gsan
Load optimized in bios. Save n restart
Enter back into bios
See what voltage ure cpu is running.

Nice. Oc. Btw ure cache is 4.3 on screenshot.
Perfect. Asus boards 1.3v above.. Hmm got issues.


This post has been edited by cstkl1: Jul 15 2014, 09:53 PM

is the cpu stable when overclock to 4.9ghz?
because i want to use in rendering i wonder the overclock performance is stable or no.

1.047v vid shown in BIOS... is it lower mean better oc?
VRIN/VCCIN = cpu input voltage on maximus board?

manage to get same 4.5g prime stable with lower vcore, 1.22v (vdroop 1.32v during load), same cpu uncore.



DC 4790k is oc better than my previous 4670k. but frankly, the temperature still not good although with the improved version of TIM... might going to delid soon

This post has been edited by gsan: Jul 19 2014, 12:34 PM

pretty sure u can do it lower @1.2v
run at manual for cpu and cache voltage

loadline level 8 (maximum)
set 1.2v for ure vcore.
disable SVID
disable CPU spectrum
set cpu VRM frequency 400
set dram VRM frequency 400
disable intel adaptive thermal monitor
enable dynamic storage accelarator ( works with c-states for ssd and u need to have RST installed and ure windows power config hdd sleep set to Never)

just tested just now a 4770k with z87 hero and 16gb 2400 C11 vengeance pro @ 4.5ghz 1.2v.
this is all u need.

the rest all on default is good

for better stabilty and more performance
in dram setting
set ure dram cas write latency based on ure SPD for ure Ram XMP
mrc fast boot disable
MCH full check enable
dram additional training enable
(cons if u shutdown ure computer computer completely. ure comp will restart twice. its to make sure all the ram timings are correct and doesnt always change )

additional
go to RTL
see what ure Channel A rtl is
set initial RTL +5 of that value
save and reboot and see whether u still get the same RTL for A/B and IOL
enter the rtl and iol values u see.

This will make ure ram/imc settings fixed and not flux on multi clocking etc... max performance.


This post has been edited by cstkl1: Jul 19 2014, 04:45 PM

thanks cstkl1 for your oc guide

now doing 4.5g @ 1.21v vid (1.216v & 1.232v vdroop), and temperature is improved alot after delid

btw, my 2x8gb corsair 1866 ram is based hynix MFR chipset, any advise on how to oc it better? cant get it with higher freq

Has anyone tried G3258 and MSI Z97 PC MATE combo?

Could you please share the overclocking results?

The MSI board is the cheapest Z97 6-phase mobo I could find on market tho.

Not sure about Z97 PC Mate but today Intel sent me 4790K & G3258 ES chips.
But don't expect much on their overclock abilities because I believe will be the same like other ES





Better late than never.

I just bought a Core i5 4460 and fairly new to overclocking Intel CPU. My previous experience was only with AMD and that was like 5 years back. All the knowledge a bit rusty.

What is the CPU OC ability ? How far can 4460 go without increasing the voltage ?

did somebody con u. that is not a K.

max oc with bus speed 125 should be easy so

anything else i doubt u can unless u pair with a higher end mobo that can take care of pcie issues.

I'm not sure I understand, but I take it as a no ? What is the difference between K and no K ?

K was design as software overclocking via IMEI, Xtreme is pure clocking. No K/Extreme no multiplier clocking

Olden days we get Multiplier clocking on Extreme and Bus speed on non Extreme. because the walls were not that high. Ppl went for non-extreme due to leakage etc.

Since sandy bridge with the introduction of K, u can clock the multiplier. And with bios enchancement etc the K performs as well as extreme.
Hence the Extreme is only given to the highest platform the X series mobo, currently the 4960X and a bigger level 3 cache.

but with non-K since the thread speed is already fast, most of the cpu's are low clocked.. aka 34 multi with bus speed 100.
So most u can get out of it is 125 bus speed example on a cheap mobo. so around 4.25. But for stability since the pcie bus speed will also increase and to make sure ure sata bus speed doesnt increase.. u get those features etc for bus stability on higher end motherboards.

So its crazy buying a cheap cpu and high end mobo. when a K with lowest series Z87/Z97 is much better. Only benefit to non-k ( except for devil canyon) u get Vt-D

This post has been edited by cstkl1: Jul 25 2014, 06:35 PM

Received some retail Devil's Canyon processors for testing...



2x i7-4790K
L419B540 | vid 1.072v | 5.0GHz not bootable
L419B603 | vid 1.024v | 5.0GHz bootable @ 1.4v



5.0GHz core 1.425v / 4.8GHz cache 1.4v


1x i5-4690K
L419B703 - 5.0GHz not bootable, 4.6GHz 1.4v prime95 27.9 max 86c

This post has been edited by owikh84: Jul 26 2014, 04:28 PM

Testing IMC on air...

Hynix-MFR @ 3250MHz 12-15-15-35-1T

Could be higher and tighter with further tweaking

Samsung @ 2800MHz 9-12-12-25-1T


This post has been edited by owikh84: Jul 26 2014, 02:57 PM

Testing Integrated Memory Controller (IMC) of Intel Malaysia Pentium 20th Anniversary G3258 processor

G.Skill TridentX 2666MHz C10 Samsung RAM: 2800MHz 9-12-12-25-1T



Apacer ARES 3000MHz C12 Hynix-MFR: 3000 11-14-13-35-1T


Could go higher & tighter with further tweaking

Initial test of i7-4790K OC @ 4.6GHz @ 1.216v with Prime95 27.9


4.7GHz @ 1.28v


More to go...

This post has been edited by owikh84: Jul 27 2014, 12:01 PM

pretty good temp from with a aio watercooling, is that h100?

That's Tt 3.0 Extreme.

I am testing it on these coolers

Just got back my i7-4770k from RMA after last time bricking it for putting 1.9V on the cache voltage lol. This RMA CPU is crap at OCing lol...Tried booting Windows at 4.4GHz@1.28V fail immediately lol...1.2V at 4.0GHz also failed at Prime95 Blend. Regretting for frying my Malaysian made i7...Oh well at least they still RMA for me even though I fried it

average i7 4770k is doing 4.2-4.3g

yeah but my would need something like 1.3V++ to reach that