|
PureBytes Links
Trading Reference Links
|
Dear df,
A story, perhaps, but probably not much help:
My 2nd PC was an IBM-XT with 256 K of RAM and a whopping 10 Meg HD.
Eventually, I bought my 3rd PC and relegated the XT to collecting data from
my BMI satellite as a backup data source using a data splitter. The XT had
an internal fan, but, my, it was noisy. To combat the noise, I bought a 4 x
8 ft sheet of 4 in thick styrofoam and built a 6-sided, self-enclosure for
the XT, which I ran 24 hours/day --- with no fans (except the internal XT
fan), and no air inlet/outlet on the styrofoam enclosure. The 4 in thick
styrofoam container was warm to the touch. When I would open it, its
interior felt like the hot room at the local health club --- I would
estimate 150 degrees. Years later, when I got my 4th PC, I finally sold the
XT (bought for $4000, sold for $25) --- it was stilll running. It might
have been old, but it was mighty!
Sincerely,
Richard
df@xxxxxxxxxxxxxx wrote:
> I have two PCs in a cabinet behind my desk. With the doors closed (which
> do not seal airtight) and no fan to vent the cabinet, the air
> temperature in the cabinet varies between 82 and 86 degrees F. The PC
> cabinets feel warm to the touch but not hot. Each PC has a power supply
> fan, processor fan, and case fan (one case fan blows air out of the
> case, one blows air into the case, who knows why). The PCs seem to run
> without any difficulty.
>
> Is this an acceptable setup?
> What is the maximum acceptable ambient temperature for PCs?
> Should case fans blow air in or out of the case?
>
> Thanks for your help.
>
> -----Original Message-----
> From: CCountach@xxxxxxx [mailto:CCountach@xxxxxxx]
> Sent: Tuesday, January 08, 2002 1:52 AM
> To: omega-list@xxxxxxxxxx
> Cc: fritz@xxxxxxxx
> Subject: Re: the ultimate ... quiet machine
>
> In a message dated 1/6/2002 1:35:43 PM Pacific Standard Time,
> omega-digest-request@xxxxxxxxxx writes:
>
> >
> > Date: Sun, 6 Jan 2002 09:55:57 -0700
> > From: "Gary Fritz" <fritz@xxxxxxxx>
> > To: "omega list" <omega-list@xxxxxxxxxx>
> > Subject: Re: the ultimate .............
> >
> > I think the multiple mobos in one box is an interesting idea. Might
> > be able to get some efficiency of airflow/cooling etc, maybe make the
>
> > beastie a little quieter than N separate boxes.
> >
> > Noise is a concern for me. All those fans are quite a distraction.
> > I've already got 4 computers within 4 feet of me. Thank God one of
> > them is a laptop & virtually silent. Now I'm looking at buying or
> > building a dual-CPU monster, and it will probably be as noisy as the
> > other 4 combined. :-( If I end up building it, I'm going to put
> > some effort into researching the quietest fans.
> >
> > Too bad the boxes have to be nearby. If I could stick them 20' away
> > I could put them into the next room and noise would be no problem.
> > The CD drive, printer, etc would be inconveniently far away, but I
> > think I could live with that. But I don't think the video cable for
> > the monitor can be that long. Or is there a solution for that?
> >
>
> I have three computers in a closet about 10 feet from the desk. (One is
> dead
> right now.) I connect them into a KVM switch, and run a 25-foot
> video/mouse/keyb cable to the monitor/mouse/keybd. Since the dual
> system
> has dual monitors, there is a second video cable, and this monitor can't
> be
> switched. These cables are high-quality cables: they use tiny coax
> cables
> for each color instead of straight wires. With this type of cable you
> can
> go up to 100 feet. You can get these cables from Raritan (KVM company -
>
> www.raritan.com). The Raritan cable has a mouse and keybd cable molded
> onto
> the video. Convenient, but bulky. I just got a third video-only cable
> from
> L-Com - very thin, 25 feet long. (P/N CTL3VGAMF-25T - it was hard to
> find in
> their computer. www.l-com.com). If you live in an area that has big
> electronics parts stores you may be able to get such a cable there.
>
> My KVM is a Belkin. Personally I don't like Belkins now. It works most
> of
> the time, but has a tendency to hang, and I have to open the closet and
> push
> the button (I normally use the hot keys for monitor selection.)
>
> A dual-cpu system isn't necessarily noisier. Last summer I put together
> a
> dual 800 system and it is much quieter than the old 450. There are some
> very
> quiet power supplies and fans available; Enlight is one. Check out
> www.pcpowerandcooling.
>
> There are two fancy KVM concepts. One is to encode the KVM signals and
> transmit them over CAT-5 cable (CAT5 extenders they are called, and can
> go
> 1000 feet. It's a long walk to that CD-ROM). The other is to convert
> to
> TCPIP ! Then you can monitor your systems over the Internet. I'd like
> one
> of those, but they are mucho expensive right now. Cybex and Raritan
> make
> those.
>
> If you need quite drives, try the Quantum AS series. Quantum was bought
> by
> Maxtor, but they still make the AS drives. There is one model that even
> has
> an air bearing.
>
> donc
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.311 / Virus Database: 172 - Release Date: 12/27/2001
>
|