I was thinking about overclocking my Intel i7 920 D0 Stepping CPU that I purchased back in 2009: http://ark.intel.com/products/37147/Intel-Core-i7-920-Processor-8M-Cache-2_66-GHz-4_80-GTs-Intel-QPI
At 2.793 Ghz (multiplier increased to 21x and Turbo Boost disabled, everything else on Auto) I get these temperature results in AIDA64 while using Prime95's Small FFT stress test: (20 minutes) http://imgur.com/eVelXwp
Edit: It's been an hour and 50 minutes with Prime95 now and the hottest CPU Core is holding at 65 degrees celcius and "CPU" (what does this variable refer to?) is holding at 56 degrees celcius. Edit: http://imgur.com/MqxGzPK
(2 hours 10 minutes)
Should I be worried about these results before even beginning to consider overclocking? I am using a Noctua DH14 Heatsink, are these temperatures in line with using this heatsink? If they aren't then maybe I applied the thermal paste improperly or the heatsink isn't applied as firmly against the CPU as it should be.
I've been reading this guide on overclocking the CPU and am currently just monitoring temperatures before doing anything drastic. I'm pretty unfamiliar with modern overclocking but can understand the guide in the original post, It was a lot easier when you just had a FSB and Multiplier to adjust
If the temperatures are good, what are some good suggested voltages for achieving an overclock of say, 3.2 to 3.4Ghz? The guide provides values for achieving a 4Ghz overclock but I don't want to be quite that risky with my hardware.
Edit: "What are safe voltages?" should be updated to mention the 1.275v VCore value for D0 Stepping CPU's.
Edit: Modern Prime95 versions don't seem to let you specify more Threads than there are CPU Cores. In the case of the 920 and 940 CPU that would be 8 threads max (not 10!).