At 11:33 -0400 29/08/2001, PCI PowerMacs wrote:
>Date: Wed, 29 Aug 2001 08:53:15 -0400
>From: Albert D'Amanda <[EMAIL PROTECTED]>
>Subject: Re: HDD questions
>Message-Id: <20010829125316.GVAG26252.femail9.sdc1.sfba.home.com@localhost>
>
>
>On Wednesday, August 29, 2001, at 04:00 AM, patratto wrote:
>
> >> i was wondering if it would be safe to put a 4,3 GB barracuda (it's a
> >> wide with a narrow adapter on it - the little ones) inside a PM 7500
> >> case without an extra fan.
>
>Hello
>I am assuming that you want to install as a second drive into the
>lower bay.
well, not particularly. the heat thing *was* considered. but i don't
even have a clue how to put in a fan into a quad 800, never mind a PM
7500. it looked a little large to fit in there anyway. it's a big
monster of a drive. prolly the "1/2" height folx would call it.
>
>My opinion only, direct answer to your question; its not "safe"
>"
> My reasons follow:
>
>What is the form factor of your Seagate? 3.5?. is it 1/3h (1"" high)
>or 1/2 height ( 1.6" high)?
the bigger one. i have a hawk 2,1 GB in there on the bottom already,
but i need it in the quad (i think), that's going to be moved out
probably.
>I would NOT install anything but a 1/3h barracuda into the lower bay.
>Barracudas get hot enough to fry an egg as it is!
yeah, i noticed that. though, it stays pretty cool in the external
case. it's just that the ext. case is noisy (short SCSI cable) and
i'm fed up with it.
> Putting a 1/2h in
>there is inviting disaster with respect build-up of hot-spots inside the
>box. There is virtually no built-in air circulation in that lower bay.
>These hot spots could( and I say , could) reduce the operating like of
>you box. Its not the CPU temperature itself, but the possible long term
>effect of hot spots on components on the mother board itself.
wit hall this in mind, would it be ok if it was in the top bunk,
until i got a fan in there (and figured out how to power the thing)?
>
>" Heat Kills" -"Use Internal fans" is my motto.
>
>In my case,7600, after I added a second 1/3h in my lower bay, I added
>two internal fans: a 3" one ( CompUSA) in the top hard drive compartment
>blowing air onto the CPU thru the built-in grille; and a miniature fan
>( from Taiwan) , internally, mounted in front ( on the internal face
>plate)of the lower bay ,blowing outside air into the lower compartment.
>A piece of cake to do both.
>I have installed a Radio Shack in/out thermometer setup with the remote
>sensor mounted on the top of my Sonnet G3 Crescendo 400 MHz / 1 MB
>card,close to the heat sink.
>Outside Ambient reads 23.9C( 75.0 F ) and CPU heat sink area
>reads 27.7C ( 81.9F) , a +4C internal temperature rise. Not bad. Makes
>me "happy" .And readings have been consistent over the last two weeks of
>operation..
>BTW Metronome reads 26C ,
what would be a tolerable �C difference?
>
>I am sure you are going to get posts from guys who will say that I am
>full of s--t; are running their processors at 55C with no problems,
>no internal fans,have called Sonnet and were told not to worry until
>60C, etc. But what "they" dont tell you ( or know) is what effect this
>internal heat has on the operating life of the components on the mother
>board itself!
well, my brother-in-law is a PC head (who's open to maccing - would
like a itBook G4) who sez that fans are a good idea if you have
things that run hot ( that's why the 'cuda has always been on a very
old external case with it's own fan). it's just that i don't know how
to hook up those things (like there's no cable or anything inside to
power it), and i don't have a fan (right now) i don't even know what
kind to get for it and so on - like i said, i'm a real newbie with
powermacs. and a quad 800 doesn't exactly run hot.
>
>End game
>
>My box will no doubt eventually "die" its natural death , but I will
>bet you a case of Coors light that it will not be because of heat.
not my beer, too weak (used to canuck beer). ;-)
BTW, thanks for the input folx.
simon
>
>albert
----------
"As soon as you trust yourself, you will know how to live"
-- Johann Wolfgang von Goethe (1749-1832)
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