i7 920 @22x CPU Multiplier Tests


Looks like there's more uses for Intel's Turbo mode on DFI UT X58-T3EH8 especially for single threaded benchmark/apps like Super Pi. In bios set Turbo enabled, EIST enabled, Set to 1 core enabled and you have access to fixed 22x cpu multiplier

Quick Prime95 @22x134 Bclk with DDR3-1600/3200 DRAM/Uncore frequency set in bios for 6x DRAM memory multiplier.



Will test more to see how far I can push cpu and Bclk with 22x multiplier

Also flashed from intial 12/18 official bios to 12/31 beta bios for improved DDR3 memory compatibility as well as support for latest setFSB 2.1.88

More 22x cpu multiplier results:
  • With 22x multiplier, seems max bclk in memtest is 208 bclk compared to 21x multiplier and 224 bclk
  • With 22x multiplier, max windows bootable is well below 200 bclk, I booted into windows at 190bclk and using new setFSB 2.1.88 bumped bclk to around 200-205 for max screenshot and validation. Compared to 21x multiplier and 220bclk bootable from bios into windows.


@22x205 = 4515Mhz at 1.52v idle (vdimm = 1.875v bios)





@22x200 = 4418Mhz at 1.52v idle (vdimm = 1.875v bios)