8700k overlocking

[Fucur]

Hi guys, this is the first time i overclock a cpu, i have those things:

 

-Asus z370-A

-Intel i7 8700k

-gSkill trident rgb 4x8 3000mhz

-Evga supernova g3 750w

-nxzt kraken x52

 

 

To overlock my cpu choose sync all core and put a 50 on the core ratio.

 

I've managed to play with voltages to reach that. Default wasn't a thing, 1.3 neither. So i put 1.375. 

 

From that i started to go for less and less in order to decrease temps, until i reach 1.335.

 

The oc is stable but i've some problems. When i do cinebench over and over (like 5 times) it crashes, whatever voltages i put.

 

Otherwise i have no stability problem so far. Why? 

I've also oc the ram, default are at 3000, i keep theyr default profile putting them at 3200mhz and is looking stable.

 

My score on 5ghz is 1621, i think is on average, but i've heard of people going at 5ghz at 1.260 on voltage. Am i doing something wrong?
Can i change other settings to improve in overclock?

[Jurrunio]

3 minutes ago, Fucur said:

The oc is stable but i've some problems. When i do cinebench over and over (like 5 times) it crashes, whatever voltages i put.

 

Otherwise i have no stability problem so far. Why? 

because temperature? 120mm AIO and paste under the IHS are both against a good overclock. Also if you followed the half stupid guides of the manufacturers, they would have told you to raise the uncore (ring) frequency which can also cause instability.

 

5 minutes ago, Fucur said:

My score on 5ghz is 1621, i think is on average, but i've heard of people going at 5ghz at 1.260 on voltage. Am i doing something wrong?

they just have a better silicon quality CPU than you do, most likely a better board as well. 1.3v to 1.35v is more of the average for 8700k without delidding.

[boey]

15 minutes ago, Fucur said:

Hi guys, this is the first time i overclock a cpu, i have those things:

 

-Asus z370-A

-Intel i7 8700k

-gSkill trident rgb 4x8 3000mhz

-Evga supernova g3 750w

-nxzt kraken x42

 

 

To overlock my cpu choose sync all core and put a 50 on the core ratio.

 

I've managed to play with voltages to reach that. Default wasn't a thing, 1.3 neither. So i put 1.375. 

 

From that i started to go for less and less in order to decrease temps, until i reach 1.335.

 

The oc is stable but i've some problems. When i do cinebench over and over (like 5 times) it crashes, whatever voltages i put.

 

Otherwise i have no stability problem so far. Why? 

I've also oc the ram, default are at 3000, i keep theyr default profile putting them at 3200mhz and is looking stable.

 

My score on 5ghz is 1621, i think is on average, but i've heard of people going at 5ghz at 1.260 on voltage. Am i doing something wrong?
Can i change other settings to improve in overclock?

Get a better cooler and delid if you have the know-how and the balls to

[Fucur]

Thanks for reply! @Jurrunio

 

Quote

because temperature? 120mm AIO and paste under the IHS are both against a good overclock. Also if you followed the half stupid guides of the manufacturers, they would have told you to raise the uncore (ring) frequency which can also cause instability

no, temperature was 90 on highter voltages but in the mid 70 on 1.335, on full load. I made sure that was right since i was looking for the problem on my own. 
I never heard of those things. As i remember i also changed cache frequency min/max to 45, nothing else.

 

Quote

they just have a better silicon quality CPU than you do, most likely a better board as well. 1.3v to 1.35v is more of the average for 8700k without delidding.

so my cpu is under the average? at 1.3 with 5ghz windows doesn't even boot, at 1.320 can't get even half of the cinebench.

[Fucur]

2 minutes ago, _d0nut said:

Get a better cooler and delid if you have the know-how and the balls to

yeah but if cant manage to run at certain voltages, even when the temp is not a problem how is going to help me lowering them?

[mxk]

8 minutes ago, Fucur said:

so my cpu is under the average? at 1.3 with 5ghz windows doesn't even boot, at 1.320 can't get even half of the cinebench.

You didn't take the hint that the overclock isn't stable or the CPU is getting too hot? You should really be getting the better cooler first.

[Fucur]

19 minutes ago, mxk. said:

You didn't take the hint that the overclock isn't stable or the CPU is getting too hot? You should really be getting the better cooler first.

my cpu is on mid 70 on load, is that too hot? i just wanted do know if there was a way to maintain the 5ghz and lowering voltages. As far as i know 5ghz shouldn't be hard for the 8700k @mxk.

[mxk]

3 minutes ago, Fucur said:

my cpu is on mid 70 on load, is that too hot? i just wanted do know if there was a way to maintain the 5ghz and lowering voltages. As far as i know 5ghz shouldn't be hard for the 8700k

That's not bad for temps. Try undervolting the CPU on stock clock speeds and then overclock again. 

