Those with 6820HK, anyone stable at OC lvl 3?

sweet......

i use Nvidia inspector to OC the GPU..... but tbh, im on the FHD panel and ive left the GPU stock for the most part, i can get it to 400+ on the mem and only 135 on the core.

(got the prema mod here, have not installed yet)

 

Didn't think you could leave the voltage at 0. I'll try that tonight. Where do you set the BCLK in the bios? I'm assuming you need to use software.

As for nvidia inspector, how do you make it save settings and auto start with windows? The auto start is the reason I like afterburner, set it and forget it. Except afterburner caps your core offset at +135 and cannot go higher.

 

.... i have no clue about OCing these using the BIOS, i only entered the BIOS once to disable Express charge, i only use XTU

the BCLK is also adjustable from within XTU....

i personally wouldn't like to run the NV profiles at windows start up in case a problem develops for whatever reason at those clocks and then cant boot.... could be fine though just something i wouldnt do.

youll need the voltmod created by a guy here on NBR ..... this will unlock the 135mhz cap on the core and voltage control...the GPUs are all locked by default i think.

 

Makes sense. Would you mind listing the exact settings / steps to your current OC settings with XTU? (it's more rhetorical than anything...just my OCD kicking in...)

In the meantime I'll look for that mod...

Thanks!

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http://forum.notebookreview.com/thr...-15-r2-17-r2-and-r3-performance-vbios.780158/

That should be the mod in question.

Edit: Heh, was referring to the wrong mod

I'd also like to know the XTU setting you guys use.

As for gpu overclock starting with windows, I've used afterburner in that manner with many systems in the past. You just need to extensively test your clock settings before letting it start upon boot. At worst the driver just crashes and you resume using windows. Have yet to have gpu overclock spectacularly ruin my windows install to the point it can't be used. But each person's experience varies.

 

not much to it really..... by far the easiest machine ive overclocked as its done through windows.

first establish how far they've overvolted your chip out of the box... at stock settings keep dropping by 10mv on the core voltage 'offset' until your XTU stress tester fails..... then start upping the multipliers, each time adding 10mv until that multi is stable, keep pushing on in this fashion until you reach your threshold...

all chips are different so copying my settings may not work for you....

but for a stable 4.14ghz i simply need..

+10mv on the core offset
+1mhz on the BCLK

leave everything else default, Job done.....

(obviously i have seen at least 30 BSODs before finding where my chip likes to hover).....

however.....

ive since discovered that ... while stock (3.2ghz on all 4) i can tell NO DIFFERENCE while gaming, im still well above the 60fps without the OC!!

so these are the settings im now currently using 24/7...... and its just as fast as ever!!


look...... thats 3.2ghz on less than 1v

(gap in the middle was CPU stress test ending prematurely and being restarted) struggled to reach 60c under full load!!

these things are fxxxxxg Amazing!!

 

Geez -183mV, Dell really went crazy with the voltage. Even -100mV would probably be pretty safe across the board maybe.

 

Thanks!

To change the Base clock....do we need that mod you were talking about?

I'm in XTU now =)

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No..... the base clock has nothing to do with the mod we discussed earlier, should go up 1mhz on the 'reference' clock without any issue

 

I'm looking into the mod to up the reference clock....thanks for the pointers. I'll keep ya updated.

About to hop on a plane..quick flight...hmm maybe I'll just work on it on the plane haha. The 17" R3 takes up the entire tray LOL.

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I dunno how people use laptops on the plane. Sometimes flight attendant says you have to put the tray up. Even if they don't care, the guy in front has their seat leaned back, so you can't even have the screen open far back enough to see what's on it. Only option is to put it on your lap as close to you as possible. Share your secret!

 

Haha...so true. The issue is much alleviated in First Class.

I've been playing with the XTU...

So I've rebooted into BIOS, set everything back to Default and started changing the values in XTU to see what my "base," is...from there doing exactly as @skunk1 has recommended with the trial and error approach.

Will keep yall posted.

 

Yesterday I had a sudden freeze followed by a reboot while playing Civilization 5. The CPU was overclocked as specified in OC Level 3 excluding the way too high voltage settings. The voltages were set like in OC Level 1. I could reproduce the problem with Prime95 28.7. It only occurs when the CPU is clocked to 4.1 GHz and there is high CPU load. Did anyone encounter a similar OC wall with this processor? The strange thing is that I can clock all 4 cores to 4 GHz without a problem and without raising the voltages. But the 4.1 GHz will always result in a freeze in a load scenario regardless of the VCore (I tried up to +100mV on IA).

 

im not seeing that problem..?? the only barrier i hit is heat ..... once the cooling block cant pull the heat off the die quick enough and it passes its tmax, throttle kicks in..... i can do 4.2ghz all day long while gaming but prime will fry it in a few minutes.

though +100mv is alot (compared to what ive been seeing with skylake) but in reality 100mv wouldn't even of touched the sides on some of the skt775 overclocks ive done ..... i dont know enough about these new chips to say what a good voltage ceiling would be.

 

Cinebench R15 runs...

CPU: 892cb
OpenGL: 146.16fps

Just crazy....


Odd that it shows the stock 2.72GHz....anyhow...


Test done @ 4.1GHz...


Let me double check these LOL.....nonetheless....it's steady...


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Heat is no problem when only one core clocks up to 4.1 GHz like in Civilization 5. The Prime95 temperature at 4 GHz is much higher. But as I said, it does not matter if I try 4.1 GHz with stock VCore or with additional 100mV. It still freezes on load. The 4 GHz are perfectly stable with stock voltages.

 

sweet!! ... you forgot the 1mhz on the reference clock, that would of put you at 4.1 not 4.090, not that it matters....

you beat my cinibench score ... mine was 881 i believe at 4.1ghz

 

well... unfortunately the 'silicone lottery' is better to some than others...... your chip may just not clock as well im afraid.

 

has anyone experienced this yet, I go to overclock the CPU in the bios to 4ghz (oc1 customized) and set everything to 40 - but my max cpu speed seems to be 3.6ghz.

It was working fine before i upgraded to the latest bios. anyone seeing this happening?> Is this due to new bios release? Hm

Thanks
Nick

 

I had this problem before. Try one or both things. 1. Flash the bios again and set options. If that still doesn't work 2. Keep bios settings the way you want it and install Intel extreme utility whatever it was called. Have hwmonitor open so you can track to see if your clocks are being applied. Those two worked for me.

 

Cheers man, all sorted.

I had to ultimately reflash the bios , and also choose "reset to defaults", let that reboot once, and then changed values back to 40/40/40/40 and now the OC works fine.