SCOUG-HELP Mailing List Archives

<< Previous Message << >> Next Message >>

Date:	Wed, 13 Feb 2008 10:55:59 -0800
From:	J R FOX <jr_fox@pacbell.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: How much PSU is enough

Content Type: text/plain

Tom,

In trying to reply to this, I accidentally zapped your
message, but was able to retrieve it from the Digest
version of the Help List.

Date: Mon, 11 Feb 2008 20:46:12 -0800
From: Tom Brown
Subject: Re: SCOUG-Help: How much PSU is enough ?

>Just for a reference point, my large system has a PC
>Power & Cooling
> Turbocool 850, which is rated to run the Tyan
> Thunder K8WE with > 2 AMD Opterons, 2 video
> cards in SLI mode, and a goodly number of drives.
> I currently have 2 optical
> drives, 2 SCSI, and 1 IDE running on it. Never a
> hiccup, of course!

Wow, that is a lot heftier setup than anything I was
contemplating !

> What do you have hung on your UPS?

If we're talking about the Tower (and that is mostly
past tense, until I rebuild it), there were two 10K
SCSI hard drives, a SCSI CD reader, a non-SCSI
CD-burner, a floppy drive, a SCSI DAT backup unit, a
Zip Drive, and 3 fans. (Not everything was running at
the same time, of course.) Oh yeah -- don't forget
the DSL modem !

I don't believe that the scanner (seldom in use) was
ever hung off of the UPS, but given the cable jungle
under my desk, I couldn't say for certain at this
juncture. I always knew that anything like a laser
printer was a definite NO-NO for UPS connection; that
always went on a different circuit. My UPS is from a
specialty brand called Sutton Designs (which is now
defunct) but if you look inside, all the components
are APC. Some of those components have been replaced
in the course of service, and the batteries replaced
when necessary. The folks at PEI (dealers and service
for APC) tell me that even though the wattage involved
is a very small fraction of what a laser printer
takes, APC gear does not like even inkjet printers to
be connected, so I'm avoiding that now.

All of this was handled by a PCP&C 400 watt PSU, I
think. But this version of the tower only had a P3 in
it, with a Matrox G400 video card. The power demands
of the CPU & video in this case are likely eclipsed by
*today's* CPUs & video.

If we're talking about the Shuttle, that is a
different case. It is built from a kit, and you are
limited as to what it can contain in that small form
factor. Mine has a compact 200 watt PSU in it. But
it has just a P4 Celeron, only one HDD plus an optical
drive, and uses an onboard video chip rather than a
separate video card. Some things I've been reading
online claim that the Shuttles have very capable PSUs
of a special design, which belie their power ratings.

Jordan

=====================================================

To unsubscribe from this list, send an email message
to "steward@scoug.com". In the body of the message,
put the command "unsubscribe scoug-help".

For problems, contact the list owner at
"postmaster@scoug.com".

=====================================================

Return to [ 13 | February | 2008 ]

SCOUG, Warp Expo West, and Warpfest are trademarks of the Southern California OS/2 User Group. OS/2, Workplace Shell, and IBM are registered trademarks of International Business Machines Corporation. All other trademarks remain the property of their respective owners.