Home | Community | Message Board


This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Myyco.com Shop: Golden Teacher Liquid Culture For Sale

Jump to first unread post Pages: 1
OfflineRandolph_Carter
НơĻ?ĢΉō

Registered: 06/13/00
Posts: 29,281
Loc: Shroomery B-list.
Last seen: 13 years, 10 months
How do you determine how many watts your computer is actually using?
    #4696935 - 09/22/05 07:09 PM (18 years, 6 months ago)

See title. I'd imagine it'd be in BIOS, or that there'd be a program to check.


--------------------
"..all those molecules thrashing their kinky little tails, hot for destiny and the street."  Gibson


Nuke baby seals for Jesus!

(This has been a +1 production.)

Extras: Filter Print Post Top
InvisiblePinback
Stranger
 User Gallery

Registered: 07/20/02
Posts: 836
Loc: Europe
Re: How do you determine how many watts your computer is actually using? [Re: Randolph_Carter]
    #4699393 - 09/23/05 06:20 AM (18 years, 6 months ago)

I don't think it can be done in software, at least not commonly. You can always get something like this:

Extras: Filter Print Post Top
OfflineSeussA
Error: divide byzero

Folding@home Statistics
Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 1 month, 18 days
Re: How do you determine how many watts your computer is actually using? [Re: Pinback]
    #4699438 - 09/23/05 07:16 AM (18 years, 6 months ago)

> I'd imagine it'd be in BIOS, or that there'd be a program to check.

Nope. You will have to use something external to measure how much you consume. I am unaware of any computer power supply that has a built in watt hour meter. The easiest would be to measure the current going through the power cord and do the math to convert to watts at your given voltage. Don't forget you are dealing with AC, not DC power.


--------------------
Just another spore in the wind.

Extras: Filter Print Post Top
InvisibletrendalM
J♠
Male User Gallery

Registered: 04/17/01
Posts: 20,815
Loc: Ontario, Canada Flag
Re: How do you determine how many watts your computer is actually using? [Re: Randolph_Carter]
    #4699471 - 09/23/05 07:30 AM (18 years, 6 months ago)

There's two different wattages I can think of that you might want to measure! Which one are you looking for?

-there's the TOTAL watts used by your WHOLE computer, as measured between the wall outlet and your PC

-there's the number of watts being used by your INTERNAL components, how many watts is being drawn fromy our power supply


Measure the voltage at your wall outlet, then with the computer running measure how many amps it is drawing from the line. Multiplying the two together will give you the number of watts it is CURRENTLY using (note this can vary quite widely between an Idle state and 100% CPU load).

Now look on your computer's power supply, at the ratings (it should list the max watts available on each voltage line). Add up all the MAX wattages and you'll get the max watts that the PSU can supply (not the CURRENT watts).

Next you need to know the power supply's efficiency. There should be an amps rating on the supply (if there are two, pick the one listed beside 115v, not 230v). Multiply that by the voltage listed (115) to get the MAX watts the supply will draw from the wall. Divide the max internal watts you got in the last paragraph by this number to give you your efficiency - 800/400 is 50% efficiency.

Now, finally, to get the total watts being drawin internally (from the power supply) you take the watts you measured at the wall and multiply it by the efficiency value you got - if it's drawing 550 watts from the wall, with 50% efficiency, it's supplying about 275 watts internally.


--------------------
Once, men turned their thinking over to machines in the hope that this would set them free.
But that only permitted other men with machines to enslave them.

Extras: Filter Print Post Top
Jump to top Pages: 1

Myyco.com Shop: Golden Teacher Liquid Culture For Sale


Similar ThreadsPosterViewsRepliesLast post
* Using ATX power supply outside a computer supercollider 2,013 6 02/25/06 01:05 AM
by supercollider
* Awesomely Exciting Power Supply Problem TurdFerguson 699 5 04/17/06 09:15 PM
by pshawny
* U.S. Won't Cede Control of Net Computers Mycomancer 798 2 07/02/05 07:26 PM
by phi1618
* If your ever having problems with your computer that you can't fix... HagbardCeline 881 6 10/27/05 11:07 AM
by HagbardCeline
* Low-voltage energy storage caps? Any uses? trendalM 755 3 11/04/05 07:06 AM
by Seuss
* Teaming up Linux with Windows ; making an external harddrive ; hooking up 2 computers Asante 866 1 04/15/06 11:47 AM
by Vvellum
* Voltage and Amperes TODAY 986 5 08/07/06 04:40 PM
by TODAY
* Computer shutting down randomly Silversoul 1,541 19 07/17/05 01:51 AM
by nugsarenice

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: trendal, automan, Northerner
2,571 topic views. 0 members, 1 guests and 6 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.024 seconds spending 0.007 seconds on 14 queries.