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Are these fluctuating temps correct? I5 3570K.

Last response: in Overclocking
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January 9, 2013 1:28:25 PM

I've started playing around with the clock and vcore on my new i5. At idle my temps are around 28C. Under Prime95 Blend load I'm at around 65C-70C. The odd thing is that the temps fluctuate wildy. When I start Prime 95 the temps instantly go from 28C to 60C. Then the temps slowly go up to 70C from 60C and them BAM! right back down to 65C. The temps then go slowly up to 70C and then again BAM! right back down to 65C.


Something similar happens when I turn off Prime 95. The temps will instantly go from 70C to 35C then slowly go down to the idle temp from there.


Current setup:
Cooler Master Hyper 212 EVO
Asrock Extreme6 mobo
Core I5 3570K


Snapshot of AIDA64 at highest temp values I see:

Field Value
Sensor Properties
Sensor Type Nuvoton NCT6776F (ISA 290h)
GPU Sensor Type Diode (ATI-Diode)
Motherboard Name ASRock Z77 Extreme6
Chassis Intrusion Detected Yes

Temperatures
Motherboard 32 °C (90 °F)
CPU 40 °C (104 °F)
CPU Package 74 °C (165 °F)
CPU IA Cores 74 °C (165 °F)
CPU GT Cores 73 °C (163 °F)
CPU #1 / Core #1 71 °C (160 °F)
CPU #1 / Core #2 73 °C (163 °F)
CPU #1 / Core #3 73 °C (163 °F)
CPU #1 / Core #4 74 °C (165 °F)
GPU Diode (DispIO) 49 °C (120 °F)
GPU Diode (MemIO) 50 °C (122 °F)
GPU Diode (Shader) 48 °C (118 °F)
Samsung SSD 840 PRO Series 22 °C (72 °F)
WDC WD30EZRX-00MMMB0 26 °C (79 °F)

Cooling Fans
CPU 1812 RPM
System 1167 RPM
Chassis 1229 RPM
GPU 1415 RPM (35%)

Voltage Values
CPU Core 1.256 V
+3.3 V 3.328 V
+5 V 5.136 V
+12 V 12.197 V
+5 V Standby 5.236 V
GPU Core 0.950 V

Power Values
CPU Package 78.58 W
CPU IA Cores 70.43 W



a b à CPUs
January 9, 2013 1:44:50 PM

thats normal for cpu's at full load they will hit peak temp and then idle it will drop to a low temp. So no need to worry its all fine :) 
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January 9, 2013 3:45:00 PM

Running the same hardware here. (Extreme 3 though)
I get the same results as you. (26c idle) (61c load)

It's 100% normal for any cpu.

Question, How far did you overclock it?
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