How to push past 5Ghz on 8700K?

mobiuus · Nov 9, 2019

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...

JackCarver · Nov 9, 2019

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.

silkstone · Nov 9, 2019

DarkStalker said:
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.

JackCarver · Nov 9, 2019

Did you do a BIOS reset after upgrading? It‘s strongly advised to do so

trog100 · Nov 9, 2019

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

Enterprise24 · Nov 9, 2019

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.

mobiuus · Nov 9, 2019

Enterprise24 said:
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?

JackCarver · Nov 9, 2019

maybe a stupid one but how can i tell from the box if 9900k is p0 or r0?

Use CPU-Z

TxGrin · Nov 9, 2019

I have my 2nd pc a i7-6700k running 5Ghz after delidding it

Intel Core i7 6700K @ 5001.2 MHz - CPU-Z VALIDATOR

[gdzq7x] Validated Dump by i7-6700 Delid @ 5Ghz (2019-10-24 23:08:15) - MB: Gigabyte Z170X-Gaming 7 - RAM: 32768 MB

valid.x86.fr

Enterprise24 · Nov 10, 2019

DarkStalker said:
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.

System Name	Cabal
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)	Asus ROG Strix rtx3090 Gaming OC 24gb
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

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

System Name	Gaming System / HTPC-Server
Processor	i7 8700K (@4.8 Ghz All-Core) / R7 5900X
Motherboard	Z370 Aorus Ultra Gaming / MSI B450 Mortar Max
Cooling	CM ML360 / CM ML240L
Memory	16Gb Hynix @3200 MHz / 16Gb Hynix @3000Mhz
Video Card(s)	Zotac 3080 / Colorful 1060
Storage	750G MX300 + 2x500G NVMe / 40Tb Reds + 1Tb WD Blue NVMe
Display(s)	LG 27GN800-B 27'' 2K 144Hz / Sony TV
Case	Xigmatek Aquarius Plus / Corsair Air 240
Audio Device(s)	On Board Realtek
Power Supply	Super Flower Leadex III Gold 750W / Andyson TX-700 Platinum
Mouse	Logitech G502 Hero / K400+
Keyboard	Wooting Two / K400+
Software	Windows 10 x64
Benchmark Scores	Cinebench R15 = 1542 3D Mark Timespy = 9758

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

System Name	money pit..
Processor	Intel 9900K 4.8 at 1.152 core voltage minus 0.120 offset
Motherboard	Asus rog Strix Z370-F Gaming
Cooling	Dark Rock TF air cooler.. Stock vga air coolers with case side fans to help cooling..
Memory	32 gb corsair vengeance 3200
Video Card(s)	Palit Gaming Pro OC 2080TI
Storage	150 nvme boot drive partition.. 1T Sandisk sata.. 1T Transend sata.. 1T 970 evo nvme m 2..
Display(s)	27" Asus PG279Q ROG Swift 165Hrz Nvidia G-Sync, IPS.. 2560x1440..
Case	Gigabyte mid-tower.. cheap and nothing special..
Audio Device(s)	onboard sounds with stereo amp..
Power Supply	EVGA 850 watt..
Mouse	Logitech G700s
Keyboard	Logitech K270
Software	Win 10 pro..
Benchmark Scores	Firestike 29500.. timepsy 14000..

System Name	Can I run it
Processor	delidded i9-10900KF @ 5.1Ghz SVID best case scenario +LLC5+Supercool direct die waterblock
Motherboard	ASUS Maximus XII Apex 2801 BIOS
Cooling	Main = GTS 360 GTX 240, EK PE 360,XSPC EX 360,2x EK-XRES 100 Revo D5 PWM, 12x T30, AC High Flow Next
Memory	2x16GB TridentZ 3600@4600 16-16-16-36@1.61V+EK Monarch, Separate loop with GTS 120&Freezemod DDC
Video Card(s)	Gigabyte RTX 3080 Ti Gaming OC @ 0.762V 1785Mhz core 20.8Gbps mem + Barrow full cover waterblock
Storage	Transcend PCIE 220S 1TB (main), WD Blue 3D NAND 250GB for OC testing, Seagate Barracuda 4TB
Display(s)	Samsung Odyssey OLED G9 49" 5120x1440 240Hz calibrated by X-Rite i1 Display Pro Plus
Case	Thermaltake View 71
Audio Device(s)	Q Acoustics M20 HD speakers with Q Acoustics QB12 subwoofer
Power Supply	Silverstone ST-1200 PTS 1200W 80+ Platinum
Mouse	Logitech G Pro Wireless
Keyboard	Logitech G913 (GL Linear)
Software	Windows 11

System Name	Dark Flash Phantom
Processor	i9-9900KS @ 5.3Ghz
Motherboard	Z390 AORUS MASTER
Cooling	RBG 2000 to 6000 rpm Fans
Memory	64Gb DDR4 3800Mhz
Video Card(s)	RTX 4070 Super
Storage	5 Sabrent 2TB Rocket NVMe PCIe M.2 SSD Drives
Display(s)	55 inch Sony
Case	Darkflash Phantom
Power Supply	1300 Watt
VR HMD	Quest 3
Software	Windows 11 / Linux Duel Boot
Benchmark Scores	https://www.gpumagick.com/scores/show.php?id=34679 https://valid.x86.fr/cs4dc6