🚀 go-pugleaf

In message <7kh6cl$qoc$2@tribune.usask.ca> on 19 Jun 1999 22:42:29
GMT, chris pitzel <chris.pitzel@nospam.usask.ca> wrote:

>>>how hot does the seagate cheetah run? the ultra/wide scsi drive. 10k rpm
>>
>>Too hot to run without a cooler of some sort.
>
>A well designed case with both adequate forced air ventilation, as well as
>construction using highly thermally conductive materials (a case made of
>gold or copper would be ideal, but plain old metal works just fine..) is
>able to cool a Cheetah just fine

A lot of metal is a big help. And if the HD is getting a lot of air
flowing over it from the fans, it would be alright. But you would have
to be careful to ensure that this airflow isn't diverted somehow.

>>>i have a well ventelated case,, will i require a cooler for this drive??
>>
>>Not if you don't mind buying a new one on a regular basis. Otherwise,
>>yes.
>
>Not necessarily.  There is a difference between 'well ventilated', and
>'well designed' though.  All the coolers in the world aren't going to help
>a Cheetah if it's mounted in plastic because the drive's surface area
>simply cannot radiate enough heat to keep itself cool (that's why
>conductive cooling is required, and such requirement is explicitly stated
>in the Cheetah's manual.).

That's true, and something I neglected because I was assuming it would
be mounted on metal. But unless they've changed greatly in the past
year or so, they will get very hot if there's no airflow directly over
the drive.

<snip>

>>I have a Seagate Barracuda ultra/narrow SCSI at 7200rpm. At first I
>>thought I could run it without cooling, but it got much too hot for
>
>Which model?  The most recent 7200RPM Barracuda that gave off a lot of
>heat (on-par with the Cheetah) was the ST15150 series.  

Mine is a ST19171N. It isn't as hot as the Cheetah, which is one
reason I assumed a cooler would be necessary on a Cheetah.

>>comfort. I simply mounted a fan in the case so that it would be
>>blowing directly over the drive, and now the drive is only luke-warm
>>to the touch even after it's been running overnight.
>
>How large is your enclosure, and how much metal does your enclosure
>contain?  

It's a mid-tower, and is entirely metal except for the front bezel. To
be more exact, it's an Enlight EN-6680 series, Baby AT form factor. I
have a total of five fans: the PS fan, an exhaust fan above the PS, an
inlet fan in the front/bottom, the fan on the processor (PII-400), and
the fan mounted to blow on the HD.

>>Seagate's Barracuda and Cheetah drives are, IMO, among the best
>>available (their IDE drives, OTOH, leave much to be desired). However,
>
>Indeed, and the Jaguar will be 'upping' the ante with 14.4kRPM spindle
>speeds.   They're fairly close to formally announcing it (even though
>there are quite a number of evaluation units already running out there..).

I haven't seen a Jaguar yet, but judging by the specs and Seagate's
history with these drives, it's going to kick some serious butt.

>>they are very hot and very noisy (and don't forget very expensive), :)
>>so if you don't want a cooler or if you have a problem with some
>>noise, consider another brand.
>
>All drives require cooling of some sort -- that's why 90% of all drives
>installed in PC's overheat on a regular basis.

Yes. Depending on how loaded the system is, it's a good idea to have
at least one extra fan (beyond the standard power supply fan and the
fan on the processor), and to be sure that there's sufficient airflow
around the drive(s).

--
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 Lindell B. Jones, Jr.          lindellj at mindspringg dott comm
 http://www.mindspring.com/~lindellj
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