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Old 11th July, 2005, 09:58 AM
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Power consumption of a PC

How much would it cost per day to run an Athlon 64 under full load?

How much would it cost per day to run an Pentium II under full load?

No screens. Im just curious about how much its going to cost to fold 24/7.
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Old 11th July, 2005, 12:11 PM
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The A64 just running folding you're looking at 130-180W depending on other components. Then depending on the psu you're looking at 160-190W of actual power consumption for the bottom range of the previous figure and 225-270W for the top end of it.

Then you take those figures, multupliy by 24, divide by 1000 and multiply by what your utility company charges per KWatt hour and you have your cost.

For example a Winchester system with a single hard drive and mid range graphics card and an enermax psu would probably consume 3.8-4Kwatt a day

It depends a lot on the specs of the system.

What core PII is it as there is a big differance between a Klamoth and Deschutes core in power draw
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Old 11th July, 2005, 12:59 PM
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Quote:
Originally Posted by GrahamGarside
The A64 just running folding you're looking at 130-180W depending on other components. Then depending on the psu you're looking at 160-190W of actual power consumption for the bottom range of the previous figure and 225-270W for the top end of it.
Im not sure im following you. Its a 350watt PSU. With a mid range graphics card, 1 dvd burner, 1 hard drive (IDE) 3 case fans, and a CPU fan. CPU is a NewCastle.

Quote:
Originally Posted by GrahamGarside
Then you take those figures, multupliy by 24, divide by 1000 and multiply by what your utility company charges per KWatt hour and you have your cost.
I get this part.

Its a Dual Pentium II Deschutes core.
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Old 11th July, 2005, 01:39 PM
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For a newcastle I'd estimate around 150W. Any idea what brand of psu it is?

I'm not possitive on the PII systems power usage though, a deschutes uses about 25W so I'd guess a dual system would use about 80W, and it's unlikely to have a top end psu so probably about 120-140W
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Old 11th July, 2005, 01:54 PM
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The A64 has an Enlight 350watt. I bought it because it has a single 120mm and is silent.

The PII has a Wintech 400watt PSU.

------------------------------------------------------------------------

My parents electricity company charge 15c on-peak, and 21c off-peak.

So I take the wattage about 150watt * 24 / 1000 = 3.6. This is how much power the computer uses per hour isnt it?

Then 3.6 * .15 = .54 this is how much it costs to run the computer for 1 hour?

.54 * 24 = 12.96 this is how much it costs per 1 day.

12.96 * 90 = 1166.40 this is how much per quater? Thats a lot money. All prices are shown in dollars.
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Old 11th July, 2005, 02:15 PM
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no thats the amount the system usesper day, power draw*hours/1000 = the number of kilowatt hours it uses then you multiply this by the 15/21C and thats the cost per day

So take your A64 system, at 150W that psu is probably about 70% efficient, so thats about 220W so for the cost it would be:

220*24/1000*0.15 = 0.792 so about 80c a day and about $70 a quarter
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Old 11th July, 2005, 02:37 PM
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Thats not too bad I suppose. Thanks for that, mate.
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Old 11th July, 2005, 02:47 PM
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Athlon XP-M (8RDA6+Pro) with 17" TFT, rechargable mouse, speakers, three SCSI drives, DVD-writer, CD-writer, 1GB RAM, ZIP drive, tape drive, inkjet printer and phone charger takes 230W when running flat out. This was measured at the socket.
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Old 11th July, 2005, 02:50 PM
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Oh, also see this link, as it might well help you see what's being used.
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Old 11th July, 2005, 02:54 PM
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Thanks Aedan. I never thought of searching hothardware. 230watt is more than i'll use, on either computer.
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Old 11th July, 2005, 03:43 PM
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Thanks for the link A.
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Old 12th July, 2005, 01:00 PM
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A PSU estimator is here and more o/c stuff.
For serious o/c I suggest qualified PSUs (Enermax, Ocz, Fortron, Antec etc) > 400 Watts.

Info for CPUs can be found (seek in links) Benchtest.
Maybe this site is not accesible all time anyway...
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Old 12th July, 2005, 01:42 PM
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This wasn't so much an estimation of the PSU requirement, but what the running costs of the machine would be. That's a slightly different calcuation to sizing a PSU, given that the PSU won't be 80% loaded.
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