"4790k" What is the best way tweak voltage and load line calabration with the new rog z97 motherboards?

[mr91]

Does anybody have any suggestion on how to set up optimal manual voltage settings on a ROG z97 motherboard when using a 4790k.

What is the stock default voltage for the 4790k?

 

[mr91]

Makes sense, I have the older version of occt and I don't have can't see the vid value however the vcore corresponds with my bios...

 

[mr91]

1.3v? 1.8v? No way.
1.5v straight kills your chip in minutes, at 1.8v you probably just hear some little noise and then have your chip and possibly socket dead.

1.3 is the 'long term use' maximum for haswell, if you can cool it.

And there is no 'stock voltage for any chip. Each needs other amounts of voltage to run. I think the highest ive seen for the 4790k on stock speed was 1.2v, hence why I said between 1.1 and 1.2v.

I've been indeed quite lucky on my chip. I can reach 4.9ghz with 1.38v on a 4 vrm phase motherboard. I'm quite sure it would do 5ghz on 1.45v, but im not going to test that with my cooler and motherboard. It has all just been testing anyway, I run my chip at 4.4ghz on all cores. Anything above that isn't worth it to me, temperature*voltage/performance wise, yet.

About why you started this topic: Yes, a lot of motherboards with non updated bios versions heavily overvolt the 4790k on auto settings. My board on bios F1 would power a full 1.36-1.42v into my chip at stock. After getting F6, it gets me 1.156v under load and a bit more in idle (llc turned one) after speedtests, before going to 0.9-1.1 in idle. Thats a quite good behaviour, except for the high llc take.

So if you're worried about that, just manually set your voltage to the lowest possible that allows to boot and then add another 0.03v to be fully stable. If it boots at 1.15v, give it 1.18v until you install the OS and have time to tweak/flash the bios.

What's your cache ratio and cr voltage running at for that 4.9? 1:1 cpu/cr?

And yeah, stock voltage for mine is 1.06 and 1.20 at load/turbo.

I was thinking that 1.06 to 1.20 would be the range for a chip like this.

" When cpu is set to voltage the voltage would go beyond 1.2 on the motherboards I've tested"

I have a friends with ROG motherboards and I find that they are generally lot more stable than my midrange gigabyte motherboard however I'm aware that there are many other factors such as luck in the cpu lottery and proper case and cooling...

The motherboard has nothing to do with the voltage a cpu needs at a certain speed.
At most, it determines the required voltage on auto settings better than another one.

For example, my mid range board would give my cpu 1.36v with bios version F1.
After updating it to F6, it gives 1.156v. I need 1.154v to be fully stable with xmp enabled.
Now, the best motherboard would possibly give 1.154v instead of 1.156v. Change? Unnoticeable, no differences in anything. The voltage jump is far too small to do anything.

The voltage is needed to ensure stability however if you get a good chip it might require less voltage to be stable and use less power and create less heat.

I'm not sure if the integrated voltage regulator on the Haswell chips is game changer because most of my experience is with ivy bridge...

I'm hoping my auto on my new build however if not I will manually tweak settings until a good bios update comes along...

Finally Gigabyte is providing a decent bios for the z97 boards - In my opinion z97 boards some coming out with good bios because the z97 is very similar to the z87 and the board makers have had a long time to refine and tweak the boards.

My ud3h z77 isn't working very well when everything is set to auto and I've had lots of problems with it, I'm looking forward to switch back to Asus...

 

[DubbleClick]

Most boards overvolting the 4790k is simply caused by the release date discrepancy between the 4790k and the board itself. Most boards were released before the 4790k, so compability was added later on.

 

[mr91]

I'm sure some but I'm not sure if most issues are caused by date discrepancy...

I'm going to do some testing when my board arrives, I should be able to get a decent overclock however I'm aware that the real world difference will not be huge with a few hundred MHz overclock...

 

[mr91]

Most boards overvolting the 4790k is simply caused by the release date discrepancy between the 4790k and the board itself. Most boards were released before the 4790k, so compability was added later on.

Did you notice a difference in your gtx 680 performance when you upgraded your system?

 

[DubbleClick]

Well, I was coming from a q6600@3.0ghz, so I did notice a pretty huge difference. Less so in games, as I don't really run any titles less than 10 years old, but a huge difference in general speed.

 

[mr91]

Well, I was coming from a q6600@3.0ghz, so I did notice a pretty huge difference. Less so in games, as I don't really run any titles less than 10 years old, but a huge difference in general speed.

I suggest you check out some modern titles some of them are really good!

Are you a video editor?

I just looked up your old processor and I noticed that Intel provided a vid voltage range.

Status End of Life
Launch Date Q1'07
Processor Number Q6600
# of Cores 4
Clock Speed 2.4 GHz
L2 Cache 8 MB
FSB Speed 1066 MHz
FSB Parity No
Instruction Set 64-bit
Embedded Options Available

No
Lithography 65 nm
Max TDP 105 W
VID Voltage Range 0.8500V-1.500V
Recommended Customer Price N/A
Datasheet Link

 

[DubbleClick]

I'm mainly programming and video editing, yes.

Not interested in modern games all that much, I gave Guild Wars 2 a shot but it turned out their delopers did an absolutely awful job at managing the game.

As for my q6600, I was running it on 3.0ghz with 1.375v vcore. I tried cranking up vcore to 1.5 and see if I could get 3.2 or 3.33 ghz stable, but it turned out I wouldn't even be able to boot. Bad luck. Whatever, good luck on my 4790k makes up for it.

 

[mr91]

Cool, Sounds like you're are into MMO & RTS games...

I'm more into online fps like bf4 and RPG games like Assassins creed...

I hope my 4790k is good because my 3570k wasn't the greatest chip...

 

[mr91]

My system has been built for a few days and I tried my first overclock today @ 4.8 ghz stable with the Asus optimal settings at 1.301 v. Temps are in the mid 70's and the system is very stable...

I think this chip will go to 5 ghz, I'm very happy with Asus, Intel and Corsair right now! "