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i7 8700k overclock results and settings - Page 47

post #461 of 692
@scracy - No probs using the 15mins test, error free and 88c max core (well I was also trying to watch TV on the PC at the same time and that did not work well while stress testing smile.gif ). Will do 8hrs overnight.
post #462 of 692
Quote:
Originally Posted by jmone View Post

@scracy - No probs using the 15mins test, error free and 88c max core (well I was also trying to watch TV on the PC at the same time and that did not work well while stress testing smile.gif ). Will do 8hrs overnight.
Sounds good, good luck thumb.gif
post #463 of 692
Quote:
Originally Posted by scracy View Post

Realbench or OCCT are a much better way to go smile.gif

What about Linux? redface.gif
stress? stress-ng? something else?
post #464 of 692
Quote:
Originally Posted by moustang View Post

That depends on what you consider a "benefit" to be.

Setting it to 1 will result in the actual voltage delivered to the CPU at all times to be closer to your settings. There will be very little change in voltage up or down as CPU load changes.


You may consider this to be desirable, but IMO that's personal preference. It will deliver more voltage than necessary when the CPU is idle or close to idle. It will limit voltage when the CPU is under full load. It can reduce system stability if your own voltage settings are slightly too low for full load situations.

Some people want absolute total control over voltage settings. Personally I'm willing to allow for a bit more fluctuation. As long as the system is stable, the temps are good, and the voltage is at a reasonable level under full load I'm perfectly happy to let the board adjust the voltage up and down as it sees fit for the situation. But I'm not one who is trying to find the absolute limits of the CPU either. I'm looking for a rock solid 24/7 overclock that will last for several years, so I'm making settings that are a bit on the conservative side in a lot of cases. If you're wanting to push the CPU to the limits a setting of 1 can help you find those limits by giving a more precise voltage delivery at all times.

So in short: If you want absolute voltage control a setting of 1 is preferred.
If you're willing to allow the motherboard to adjust the voltage up and down a little, then don't mess with it.

Which setting is better is entirely personal opinion, and dependent on what you're wanting to achieve.

https://www.msi.com/blog/why-llc-is-your-friend-when-overclocking

you dont know what your talking about. It cant reduce stability. It can only increase it with a possibility to reduce CPU life if you are overvolting towards the limits and increase heat.

Also you should test the top 2 or 3 LLCs to make sure its not overvolting past desired settings. Sometimes LLC 1 can lead to higher voltages than you set in BIOS. As in BIOS is 1.3v but LLC 1 produces 1.34v

Also as the article states...all motherboards are different between manufactures and models...which makes this even more annoying.

anandtech has some reviews showing the weirdness of LLC.

I personally dont understand how a MB cant simple provide 100% accurate voltages. Some overclockers resort to using external voltage meters because they cant trust MB/software/CPU readings :/
Edited by HOPELESSLYFAITH - 11/11/17 at 3:19am
post #465 of 692
Does anyone know to find IA AC/DC line settings in Asrock z370 bios
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Kaby Lake  Asrock Z170 OC Formula Gigabyte GTX1070 mini 
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post #466 of 692
Quote:
Originally Posted by scracy View Post


Thats why I questioned stable like hell, 5.1Ghz@1.28V would be top 1% I would think smile.gif

Batch no: L731c402 i think thats the best one. Ran 2 hour of stress test while watching movie everything is cool.

When you google this batch on google, there are some german forums with the users resulting 1.26 5ghz, i especially wanted this batch and im lucky they had in stock.
Edited by frozensoul - 11/11/17 at 5:42am
post #467 of 692
Quote:
Originally Posted by scracy View Post

OCCT minimum 1 hour, if you think you are stable thats up to you, pretty clear to me it is not even close to stable if you crash in OCCT in 5 minutes. Anyway your P.C and your choice smile.gif

They i think i found my problem

I was using my memory kit as cl 15 3600mhz 15 15 15 35 + another 2 setting 50 trfc 512. It was crashing when cpu 1.265 vcore with memory(when i do occt test after 5min crash)

i just set auto memory settings

30min occt pass. I dont have time for more atm but atleast no fail without memory overclocking

is this good sign?
post #468 of 692
1.280v without memory overclocking no fail occt. 3600cl16 (i was using as cl15)

ac/dc loadline 1 power draw 91watt If i have time i will do it as ac/dc 0
post #469 of 692
New to overclocking so just want to make sure I'm not making a mistake...

I have a fixed voltage on my 8700k cpu of 1.32 which seems to be staying fine in HWInfo. My VID though reached a maximum of 1.434V. Is this okay? If I understand, VID is not an actual voltage being supplied, it's just what the CPU "requests" or thinks it wants? Just want to make sure my OC is going to remain safe.
post #470 of 692
Strix Z370F - 8700K
Antec Mercury 240 (AIO Water)
[Trident Z RGB] F4-3200C16D-16GTZR 1.35 Volt

My test are base on handbrake x265 enconding of 5/6 Hours ....

Settings in BIOS are...
MCE Enable
Ai Overclock Tuner: [Manual]
SVID Behavior: [Best-Case Scenario]
CPU Core Ratio: [Per Core]
Ratio: (x50 1 - x49 2 - x48 3&4&5&6)
CPU Core/Cache Voltage: [Adaptive Mode]
Additional Turbo mode CPU core voltage: [1.300]
Offset voltage: [0.004]
IA AC Load Line: [0.01]

Using HWinfo64 medium results are: CPU Temp 61° - Power 101W - Vcore 1,199 - CoreVid 1,314 for 5/6 hours (4 times) ...

I'm trying to go higher but ...
If i enable XMP handbrake crash after some minutes ...
I also try to change Core Ratio to (x50 1 - x49 2&3&4&5&6) and Additional Turbo mode CPU core voltage: to [1.340] with NO XMP
But Handbrake crash ..

Is usefull to set also LLC ?
Which is the max safe voltage for the core and for 6/7 hours of working ???
Ho can I check what is the problem for handbrake crash ?

Thx
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