Cost of leaving the Home PC on

bennos

New Member
My config:
400w power supply. (3 fans total in the case)
P4 3.0GHz 1G RAM PC at home.
Radeon 9800 Pro graphics card
2 x HHDs (80G & 200G).

I have always wondered what it costs (approx) to leave the home PC on most of the evening and nights. Usually, on the weekends the PC would be on 12 hours Sat and again Sun.

Anyone know roughly?
 
In the UK each unit of electricity (kWH) costs abuot 9p, so that would be about 3.6p per hour, times 24 hors/ day = 86.4p for a whole day, the *5 = 432p (£4.32) for the weekdays, then 12 hours for each week end =24 in total, so 432 + 86.4 = 518.4p per week, so £5.19 or 9.03$ to leave your computer on for a week (very) aproximately.
So physics lessons do actually teach you something useful:P
btw: i'm not sure if that is actually right,m i just did some calculations of the top of my head and got a number which sounds about correct
 
if you put your PC on sleep mode, this will not be an issue any longer. sleep mode takes a snap shot of your current state and save it in memory and when your pc comes out of sleep mode, it's exactly how you left it. it doesn't use electricity at all during sleep mode and 10 times faster than booting up or shutting down the computer.

Attorney Anthony Cambece of Cambece Law Office at Peabody, MA
 
I never noticed much of a change on the electric bill from leaving my PC on or in sleep mode/off.
 
lee101 said:
In the UK each unit of electricity (kWH) costs abuot 9p, so that would be about 3.6p per hour, times 24 hors/ day = 86.4p for a whole day, the *5 = 432p (£4.32) for the weekdays, then 12 hours for each week end =24 in total, so 432 + 86.4 = 518.4p per week, so £5.19 or 9.03$ to leave your computer on for a week (very) aproximately.

you forgot to meantio that this is only when the PSU is graining the full 400W drains ;)
 
jcambece said:
if you put your PC on sleep mode, this will not be an issue any longer. sleep mode takes a snap shot of your current state and save it in memory and when your pc comes out of sleep mode, it's exactly how you left it. it doesn't use electricity at all during sleep mode and 10 times faster than booting up or shutting down the computer.

Attorney Anthony Cambece of Cambece Law Office at Peabody, MA


Sleep mode does use electricity. Current sleep mood suspends to ram and shuts down the processor. The only electricity used is to refresh the ram.

Hibernation suspends the ram to disk, so the whole PC is physically shut down and resuming just reflashes the RAM back to it's previous state.
 
In Australia, one of the major electricity provide has a cost average for home appliances and electrical equipment.

The estimate for the home PC is .0394¢/hr.
 
There is 3 computers in this house 2 of which are always on and it hasn't caused our bill to get significantly larger.
 
Current sleep mood suspends to ram and shuts down the processor
Are you sure the CPU is shutdown? Cuz if it's shutdown then there would have to be a POST operation upon resume (not to mention we could just uninstall the CPU while it's in suspend which im pretty damn sure you cant do :P)
 
Back
Top