I975 extreme oc 4.0ghz, windows 7 64 bit, evga x58sli le, 1,000 watts corsair, 6 gigs of 1600 mushkin memory, fsx has own drive g, operating system on dirve c, CoolMaster half 932,, g-force gtx 580, 1536 mb., Extreme cooling, h2o stage 3,high performance liquied filled frostbite. Also have utx, gex, rex 2,kfll, jfk, tampa rebooted. Planes level-d 767, PMDG 747, and j41, md-80 professional, the duke, captain sim 727,757, 777, and 707., airbus-x.MY PROBLEM IS THAT I CAN'T GET TO 4.2 GHZ NEED SOME GOOD HELP CURRENTLY AT 4.0GHZbioscpu v core - 1.39, cpuvttvoltage - 225, v droop on, dimm Voltage -1.65, IOH/ICH-160, ich vcore-120, cpu/pllv core-auto,qpipllv core 1.328, dim power [+OmV} iohcore 1.375, 33 degrees at idle..Passed Linx test at 4.0 but failed at 4.2ghz.cpu clock ratio -on, cpu host frequency mhz 1333, target of cpu frequency 4010 mhz [33x30], intel speedstep disabled,virtuaization disabled, hyperthreading disabled, qpi contol volts enabled, qpi link fast mode auto,, mch strap auto, cpuuncorre frequency mhz auto, cpu clock skew=0, spread spectrum disabled,pcie frequency mhz [100] oc recovery diabledacpi fuctionality enabled, power on function disabled, memory speed standard, using 2:12, memory low gap auto, memory running at 9,9,9,24,84, 1tI would really appreciate any advice of getting to 4.2 ghz, thus I would stay with my current computer since I just bought the 580 coming from a 285 and makes a big differene. Something here I must be doing something wrong. and its really frustrating, so HELP please

I975 extreme oc 4.0ghz, windows 7 64 bit, evga x58sli le, 1,000 watts corsair, 6 gigs of 1600 mushkin memory, fsx has own drive g, operating system on dirve c, CoolMaster half 932,, g-force gtx 580, 1536 mb., Extreme cooling, h2o stage 3,high performance liquied filled frostbite. Also have utx, gex, rex 2,kfll, jfk, tampa rebooted. Planes level-d 767, PMDG 747, and j41, md-80 professional, the duke, captain sim 727,757, 777, and 707., airbus-x.MY PROBLEM IS THAT I CAN'T GET TO 4.2 GHZ NEED SOME GOOD HELP CURRENTLY AT 4.0GHZbioscpu v core - 1.39, cpuvttvoltage - 225, v droop on, dimm Voltage -1.65, IOH/ICH-160, ich vcore-120, cpu/pllv core-auto,qpipllv core 1.328, dim power [+OmV} iohcore 1.375, 33 degrees at idle..Passed Linx test at 4.0 but failed at 4.2ghz.cpu clock ratio -on, cpu host frequency mhz 1333, target of cpu frequency 4010 mhz [33x30], intel speedstep disabled,virtuaization disabled, hyperthreading disabled, qpi contol volts enabled, qpi link fast mode auto,, mch strap auto, cpuuncorre frequency mhz auto, cpu clock skew=0, spread spectrum disabled,pcie frequency mhz [100] oc recovery diabledacpi fuctionality enabled, power on function disabled, memory speed standard, using 2:12, memory low gap auto, memory running at 9,9,9,24,84, 1tI would really appreciate any advice of getting to 4.2 ghz, thus I would stay with my current computer since I just bought the 580 coming from a 285 and makes a big differene. Something here I must be doing something wrong. and its really frustrating, so HELP please

Why not stay at 4.0 if that runs stable for you... you will not notice any substantial difference in FSX with 4.2 vs 4.0

Your CPU Vcore looks low. I run an eVGA X58 3X SLI (not the LE version) and an i7-975--at 4.26GHz (32x133) it's stable with 1.40v Vcore with Vdroop enabled. I'd start with CPU Vcore at ~1.42v, see if that runs it stable, if so, try backing it down a step at a time until it throws errors, then bump it back up a notch or two.Use E-Leet to make sure the reported Vcore does not exceed 1.49v under load.Also, your IOH Vcore seems a bit high...since you're not overclocking the base clock, the IOH shouldn't need so much...I run mine at 1.30v

i7 975 core voltage at 1.39 for 4.2GHz is "kinda" pushing it, you'll need more core voltage, also QPI/VTT may need to be raised a little.Start with raising the core voltage a little, if not stable raise it a little again. If you can post a pic of all your bios settings that will help.Always keep an eye on the temps when stress testing.Good luck.