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i5 2500k overclocking proving to be a nightmare :( - Page 10

post #91 of 99
Thrasher - It's not real. 1.08v won't run the chip at stock 3.3. Educated guess - what you are seeing is the cpu core downclocked to 1.6, as it is designed to do under no load - that gives a different voltage reading, depending on how you do your overclock. ((edited OK munaim says it's probably vtt)) What's your LOAD voltage, should be somewhere near 1.3v.

munaim1 - yes, you helped me out last week in I think both the Stable Sandy and Official Gigabyte 67/68, where I have posted extensively of my findings. Correct, no LLC + offset at the same time. In fact, when using offset you cannot adjust vcore (at least on this board), you have to take what the settings give you and adjust from there. I could not boot up, needed too much +offset I suspect. It sure didn't like something.

All that said, I'm stable 4.8. I don't get what's scary about LLC 8, I will admit that - a couple of people have commented it's dangerous, without explaining why. I'm not getting upwards spikes under load - yes, I DO go up about .050 if a single core is loaded, BUT I GET THAT REGARDLESS WHAT LEVEL LLC IS USED (I tested) - though I do get idle voltage floating around a fair bit 1.404-1.416-1.428-1.440, but it spends most of the time at 1.416.
Edited by keto - 10/15/11 at 8:04pm
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post #92 of 99
That voltage came from HW Monitor, but then I looked in Sandra, and I'm seeing 1.336V...
That seem more real?
post #93 of 99
Yup, like I said in my prev post, right around 1.3.
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post #94 of 99
Thread Starter 
Morning all. well tested my most stable settings of the night for a long prime blend.
1.3vcore
LLC level 6
1.356-.136 load
1.332 idle
Unfortunately one of my cores stopped at just under the 8 hour mark

another 0.5 bump in vcore should help right?
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post #95 of 99
Thread Starter 
Right update guys. I'm hoping this thread is helpful for those gigabyte z68 users out there. shame i can't change the thread title to make these people aware it surrounds the concerns with gigabyte overclocking.

anyway to anyone who's interested i did a bit of an overhaul with settings based on all the information i have read both in this thread and elsewhere and so far (just over 2 hours prime blend) it's running stable.

first i set the turbo voltage to 200 watts left the other one cpu overvoltage i beleive it's called at auto
then changed all the multipliers to 45 (better safe than sorry)
now disable both intel turbo and real time changes in OS
enable internal CPU overvoltage
change the clock ratio to 45
all the power saving settings are disabled for now but i will see if i can start enabling these when i finally know i have a stable overclock.

Memory:
Profile 1
Standard (not turbo)
quick (so i can manually set the timings)

Voltage:
I manually set vcore to 1.365 (but i'm gonna see if i can work my way down)
Multi-steps load line or LLC: Set to 4
my ram is designed to run at 1.35 volts but i noticed that it's been running at higher when set to 1.35 in bios so i figured may as well bump that up .05 so my DRAm voltage is now 1.355
CPU PLL: 1.7
everything else on auto

now like i said so far for me this is working with a 1.368ish idle and 1.356 now under load which i believe to be better than my previous set up where i would get vrise when under load

Any thoughts guys are more than welcome!

Cheers!!
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post #96 of 99
Thread Starter 
Ok don't put those settigns. all seemed fine till i turned on BFBC2 got a 124 bsod and then couldn't get through to bios until i switched it off at the mains and restarted sigh*

the saga continues. don't think i'll ever get my Overclock on this bloody board :/
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post #97 of 99
try it with your mem timings on auto (standard), mem turbo disabled, set mem multi manually to the rating (13.3, 16.6, 18.6, whatever).

you could up your vtt to 1.10 or so...mine overvolts, 1.075 gives me 1.10 real.

Or, you could still be a hair shy on vcore, but I don't have that as suspect #1
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post #98 of 99
Thread Starter 
Quote:
Originally Posted by keto View Post
try it with your mem timings on auto (standard), mem turbo disabled, set mem multi manually to the rating (13.3, 16.6, 18.6, whatever).

you could up your vtt to 1.10 or so...mine overvolts, 1.075 gives me 1.10 real.

Or, you could still be a hair shy on vcore, but I don't have that as suspect #1
Hey mate. cheers for replying. Is there any chance you could tell me section for section exactly what you have in your bios. i feel i'm missing something. Should i enable internal PLL overvoltage for just 4.5ghz??

thanks!

Edit: it's just v hard trying to find out what to do in a sea of Asus motherboards
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post #99 of 99
I'm wayyy too lazy to do that, but I did put plenty of my settings back on page 2 of this thread, back when you were ignoring me

To sum up:
C1, EIST - enable
C3/C6 - disable
the 2 settings for amps, I set both to 250
left stock multi @ 33, used the 4 turbo multis to (now 47)
LLC enable, I think you are ok here and for vcore voltage
pll overvolt enabled
pll voltage 1.71, am going to experiment with going lower but don't need higher for sure.
upped vtt to 1.075, it overvolts to 1.10
turned off unused peripherals, GSata, 1394, onboard GPU, serial port
memory - used manual multi rather than auto (13.3, 16.6, 18.6 etc), turned off memory turbo, used auto timings 'Standard' rather than Quick or Expert - I used this as a starting point and am fine tuning memory timings after the fact - they will probably be slower than RAM's rated timings, don't worry about it for now as they affect actual system speed very little and you can fine tune that later.

That's all I can remember off the top of my head, but if you put up YOUR settings I'll let you know what I have different.
Edited by keto - 10/16/11 at 2:02pm
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