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How to push past 5Ghz on 8700K?

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Processor intel i9 9900k @ 5.0ghz 1.33v - cache @ 4.7ghz
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hi all...
i am at 5.0ghz at 1.35v static voltage and bios 3.30 asrock z370 gaming k6...
what i wanted to say,,, on older bios i needed more voltage like 1.39 to achieve 5.0ghz so maybe u should try newer bios versions
i noticed asrock even released bios 4.20 for 9900ks, but i am a little afraid to try that one coz it states that we wont be able to flash back to lower versions...
 
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Processor Core i7 8700K@5 GHz
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Memory 16 GB DDR4 GSkill Trident Z 3200
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Audio Device(s) Realtek onboard
Power Supply be quiet 650W Straight Power
Mouse Logitech G502
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Benchmark Scores FireStrike: 25953/Extreme: 13141/Ultra: 7099/TimeSpy: 11426/Superposition: 7667/CinebenchR20: 3916
The 9900KS is a binned 9900K which can do 5GHz all Core Turbo out of the box, so 5.3 GHz isn‘t that special. The 8700K has an one core turbo of 4.7, so 5 GHz all core is more difficult. But many chips achieve this. Perhaps the Mobo isn‘t that good for OC but these spikes of 0.1V shouldn‘t be like EarthDog said. That Problem is Mainboard related.
 
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hi all...
i am at 5.0ghz at 1.35v static voltage and bios 3.30 asrock z370 gaming k6...
what i wanted to say,,, on older bios i needed more voltage like 1.39 to achieve 5.0ghz so maybe u should try newer bios versions
i noticed asrock even released bios 4.20 for 9900ks, but i am a little afraid to try that one coz it states that we wont be able to flash back to lower versions...

I have the latest bios. Spikes are still there with Turbo LLC. I'm pretty happy with 5Ghz all core, but I do like tweaking my system to get the best I can.
Right now, I'm at 1.375 fixed @ 5Ghz, though on load, the LLC kicks in and bumps it up a bit.

So far, I've gotten the temperatures more under control which is a win in my book. I just need to test some gaming.
 
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Processor Core i7 8700K@5 GHz
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Memory 16 GB DDR4 GSkill Trident Z 3200
Video Card(s) Asus ROG STRIX RTX 2080 O8G (GPU@2115 MHz/VRAM@7800MHz)
Storage 1x Samsung Evo 840 SSD 256, 1x WD Blue 1 TB HDD
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Case Fractal Design R6 with Window
Audio Device(s) Realtek onboard
Power Supply be quiet 650W Straight Power
Mouse Logitech G502
Keyboard Cherry KB
Software Win 10 Pro
Benchmark Scores FireStrike: 25953/Extreme: 13141/Ultra: 7099/TimeSpy: 11426/Superposition: 7667/CinebenchR20: 3916
Did you do a BIOS reset after upgrading? It‘s strongly advised to do so
 
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my 8700k would do 5.2 with no problem but it ran too hot.. i was gonna delid it and keep it but ended up buying a 9900k instead...

i dont think the OP has a very good chip..

for what its worth my 9900k also runs too hot when firing on all cylinders.. he he

trog
 
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Processor delidded i9-9900K (P0) @ 5.0Ghz + NB @ 4.7Ghz ~1.2V (VR VOUT) 1.024V IO and SA + Koolance CPU-380i
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Assuming 30C ambient temperature with strong custom loop.
9900K is very hard to cool. At 1.4V even with delidding heat become problem. Die lapping or direct die or both needed for further voltage pushing.
A good sample of delidded 8700K / 8086K at 1.5V is not temperature limit at all. This is current / voltage limited.
 
