I'm new at OC and dont know much about it. I read an online guide in order to overclock a 920 wich is similar to mine.
So here are my settings with first OC:
Core Frequency: 3,3 Ghz
(BCLK F: 160)
core volt: 1,1 V
Core multiplier: x21
Dram Frequecy: 1282
Dram Bus voltage: 1,64 V
Every other settings are set to auto or enabled for turbo mode.
Here is my hardware:
CPU: i7 930 @ 2,8
DDR3: 6Gb Corsair (dont know the frequency...)
PSU: Corsair 750W (not sure about the load, might be too much for this)
Videocard: GTX 460
HD: Raid 0 with 2 Sata-II 7200 RPM
CPU cooling Unit: Corsair H70
I've used prime95 for an hour for my first attempt and wind up stable at 75 degrees.
I assume my temp would have gone higher still if I had left it longer. But this was only to test the parameters and see if I could achieve stable temperature. I wonder if my Dram bus voltage is too high.
Also, i wonder whats the difference in rising a CPU frequency up to 4Ghz with a 21x or a 22x. Whats the difference ? Is one better, lower power consumption ?
If you take the BLCK and multiply it with the Multiplier it comes to the Frequency of the CPU.
The highest multiplier is the CPUs turbo frequency multiplier. I always like to set my multiplier to the highest it can be on the Nehalems to remove Turbo Boost and to keep it running at its best all the time.