cpu OC voltage, wtf?

[Cyracus]

I can get my system rock solid stable and fine with llc on low settings, but without it even giving it a positive offset where it gets higher voltage I get crashes in stability testing. System specs below in my sig, cpu is sucking up to 1.328v read through cpu-z and hwmonitor. I don't understand and I'd resigned to just throwing my f%^&s to the wind, but I've had a couple shots and been watching tech videos on youtube and I'm ashamed of my inability to succeed here... Any help or insight would be appreciated 

[Howitz]

[Cyracus]

@Howitz good to know Jayz not the only dickhole in the tech community 

[faziten]

Use fixed voltage to find your max OC.

everithing else in Auto. Then start messing around with other crap. (like RAM speed, LLC, uncore, etc).

[Cyracus]

4 hours ago, faziten said:

Use fixed voltage to find your max OC.

everithing else in Auto. Then start messing around with other crap. (like RAM speed, LLC, uncore, etc).

already done did that, but I'm trying to get my cpu to drop the voltage down when not under load, serious overclockers seem to manage this and I can't figure out what's wrong on my end, no OC guide seems to give a voltage tweaking for dummies guide which I so obviously need

[MrMarriarty]

3 minutes ago, Cyracus said:

already done did that, but I'm trying to get my cpu to drop the voltage down when not under load, serious overclockers seem to manage this and I can't figure out what's wrong on my end, no OC guide seems to give a voltage tweaking for dummies guide which I so obviously need

ok so what works for someone may not work for someone else

 

Step 1 what clock speed to you want to achieve?

[Cyracus]

13 minutes ago, MrMarriarty said:

Step 1 what clock speed to you want to achieve?

I want to keep my 4.8 ghz OC

[Spudbilly]

33 minutes ago, Cyracus said:

I want to keep my 4.8 ghz OC

Have you disabled or enabled the various power states such as c-states. When i had a devils canyon cpu i had disabled all cstates etc...did my max oc...then after reenabled a handle full of them so that when the system was idling it would down volt and underclock itself to save power and thermals. 

[Spudbilly]

Also ehat psu do you have...llc....load line calibration is for stabalizing voltages such as your 12v eps...etc....so if your system under load causes your 12v to droop lower than needed then you have to have llc on to keep that voltage stable. Your llc should not interfere with cstates for power saving functions

[Cyracus]

3 minutes ago, Spudbilly said:

Have you disabled or enabled the various power states such as c-states. When i had a devils canyon cpu i had disabled all cstates etc...did my max oc...then after reenabled a handle full of them so that when the system was idling it would down volt and underclock itself to save power and thermals. 

I've left them alone, I guess I'll try fiddling with them a little and see what happens

 

1 minute ago, Spudbilly said:

Also ehat psu do you have...Your llc should not interfere with cstates for power saving functions

evga supernova b2 850w, have voltage set to auto and it stays at 1.328v always, even when idle, if I turn off llc the voltage drops down but when the load kicks in it'll derp, generally not a bsod but blender crashes, realbench hits a brick wall.

[Spudbilly]

2 minutes ago, Cyracus said:

I've left them alone, I guess I'll try fiddling with them a little and see what happens

 

evga supernova b2 850w, have voltage set to auto and it stays at 1.328v always, even when idle, if I turn off llc the voltage drops down but when the load kicks in it'll derp, generally not a bsod but blender crashes, realbench hits a brick wall.

Ok...so you need to do a manual oc. No auto...proper ocerclocking is time consuming and methodical....

 

1. Set everything to default. 

2. Disable all power state functions. And set memory speeds to desired speed

3. Set to manual and set voltage to default voltage for default speed of core

4. Increase multiplier for cpu 5 and a time and test each one for 15 min or until instability. 

5. If stable for 15....then increase multi by 1 or 2 and test each increment until unstable. Once you hit instability...then you add a little bit of voltage im small increments until you get 15 min stability. Repeat until no matter how much voltage you give it...there is no stability. 

