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i5 2500k Power draw ?  

post #1 of 8
Thread Starter 
How much does this chip uses @ idle , and @ full load @4.5Ghz ( approx ) ?
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post #2 of 8
Depends what Vcore you needed to get too 4.5.
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post #3 of 8
Idling: maybe 100W, give or take 5-15 watts. Or possibly a tiny bit more...

Under load: that depends on what's under load and what kind of load it is. However, NVIDIA recommends a power supply that has a peak capacity of 680W for a system that has one GTX 295 in it, which means that you could use a quality 550W to 650W power supply and still have enough power.

Although, I recommend a Kill A Watt, and I recommend taking whatever reading you get and multiplying it by 0.85 (for 85% efficiency) to find out how much power it's pulling from the PSU.
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post #4 of 8
Thread Starter 
1.325 vcore
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post #5 of 8
Quote:
Originally Posted by Darkslayer7;15327496 
How much does this chip uses @ idle , and @ full load @4.5Ghz ( approx ) ?

It depends, HT on/off but approx is 163w.
power-2.png


http://www.xbitlabs.com/articles/cpu/display/core-i7-2600k-990x_12.html
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post #6 of 8
About 90W by itself. Mine is at that voltage and thats what it draws.
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post #7 of 8
Quote:
Originally Posted by Hawk777th;15327670 
About 90W but itself. Mine is at that voltage and thats what it draws.
This.

My Kill A Watt reads 152W while my system is idling.

However, due to my setup, I have everything plugged into it through a surge suppressor:
  1. Rig
  2. Monitor
  3. Speakers
  4. Cable modem
  5. Router
  6. Cordless phone (not the main one, but one of the 3 slaves)
  7. Printer

When everything is turned off, it reads about 22W. Now, while everything is off, all that's left is an idling printer (standby mode), cordless phone, cable modem and router. My speakers pull about 1-2W while idling, but I still turn them off when I turn my system off just because I can.

When my sig rig is idling but my monitor is turned off, my Kill A Watt reads 122W. That means my monitor pulls about 30W.

So when I subtract the 22W of power being pulled by the idling printer (stand-by mode), phone, cable modem and router combined, I get 132W. When I subtract my monitor (30W), I get 102W.

So, if I were able to have only my sig rig plugged into my Kill A Watt (not possible right now), then it would be reading about 102W at this very moment. If my PSU is being about 85% efficient, then that would mean my system is pulling about 85W while it's idling.

So what about my load? I've never been able to get a reading higher than 495W from my Kill A Watt. However, this is still including everything, so I still have to subtract the monitor, printer, phone, cable modem, speakers (1-2W while idling) and router. That means I have to subtract about 52W. So if I could connect only my sig rig to my Kill A Watt, then I would never be able to get a reading higher than 445W. However, I still have to factor in about 85% efficiency which brings me to a maximum power draw of about 380W being pulled from my PSU under full load (well, at least while running Furmark a few different times to find the settings that pull the most power).

Now, Guru3D.com usually recommends adding about 100W-150W to a power draw reading in their reviews because like me, they're only testing the draw with the video card(s) under full load. So that would come out to be about 480W to 530W for me (that is, of power being pulled from my PSU). Although, I would only be able to add this 100W to 150W if I were to have my CPU under maximum load at the same time as my GTX 580 which rarely happens. wink.gif
Edited by TwoCables - 10/16/11 at 2:16am
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #8 of 8
Do not create duplicate threads.

Use this thread as it was the original:

http://www.overclock.net/power-supplies/1143523-system-power-draw.html
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