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Thread: Real power draw of a PC, post your results.

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    Lightbulb Real power draw of a PC, post your results.

    Using a Plug-in Power & Energy Monitor or similar device, lets see your results.

    I used this: http://www.maplin.co.uk/Module.aspx?ModuleNo=38343&doy=27m6D
    _____________________________________________________________________
    Gigabyte MA790FXT-UD5P
    AMD Phenom II X4 955 Black Edition clocked at 3.2GHz (1.325v Stock Volts)
    BFG GeForce GTX 295 1792MB (Stock Clock)
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    Creative Sound Blaster X-Fi Titanium - Fatal1ty Champion Series
    3 x YATE LOON 120mm Case Fan - D12SL-12
    Ambit Broadband Modem
    40°C idle = 171W

    53°C load = 270W (Using LinX)

    48°C load = 298W (Playing Test Drive Unlimited)

    49°C load = 365W to 375W (Using Street Fighter IV Benchmark)

    50°C load = 360W to 375W (Using Crysis Benchmark)

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gigabyte MA790FXT-UD5P
    AMD Phenom II X4 955 Black Edition clocked at 3.8GHz (1.450v Volts)
    BFG GeForce GTX 295 1792MB (Stock Clock)
    OCZ 2x2GB PC3-1333C7 PlatinumWD VelociRaptor 300GB
    Creative Sound Blaster X-Fi Titanium - Fatal1ty Champion Series
    3 x YATE LOON 120mm Case Fan - D12SL-12
    Ambit Broadband Modem
    45°C idle = 205W

    65°C load = 360W (Using LinX)

    58°C load = 350W (Playing Test Drive Unlimited)

    56°C load = 397W to 407W (Using Street Fighter IV Benchmark)

    57°C load = 339W to 412W (Using Crysis Benchmark)


    Seasonic M12D SS-850W Mod PSU
    192W / 221W = 87.9% Efficiency (Cold Load Result)
    355W / 404W = 87.9% Efficiency (Hot Load Result)
    523W / 599W = 87.3% Efficiency (Hot Load Result)

    http://www.jonnyguru.com/modules.php...tory2&reid=127
    Last edited by Nelly.; 25-08-2009 at 11:57 PM.

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    Re: Real power draw of a PC, post your results.

    G33 MATX M.B. 2x 2GB 1066 DDR2

    INTEL E7200 3.5ghz @1.4v

    GTX260 192sp @670mhz

    2x HDD 1x ODD 1x FAN

    110W IDLE
    315W LOAD

    I tested load by running Furmark at the same time as Prime95 and decompressing a big file from one HDD to another.

    I use a 78% efficient PSU, so my components would use 245W at LOAD with a 100% efficient power source.
    Last edited by rushholme; 26-08-2009 at 12:40 AM.

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    Senior Member oolon's Avatar
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    Re: Real power draw of a PC, post your results.

    Standby 3W
    Boot 48W
    Idle 43W
    Load 50W

    Atom 330/Nvida Ion Chipset
    2x2GB DDR2 memory
    1 fan 60mm
    2x WDC WD3200BJKT
    1x Sangoma Technologies Corp. A200/Remora FXO/FXS Analog AFT card

    Running Linux (Centos 5.3)
    Last edited by oolon; 26-08-2009 at 01:47 PM. Reason: More acturate power readings.

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    Re: Real power draw of a PC, post your results.

    35W is about average for a laptop at load.

    Pretty amazing for a desktop!

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    Re: Real power draw of a PC, post your results.

    Would you gents mind adding it to: http://forums.hexus.net/hexus-hardwa...-readings.html

    Would be wicked to have a single detailed thread on this. It's something which interests me greatly
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

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    Re: Real power draw of a PC, post your results.

    Enermax 425W Pro82+
    Intel E8400 @ 3.91ghz - 1.35v
    2x2gb @ 867mhz 4-4-4-12 - 2.0v
    Asus P5KC
    ATI 4770 (250/400 underclocked, 820/1000 overclocked)
    2xHDD
    7x120mm fans (including cpu, all controlled by speedfan)

    I manually apply the underclock/overclock profiles for my graphics card, due to old games such as quake live running at well over 125fps underclocked. In the list below the gfx card is underclocked unless stated.

    105w - idle
    145w - furmark
    160w - prime95
    175w - linX
    195w - furmark (gfx overclocked)
    230w - furmark & prime95 (gfx overclocked)

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    Re: Real power draw of a PC, post your results.

    Quote Originally Posted by Nelly. View Post
    Using a Plug-in Power & Energy Monitor or similar device, lets see your results.

    I used this: http://www.maplin.co.uk/Module.aspx?ModuleNo=38343&doy=27m6D
    I am so going to have to get one of those, and £12.99 its a bargain! I will update my figures when i get a better way to measure them.

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    Re: Real power draw of a PC, post your results.

    I find it funny when people are worried that a 500w PSU wont be enough to power their system.

    I know there is a need for a 1000w PSU for all the millions upon millions of people with uber components all overclocked and running 10 HDDs with 20 fans etc...

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    Re: Real power draw of a PC, post your results.

    I just went to maplins and bought one of these meters (actually 2 different ones), they are end of line which is why they are cheap at £12.99. so if you want one of them I suggest you go quickly. They to have another model for £19.99. As it is hard to pick between the two I thought I would list the advantages/disadvantages of each. Its very difficult to pick between the two, even having both advantages and disadvantages, I can't say which is better. The green box one is more actuate and price calculation, but the blue one has VA and Power Factor. Which for the more expert user is very useful.

