If anybody need,here is latest ASRock Z87 BIOS:

Z87M OC Formula - BIOS 1.54
Z87MOCF154

Z87 OC Formula - BIOS 1.82
Z87OCF182

Z87 Extreme 6 - BIOS 2.10H
http://www.mediafire.com/?u3r931hb3ndlck4

Z87 Extreme 4 - BIOS 2.32B
http://www.mediafire.com/?xqxmr2zk0yibzq3

Fix: Change the CPU multi in the OC i5 4670K

^if so, the chances of frying the cpu will be lower as what you state?
useful/safety measure for newb like me.

This post has been edited by sai86: Nov 1 2013, 05:13 PM

Seems alright to me
GFlops is consistent and Residual(Normal) value match up
I would call this stable

After clocking down and reducing voltage. Ring ratio is at 4ghz.

Well done. Whats your mobo and cooler mate?
This is what we call it a stable and successful overclock.
Not that previous one which was throttled and underperformed like stock clock. The GFlops is a little off at the first loop could be due to background apps running at the back.
Good job Naraw.

This post has been edited by owikh84: Nov 5 2013, 10:21 AM

Thanks Sifu! I'm using msi z87-gd65 and cm hyper 212 evo. My cooler is the problem now.. can't oc higher due to high temps. Need to get a better cooler.

It is normal for low/mid end air cooler. Upgrade to higher end or watercooling for better OC.
Btw, buyer list updated. Welcome to the club.

Might get aio water cooler. Thanks!
Actually I bought it in May but just got the time to oc. Haha..

Quick question. Using asrock z87pro3. I set my ratio at 42. But cache ratio at 38. Vcore at 1.10v override. Is there any significant speed improve by setting the cache ratio to the same as core ratio?

Putting cache ratio/ uncore equal to core multi will give you a slight improvement of performance but will give impact on stability.
ASUS recommended uncore to stay at x1 to x3 lower than core multi. I myself usually will leave it auto.

thanks owi. currently trying 44 on both ratio at 1.2v. hopefully it pass some stressing.

EDITED: yeah, not stable. crashes my system. forced to restart by turning off power. trying cache at 41 now.

This post has been edited by joeboto: Nov 10 2013, 09:44 AM

wta, will there be oc ability/stability problem if i use 2 different type of ram?

G.skill RipjawsX (F3-12800CL9D-8GBXM) Blue color @ 1.35v SPD 1.5v XM
G.skill RipjawsX (F3-12800CL9D-8GBXL) Red color @ 1.5v SPD 1.5v XL

as i'm currently using the XM (blue) version and would like to add another 8gb red, but i notice the different in Tested Voltage.

Advice is highly appreciate on this matter.

Z87 OC Formula - BIOS
tks broo....

CPU-Z 1.67.1 (x32/64)

ftp://ftp.cpuid.com/cpu-z/cpu-z_1.67-setup-en.exe
ftp://ftp.cpuid.com/cpu-z/cpu-z_1.67-en.zip

CPUz-OC 1.67.1

ftp://ftp.cpuid.com/cpu-z/cpu-z_1.67-oc-setup-en.exe

G1.-CPUz 1.67.1

ftp://ftp.cpuid.com/cpu-z/cpu-z_1.67-g1-setup-en.exe

Asus ROG CPU-Z 1.67.1

ftp://ftp.cpuid.com/cpu-z/cpu-z_1.67-rog-setup-en.exe

Improved support of Intel Silvermont (Bay Trail)
New validation

http://www.cpuid.com/softwares/cpu-z/versions-history.html

can i overclock my i7-4770k on my msi z87-g41 up to 4.6ghz? currently running at 4.3ghz, wont get higher than that without crashing

any 4770K could do 4.6. Try upping the vCore.
Don't forget to check the temperature via RealTemp. < 100C.

what the vcore voltage should be?where i can find it?
my mobo only support max 1.3v for cpu voltage

goin to upgrade next year~~

Depends on the chip. My 4770K requires 1.4625v min for 4.6.
so i think your mobo/ bios is the limiting factor here.

done some exploring here.
can get my 4770k to 4.6ghz thru msi command centre thru windows
changed the cpu voltage to 1.45 v, but the written number turns red
eventually crash after few minutes

before that, contacted msi support, they said my msi-z87 g41 only support 1.3v

so did my steps earlier on the msi command centre would damage the mobo?