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How much power does a computer use in sleep mode? - Page 2

post #11 of 19
Quote:
Originally Posted by UsernameGoesHer View Post

And hippie websites say computers use 40 watt hours if you leave them in sleep while you sleep. rolleyes.gif

all my computers sleep at 1-2w max. idles depend on the system and GPU used which can range from 30w-150w

40w hours while you sleep is kinda BS unless you dont wake up
post #12 of 19
Quote:
Originally Posted by akromatic View Post

40w hours while you sleep is kinda BS unless you dont wake up

    40WH is only 5 watts for 8 hours.  Seems very reasonable to me. smile.gif
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post #13 of 19
4W at sleep S3 measured with Kill-a-Watt. 16GB of RAM.
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post #14 of 19
if you have no pump few fans and few hdd , not too much , but if you have pumps fans and thing that are hooked to the psu and don't stop during sleep it can be quite high.
i have 2xpumps 4x180mm fans 5x120mm fans , 1xhdd, 2x280x with ulps disable and a 4670k , all this use nearly 200 watts (measured) at idle and maybe less in sleep , but my pump and fans never stop so i guess i still have a good 50-75 watt while in sleep
Edited by Ashuiegi - 5/15/14 at 12:36am
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post #15 of 19
I personally don't use hibernate or sleep mode. I don't allow my disks to turn off either. The only thing I let happen is my monitor go to sleep.

I do wonder how much power I use but it would mean nothing in the end as I do not plan on changing how I do things so... meh.
 
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post #16 of 19
Quote:
Originally Posted by Ashuiegi View Post

if you have no pump few fans and few hdd , not too much , but if you have pumps fans and thing that are hooked to the psu and don't stop during sleep it can be quite high.
i have 2xpumps 4x180mm fans 5x120mm fans , 1xhdd, 2x280x with ulps disable and a 4670k , all this use nearly 200 watts (measured) at idle and maybe less in sleep , but my pump and fans never stop so i guess i still have a good 50-75 watt while in sleep

    That means that your computer is using the very old S1 sleep.  If it used S3 sleep, the PSU and everything connected to it would turn off during sleep.  Check my comments several posts above to see possibilities on fixing the issue.
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post #17 of 19
"G1 Sleeping—The system appears to be off but is actually in one of four Sleep states—up to full hibernation. How quickly the system can return to G0 depends on which of the Sleep states the system has selected. In any of these Sleep states, system context and status are saved such that they can be fully restored. The Sleep states available in the Global G1 state are defined as follows:

  • G1/S1 Halt—A low-latency idle state. The CPU is halted; however, system context and status are fully retained.

  • G1/S2 Halt-Reset—Similar to the S1 sleeping state except that the CPU and cache context is lost, and the CPU is reset upon wakeup.

  • G1/S3 Suspend to RAM (STR)—All system context is lost except memory. The hardware maintains memory context. The CPU is reset and restores some CPU and L2 context upon wakeup.

  • G1/S4 Suspend to Disk (Hibernation)—The system context and status (RAM contents) have been saved to nonvolatile storage—usually the hard disk. This is also known as Hibernation. To return to G0 (Working) state, you must press the power button, and the system will restart, loading the saved context and status from where they were previously saved (normally the hard disk). Returning from G2/S5 to G0 requires a considerable amount of latency (time).
"

... ...

"... When the system is set to suspend in the S3 state, upon entering Sleep (either automatically or manually), the current system context is saved in RAM and all the system hardware (CPU, motherboard, fans, display, and so on) except RAM is powered off. In this mode, the system looks as if it is off and consumes virtually the same amount of power as if it were truly off ..."


http://www.tomshardware.com/reviews/power-supply-protection-calculate-consumption,3066-3.html



While in S3 STR the PSU's three main rails are off. The RAM gets its juice from the +5VSB rail.
Edited by TELVM - 5/15/14 at 5:24am
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post #18 of 19
it s intended , i don't want it to turn off unless i tell him to , it s not an issue for me .
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HAF X - main rig
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E8500 ASUS P5E3 ASUS dcuii TOP GTX 670 OCZ reaper x hpc  
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samsung 500 gb samsung dvd antec H2O 920 windows vista 64b 
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LG 23 passive 3d logitech g15 CORSAIR GS800 haf xb 
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logitech g500 logitech Z 2300 
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post #19 of 19
Since I posted, the surprise led me to find out about and fix the
83-watts in standby mode in XP::

"On PC Power Saving — S1 to S3 standby – dumppo.exe"
http://dennisforbes.ca/index.php/2006/12/23/on-pc-power-saving-s1-to-s3-standby-dumppo-exe/

"S3 Sleep Mode Solved!"
http://www.avsforum.com/t/991517/s3-sleep-mode-solved

and an actual currently valid URL (5/16/14) for yon dumppo.exe:
http://www.mediafire.com/download/dnfyjmzry3z/dumppo.exe


- Lenny -
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