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9900k OCing Issue and z370 Board

 
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post #1 of 5 (permalink) Old 11-17-2018, 05:00 PM - Thread Starter
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9900k OCing Issue and z370 Board

I've been having a lot of issues overclocking my 9900k. I can't even get stable at 5.0GHz at 1.39V with a high LLC on a 360mm AIO water. I'm running at ~2100 RAM speed just to remove that as a variable too. Temperatures don't seem to be an issue in hour long RealBench stress tests, it really seems to be power stability.

I'm wondering if it could have anything to do with me running on a Asus ROG STRIX-E z370 mobo. I believe that the board/VRMs should be able to handle the 9900k and the power demanded. But could this be the issue that is holding me back?

I know that the silicon lottery can sometimes screw you, but 5.0GHz at 1.39V is almost horrendous in my opinion and I'm trying to narrow down the places that could be causing problems.
Here is what i'm testing now:
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Last edited by clucernoni; 11-17-2018 at 05:03 PM.
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post #2 of 5 (permalink) Old 11-18-2018, 04:47 PM
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First of all ... don't use Ai Suite for overclocking is a buggy mess. Stick to the BIOS. Use HWINFO64 to monitor in real time the power consumption, vrm temp and any other relevant sensor.

I7 8700K@4.7Ghz / Z370-A / 2X8GB 3200Mhz ADATA Spectrix D40 / 1TB Intel 600P / EVO 850 250GB / 4TB WD Gold / RTX 2080 GAMING OC / NZXT Noctis 450 ROG / EVGA G2 850W@ECO
Heatkiller REV 3.0 / XSPC EX360 / DDC 3.25 + EK-XRES / 3x Venturi HF-12 PWM
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post #3 of 5 (permalink) Old 11-18-2018, 05:07 PM
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Your board has the same vrm as my Z370-A is actually a 4 phase vrm because the controller only has 4 outputs and no doublers are present in the board. Basically is running a 4 x 2 configuration. With my 8700K @ 5.0Ghz running AVX2 load I hit 180W and the vrm gets REALLY HOT !. So a 9900K at 5.0Ghz with a synthetic load will hit 200w+ easily.

Use my "template" and start slow for example at 47x and then 48x ..... You can set a AVX offset if you can't reach stability at 5.0ghz all cores. Another option is set a few cores to 51 or 52x for CPU bound games like CS:GO
-First load the XMP profile
-SVID Behevior: Best case - this change how aggressive is the boost voltage table
-Cpu Core/cache voltage: Offset + and increase the value in small steps
-cpu core/cache current limit max: 255
-CPU VCCIO: 1.15
-CPU System agent voltage: 1.20
-CPU load line calibration: Level 5 or 6 ... in my experience level 5 is close to the voltage set but depends on the load
-CPU Current capability: 140%

I7 8700K@4.7Ghz / Z370-A / 2X8GB 3200Mhz ADATA Spectrix D40 / 1TB Intel 600P / EVO 850 250GB / 4TB WD Gold / RTX 2080 GAMING OC / NZXT Noctis 450 ROG / EVGA G2 850W@ECO
Heatkiller REV 3.0 / XSPC EX360 / DDC 3.25 + EK-XRES / 3x Venturi HF-12 PWM

Last edited by lexer; 11-18-2018 at 05:08 PM. Reason: ads
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post #4 of 5 (permalink) Old 11-18-2018, 10:46 PM
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You should be able to get it to work at a lower vcore. That vcore is probably overloading your vrm's since the cpu will draw 250W+ at that setting. Try changing the power limits in the bios.

CPU
Core I9-9900k @ 5.0
Motherboard
Asus Maximus XI Gene
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EVGA 2080TI XC Black Edition
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CMK16GX4M2K4700C19
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Intel 905p 960GB
Hard Drive
HP EX950 2TB m.2
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Seasonic Prime Ultra Titanium 1KW
Cooling
280mm Slim + 360MM Thick
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Fractal Design Meshify S2
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Windows 10 64bit
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HP Omen x27 240hz
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post #5 of 5 (permalink) Old 06-20-2020, 07:21 PM
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Need help please

Can I ask what did you do with your 9900k? I am in the same situation, and I'm pretty worried. I mean, it's even hardly stable at 4,9 ghz.
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