how much eletricity does a compuer consume ?

Raven

New member
hi.

thinking of starting up my old amd32 and use it as a server but wonder how much electricty does it consume ?

amd32 2400+ (will clock it down to lower temp which will lower cpu fan speed)

msi k8ng-l with built in gf4 mx460 and built in realtek alc650 sound.

1 harddrive

1 80mm casefan on 5v and one cpu fan

it has been run of a cheapo 300w psu with only 10a 12v but was very stable.

would it make any difference if i switched ou the cheap 300w and put in a 420w chieftec ?

Good Night

Raven
 
add up the consumtion of everything in your case

HERE should give you a rough estimate. Then divide by 1000 to give you it in KiloWatts then times that by the ammount of hours you will leave it on for (say one). then times this by how much your electricity board charges per KWH = cost to run the pc for one hour
 
i thought power supplies ran a constant wattage? ie a 400w psu always giving out 400w regardless of how much power your computer is using?
 
I was under the impression that power supplies scaled to your voltage needs... Maybe that was just a figment of my imagination though ???
 
llwyd said:
add up the consumtion of everything in your case

HERE should give you a rough estimate.

only shows possible max power consumption, im more interesting in idle/low load consumption.

and the page didnt say if the 201w was with or without the psu.

also sounds high as i remember now having a discussion 4 months ago with a fellow claiming his xp3200+ barton based computer used less than 90w(measured) when in use.

name='FragTek' said:
I was under the impression that power supplies scaled to your voltage needs... Maybe that was just a figment of my imagination though ???
yup power flow into the computer changes with the power draw from the hardware.

looks like i will have to buy a measurement device to get a more specific number.

googled around alittle

amd64 3200

1gb ram

2 harddrives

1 dvdrw

1 tft

300w psu

logitech 4.1

logitech mx1000

1 crt motly on standby.

a fellow claims this draws 0.15kw measured during 30 days.

the cpu had cool'n'quiet enabled.

0.15kw an hour is 3.6kw a day or 1314kw during 1 year or roughly 160€

160€ is alot of money.
 
yes you did, have looked at a couple of similar pages but always end up with a number to high to fit my electricity bill.

my current setup ended up at 358w which is alittle over 3100kwh a year and thats with no monitor added, i have one 38w tft and a 130w crt.

i use up 3240kwh a year.
 
can you not buy one of those mesuring things that you plug into the wall, then plug all you pc equipment into and it tells you how much power it is drawing. i swear i seen one for £9.99 in a electrical shop somewhere.
 
name='nathan' said:
can you not buy one of those mesuring things that you plug into the wall, then plug all you pc equipment into and it tells you how much power it is drawing. i swear i seen one for £9.99 in a electrical shop somewhere.

i can and will but at the moment my priorities is with my moped, spent over 200€ on it the last month and need to spend another 200€ to make it somewhat street legal.

name='XMS' said:
If you like i can get some fugures for a PC + CRT

if its no trouble then please do so :)
 
zachig, doubt that calculator is accurate.

it claims my cpu uses 67w stock and 93w overclocked.

67w is more than a 3800+ x2 uses at stock speed according to a test i have seen.

the problem is that calculator uses theoretical power consumption instead of true power consumption and for my cpu its roughly 30w at stock speed and not 67w.

it also only shows what the computer uses on the secondary side of a psu not the primary side which can differ quite much depending on the efficiency of a psu.

but i intend to buy me a device to measure the consumption as soon as the economy allows and can post the numbers i get here and will be interesting to se how much it draws in windows and in heavy games for example which i believe is quite a big difference.
 
I still think it is one of the best "theoritical" PSU Wattage Calculator, as it gives you a recommendation on which PSU should fit your system while being on the safe side, so IT DOESN'T actually calculates your TOTAL WATTAGE CONSUMPTION, but gives you an estimation of the maximum power that your system might draw on maximum load/performance PLUS some 10-20% safe margin...:D

Anyway, A "Wattage-Meter" device would always be much more accurate!!! :cool:
 
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