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Overclocking a 2600k 45x100 @ 1.350v in Bios Still BSOD 101 (SOLVED) - Page 2

post #11 of 15
Be careful with LLC, sometimes it is the CAUSE of voltage related BSODs:
I noticed I was BSODing when gaming and when Idle/browsing the internet, NOT when stress testing. With this observation, I came to the conclusion that my system was BSODing when the multiplier was rasied to MAX but the processor wasn't quite at full load. I don't think the mobo was supplying enough power to the proc under light to moderate load scenarios. When LLC is on ultra, the core voltage increases with processor load, being at the highest when the system is at full load. When LLC is not on, or on a lower setting, the processor pumps the most volts into the processor before full load. So when you find that you're proc is stable @ 1.35v full load and LLC is on ultra, during light loading it will still be running at the overclocked speed but with less volts going into it causing instability. LLC being lower gives to a cushion to fall on in a sense, for example, if your proc is stable @ 1.35v full load(accounting for vdroop) and LLC is off, before it hits full load the volts are going to be around 1.37 or so. Therefore the unstable area when the processor is at a moderate load disappears.

I REALLY hope that made sense. I might have to reword some of this stuff later.

This is simply a theory of mine.
post #12 of 15
Thread Starter 
Yes seems like very useful information, I never thought of LLC being like that. Thought it would just raise thermals a bit... I dont even need to be greedy so if my OC is stable at 4.5 thats where I will stay.

Seemed to be stable at high LLC so not sure if ultra is worth it considering most of my work would be done on lower processor power.

I'll switch back and test it and go from there.


Great tip! thumb.gif
post #13 of 15
Quote:
Originally Posted by benson733 View Post

Testing now. 1.370 droops an average to1.360 thumb.gif Thats a great improvement. I almost feel if this is stable I might be able to get to the next multiplier or so. Dont want to get greedy though biggrin.gif
Temps are currently maxed at 59C 69C 63C 63C With a Noctua DH-14 (Core 1 is always a bit extra toasty?)
I keep my thermals in check, I don't want to degrade my baby, just turned 1 year old this week.

Looks good, Ya you should be Rock solid. I got a 1.3611 VID Chip and it runs solid @ 4.5 with 1.365 (1.376 BIOS PLL 1.360 min VDroop) if not you can always bump her up another few volts, you got plenty of headway.
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Gaming Rig
(18 items)
 
   
CPUMotherboardGraphicsRAM
Intel i5-2500k @ 4.6 GHZ ASUS P8Z77-V PRO XFX AMD 6970 2GB CORSAIR VENGENCE DDR3 16 GB 1600mhz 9 9 9 24-2R 
Hard DriveHard DriveHard DriveOptical Drive
Western Digital 7200 rpm 500 gb (Storage)  CRUCIAL M4 64 GB SSD SATA III (Boot Drive) External 1 TB Western Digital HDD ASUS DVD-RW 
CoolingOSMonitorKeyboard
ZALMAN CNPS9900MAX Windows 7 Ultimate 64 Bit Acer 1920 x 1080 23 inch Razer BlackWidow 2013 Ultimate Mechanical keybo... 
PowerCaseMouseMouse Pad
CORSAIR 650 Watt ANTEC 900 Razer NAGA Razer Kabuto 
AudioOther
Logitech G930 and some speakers. USB Drives Oh and a surge protector to prevent ... 
CPUMotherboardGraphicsRAM
Intel Celeron Dual Core G530 @ 2423 MHZ ASUS P8Z68-V PRO EVGA 550 Ti G.SKILL Ripjaws Series 4GB DDR3 1600 MHZ 9-9-9-24 
Hard DriveOptical DriveCoolingOS
250 GB 7200 RPM Western Digital LG DVD RW You don't wanna know. Win 7 64 
Monitor
19 inch dell 1280 x 1024  
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post #14 of 15
Thread Starter 
Im testing it right now at 1.380 Vcore drooping to about 1.320 with high LLC because I want that "cushion". So far completed 8 passes of IBT Maximum with 16GB of memory.

UPDATE:

20 Passes of Maximum IBT and my results were stable! I am going to run 50 passes of standard and 12 hours of Prime 95 custom blend.

But for now I am fairly certain my cpu is stable and am going to enjoy some actual time using it at 4.5Ghz

Here's a sreenie biggrin.gif

fz4sP.png
Edited by benson733 - 1/18/12 at 3:37pm
post #15 of 15
Thread Starter 
UPDATE 2: all seems good! I appear to be stable 20 passes of IBT Maximum, 50 passes of IBT Standard, just going to run a custom 12H blend of prime tonight. Thanks for all the help everybody, I'm deciding to stay at 4.5Ghz as I don't really need any more speed and my temps are good "Also compensating for warmer ambient temps in summer weather".
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Overclock.net › Forums › Intel › Intel CPUs › Overclocking a 2600k 45x100 @ 1.350v in Bios Still BSOD 101 (SOLVED)