This PC=Extreme bills?

FuleFule Join Date: 2009-06-04 Member: 67683Members
in Off-Topic
<div class="IPBDescription">Please help</div>Hello again, Im back with another question ( <img src="style_emoticons/<#EMO_DIR#>/biggrin-fix.gif" style="vertical-align:middle" emoid=":D" border="0" alt="biggrin-fix.gif" /> ).
Will I have enourmous bills with this PC I will be buying:
Amd Phenom II 940 X4 3Ghz
4GB Ram memory
Nvidia GeForce 9800gtx+
Asrock motherboard
500gb HDD 7200rpm (3gb/s)
20x lightscribe DVD-RW
PSU 750W
Case: <a href="http://www.thermaltake.com/product/chassis/midtower/soprano/vb1000bws.asp" target="_blank">http://www.thermaltake.com/product/chassis...o/vb1000bws.asp</a>

So what do you say? For example, if this PC is turned on 360 hours in a month, how much kW would it be?
Please help if you can, I dont wanna pay huge bills...
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Comments

  • SvenpaSvenpa Wait, what? Join Date: 2004-01-03 Member: 25012Members, Constellation
    Go here: <a href="http://www.thermaltake.outervision.com/" target="_blank">http://www.thermaltake.outervision.com/</a>
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    It shows 323W. What now? How can I calculate it to kW?
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  • LonyoLonyo Join Date: 2006-11-02 Member: 58201Members
    <a href="http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3458" target="_blank">http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3458</a>

    Enjoy.
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  • ZaggyZaggy NullPointerException The Netherlands Join Date: 2003-12-10 Member: 24214Forum Moderators, NS2 Playtester, Reinforced - Onos, Subnautica Playtester
    <!--quoteo(post=1710634:date=Jun 6 2009, 12:21 PM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 6 2009, 12:21 PM) <a href="index.php?act=findpost&pid=1710634"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->It shows 323W. What now? How can I calculate it to kW?<!--QuoteEnd--></div><!--QuoteEEnd-->

    The k stands for kilo, meaning thousand.

    Also, 323W is probably around peak usage, which your PC won't be doing _all_ the time.
    Unless you're going to do 3d rendering and DVD burning at the same time 24/7.

    <a href="http://michaelbluejay.com/electricity/computers.html" target="_blank">http://michaelbluejay.com/electricity/computers.html</a>
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  • ThaldarinThaldarin Alonzi&#33; Join Date: 2003-07-15 Member: 18173Members, Constellation
    Well mines 601watts so lucky you
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    Thanks!
    What do you mean "peak usage"?
    I calculated ~116 kilo-watts, is that much?

    Thaldarin wtf? How did you get 600 watts? :O
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  • lolfighterlolfighter Snark, Dire Join Date: 2003-04-20 Member: 15693Members
    116kW @ 220V = 527A
    116kW @ 110V = 1055A

    Common household fuses (at least over here) can handle 15A. Clearly, power lines are going to melt.
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  • ThaldarinThaldarin Alonzi&#33; Join Date: 2003-07-15 Member: 18173Members, Constellation
    edited June 2009
    <!--quoteo(post=1710644:date=Jun 6 2009, 06:06 PM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 6 2009, 06:06 PM) <a href="index.php?act=findpost&pid=1710644"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->Thanks!
    What do you mean "peak usage"?
    I calculated ~116 kilo-watts, is that much?

    Thaldarin wtf? How did you get 600 watts? :O<!--QuoteEnd--></div><!--QuoteEEnd-->

    As in your 323 = my 601. So I'd roughly be 200KW. I think that'd cost me something stupid like £80 a day to run <img src="style_emoticons/<#EMO_DIR#>/tounge.gif" style="vertical-align:middle" emoid=":p" border="0" alt="tounge.gif" />
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  • ThaldarinThaldarin Alonzi&#33; Join Date: 2003-07-15 Member: 18173Members, Constellation
    <!--quoteo(post=1710634:date=Jun 6 2009, 05:21 PM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 6 2009, 05:21 PM) <a href="index.php?act=findpost&pid=1710634"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->It shows 323W. What now? How can I calculate it to kW?<!--QuoteEnd--></div><!--QuoteEEnd-->

    I'd go do it again, I got much higher for you than that.
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  • ScytheScythe Join Date: 2002-01-25 Member: 46NS1 Playtester, Forum Moderators, Constellation, Reinforced - Silver
    I think you may all be getting confused between kW and kWh.

    --Scythe--
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  • lolfighterlolfighter Snark, Dire Join Date: 2003-04-20 Member: 15693Members
    Some of us deliberately.
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  • KoruyoKoruyo AUT Join Date: 2009-06-06 Member: 67724Members, Reinforced - Shadow
    edited June 2009
    323W = 0,323 kwH
    x24h = 7,752 kwH a day
    x 365 = 2829,48 a year

    24/7 full load!