Joined
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Processor intel i9 9900k @ 5.0ghz 1.33v - cache @ 4.7ghz
Motherboard Asrock z370 fatal1ty gaming k6
Cooling Corsair H115i with 2x Corsair LL140mm rgb fans
Memory Corsair Dominator Platinum 32GB(4x8kit) ddr4 4000mhz@4100mhz
Video Card(s) Msi Gtx1080 Ti Gaming X Trio 11gb +100gpu/+700mem
Storage samsung evo 860 500gbx2, sandisk 3d ultra 500gbx2, kingston hyperX ssd 480gb, Seagate Barracuda3TB
Display(s) Asus ROG Swift pg278q G-Sync
Case Corsair 760t Graphite Series with 3x Corsair LL140mm fans
Audio Device(s) Sound Blaster X ae-5
Power Supply Corsair RM850i
Mouse Roccat Tyon
Keyboard Corsair RGB Strafe mechanical keyboard
Software win10pro 64bit
Assuming 30C ambient temperature with strong custom loop.
9900K is very hard to cool. At 1.4V even with delidding heat become problem. Die lapping or direct die or both needed for further voltage pushing.
A good sample of delidded 8700K / 8086K at 1.5V is not temperature limit at all. This is current / voltage limited.
i see u r using 9900k on taichi Z370 wich is very similar to mine mbo... how's it performing on ur mboard? are u happy? did u use perhaps 8700k before 9900k on that same mbo?
p.s. maybe a stupid one but how can i tell from the box if 9900k is p0 or r0?
 
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Processor Core i7 8700K@5 GHz
Motherboard MSI Z370 Gaming Pro Carbon
Cooling 2xEKWB Rads, EKWB Reservoir 250, Aqua Computer Kryos Next CPU Cooler, Phanteks Glacier GPU Cooler
Memory 16 GB DDR4 GSkill Trident Z 3200
Video Card(s) Asus ROG STRIX RTX 2080 O8G (GPU@2115 MHz/VRAM@7800MHz)
Storage 1x Samsung Evo 840 SSD 256, 1x WD Blue 1 TB HDD
Display(s) Asus ROG Swift PG248 1080p Display/144Hz/G-Sync
Case Fractal Design R6 with Window
Audio Device(s) Realtek onboard
Power Supply be quiet 650W Straight Power
Mouse Logitech G502
Keyboard Cherry KB
Software Win 10 Pro
Benchmark Scores FireStrike: 25953/Extreme: 13141/Ultra: 7099/TimeSpy: 11426/Superposition: 7667/CinebenchR20: 3916
maybe a stupid one but how can i tell from the box if 9900k is p0 or r0?

Use CPU-Z
 
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Processor delidded i9-9900K (P0) @ 5.0Ghz + NB @ 4.7Ghz ~1.2V (VR VOUT) 1.024V IO and SA + Koolance CPU-380i
Motherboard Asrock Z370 Taichi P4.20
Cooling HWlabs Nemesis GTS 360 and GTX 240 / 3x Gentle Typhoon AP-15 1850 RPM / 3x EK Vardar / SC600 pump
Memory 2x8GB 2133Mhz OEM SK Hynix RAM (dual ranks AFR) @ 3500Mhz 16-18-18-36-360-2T 1.408V with 60mm fan
Video Card(s) EVGA GTX 1080 Ti FTW3 + universal waterblock underclock @ 1721Mhz 0.8V 12488 mem(140W during gaming)
Storage Transcend PCIE 220S 1TB , Seagate Barracuda 4TB
Display(s) Acer XR341CK 3440x1440 75Hz G-Sync compatible calibrated by X-Rite i1 Display Pro Plus
Case NZXT H440 White modded front and top panel for better airflow.
Power Supply Corsair HX 750W 80+ Silver
Mouse Logitech G Pro Wireless
Keyboard Logitech G913 (GL clicky) for gaming , Ducky Shine 7 (Cherry MX red) for working
Software Windows 10 Enterprise 2016 LTSB (1607 inside)
Benchmark Scores 1838 FIDE rating (inactive since 2010). ~2150 Lichess.org blitz rating.
i see u r using 9900k on taichi Z370 wich is very similar to mine mbo... how's it performing on ur mboard? are u happy? did u use perhaps 8700k before 9900k on that same mbo?
p.s. maybe a stupid one but how can i tell from the box if 9900k is p0 or r0?

About 9900K look on IHS.
SRELS = P0
SRG19 = R0
The Z370 Taichi is a bit underperform with 8/16. My CPU can run Cinebench at 5.3Ghz on APEX XI but not on Taichi. The VRM is massively different (250A current output for Taichi , 960A on APEX XI).
However with 8700K 6/12 and 9700K 8/8 it is what the board is design for.
I got a slightly used Taichi for $130 in Jan 2018 (8th gen just released for 2 months) so I cannot complain at all. Best VRM for the money at that time.
 
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