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post #1 of 3 (permalink) Old 12-05-2019, 11:10 PM - Thread Starter
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CPU Overclocking

Long time since I've posted.

Looking to really push my 8700k and DDR4 further then what I already have.

https://valid.x86.fr/5kulwt

8700k is at an all-core of 5.2GHz with 1.38v set statically and LLC set to extreme as the Z370 Gaming 7 droops a lot otherwise. The CPU and board are on water under a Monoblock. I'd like to aim for 5.3GHz on two cores and keep the 5.2 on all cores, cooling isn't an issue at all.

DDR4 is Trident Z RGB 3000MHz 16-18-18-38 2T, 526 tRFC stock
Currently at 3400MHz 16-17-17-34 1T, 476 tRFC

As you can see I've been very lucky with the RAM, I'd like to do 3600MHz but I'm having issues with getting this to post.
I've got
System Agent set to 1.050v
VCCIO set to 1.1v

Will pushing those more help with more speed/better RAM clocks and what is the maximum that I can do? Keeping in mind the board is on water

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post #2 of 3 (permalink) Old 12-06-2019, 12:57 PM
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I'd take LLC off extreme before you kill your CPU before I would worry about the RAM.

Read the "Extreme LLC" section at the bottom of this article. LLC is for minimizing excessive vDroop, not removing it. If you have no vDroop then you have overshoot.

Loosening timings to get higher frequency on your RAM is pretty pointless. Leave it at XMP or dive down the rabbit hole (there's a good Intel DDR4 thread here with plenty of information) but you can spend months of stress testing and tweaking for zero meaningful difference. Intel doesn't care about RAM as much as AMD.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
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post #3 of 3 (permalink) Old 12-08-2019, 10:07 PM - Thread Starter
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Quote: Originally Posted by The Pook View Post
I'd take LLC off extreme before you kill your CPU before I would worry about the RAM.

Read the "Extreme LLC" section at the bottom of this article. LLC is for minimizing excessive vDroop, not removing it. If you have no vDroop then you have overshoot.

Loosening timings to get higher frequency on your RAM is pretty pointless. Leave it at XMP or dive down the rabbit hole (there's a good Intel DDR4 thread here with plenty of information) but you can spend months of stress testing and tweaking for zero meaningful difference. Intel doesn't care about RAM as much as AMD.
The DDR4 makes sense, I'm pretty happy with where it is really.

In terms of LLC being on extreme, it was suggested by many people with this board to minimise vdroop. Might go back a notch to high and test..

EDIT: LLC is on Turbo which the Gigabyte guide have suggested, it also suggests a max of 1.35v so I'm pretty happy with 1.38v and Turbo.

Noticed that my uncore was set to "Auto" which was 4.4GHz, just changed it to 4.6GHz for testing.

Eleven Fiffty Five
(24 items)
CPU
Convertible i5 3570k (De-Lidded)
Motherboard
Gigabyte Z77x-D3H
GPU
XFX R9 290 With Koolance Block (1179/1450)
RAM
16GB G-Skill Ares 1866
Hard Drive
Samsung 840 Evo
Hard Drive
Seagate Barracuda 2TB
Optical Drive
1x OEM DVD Drives
Power Supply
Silverstone Strider 850W
Cooling
XSPC RX360
Cooling
Laing D5 + XSPC Res
Cooling
XSPC EX360
Cooling
Heatkiller Rev 3.0
Cooling
Primochill Bloodshed Red Tubing
Cooling
Koolance Fullcover R9 290x Block
Case
Thermaltake Core x71 Tempered Glass Riing Edition
Operating System
Windows 10 Pro x64
Monitor
Asus VEH228H
Monitor
Asus VE228H
Monitor
Aavara TS742 Dual Monitor Stand
Keyboard
Ducky Shine II Cherry Blue RED Backlit Mechanical Keyboard
Mouse
Zowie FK1
Mouse
House of Stealth
Audio
Microlab Solo6c
Other
Logitech C100 Webcam
▲ hide details ▲

Last edited by Matt-Matt; 12-08-2019 at 10:16 PM.
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