of the machine.  I am thinking of adding an air filter to the back of my 
>machine, has anyone done this?  Does anyone know why the fan as shipped pulls 
>the air through the case to the power supply instead of the more obvious method
>of blowing onto the power supply?  I would think the the most heat critical 
>components in the machine would be the power supply, so one would want the 
>maximum amount of fresh cool air blowing though the power supply?  Any ideas?
>

Hmmm, my machine's fan already blows the air out the back.
>
>        -- Brian --

A 2000HD, Brian??  Sheesh, I thought you HP dudes were more discerning than
that :) :) :)  What happened to that A3000 you were going to get ? :)

bj

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 | Brian Jackson  Software Engineer @ Commodore-Amiga Inc.                   |
 | bj@cbmvax.commodore.com    or  ...{uunet|rutgers}!cbmvax!bj   GEnie: B.J. |
 | "Fasten your seatbelt, I want to try something."                          |
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