    Now you need average times of your pc turned on a year, at full load and idle...

    since its almost never full load and not turned on 24/7 a year...

    it should be around 62,3712$ +- 20$(calc @ 160w idle/0,089$ per kwh) a year if your pc is running 12h a day. around 0,20$ 0,25$ a day
    in other words, just 2glasses coke less a WEEK and your pc doesnt cost u anything <img src="style_emoticons/<#EMO_DIR#>/wink-fix.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink-fix.gif" />

    why 750w psu?
    triple sli anyone oO?
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    <!--quoteo(post=1710751:date=Jun 7 2009, 10:51 AM:name=Koruyo)--><div class='quotetop'>QUOTE (Koruyo @ Jun 7 2009, 10:51 AM) <a href="index.php?act=findpost&pid=1710751"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->323W = 0,323 kwH
    x24h = 7,752 kwH a day
    x 365 = 2829,48 a year

    24/7 full load!

    Now you need average times of your pc turned on a year, at full load and idle...

    since its almost never full load and not turned on 24/7 a year...

    it should be around 62,3712$ +- 20$(calc @ 160w idle/0,089$ per kwh) a year if your pc is running 12h a day. around 0,20$ 0,25$ a day
    in other words, just 2glasses coke less a WEEK and your pc doesnt cost u anything <img src="style_emoticons/<#EMO_DIR#>/wink-fix.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink-fix.gif" />

    why 750w psu?
    triple sli anyone oO?<!--QuoteEnd--></div><!--QuoteEEnd-->
    Still its 116kW per month. So it could be like 90kW if its not full load all the time + sometimes idle?
    750W psu comes with the PC already,i think it will be needed in the future anyway <img src="style_emoticons/<#EMO_DIR#>/tounge.gif" style="vertical-align:middle" emoid=":p" border="0" alt="tounge.gif" />
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  • KoruyoKoruyo AUT Join Date: 2009-06-06 Member: 67724Members, Reinforced - Shadow
    exactly.

    As i said its just like drinking 2-3 cans cola, or smoking ~1 package cigaretts less per week and the power costs of your pc would be zero - in case u want to look it that way^^
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    <!--quoteo(post=1710763:date=Jun 7 2009, 01:12 PM:name=Koruyo)--><div class='quotetop'>QUOTE (Koruyo @ Jun 7 2009, 01:12 PM) <a href="index.php?act=findpost&pid=1710763"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->exactly.

    As i said its just like drinking 2-3 cans cola, or smoking ~1 package cigaretts less per week and the power costs of your pc would be zero - in case u want to look it that way^^<!--QuoteEnd--></div><!--QuoteEEnd-->
    oh ok.thanks.
    But if I will have 750W psu, will that UP the kW per month and so the cost? Or why is psu needed anyway... :/
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  • FaskaliaFaskalia Wechsellichtzeichenanlage Join Date: 2004-09-12 Member: 31651Members, Constellation
    edited June 2009
    <!--quoteo(post=1710767:date=Jun 7 2009, 11:00 AM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 7 2009, 11:00 AM) <a href="index.php?act=findpost&pid=1710767"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->oh ok.thanks.
    But if I will have 750W psu, will that UP the kW per month and so the cost? Or why is psu needed anyway... :/<!--QuoteEnd--></div><!--QuoteEEnd-->

    To answer that question you need to have a look at the efficiency curve of your PSU.

    Most PSUs have the highest efficiency near their max. output.

    And lower efficiency at lower wattages.

    So a 750w PSU might perform with 80% efficiency at 750W; but it will only perform with 70% at 600W.

    Thats why you should have only 20-30 W overhead.


    Stupid example:

    PSU1: max 1000W @ 90%
    PSU2 max 500W @ 90%

    Lets say your PC needs 490W with PSU 2 the PC will drain 544 W. (PSU needs to supply 490 W and in order to generate it it needs to drain 490w/90% from the power socket.)

    Same thing with PSU1, which will only operate with 70% efficiency at 500W. 490w/70% = 700W.

    Although the PC needs the same power intake in both scenarios alot of power is wasted because of PSU1 low efficiency at the needed wattage.

    Random PIC:

    <img src="http://img37.imageshack.us/img37/7849/psumatching.jpg" border="0" class="linked-image" />

    As you can see if you need 200W the blue PSU needs lesser power intake to generate those 200W (higher efficiency).
    If you only needed 90W the 600W would be total overkill, cause its efficiency at 90W is only 74%. So it would need 121W intake to generate 90W output.
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  • X_StickmanX_Stickman Not good enough for a custom title. Join Date: 2003-04-15 Member: 15533Members, Constellation
    Numbers!

