UPS for Abit mobo computer

[Guest]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

How does one relate the UPS needs for a particular computer/power
supply. I am upgrading to a 530W power supply for my Abit mobo and
system. Does this mean that any UPS I may buy needs to support 530 Watts
or higher ?

 

[vanguard]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

"Edward Diener No Spam" <eldiener_no_spam_here@earthlink.net> wrote in
message news:SluAe.1663$oZ.831@newsread2.news.atl.earthlink.net...
> How does one relate the UPS needs for a particular computer/power
> supply. I am upgrading to a 530W power supply for my Abit mobo and
> system. Does this mean that any UPS I may buy needs to support 530
> Watts or higher ?


530 watts is its power output, not its power consumption. You never
mentioned the efficiency rating of the power supply. If, for example,
the efficiency was 70% then the power consumption would be 530 watts /
0.70 = 757 watts. Are you actually drawing 530 watts from your power
supply or actually expect to draw that much with later addition to your
computer's components? What else are you going to connect to the UPS?
Please explain what good is a workstation's system unit on a UPS if the
monitor is not also connected to the UPS. A file server can run without
a monitor but a workstation is for use by a *user* and that means you
need to *see* what is going on.

 

[Guest]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

Try this link; you should find all your answers at their site:
http://www.apcc.com/


paul m diener, D.Sc. Information Technology
Microsoft Windows XP Associate Expert
diener & associates ltd
small office network specialists
"Edward Diener No Spam" <eldiener_no_spam_here@earthlink.net> wrote in
message news:SluAe.1663$oZ.831@newsread2.news.atl.earthlink.net...
> How does one relate the UPS needs for a particular computer/power supply.
> I am upgrading to a 530W power supply for my Abit mobo and system. Does
> this mean that any UPS I may buy needs to support 530 Watts or higher ?

 

[Guest]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

Vanguard wrote:
> "Edward Diener No Spam" <eldiener_no_spam_here@earthlink.net> wrote in
> message news:SluAe.1663$oZ.831@newsread2.news.atl.earthlink.net...
>
>> How does one relate the UPS needs for a particular computer/power
>> supply. I am upgrading to a 530W power supply for my Abit mobo and
>> system. Does this mean that any UPS I may buy needs to support 530
>> Watts or higher ?
>
>
>
> 530 watts is its power output, not its power consumption. You never
> mentioned the efficiency rating of the power supply. If, for example,
> the efficiency was 70% then the power consumption would be 530 watts /
> 0.70 = 757 watts. Are you actually drawing 530 watts from your power
> supply or actually expect to draw that much with later addition to your
> computer's components?

Let's say, just as an example, I do. Then what is the minimum UPS
wattage I need to support my computer and its power supply ?


What else are you going to connect to the UPS?
> Please explain what good is a workstation's system unit on a UPS if the
> monitor is not also connected to the UPS. A file server can run without
> a monitor but a workstation is for use by a *user* and that means you
> need to *see* what is going on.

Of course. I need to add in my monitor's usage also. But I am just
looking for a good formula to determine what the minimum UPS wattage
should be that I get. Also I do not understand the relationship between
the UPS VA and the wattage. So I am looking for hints there also.

If you or anyone else wants to point me to somewhere I can read about
UPS in relationship to the wattage used on my system, and how to
determine the wattage actaully used on my system, I will be glad to read it.

 

[Guest]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

On Mon, 11 Jul 2005 13:19:46 +0000, Edward Diener No Spam wrote:

> How does one relate the UPS needs for a particular computer/power
> supply. I am upgrading to a 530W power supply for my Abit mobo and
> system. Does this mean that any UPS I may buy needs to support 530 Watts
> or higher ?

The simple as is no. About any 400va ups would work for a short period.
But the real question is how much power the things you are going to plug
into will draw and how long you want it to run (which equates to the ah of
the battery). I'd suggest a 600va UPS with a 7ah battery as minimum.

--
KT133 MB, CPU @2400MHz (24x100): SIS755 MB CPU @2330MHz (10x233)
Need good help? Provide all system info with question.
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm

 

[Guest]

Archived from groups: alt.comp.periphs.mainboard.abit (More info?)

"Edward Diener No Spam" <eldiener_no_spam_here@earthlink.net> wrote in
message...
> Let's say, just as an example, I do (draw 530W). Then what is the
> minimum UPS wattage I need to support my computer and its power
> supply ?

Did you read my original post? UPS's are usually sold via their capacity
(VA) not "wattage" - although some smaller ones do have a maximum
instantaneous power/current draw rating.

Obviously in this latter case you need to make sure that the minimum
instantaneous power rating of whatever you buy, if indeed it has such a
rating, is at least 530W.

> Of course. I need to add in my monitor's usage also. But I am just looking
> for a good formula to determine what the minimum UPS
> wattage should be that I get.

See above and my previous post.

> Also I do not understand the relationship between the UPS VA and
> the wattage. So I am looking for hints there also.

Wattage is a measure of the amount of power drawn by the load. The "VA"
rating of the UPS is a measure of the *capacity* of the batteries.

> If you or anyone else wants to point me to somewhere I can read
> about UPS in relationship to the wattage used on my system,

APC have some good product info on their site, including tables that will
give you an idea of the expected runtime off various loads for each of their
UPS models. www.apcc.com

> and how to determine the wattage actaully used on my system, I will
> be glad to read it.

You could use your mains electricity meter to gauge the mean power
consumption of your system, albeit slightly inaccurately. Check the
consumption level of your meter over, say, an hour, with the computer
switched off. Then switch it on and measure the amount of power consumed
over another hour. From this you'll be able to roughly ascertain the
wattage. Of course you have to make sure that you don't turn any lights,
ovens etc. on or off during this testing or you'll ah heck the data.

Alternatively it's relatively easy to reach a spec figure for the power
consumption of your PC. You should be able to find out the thermal design
power of your CPU, graphics card, hard disks, monitor and so-on from the
manufacturers. Add all the in-system power ratings up, and add another 35%
or so for PSU inefficiencies and expansion. Then add your monitor and other
external devices.
--


Richard Hopkins
Cardiff, Wales, United Kingdom
(replace nospam with pipex in reply address)

The UK's leading technology reseller www.dabs.com