Re: APC's Online UPS recommendation?
From: Steve Urbach (dragonsclaw_at_NOTmindspring.com)
Date: 06/24/05
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Date: Fri, 24 Jun 2005 05:34:52 GMT
On 23 Jun 2005 18:59:16 -0700, "Bobba" <bobbadagobah@hotmail.com>
wrote:
>Hello, thanks for reading this message.
>
>I'm writing from Latin America. I have read the UPS faq published at
>http://www.jetcafe.org/~npc/doc/ups-faq.html but found no answer to my
>question there, so I though I could ask for some help in this
>newsgroup. I need to buy a online UPS and I have had little success
>looking for one in local stores, which only sell "line interactive"
>UPSs. Because of that I have decided to buy an UPS from APC. I have
>visited APC's web site and examinated the recommendations made by its
>UPS configuration engine
>(http://www.apcc.com/tools/ups_selector/index.cfm) but the
>configuration engine is not very configurable and I could not find out
>whether their most accessible models were "lineinteractive" or "online"
>UPSs.
>
>My questions would be the following:
>
>given my computer's configuration;
>
>1. What amount of VA would you recommend for a UPS to use with this
>computer and the computer I would probably buy 4 years from now to
>replace the current one?
APC suggests that UPS batteries be replaced after 3 years or sooner if
frequent full discharges.
>
>2. Which line of APC's online UPSs is less expensive?
There is Full on-line (the inverter always drives the load),
Buck/Boost AVR, Boost AVR, and Standby
Boost compensates for Brown outs. Buck reduces overly high voltage.
The buck/boost AVR model like the RS series is a good $$ saving -
performance compromise when full time on-line conversion is not
needed.
>Our local power supply "off the wall" is of 220 volts and my computer's
>configuration is the following:
>
>case: 400 watts Midi Tower
>monitor: samsung syncmaster 550s
>Motherboard: Asus p4800-mx with integrated audio, video, sound and
>ethernet
>Processor: Intel Celeron D 2.4 Ghz
>Ram: 2 GB in four pc3200 512Mb sticks
>Hard Disk: 80GB sata
>Optical device: LG double layer DVD burner
>External hard disk: 80GB ata encased in an external usb enclosure
>
>This computer is new and I have had already a fried motherboard. I plan
>to buy a new computer 4 years from now with a similar configuration but
>actualized to future standards. That future computer would also feature
>the following changes:
>
>monitor:LCD display
>Ram: from 8 to 16MB
>Processor: pentium
To big is always better than too small (VA rating) :) .
To some extent, unused excess VA capacity allows for longer run-time.
>One more time, thanks for reading.
>
>Best Regards
>
>Bobba
Steve
, _
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