    <img src="http://img.photobucket.com/albums/v221/X_Stickman/Stuff/CHART.jpg" border="0" class="linked-image" />

    <!--sizeo:1--><span style="font-size:8pt;line-height:100%"><!--/sizeo-->Boredom!<!--sizec--></span><!--/sizec-->
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  • FaskaliaFaskalia Wechsellichtzeichenanlage Join Date: 2004-09-12 Member: 31651Members, Constellation
    <!--quoteo(post=1710773:date=Jun 7 2009, 12:14 PM:name=X_Stickman)--><div class='quotetop'>QUOTE (X_Stickman @ Jun 7 2009, 12:14 PM) <a href="index.php?act=findpost&pid=1710773"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->Numbers!

    CHART

    <!--sizeo:1--><span style="font-size:8pt;line-height:100%"><!--/sizeo-->Boredom!<!--sizec--></span><!--/sizec--><!--QuoteEnd--></div><!--QuoteEEnd-->

    oO

    Piechart = Pacman
    Pacman = Fun

    -> Charts = Fun

    QED
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    <!--quoteo(post=1710778:date=Jun 7 2009, 03:03 PM:name=Faskalia)--><div class='quotetop'>QUOTE (Faskalia @ Jun 7 2009, 03:03 PM) <a href="index.php?act=findpost&pid=1710778"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->oO

    Piechart = Pacman
    Pacman = Fun

    -> Charts = Fun

    QED<!--QuoteEnd--></div><!--QuoteEEnd-->
    Im trying to understand what you wrote about the watts, but... nothing, sorry lol.
    Its hard to understand what is it, and so I still dont know why I need 750W :o
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  • That_Annoying_KidThat_Annoying_Kid Sire of Titles Join Date: 2003-03-01 Member: 14175Members, Constellation
    whilst I do enjoy the technical banter about electricity and the stimulating chart, I think that stickman wins this one
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  • JaspJasp Join Date: 2003-02-04 Member: 13076Members
    edited June 2009
    750w PSU will be fine, that rig would run quite happily on a 650w Corsair TX if you wanted a few less watts.

    What has not been mentioned is when you load a PSU upto is limit you produce far more heat, far more heat means the fan has to run a lot faster to keep it cool giving you a hell of a headache.

    I would personally rather have a couple of hundred watts overhead then run my PSU to the limit.

    Please see the below graphs, the Corsair PSU is at its best under 50% load.

    <a href="http://www.corsair.com/_images/charts/tx650w_efficiency.jpg" target="_blank">http://www.corsair.com/_images/charts/tx650w_efficiency.jpg</a>

    <a href="http://www.corsair.com/_images/charts/tx650w_noise.jpg" target="_blank">http://www.corsair.com/_images/charts/tx650w_noise.jpg</a>
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  • FuleFule Join Date: 2009-06-04 Member: 67683Members
    But what if that case has 3 fans? 1 in front, 1 in back and 1 on the side. Is that ok either?
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  • ZaggyZaggy NullPointerException The Netherlands Join Date: 2003-12-10 Member: 24214Forum Moderators, NS2 Playtester, Reinforced - Onos, Subnautica Playtester
    <!--quoteo(post=1711070:date=Jun 8 2009, 03:07 AM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 8 2009, 03:07 AM) <a href="index.php?act=findpost&pid=1711070"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->But what if that case has 3 fans? 1 in front, 1 in back and 1 on the side. Is that ok either?<!--QuoteEnd--></div><!--QuoteEEnd-->

    As long as the insides of the case stay cool you're fine ;-)
    I do hope the fans are rather silent though.
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  • ThaldarinThaldarin Alonzi&#33; Join Date: 2003-07-15 Member: 18173Members, Constellation
    <!--quoteo(post=1711070:date=Jun 8 2009, 08:07 AM:name=Standart)--><div class='quotetop'>QUOTE (Standart @ Jun 8 2009, 08:07 AM) <a href="index.php?act=findpost&pid=1711070"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->But what if that case has 3 fans? 1 in front, 1 in back and 1 on the side. Is that ok either?<!--QuoteEnd--></div><!--QuoteEEnd-->

    This will contribute a grand total of 4Watts give or take a watt, at most.
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  • JaspJasp Join Date: 2003-02-04 Member: 13076Members
    Currently have running on a corsair 650TX:

    X4 940
    4 GB Ram
    ATI 4890
    DVD Drive
    Floppy Drive
    500GB HD
    3 X 230mm Case Fans (1 LED Lit)
    1 X 120mm Case Fan
    3 X Connected USB Devices

    Don't think ive ever heard the PSU spin up tbh lol.
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