2500K won't boot past 4.2ghz...is that odd?

OmegaRED · Dec 5, 2011, 07:08 AM

I couldn't get past 4.2ghz on my old board so I upgraded to the UD7 but it's the same thing I except I can't even boot if I set to anything past 4.2ghz. I tried 100BLK and 1.4Vcore with LLC to 1 and still can't even get it to post. After I save and exit the bios it just shows stock settings until I lower it to 4.2 then it will stock. My temps are under 55C load at 4.2 in Prime95 with auto voltages which are pretty high so I feel like I've got plenty of headroom to push it further...is this just a dud chip?

Lord Xeb · Dec 7, 2011, 05:15 PM

increase the TDP and current limit above 300 also use LLC level 3 your probably drooping too low. A small voltage droop may not seem like much to other chips before SB, but SB is VERY responsive to voltage.

Dec 5, 2011, 07:08 AM	#1
OmegaRED Relapsed Gamer Join Date: Oct 2002 Location: Ottawa , Canada Posts: 5,688 Rep Power: 173 System Specs	2500K won't boot past 4.2ghz...is that odd? I couldn't get past 4.2ghz on my old board so I upgraded to the UD7 but it's the same thing I except I can't even boot if I set to anything past 4.2ghz. I tried 100BLK and 1.4Vcore with LLC to 1 and still can't even get it to post. After I save and exit the bios it just shows stock settings until I lower it to 4.2 then it will stock. My temps are under 55C load at 4.2 in Prime95 with auto voltages which are pretty high so I feel like I've got plenty of headroom to push it further...is this just a dud chip? __________________ E Penis Specs: <------------- See System Specs

Dec 7, 2011, 05:15 PM	#2
Lord Xeb The Perpetual Fire Drill Join Date: Nov 2011 Location: NY Posts: 17 Rep Power: 0 System Specs	Re: 2500K won't boot past 4.2ghz...is that odd? increase the TDP and current limit above 300 also use LLC level 3 your probably drooping too low. A small voltage droop may not seem like much to other chips before SB, but SB is VERY responsive to voltage.