6. Keep each step you take recorded so that you know where there was stability or instability. 

7. Once you think you havr found the sweet spot you can full on stress test for several hours. 

8. If you think your oc is too low...try to decrease memory speed instead of voltage or multi changes. 

9. Once you have 6+hrs stability...then you can go back in and enable cstates etc...

10. Overclock.net is a great resource with detail info about processors and cpu architectures and overclock guides. 

 

The trick is to take your time and be scientifically methodical in your oc. Otherwise your gonna end up where you are wondering what the heck is going on. 

[Cyracus]

25 minutes ago, Spudbilly said:

so you need to do a manual oc. No auto...proper ocerclocking

I did, I became thermally limited at 4.8ghz with the voltages it requires, I'm after all that stuff and trying to get power saving stuff turned back on but I can't get it to work properly. left the voltage set to auto with llc because I just got tired and gave up mid fiddling, it's not pulling much different voltage than when I had it set manually anyway so meh. I was trying to work out voltage draw under auto so I could work out the offset I needed but... well that didn't work out for me.... haven't found voltage tweaking in overclock guides that make a lick of sense to me, so yeah...

[Spudbilly]

2 hours ago, Cyracus said:

I did, I became thermally limited at 4.8ghz with the voltages it requires, I'm after all that stuff and trying to get power saving stuff turned back on but I can't get it to work properly. left the voltage set to auto with llc because I just got tired and gave up mid fiddling, it's not pulling much different voltage than when I had it set manually anyway so meh. I was trying to work out voltage draw under auto so I could work out the offset I needed but... well that didn't work out for me.... haven't found voltage tweaking in overclock guides that make a lick of sense to me, so yeah...

I reread your original post and it seems that you just need to go back to manual voltage and gice it the llc it needs. There is no harm in doing that. 

 

This is a great guide recommended to me by good overclockers on that website. 

 

http://www.overclock.net/t/1621347/kaby-lake-overclocking-guide-with-statistics

 

Gl mate

[faziten]

6 hours ago, Cyracus said:

already done did that, but I'm trying to get my cpu to drop the voltage down when not under load, serious overclockers seem to manage this and I can't figure out what's wrong on my end, no OC guide seems to give a voltage tweaking for dummies guide which I so obviously need

I shall recommend you to research how LLC levels affect voltage curve in your particular motherboard. This is important so you dont droop below stable nor overshoot past safe range.

If you could find your max stable OC with fixed voltage but ended up with software locks when tried with adaptive/offset it's because of transient loads. This mean VRM tweaking and knowing how your LLC affects the V curve. This is what you should probably tweak to have stable OC.

Since you are already limited by thermals, results may be a little lower than expected, once the cpu starts leeking heat every step you increase the voltage just adds more temperature leakage instead of stability.

[Cyracus]

5 hours ago, faziten said:

research how LLC levels affect voltage curve in your particular motherboard

Know of anywhere to to find this kind of info, Doing my best to find anything and finding a lot of "LLC is designed to combat vdroop" but finding actual data for any board let alone the one I have seems impossible. I have found where it's stable with manually set voltage, and at this point I'm making some progress with adaptive voltage, but... technical data for llc would probably help me a lot right now  

[faziten]

5 minutes ago, Cyracus said:

Know of anywhere to to find this kind of info, Doing my best to find anything and finding a lot of "LLC is designed to combat vdroop" but finding actual data for any board let alone the one I have seems impossible. I have found where it's stable with manually set voltage, and at this point I'm making some progress with adaptive voltage, but... technical data for llc would probably help me a lot right now  

Not general information. LLC will produce diferent results with different VRMs in place. So you have to search for your particular motherboard if anyone tested how LLC affected their voltage readings.

 

A quick google search got this image from Anandtech

 

 

Analyze the data, and configure your CPU based on YOUR own tests, you cant expect to replicate internet information dialing in numbers.

 

https://www.tweaktown.com/reviews/7506/asus-z170-intel-motherboard-review/index7.html

 

Keep googling and testing, it takes time.

[Cyracus]

10 hours ago, faziten said:

Keep googling

My googling abilities suck, but thanks for finding that for me, gives me a much better idea of what's going on under the hood