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Need help. New guy trying to OC a 4770k. - Page 2

post #11 of 15
The best way to overclock on asus boards on haswell...is to go into bios advanced mode...change to manual then you can select LC PLL as well the correct bclk which is 100 you can also leave auto.

Leave your ram at auto 1333 until you find what your cpu can do then bump the ram back up etc.


You want to use adaptive for 24/7 so the cpu can idle when not used...also keep in mind not to run synthetic benchmarks with adaptrive as it will raise the vcore automatically as tis feature is built in on most setups for AVX insyructions.

You want to set the desired vcore in the additional turbo box and leave the offset to auto.

You can do the same for the uncore ratio as well but leave auto until you find the cpu clock you desire. keep in mind uncore above 4.3ghz basically does nothing.

you then need to increase system agent voltage if your ram is above 1866mhz esp if your in the 2400+ range...usually + 0.150-0.350v is within safe range.

also the IO voltage if needed by + 0.150v

then increase the inial input voltage and eventual input voltage I always use 2.0v and eventual at 1.98v for anything above 4.7ghz

then go into Digiatal power controls and change load line cal to level 8 first option and current capabilitys to exterem and 140%
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post #12 of 15
Thread Starter 
I'm kinda stuck at 4.3Ghz right now. Have set Vcore to 1.22. Cache ratio (uncore) to stock at 35 per the guide. Temps seem good, in fact, better since I have enabled Cstates. Idling about 27C, normal loads such as gaming etc pushes it to 49-50C, and max temps with prime95 around 64-66C.

I would like to hit 4.4-4.5, but so far I have been unsuccessful. I've bumped Vcore as high as 1.25 and still can't get stability at a multiplier of 44. Do you guys think I need to go higher or is there something else I should tweak first (i.e. eventual input voltage, vrin, system agent voltage)?

I also have a question regarding Step 6 of Dark's guide. I says " set Cstates to on to C7). OK it took me a while to find the Cstates in the BIOS, and I did switch them to on. This has helped temps as it seems to allow the voltage to drop when not under load, but I don't understand the second part of the sentence (the to C7 part). When I enabled the Cstates it then listed C1-C7 and their respective settings. Do I need to alter those? Make them all C7? What exactly does it mean to set Cstates on to C7?

Sorry if this is basic stuff, still a pretty big learning curve for me.
post #13 of 15
Wish there could be some kind template setting for the I7 4770k and asus motherboard
post #14 of 15
I'd say enable ALL the C-States, they all help with getting lower voltages and temperatures for the CPU. And yes, I'm pretty sure you need to go higher for the CPU Voltages, keep it under 90°C for benching and 85°C for 24/7 use and you'll be just fine.

On a 4.5 GHz, I'd say try going up with notches, just don't go above 1.4v just to be safe, temperatures will probably be too high if you go over, depending on what cooling you have. Not sure about the other settings such as ring or whatever they're called.

I'm very sure that upping the VCore voltage up by a few notches will improve the stability and make it successful to boot at 4.5 GHz.
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post #15 of 15
Quote:
Originally Posted by benjamen50 View Post

I'd say enable ALL the C-States, they all help with getting lower voltages and temperatures for the CPU. And yes, I'm pretty sure you need to go higher for the CPU Voltages, keep it under 90°C for benching and 85°C for 24/7 use and you'll be just fine.

On a 4.5 GHz, I'd say try going up with notches, just don't go above 1.4v just to be safe, temperatures will probably be too high if you go over, depending on what cooling you have. Not sure about the other settings such as ring or whatever they're called.

I'm very sure that upping the VCore voltage up by a few notches will improve the stability and make it successful to boot at 4.5 GHz.

pretty much hes right its a lottery when it comes to the chips overclocking..the average 4.5ghz oc is prly around 1.3v some can do it at 1.2v some need almost 1.4v...so you gte the idea currently im at 4.8ghz 1.43v on a custom loop but keep in mind im also delided so this drops temps even more.
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i7 4770k 4.9 MSI Mpower z87 Nvidia GTX 770 -SLI- Gskill 8GB 2400Mhz 
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2x Samsung 840 Pro SSD's 2x Seagate 2TB LG Blue Ray Custom loop 360/240 Rad EK Block 
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Win 8.1 64b Qnix 2560x1440 96hz Corsair k70 Corsair AX860 
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