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Power consumption while sleeping

Message #1 - Posted 2008/01/30 - Chris

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping? I leave it on all the time and most of the time it's sleeping, but I don't know how much power I'm saving. Is it down to 5 watts or less? How about when it's off? How about when it's up and running? It's totally stock, except the memory has been upgraded to 2 256mb ram chips and the kb (macally) and mouse (Apple pro mouse) are not stock I can't seem to find the information on the apple website.

Thanks,

Chris

Message #2 - Posted 2008/01/30 - Jolly Roger

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping?

No, but it's easy enough for you to find out:

<http://www.thinkgeek.com/homeoffice/gear/7657/>

Note: Please send all responses to the relevant news group. If you must contact me through e-mail, let me know when you send email to this address so that your email doesn't get eaten by my SPAM filter.

JR

Message #3 - Posted 2008/01/30 - Gregory Weston

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping? I leave it on all the time and most of the time it's sleeping, but I don't know how much power I'm saving. Is it down to 5 watts or less? How about when it's off? How about when it's up and running? It's totally stock, except the memory has been upgraded to 2 256mb ram chips and the kb (macally) and mouse (Apple pro mouse) are not stock I can't seem to find the information on the apple website.

Apparently is 6W while sleeping.

<http://tingilinde.typepad.com/starstuff/2004/03/pc_energy_use.html>

I think Apple documents as high as 170 under load, although that might have been for a different model.

Message #4 - Posted 2008/01/30 - Lewis

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping?

No.

I leave it on all the time and most
of the time it's sleeping, but I don't know how much power I'm saving.

You'd need a meter. be sure and comapre OFF and sleep. Chances are there is little, if any difference. OFF might even draw more power (I know it did on some A/V thingy I had).

(Apple pro mouse) are not stock I can't seem to find the information on the apple website.

No, and there's no way it could be there, either.

Bart: This is the worst day of my life.
Homer: This is the worst day of your life SO FAR.

Message #5 - Posted 2008/01/30 - Lewis

Previously, Gregory Weston wrote:

Apparently is 6W while sleeping.

These numbers vary quite a bit for difference users/installations/power companies/phases of the moon.

Also, none of them listed the watt draw when OFF.

Bart: This is the worst day of my life.
Homer: This is the worst day of your life SO FAR.

Message #6 - Posted 2008/01/30 - Clark Martin

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping? I leave it on all the time and most of the time it's sleeping, but I don't know how much power I'm saving. Is it down to 5 watts or less? How about when it's off? How about when it's up and running? It's totally stock, except the memory has been upgraded to 2 256mb ram chips and the kb (macally) and mouse (Apple pro mouse) are not stock I can't seem to find the information on the apple website.

I've measured this on a number of models but not an eMac.

For a plain ole G3 iMac the numbers are:

Peak 119 W
Nominal 93 W
Standby 37 W
Off 2 W

Maybe Friday I'll try checking some newer models, including eMacs.

Clark Martin
Redwood City, CA, USA Macintosh / Internet Consulting

"I'm a designated driver on the Information Super Highway"

Message #7 - Posted 2008/01/31 - David Empson

Clark Martin wrote:

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping? I leave it on all the time and most of the time it's sleeping, but I don't know how much power I'm saving. Is it down to 5 watts or less? How about when it's off? How about when it's up and running? It's totally stock, except the memory has been upgraded to 2 256mb ram chips and the kb (macally) and mouse (Apple pro mouse) are not stock I can't seem to find the information on the apple website.

I've measured this on a number of models but not an eMac.

For a plain ole G3 iMac the numbers are:

Peak 119 W
Nominal 93 W
Standby 37 W
Off 2 W

Maybe Friday I'll try checking some newer models, including eMacs.

It would be good to see data for some more recent models. I don't think that Standby figure is representative of later models, which have much more efficient deep sleep modes than the early iMac G3.

David Empson
dempson@actrix.gen.nz

Message #8 - Posted 2008/02/03 - Clark Martin

Previously, David Empson wrote:

Clark Martin wrote:

Previously, Chris wrote:

Can anyone tell me how much power my first generation emac (the 700mhz cdrom model) uses when sleeping? I leave it on all the time and most of the time it's sleeping, but I don't know how much power I'm saving. Is it down to 5 watts or less? How about when it's off? How about when it's up and running? It's totally stock, except the memory has been upgraded to 2 256mb ram chips and the kb (macally) and mouse (Apple pro mouse) are not stock I can't seem to find the information on the apple website.

I've measured this on a number of models but not an eMac.

For a plain ole G3 iMac the numbers are:

Peak 119 W
Nominal 93 W
Standby 37 W
Off 2 W

Maybe Friday I'll try checking some newer models, including eMacs.

It would be good to see data for some more recent models. I don't think that Standby figure is representative of later models, which have much more efficient deep sleep modes than the early iMac G3.

You are quite correct. I checked an eMac and an intel iMac. I'm going from memory but in sleep the eMac draws about 8 W and the intel iMac draws 2W (same power draw as when it's off).

Clark Martin
Redwood City, CA, USA Macintosh / Internet Consulting

"I'm a designated driver on the Information Super Highway"

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