 

I mean 5ghz shouldn't be hard but you could just be a really unlucky person that gets an 8700k that's so bad that it just can't hit 5. I doubt it happens but it's not impossible.

[Fucur]

8 minutes ago, mxk. said:

That's not bad for temps. Try undervolting the CPU on stock clock speeds and then overclock again. 

 

I mean 5ghz shouldn't be hard but you could just be a really unlucky person that gets an 8700k that's so bad that it just can't hit 5. I doubt it happens but it's not impossible.

@mxk. idlk if u read the main thread but for some reason it isn't stable after 4-5 cinebenchs at any voltage @5ghz

 

right now i'm using it at 1.335, going lower isnt stable in windows. at 1.325 i cant finish a single cinebench.

 

As someone else told me that mid 1.3 is an uncommon voltage to reach 5ghz 

[Mister Woof]

1 hour ago, Fucur said:

@mxk. idlk if u read the main thread but for some reason it isn't stable after 4-5 cinebenchs at any voltage @5ghz

 

right now i'm using it at 1.335, going lower isnt stable in windows. at 1.325 i cant finish a single cinebench.

 

As someone else told me that mid 1.3 is an uncommon voltage to reach 5ghz 

It's all a roll of the dice.

 

Something like 85% of 8700ks can get 5ghz.

 

That means 15% can't.

[_Hustler_One_]

My i7 800K also is a silicon loser,

1.17v for 4.7 GHz,

1.25v for 4.8 GHz,

1.31v for 4.9 GHz,

Can't run 5 GHz at any voltage, 1.38v is the highest I've tried but still cant pass any benchmark, always crash.

 

I saw a review that they tested the same CPU on same motherboard as mine, they can reached 5 GHz with only 1.275v, while I can't.. I followed what they did with the overclocking steps, but still can't get what they got with same CPU+Motherboard combo.

So what can I do if my CPU is a complete silicon loser, while the reviewer tested one of the best i7 8700K silicon champ.. 

 

[Fucur]

4 hours ago, Plutosaurus said:

It's all a roll of the dice.

 

Something like 85% of 8700ks can get 5ghz.

 

That means 15% can't.

@Plutosaurus i can, maybe not at the voltages i would like, but i can

[Fucur]

3 hours ago, _Hustler_One_ said:

My i7 800K also is a silicon loser,

1.17v for 4.7 GHz,

1.25v for 4.8 GHz,

1.31v for 4.9 GHz,

Can't run 5 GHz at any voltage, 1.38v is the highest I've tried but still cant pass any benchmark, always crash.

 

I saw a review that they tested the same CPU on same motherboard as mine, they can reached 5 GHz with only 1.275v, while I can't.. I followed what they did with the overclocking steps, but still can't get what they got with same CPU+Motherboard combo.

So what can I do if my CPU is a complete silicon loser, while the reviewer tested one of the best i7 8700K silicon champ.. 

 

@_Hustler_One_ i feel you i'm like in the low/middle as i learn, i can only get 5ghz at 1.335, and is not even stable after 4-5 benchs. Anyway my temps are good, maybe my cpu is better at undervolting than overclocking

[Mister Woof]

7 minutes ago, Fucur said:

@_Hustler_One_ i feel you i'm like in the low/middle as i learn, i can only get 5ghz at 1.335, and is not even stable after 4-5 benchs. Anyway my temps are good, maybe my cpu is better at undervolting than overclocking

You'd be surprised what a delid can gain you.

 

1. It can possibly reduce the amount of voltage you need to get stability due to less power leakage because of lower temperatures.

2. It will definitely reduce load temperatures.

3. It will definitely reduce cooler requirements.

 

I do not regret delidding my CPU at all. Went from unstable at 5ghz 1.38v, to stable at 1.355v. Temperatures dropped tremendously.

[Mick Naughty]

What did you use to watch the temps?

 

I ran prime95 for 30 mins or so but noticed during some of the tests the usage would drop on a worker. 

Had to increase the voltage to keep it from happneing. Think that’s what’s caused issues in games. Though I’ve never ran cinebench. 

[_Hustler_One_]

24 minutes ago, Plutosaurus said:

You'd be surprised what a delid can gain you.

 

1. It can possibly reduce the amount of voltage you need to get stability due to less power leakage because of lower temperatures.

2. It will definitely reduce load temperatures.

3. It will definitely reduce cooler requirements.

 

I do not regret delidding my CPU at all. Went from unstable at 5ghz 1.38v, to stable at 1.355v. Temperatures dropped tremendously.

I'm still waiting for my deliding tool to arrive. Did you use some coating to cover the tiny 4 pins near the CPU die?