Power consumption...

mrbios

mrbios

mrbios

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Does anyone know what an estimated power usage for this computer would be:

1 mechanical hdd
socket 775 motherboard without solid caps (pretty old basically)
pentium D 920 (95w)
2GB DDR2

compared to this:
1 Solid state hard drive
socket 1155 motherboard - microatx
core i3 35w edition when released
4GB DDR3

I'm trying to work out an estimated power draw from these two specs of machines, and then work out an estimated energy saving when replacing 92 of the old for the new.

any help please?

EDIT:
I've found information that a conventional hdd could use around 33w, a P965 based motherboard around 40w and DDR2 and 3 = barely any power at all. Does that sound about right?
Also would i be right in thinking SSD = close to 1w? So i just need to know the power draw of a skt1155 motherboard compared to older boards if that's all good?
 
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33W for a HDD :eek: Maybe from a 15K screamer.

From the manufacturers websites:

WD Green 2TB (5200 RPM):
Power Dissipation
Read/Write 6.00 Watts
Idle 3.70 Watts
Standby 0.80 Watts
Sleep 0.80 Watts


WD Black 2TB (7200 RPM):
Power Dissipation
Read/Write 10.70 Watts
Idle 8.20 Watts
Standby 1.30 Watts
Sleep 1.30 Watts

OCZ Vertex 2:
Low Power Consumption: 2W in operation, .5W in standby
 
As mike said buy a plugin moniter, they can be had for less than at tenner, unless you need to know before replacing the machines
 
Thread bump, was going to make my own but might as well use this one. Anyone with a power meter able to tell me the consumption in sleep/stand by mode and hibernate? (along with the specs of their system).
 
Hibernate will be zero (well, not quite if the plug is still switched on - the same as turning it off anyway) as it essentially involves writing RAM to disk and turning the machine off.
 
I'm gonna add guestimates to your list:

1 mechanical hdd <- Around 7w or less, this depends on number of platters and rotational speed
socket 775 motherboard without solid caps (pretty old basically) <- Between 20W and 40W, more if you're gonna crank up the FSB
pentium D 920 (95w) <- Over 100W if you're going to OC
2GB DDR2 <- 5-15W

1 Solid state hard drive <-less than 5W
socket 1155 motherboard <- microatx <- around 10w-30w I'm guessing
core i3 35w edition when released <- 35W :p
4GB DDR3 <- 10-20W


EDIT:
mrbios said:
I've found information that a conventional hdd could use around 33w, a P965 based motherboard around 40w and DDR2 and 3 = barely any power at all. Does that sound about right?
Also would i be right in thinking SSD = close to 1w? So i just need to know the power draw of a skt1155 motherboard compared to older boards if that's all good?
Click to expand...

HDD is way off, the rest sounds about right.
 
As there are 92 of these PCs I’m going to assume they are in an environment where they aren’t going to on for much more than 10 hours of each working day.

If you’re really optimistic and claim a 100W power saving that’s only going to equate to a daily saving of about £0.10/PC (£25.00/year/PC).
 
Redmint said:
Thread bump, was going to make my own but might as well use this one. Anyone with a power meter able to tell me the consumption in sleep/stand by mode and hibernate? (along with the specs of their system).
Click to expand...

Suspend to RAM -- 7W

Shut Down -- 5W

Never tried hibernate to Hard Disk.

i7 920 3.6/EX58/HD4890/OCZ SXS 600W
 
Found some figures scribbled on the back of an envelope and I don't like ...

[email protected]
6 gig of Ballistix
3 mechanical drives
1 ssd
GTX460
8400GS
DVD Burner
Fans

Sleep : 5-6W
Idle after waiting for the gpus to throttle down) : 140W
Furmark gpu @ stock : 320W
Furmark gpu @ overclock : 350W
Furmark + Prime 95 ie full load overclocked : 390W

Blooming heck - so glad I don't fold anymore and I used to have more cards than this at full load 24/7 !
 
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Tealc said:
Suspend to RAM -- 7W
Shut Down -- 5W
Click to expand...

Cheers, kind of what I was hoping for, considering it's only 2W difference between sleep and shut down (500h or almost 21 days of full sleep for 1 unit of electricity!) it makes me less worried about using shut down/hibernate every time.
 
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