Why You Should Use Sleep Mode
Posted 12 August 2009 - 01:54 PM
Posted 12 August 2009 - 03:49 PM
Hibernation Mode: Yes !
Slow to boot-up in Windows Vista SP2, but less chance of Sleep's Data Corruption and no chance of equipment damaging power surges or brown-outs. I also have surge protectors on all my favorite electronic toys and a Southern Company carbon-block Surge Varistor between my power meter and my home's electric wiring. I replace the wall-socket surge suppressors every year or two just to be on the safe side.
Posted 12 August 2009 - 05:21 PM
Posted 12 August 2009 - 05:22 PM
Hibernate's OK, but it can be S-L-O-W if you have a lot of RAM and a not-so-speedy hard drive.
Sleep is OK, too, but it DOES require and consume power the whole time it's 'asleep'. Your computer SHOULD be on a UPS if you use sleep mode. It should be on a UPS all the time, anyway. And if the UPS is going to stop, it should send a wake/shutdown to the PC.
A UPS WILL consume power all the time keeping the batteries up, and monitoring line conditions, too. Mine eats about 35 watts day & night because not only is it a UPS, but a voltage regulator (i.e. it has a fat transformer in it to 'fix' 90 volt or less brownout conditions indefinitely - but that's not very efficient).
A notebook benefits from 'sleep', but once again it's drawing battery power the whole time. Leave it 'sleeping' overnight, and you might carve half an hour off the battery run time if it isn't plugged in. If you forget you slept it for more than a few days, your battery could be DEAD. If it is plugged in, it will be eating AC power to keep the RAM and batteries up, too. All of those deep cycles (discharge/recharge) add up to shortened battery life. If it can hibernate faster than it can shut down, hibernate, instead.
Another minor problem with 'Sleep' is it prolongs your login session indefinitely. Every little thing that is always running, made by all kinds of vendors (including the OS its self) is leaking (RAM, handles, resources of various kinds) while memory is fragmented, too. You need a nice reboot now and then to clean that mess up.
Posted 12 August 2009 - 08:45 PM
That means that you are paying an extra $7 a month (11.59 cents x 60 killowatt-hours) if you shut your computer off rather than use stand-by.
Posted 12 August 2009 - 09:48 PM
30 days x 1 minute = 30 minutes = 0.5 hours
200 watts * 0.5 hours = 100 watt hours = 0.1 Kilowatt hour
So take whatever you're charged per Kilowatt hour (I'm apparently charged $0.07 - I looked it up) and divide that by 10.
So it costs a fraction of a penny to boot a typical desktop machine 30 times.
Now compare that to eating say 10 watts 16 hours (assuming 8 hours of use) 30 days = 4800 (4.8 KW/Hours) or about $0.34.
Give or take.
So the standby idea is just a convenience, and not a net savings in energy.
Of course, my TWO UPS units eat a LOT more than either. I could run a small fridge for the power they consume.
My Ubuntu notebook boots in 30 seconds, BTW.
Posted 12 August 2009 - 10:37 PM
Posted 16 August 2009 - 04:26 AM
Posted 17 August 2009 - 06:05 AM
Posted 22 September 2009 - 04:25 PM
Sure, it doesn't use a large amount of power. I'll accept your estimate of 1-10 watts, which wouldn't add much to an individual's electric bill. You're just talking about one person, though. If millions of computers were put into sleep mode instead of turning off the power, the load on the nation's electric power would increase significantly, adding to environmental pollution and putting additional strain on the grid in areas of the country that are already reaching their maximum capacity.
Personally, after shutting down at the end of the day, I hit the off switch on my power strip. How much power am I using when the computer is off? Zero. When I flip the power strip on, all the accessories are powered up and pressing the computers power button starts the boot. Yeah, I have to wait about a minute for Windows to be ready, but is that really such a long time? How impatient do we have to be? How much do we have to harm the planet to salve an unreasonable neurosis?
To be completely honest, my APC UPS never gets turned off, so I'm sure it's drawing a small amount of power to keep the battery charged even when the power strip isn't drawing any.
This post has been edited by pizzaman: 22 September 2009 - 04:45 PM
Posted 22 September 2009 - 05:52 PM
You've got a serious problem, either with your hardware or with something in your configuration. Maybe even a corrupt registry or too many start up processes. It's not an XP problem. My machine has been through several motherboard changes, but XP has never been reinstalled. I boot in about 1 minute, including the post.
Posted 24 September 2009 - 04:24 PM
I Cannot believe Jason Cross would even suggest doing his article and he himself proved it.
Rounding out Jason's 1.92 kwh to just an even 1. Stop and think just a second.... Multiply that times a million PC's, two million PC's?
2,000,000 kwh... Wow Jason, you sure are saving the U.S. a lot of energy.
Ok, so I'm being sarcastic, but in todays day and energy conscience age? How about just taking the extra time to boot your computer and
save the U.S.energy? (not to mention the polution it takes to make those kwh's)
Posted 05 November 2009 - 12:26 PM
- My primary system is a laptop, and I'm always on the go with it.
- When I need the system on, I need it on right-the-heck-now.
- The power drain is minimal, and unless I unplug the power "brick" from the wall it draws some current anyway, so why not put that current to use.
My wife's computer, however, is a desktop, and it's set to use hibernation instead of sleep mode. Once hibernated, the power drain is in single-digit milliamps, plus it resumes right where she left off rather than having to reload individual applications.
I only use a full power-off on either system when I need to do work on the innards of the machines. On the laptop, I use hibernation if I'm out and about and need to swap batteries and don't have access to a wall outlet to plug the power supply in, even briefly, to keep things "alive" while swapping out the battery pack.
Yes, I'm environmentally conscious, but everything in moderation. I balance that against my time, which would be wasted if I had to cold-start every time.