I finally got i5 2500K yesterday and noticed in BIOS that CPU temperature is about 55 °C which seemed way too high for idle CPU. I figured I didn't attach the CPU heatsink properly so I reattached it. BIOS then showed about 45-58 °C.
I installed RealTemp and did some testing, turns out temperature is in anywhere between mid 30s and low 40s when idle and in all ranges of 60 when under 100% load.
Are these temperatures normal for stock heatsink? I'm also using the default thermal compound. I can't say I'm not worried about temperatures being to high.
I'm getting Zalman CNPS9900 MAX next month and I hope idle temperatures could be below 30 °C and 100% load temperatures below 50 °C on stock clock speeds. I plan to OC to 4.0-4.5 GHz as well.
I have never used the intel stock heatsink before. But i do know that with my i5 2300(i'm cheap and was able to find it on ebay for 100 dollars great deal)
idles on low 40c and then goes into low 50s with an after market cooler.(my thermal paste is not well spread, and i didn't have enough to reapply.)
i suggest you get new thermal paste at least until your new heatsink gets in.
72 C? That's just a little toasty. The numbers are within the average margins for an Intel boxed cooler. Keep in mind the crappiness of boxed coolers helps drive the sales of aftermarket coolers for people who like to tinker with their chips.
I think your chip is fine. You just need the better cooler.
First your tems are fine for the Blankity blank Stock HSF. With the i5-2500k, max temp is 95 C at which point it will throttle down.
Dif between bios and in win 7 at idle. In bios the the CPU is running at advertized speed. once windows has loaded and at Idle, if you look at your CPU speed it will be about 1.6 GHz, way lower than in bios.
I have the 9900max and love it. Have a mild OC on my i5-2500k (4.2) and temps runing prime 95 are below 60 C. Side Comment the 9900 max was a little hard getting the 4 screws into the backing plate, hope thy increased the screw lenght a little.
Also have the 9700LED HSF on my i5-750 OCed to 3.2 Ghz and it works very well.
No, Your OK. I see many that the core temps differ By ± 5 C. and 8 C is not a concern unless the Highes core is above your confort level. Generally cause by a slight diff in Thermal paste variance on CPU.