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135299
Came in at 4.4GHz @ 1.02v
my OC: 4.8 GHz @ 1.25v stable
35 degrees C idle, about 60 degrees under gaming load (crisis 3, tomb raider), also about 80-90 degrees under stress test
might be able to OC further if I knew how to tweak my Asus hero 7 mobo better. but with my current cooling system(h100i) I am comfortable where I am at.
The default CS around 4.4Ghz I overclocked it to 4.9Ghz
Overclocking:
I overclocked it using an Asus Z97-A motherboard. It was able to achieve 4.7ghz at 1.245 volts. Runs steady and fast. Temperature was running at the high 70's to low 80's. I have a poor mid-ATX case, so a good case with lots of fans will definitely be able to achieve a greater overclock. I used AIDA64 to run the stress test for a good 10-15 minutes. Temperatures ran around high 70's to low 80's all 4 cores. That was hot, and it was my limit. Temperatures in my room were in the 80's.
To get to 4.8ghz, i had to increase the voltage to 1.30. That's a big jump in voltage for just 100 mhz extra. And my CPU was running too hot, so i didn't want to risk it. Anything below 1.30 volts didn't even get me to the desktop. It'll just blue screen and restart on me. Definitely needs a lot of juice power if you're overclocking to 4.8ghz. And as a personal preference, having fans blow directly on the CPU cools a lot better than a fan that blows hot air out. Fresh, cold air blowing directly at the CPU is always a plus. Downside is it'll build up dust a lot faster. A fabric softener installed in front of the fan to catch the dust will suffice.
Side note:
UPGRADE YOUR COOLING SYSTEM!!! Liquid cooling is preferred. Air coolers are good. But you will always get better speed with liquid coolers. Without overclocking, this CPU runs at 4.0ghz and temperatures reach around mid 60's to low 70's. And that's only at 4.0ghz. So definitely buy a cooling system.