Temperature Rising significantly barely OC'd

so I overclocked my stock 2.8 GHZ intel i5 760 quad core to 3.05 ghz. i just changed the base clock and left the multiplier at 21. i didnt change any voltages. i turned off a bunch of settings like C STATES and Speedstep. is this why the temperature is so high now? The temp now is 37 Celcius idle and before the overclock at 2.8 ghz it was only around 25-30 C idle. i got a zalman 9900 cpu heatsink too. do voltages affect temperature? i have an evga p55 le mobo btw. if that matteres.
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  1. Yes voltages do affect temperature...only if you didn't change any voltages it shouldn't be the problem in your case...Speed step being turned off could be the reason as speed step would lower your cpu clock and voltages when idle and that would produce less heat...but the real question id what your load temps are at...
    check your load temps if they don't go much higher than they used to then you have nothing to worry about...
  2. You say you didn't change any voltages if this means you left them on Auto then they will increase most likely more than they need to. If you set the voltage to stock then please ignore me.
  3. yeah auto is not exactly always stock...and like I said, turning off speedstep could have been the reason your idle temps went up...
  4. One way to check is to run CPU-Z (free download here: http://www.cpuid.com/softwares/cpu-z.html) during the OC and the stock settings. In particular, when you load the default BIOS settings, watch the voltage and clock speeds in CPU-Z and let us know how they compare to the overclocked voltages and clock speeds. Be sure and compare the voltages and speeds while the computer is idle and while running a cpu stress test of some kind (like Prime95: http://files.extremeoverclocking.com/file.php?f=103)
  5. yeah use prime 95 or you can use intel burn test to stress the cpu to full and then use core temp to check the temperature of your cpus cores...
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