Overclock.net › Forums › Intel › Intel CPUs › Question about the power draw of my 3930K?
New Posts  All Forums:Forum Nav:

Question about the power draw of my 3930K?

post #1 of 6
Thread Starter 
So during prime95 blend test, with most RAM used up, I am hitting 68c hottest core @ 4.4GHz, 1.3v.

However, the power draw suddenly increases from 185watts to 200watts and my temps shoot from 68c to 75c. The power draw then decreases after a little while back down to 185watts, and the temps fall back to 68c. This process constantly repeats.
I am just wondering why this is happening? Is the motherboard pumping extra juice into the CPU at times? All my voltage settings are on auto at the moment. Do I need to start hard locking in some volts for the PLL and so on? If so, what do I need to try?

Thank you for the help!
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
post #2 of 6
Thread Starter 
Bump. Sorry for the bump being under 24 hours, it is urgent.
Thank you.
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
post #3 of 6
Have you monitored your CPU with RealTemp to see if the CPU multiplier is being throttled during this test?

RealTemp GT 3,70
http://www.techpowerup.com/downloads/2089/Real_Temp_3.70.html

Some motherboards have trouble delivering enough juice when pushing 6 core CPUs hard.

Power consumption can vary depending on what part of the CPU is being worked but your difference seems like more than just that.
post #4 of 6
Thread Starter 
Quote:
Originally Posted by unclewebb View Post

Have you monitored your CPU with RealTemp to see if the CPU multiplier is being throttled during this test?

RealTemp GT 3,70
http://www.techpowerup.com/downloads/2089/Real_Temp_3.70.html

Some motherboards have trouble delivering enough juice when pushing 6 core CPUs hard.

Hello, I can confirm that the speed is not throttled at all. When the wattage increases by 1, the full load temp increases by 1c, when the wattage is past 200watts.

The wattage usage goes over and under 200watts during testing. In which case, the full load temp goes from 80c to 77c ish. Process is repeated.
Edited by BradleyW - 4/13/13 at 10:24am
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
post #5 of 6
THis happens with stress tests, especially ones like IBT, they don't continuously stress your CPU at that kind of load, they put for different stress levels, usually a low stress level for 1/4 of the time, and then 3/4 of the time would be higher stress level. Both times your CPu will report 100%.

Also watch your VCore, your VCore will show this, as LLC is dependent on CPU load and it will fluctuate between two states during IBT. I am sure prime95 is the same way. You can only really see this affect through watching the temperature or watching the vcore or current. .
    
CPUMotherboardGraphicsRAM
Intel Core i9 7980XE X299E-ITX/ac GTX 1080 Ti FE G.Skill 3800MHz 4x8GB Quad Channel SO-DIMM Kit 
Hard DriveCoolingOSMonitor
512GB 960 Pro Bitspower AIO/ITX Full Cover Block Win 10 4K 37" 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i9 7980XE X299E-ITX/ac GTX 1080 Ti FE G.Skill 3800MHz 4x8GB Quad Channel SO-DIMM Kit 
Hard DriveCoolingOSMonitor
512GB 960 Pro Bitspower AIO/ITX Full Cover Block Win 10 4K 37" 
  hide details  
Reply
post #6 of 6
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post

THis happens with stress tests, especially ones like IBT, they don't continuously stress your CPU at that kind of load, they put for different stress levels, usually a low stress level for 1/4 of the time, and then 3/4 of the time would be higher stress level. Both times your CPu will report 100%.

Also watch your VCore, your VCore will show this, as LLC is dependent on CPU load and it will fluctuate between two states during IBT. I am sure prime95 is the same way. You can only really see this affect through watching the temperature or watching the vcore or current. .

Thank you very much for the information.
I am able to run my 3930k at 4.4Ghz at 1.32vcore. Is this a good overclock and will it be able to smash through the latest games?
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Question about the power draw of my 3930K?