Intel God's "Quick & Dirty" OC Guide to 4.4Ghz with Haswell

[DTH]

Maybe their new manufacturing machinery is simply 'wearing in' 😛

 

[johnvonmacz]

What stress testing software are you using?

Prime95 plus regular use (games, Adobe Premiere Pro, etc)

Wow you got a good chip man! Mine is running @ 4.4Ghz w/ 1.115v but the hottest core runs @ 85C when running Small FFT's in PRIME95 the coldest core is 72C. But in AIDA64 the Hottest core only goes to 71C while the coldest goes to 48C

 

[johnvonmacz]

Maybe their new manufacturing machinery is simply 'wearing in' 😀

Have you tried running a PRIME95 Small FFT stress test to make sure it's totally stable? Because in my case, when playing BF3 64 Multiplayer Max settings, My chip only hits 58C which means BF3 doesn't fully stress the CPU but when I run Prime95 Small FFT stress test, it goes to 85C

 

[DTH]

Have run IBT a few times. I have it at a constant clock and I haven't had a reset or blue screen yet. She sits nicely at 22-24 degrees at idle.

 

[johnvonmacz]

Have run IBT a few times. I have it at a constant clock and I haven't had a reset or blue screen yet. She sits nicely at 22-24 degrees at idle.

Dayumm! Congrats man. Your chips a heck of a beast.

 

[Y0GI]

Is it just me or do the latest batches seem to be overclockers?
I mean, ok, I really got a bad one...but still.

My batch is L313B427 - Bought it during August. So far I'm up to 4.7 GHz at 1.280 v. Vcore.

I was stuck for a while at 4.2 and then I increased my memory voltage. My memory is rated at 1.35 v. and I raised it to 1.5 v. BAM!! 4.7 GHz, rock steady on IBT! I'm a happy camper!

Thank you, Intel God! I really appreciate your efforts to make this thread!

Yogi

 

[Jesse Davie]

So I was about to change my Frequency, when I noticed Adjusted CPU Frequency is greyed out. Below it is EIST which is disabled but when enabling it, it brings up Turbo Boost which I can enable or disable.

My motherboard is MSI Z87-G65.

Does anyone have a solution to this?

 

[Y0GI]

So I was about to change my Frequency, when I noticed Adjusted CPU Frequency is greyed out. Below it is EIST which is disabled but when enabling it, it brings up Turbo Boost which I can enable or disable.

My motherboard is MSI Z87-G65.

Does anyone have a solution to this?

Enable Turbo Boost for sure!

Here is a screenshot of my BIOS scrolled all the way down to the end:

Notice the "CPU FEATURES" at the end. Highlight this entry and press enter or left click your mouse on it. That will bring up the Features settings which look like this:

Notice the 4 settings down at the bottom for "Core Ratio Limit". Use these to set your CPU Ratios.

Yogi

 

[Jesse Davie]

So I was about to change my Frequency, when I noticed Adjusted CPU Frequency is greyed out. Below it is EIST which is disabled but when enabling it, it brings up Turbo Boost which I can enable or disable.

My motherboard is MSI Z87-G65.

Does anyone have a solution to this?

Enable Turbo Boost for sure!

Here is a screenshot of my BIOS scrolled all the way down to the end:

Notice the "CPU FEATURES" at the end. Highlight this entry and press enter or left click your mouse on it. That will bring up the Features settings which look like this:

Notice the 4 settings down at the bottom for "Core Ratio Limit". Use these to set your CPU Ratios.

Yogi

Did that just now, currently looking at it, but I don't have any CPU Ratios showing.

Got it, Changed the CPU Ratio on the main page to 44 and the CPU Frequency changed to 4400Mhz. Kind odd how I have to change the Ring Ratio from Auto which is on 3900Mhz to 3500Mhz. You'd think it would increase.

