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Understanding CPU Temps

post #1 of 2
Thread Starter 
Hello,

I got an i7 4770k and am trying a bit of overclocking.

I have noticed that at 4.0ghz the temp is a reasonable 68c max. At 4.1ghz this actually hoes down at 65c max. Then at 4.2ghz it rockets to over 90c and I stop burn in.
.
Can somebody help me understand this phenomenon? Why would it get cooler at 4.1ghz than 4.0ghz and then eggy the massive increase just going to 4.2ghz? No voltage changes.
Might I find a lower tell at an even higher clock? I tried 4.5ghz but it was also quickly over 90c.

Thanks!
post #2 of 2
Are you monitoring CPU speed and load while stressing?

Have you disabled Speed Step and all that other "automatic" CPU controls.
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
Reply
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