    L61AQ ("Maplin Branded" - Blue box)
    £12.99
    Nearest watt 1W
    Does Power Factor
    Does Volt Amps

    Current .01 Amp
    Volts .1 V
    Frequency .1Hz

    KWh 0.01 (Is an elapse function not instantaneous)
    Elapse timer Hours:Minutes
    Does not calculate cost.
    No Hi/Low W reading


    N67FU (Nikkai Power - Green Box)
    £19.99
    frequency 1Hz

    Watt 0.1W
    Does NOT do Power Factor
    Does NOT do Volt Amps

    Current .001 A
    Volts 1V
    k/Wh 0.001 (Is an elapse function not instantaneous)
    Cost £0.01
    Elapse timer Minute:Second
    Hi/Low watts
    Last edited by oolon; 26-08-2009 at 02:30 PM.

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    Re: Real power draw of a PC, post your results.

    Gigabyte MA790FXT-UD5P
    AMD Phenom II X4 955 Black Edition clocked at 3.2GHz (1.325v Stock Volts)
    Sapphire ATI Radeon HD 4890 Vapor-X 2048MB(Stock Clock)
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    Creative Sound Blaster X-Fi Titanium - Fatal1ty Champion Series
    3 x YATE LOON 120mm Case Fan - D12SL-12
    Ambit Broadband Modem
    40°C idle = 192W

    53°C load = 280W (Using LinX)

    48°C load = 275-285W (Playing Test Drive Unlimited)

    49°C load = 304W to 311W (Using Street Fighter IV Benchmark)

    50°C load = 306W to 315W (Using Crysis Benchmark)

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gigabyte MA790FXT-UD5P
    AMD Phenom II X4 955 Black Edition clocked at 3.8GHz (1.450v Volts)
    Sapphire ATI Radeon HD 4890 Vapor-X 2048MB (Stock Clock)
    OCZ 2x2GB PC3-1333C7 PlatinumWD VelociRaptor 300GB
    Creative Sound Blaster X-Fi Titanium - Fatal1ty Champion Series
    3 x YATE LOON 120mm Case Fan - D12SL-12
    Ambit Broadband Modem
    45°C idle = 230W

    65°C load = 265W (Using LinX)

    58°C load = 335W to 340W(Playing Test Drive Unlimited)

    56°C load = 347W to 357W (Using Street Fighter IV Benchmark)

    57°C load = 350W to 360W (Using Crysis Benchmark)


    Conclusion

    (-) Sapphire ATI Radeon HD 4890 Vapor-X 2048MB uses 20W more at idle than BFG GeForce GTX 295 1792MB

    (+) Sapphire ATI Radeon HD 4890 Vapor-X 2048MB uses 50W LESS on full load than BFG GeForce GTX 295 1792MB

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    Re: Real power draw of a PC, post your results.

    Using system in my side bar:

    Idle @ Desktop: 150-200W
    3D Mark 06: 250-300W
    FULL Load OCCT PSU test: 430-440W

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    Re: Real power draw of a PC, post your results.

    IMPORTANT READ THIS: CLICK HERE
    Quote Originally Posted by jonnyGURU
    On the consumer level, there really isn't any options to the Kill-A-Watt and other devices like it. And I can't see somone paying hundreds of dollars for equipment just to measure power consumption unless the review power supplies or do something for a living that would require that.

    Some people say adjust for efficiency (80%) and then consider keeping the load within 50 to 75% of whatever PSU's capability. So for example, 300W from the wall, x 80%, 320 WDC... 500W to 550W PSU. But to take into consideration inaccuracy of the Kill-A-Watt and immeasurable transients, I would just suggest double whatever the Kill-A-Watt is reading as a PSU recommendation. So 300W from the wall, 600W PSU. Just to be "safe". You're still not suggesting 1600W PSU's for people with 8800 GT cards (one side of the spectrum) but your not telling people to buy 380W PSU's that will die in a year's time due to stress (other side of the spectrum.)
    Basically the Kill-A-Watt meters do not give an accurate rating for efficiency, read the whole thread for details.

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    Re: Real power draw of a PC, post your results.

    Quote Originally Posted by oolon View Post
    Standby 3W
    Boot 48W
    Idle 43W
    Load 50W

    Atom 330/Nvida Ion Chipset
    2x2GB DDR2 memory
    1 fan 60mm
    2x WDC WD3200BJKT
    1x Sangoma Technologies Corp. A200/Remora FXO/FXS Analog AFT card

    Running Linux (Centos 5.3)
    Power hungry man.. mine is on LOAD at 35W = also an Ion 330, Asrock system

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    Senior Member oolon's Avatar
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    Re: Real power draw of a PC, post your results.

    Quote Originally Posted by Methanoid View Post
    Power hungry man.. mine is on LOAD at 35W = also an Ion 330, Asrock system
    I am guess, my Sangoma card and additional hard drive (7200rpm) are making my load so massive! Whats the spec of your Asrock system? Well at least the power draw is less than my monitor Dell 2408WFP measured at 68W.

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    Re: Real power draw of a PC, post your results.

    PSUs can be a big influence on efficiency at low power draw. If you're using less than 20% of the PSU's rated power then you could get a big drop off in efficiency.
    I had an under-volted and under-clocked Athlon X2 running at 2Ghz on a 740G motherboard with a 160Gig HDD running at 39W Idle/55Wish load on a 250W PSU and the power draw went up about 5-10W at idle when I swapped in a 350W power supply.

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    Senior Member watercooled's Avatar
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    Re: Real power draw of a PC, post your results.

    Yeah, and JonnyGuru now performs a low-load test for this reason. Look at this page for an example: http://www.jonnyguru.com/modules.php...tory2&reid=163

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