Guessing the VCore is CPU Voltage. New problem has happened though. When changing CPU Ring Voltage to 1.200 it goes red, and I'm guessing its saying its high.
Nor can I find Vrin. I have SA, Analog, Digital, DRAM, PCH 1.05, PCH 1.5 and VCCIN voltage.

 

[Y0GI]

So I was about to change my Frequency, when I noticed Adjusted CPU Frequency is greyed out. Below it is EIST which is disabled but when enabling it, it brings up Turbo Boost which I can enable or disable.

My motherboard is MSI Z87-G65.

Does anyone have a solution to this?

Enable Turbo Boost for sure!

Here is a screenshot of my BIOS scrolled all the way down to the end:

Notice the "CPU FEATURES" at the end. Highlight this entry and press enter or left click your mouse on it. That will bring up the Features settings which look like this:

Notice the 4 settings down at the bottom for "Core Ratio Limit". Use these to set your CPU Ratios.

Yogi

Did that just now, currently looking at it, but I don't have any CPU Ratios showing.

Got it, Changed the CPU Ratio on the main page to 44 and the CPU Frequency changed to 4400Mhz. Kind odd how I have to change the Ring Ratio from Auto which is on 3900Mhz to 3500Mhz. You'd think it would increase.

Ideally, Ring Ratio should be increased to increase performance, and there is a slight performance hit due to decreasing Ring Ratio. However, the slight hit is more than compensated for by increasing the overall CPU speed.

Guessing the VCore is CPU Voltage. New problem has happened though. When changing CPU Ring Voltage to 1.200 it goes red, and I'm guessing its saying its high.
Nor can I find Vrin. I have SA, Analog, Digital, DRAM, PCH 1.05, PCH 1.5 and VCCIN voltage.

If the red 1.2 volt reading bothers you, set it to 1.980 v.

Yes, Vcore is CPU voltage, and VCCIN = VRIN.

Yogi

 

[Jesse Davie]

So I was about to change my Frequency, when I noticed Adjusted CPU Frequency is greyed out. Below it is EIST which is disabled but when enabling it, it brings up Turbo Boost which I can enable or disable.

My motherboard is MSI Z87-G65.

Does anyone have a solution to this?

Enable Turbo Boost for sure!

Here is a screenshot of my BIOS scrolled all the way down to the end:

Notice the "CPU FEATURES" at the end. Highlight this entry and press enter or left click your mouse on it. That will bring up the Features settings which look like this:

Notice the 4 settings down at the bottom for "Core Ratio Limit". Use these to set your CPU Ratios.

Yogi

Did that just now, currently looking at it, but I don't have any CPU Ratios showing.

Got it, Changed the CPU Ratio on the main page to 44 and the CPU Frequency changed to 4400Mhz. Kind odd how I have to change the Ring Ratio from Auto which is on 3900Mhz to 3500Mhz. You'd think it would increase.

Ideally, Ring Ratio should be increased to increase performance, and there is a slight performance hit due to decreasing Ring Ratio. However, the slight hit is more than compensated for by increasing the overall CPU speed.

Guessing the VCore is CPU Voltage. New problem has happened though. When changing CPU Ring Voltage to 1.200 it goes red, and I'm guessing its saying its high.
Nor can I find Vrin. I have SA, Analog, Digital, DRAM, PCH 1.05, PCH 1.5 and VCCIN voltage.

If the red 1.2 volt reading bothers you, set it to 1.980 v.

Yes, Vcore is CPU voltage, and VCCIN = VRIN.

Yogi

Got the overclock working. My temps are around 36-40 at 0% load, most of the time sticking to 36. About to fire up Prime 95 and do a short test.

 

[Jesse Davie]

Well fired it up, the max temp I've gotten was 82c for 1 second. The cores mainly stick between. 71-76c. But right now they are hitting 82 and I just got BSOD, then again my fans had been on the lowest speed setting. I may have to reapply the thermal paste since I remember putting it on a bit off, but I wont do that until the GPU bock gets back in stock and arrives. Guess I'll drop it down to 4.2. I guess I'll have to drop 0.2 of of the voltages of aswell.

 

[Y0GI]

Well fired it up, the max temp I've gotten was 82c for 1 second. The cores mainly stick between. 71-76c. But right now they are hitting 82 and I just got BSOD, then again my fans had been on the lowest speed setting. I may have to reapply the thermal paste since I remember putting it on a bit off, but I wont do that until the GPU bock gets back in stock and arrives. Guess I'll drop it down to 4.2. I guess I'll have to draw 0.2 of of the voltages.

If you're through OC stress testing, just change your CPU voltage control method from "Override" to "Adaptive". Adaptive works fine for day to day use and allows the CPU to drop the voltage down during periods of Idle/low demand.

Yogi

 

[Jesse Davie]

Well fired it up, the max temp I've gotten was 82c for 1 second. The cores mainly stick between. 71-76c. But right now they are hitting 82 and I just got BSOD, then again my fans had been on the lowest speed setting. I may have to reapply the thermal paste since I remember putting it on a bit off, but I wont do that until the GPU bock gets back in stock and arrives. Guess I'll drop it down to 4.2. I guess I'll have to draw 0.2 of of the voltages.

If you're through OC stress testing, just change your CPU voltage control method from "Override" to "Adaptive". Adaptive works fine for day to day use and allows the CPU to drop the voltage down during periods of Idle/low demand.

Yogi

Gonna drop it back down to stock levels. It just crashed opening Prime 95, while the CPU bounced up to 50c. I'll try again once my 770 water block arrives since I'll have to drain the loop, which gives me a chance to remove the thermal paste on the CPU and chuck a new layer on.

 

[MapleSyrup]

Hi, this is my first time overclocking and so I have only touched a few settings in the BIOS. I've managed to get a stable 4.4ghz OC. on my i5 4670k while at 1.200v tested 10 times on very high with IBT. This on the Asrock Z87 extreme 4 and a Corsair H80i for cooling (max temp. is 78C). The only settings I've changed are the multiplier and cache multiplier (44 and 43) and the cpu voltage and cache voltage (1.2v and 1.15v). Both those voltages are on override mode which i believe will fix the voltages as I've set them. If I'm not stress testing will it be okay to set them both to adaptive mode? I've heard that it can sometimes over volt when stress testing but will it also over volt when CPU is under heavy load such as playing modern high-end games etc.?

Thanks

 

[Y0GI]

Hi, this is my first time overclocking and so I have only touched a few settings in the BIOS. I've managed to get a stable 4.4ghz OC. on my i5 4670k while at 1.200v tested 10 times on very high with IBT. This on the Asrock Z87 extreme 4 and a Corsair H80i for cooling (max temp. is 78C). The only settings I've changed are the multiplier and cache multiplier (44 and 43) and the cpu voltage and cache voltage (1.2v and 1.15v). Both those voltages are on override mode which i believe will fix the voltages as I've set them. If I'm not stress testing will it be okay to set them both to adaptive mode? I've heard that it can sometimes over volt when stress testing but will it also over volt when CPU is under heavy load such as playing modern high-end games etc.?

Thanks

Your temps and volts look very good!

I use Adaptive for day-to-day usage and I don't see any problems but I'm not a gamer. You could try Adaptive and keep an eye on your volts and temps with CPU-Z and Core Temp.

Yogi

 

[Amin Sabet]

What stress testing software are you using?

Prime95 plus regular use (games, Adobe Premiere Pro, etc)

Wow you got a good chip man! Mine is running @ 4.4Ghz w/ 1.115v but the hottest core runs @ 85C when running Small FFT's in PRIME95 the coldest core is 72C. But in AIDA64 the Hottest core only goes to 71C while the coldest goes to 48C

I was running Blend in PRIME95, not Small FFTs. Small FFTs brings my temps up higher than yours, but I don't see the point in running small FFTs which stresses my CPU more than anything I would ever use my CPU for.

 

[ithshaam]

hiya guys, ive overclocked my i5 4670k to 4.2 and voltage is set to 1.250. the only two settings i changed were cpu ratio and cpu voltage. ran prime 95 for about 2hours and got a blue screen n restarted. i was told if i increase my cpu ring voltage this would help in stability, it was orginaly srt on auto (1.144), ive increased it by 1.010, have i done this right. im running prime 95 right now to see what happenes. also cpu voltage and cpu ring voltage are both set to override mode, is that alright. do i need to edit any other setting, the motherboard im using is a msi z87 G45.


thanks in advance guys

 

[ithshaam]

i juts got a blue screen again so ive upped the cpu ring ratio by another 0.010 and ive read on the net the that the ring ratio should be just lower then the cpu core ratio. ive set the ring ratio to 41 abd core ratio is already set to 42. running prime 95 again, wish me luck.

thanks again in advance guys

 

[Jonathan Cave]

Thanks for this i've got a stable system @ 4.4ghz via:

CPU Ratio = 44
Ring Ratio = 35
CPU Core Voltage 1.29 (-0.010)
CPU Core Voltage= fixed
CPU Ring Voltage = 1.24 (-0.010)
VCCIN Voltage = 1.9 (-0.2)

running @ 73 degree's @ 10 x prime95 tests and 25 deg at idle.

Here's my IBT test results, obviously IBT is more brutal hence the temps, i don't understand why my gflops & results are lower and what this means? is it just that you have a 4770k and i have a 4670k?

if i drop to 1.28 core and 1.23 ring i get the old x124 BSOD

still pretty hot?

what do you suggest i do from here?

 

[Padzki]

@Intel God. I followed your instructions on the first post. I get BSOD on boot screen. Highest I can reach is 4.2Ghz. I have 4670k on Mobo: Gigabyte Z87X-UD3h, Corsair H80i CPU cooler, Corsair Vengeance 1600 8GB RAM.

Any suggestions?

 

[Jonathan Cave]

@Intel God. I followed your instructions on the first post. I get BSOD on boot screen. Highest I can reach is 4.2Ghz. I have 4670k on Mobo: Gigabyte Z87X-UD3h, Corsair H80i CPU cooler, Corsair Vengeance 1600 8GB RAM.

Any suggestions?

What voltage are you using? i had to use 1.3 vcore and 1.250 for vring. with VCCIN of 2.1 to get 4.4

 

[Padzki]

@Jonathan, wouldn't 1.3v generate too much heat?

 

[Jonathan Cave]

@Jonathan, wouldn't 1.3v generate too much heat?

I can only comment on my observations of running 1.3v using a Evo 212 HSF - 70 - 75 Deg which is fine.

 

[md1032]

Reporting in.

Equipment:

Asrock Z87 Extreme4
i5-4670k
Noctua NH-D14

Settings:

CPU Multiplier: 44x
CPU Voltage: 1.26 V
CPU cache multiplier: 38x
CPU cache voltage: 1.20 V

I haven't messed with the cache too much yet, not sure it's even worth it. The max I've hit with IBT running Very High is 95°C and normal gaming doesn't even get anywhere near that, so I'm happy. I am considering delidding down the road and putting my own thermal compound in place of Intel's. We'll see. For now my system is flying, but reaching 4.4 Ghz. was harder than I imagined. I could actually run 4.4 Ghz. for a long time with a setting of only 1.23 V, but I would very occasionally BSOD all the way to 1.25 V where 1.26V has yet to BSOD at all, so that is where I am stable. In fact, I found that I could safely run 4.5 Ghz. with 1.30 V (admittedly the temps are a bit out of control, near the limiter in this range) but again, I'd have a very occasional BSOD. So be it.