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i7 8700k overclock results and settings

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post #4251 of 4256 (permalink) Old 05-17-2020, 02:19 PM
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Quote: Originally Posted by oscarf View Post
How does this look, am I still on the safe side?

CPU Clock Ratio = 52x
Ring Ratio = 48x
AVX Offset = 0
Hyper-Threading = Off
In BIOS CPU Vcore = 1.355V (static)
RAM = X.M.P
CPU VCCIO = 0.950V
CPU VCCSA = 1.050V
LLC = HIGH

HWiNFO after 2 hours with OCCT:
Current - Minimum - Maximum - Average
CPU Package: 55˚C - 30˚C - 57˚C - 54˚C
VRM MOS: 35˚C - 30˚C - 35˚C - 34˚C
VCCSA: 1.044V - 1.044V - 1.056V - 1.045V
VCCIO: 0.946V - 0.946V - 0.946V - 0.946V
VR VOUT: 1.260V - 1.250V - 1.338V - 1.259V
Current (IOUT): 92.500A - 18.500A - 103.250A - 94.690A
Power (POUT): 120.500W - 28.500W - 128.500W - 117.722W

idle VR VOUT = 1.332 V
idle CPU Package = 30˚C

Completed without any errors, will do new test tomorrow with RealBench.
Why did you disable hyperthreading? Is the 8700k vulnerable to exploits with hyperthreading enabled? Aren't you giving up perf. by disabling hyperthreading?
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post #4252 of 4256 (permalink) Old 05-17-2020, 02:43 PM
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Quote: Originally Posted by 8051 View Post
Why did you disable hyperthreading? Is the 8700k vulnerable to exploits with hyperthreading enabled? Aren't you giving up perf. by disabling hyperthreading?

What I mainly use the computer to (X-Plane 11 and other FlightSIM software) do not utilize HT very well, therefore I have it off.
But on other occasions I turn on HT.

[email protected] Ghz, GTX 1080 Ti FE 11Gb, 32GB DDR4, Aorus Z390 Master, Corsair RM850X V2, Corsair Obdision 750D Airflow Edition
OC-XP11
(11 items)
CPU
i7-8700K
Motherboard
Aorus Z390 Master
GPU
MSI GTX 1080 Ti FE 11Gb
RAM
G.Skill Flare X Black DDR4 3200MHz
Hard Drive
Samsung PM981a
Hard Drive
SanDisk SD8TN8U512G2000
Hard Drive
Samsung 860 QVO 1TB 2,5"
Power Supply
Corsair RM850X V2
Cooling
Corsair iCUE H115i RGB PRO XT
Case
Corsair Obsidian 750D Airflow Edition
Operating System
Windows 10 Pro
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post #4253 of 4256 (permalink) Old 05-17-2020, 02:45 PM
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Quote: Originally Posted by oscarf View Post
How does this look, am I still on the safe side?

CPU Clock Ratio = 52x
Ring Ratio = 48x
AVX Offset = 0
Hyper-Threading = Off
In BIOS CPU Vcore = 1.355V (static)
RAM = X.M.P
CPU VCCIO = 0.950V
CPU VCCSA = 1.050V
LLC = HIGH

HWiNFO after 2 hours with OCCT:
Current - Minimum - Maximum - Average
CPU Package: 55˚C - 30˚C - 57˚C - 54˚C
VRM MOS: 35˚C - 30˚C - 35˚C - 34˚C
VCCSA: 1.044V - 1.044V - 1.056V - 1.045V
VCCIO: 0.946V - 0.946V - 0.946V - 0.946V
VR VOUT: 1.260V - 1.250V - 1.338V - 1.259V
Current (IOUT): 92.500A - 18.500A - 103.250A - 94.690A
Power (POUT): 120.500W - 28.500W - 128.500W - 117.722W

idle VR VOUT = 1.332 V
idle CPU Package = 30˚C

Completed without any errors, will do new test tomorrow with RealBench.
Those settings are perfectly safe. Good job.

[email protected] ghz, RX Vega 64, 32GB DDR4, Gigabyte Aorus Master, Seasonic Platinum 1000W, Corsair 760T
Alt: MSI GT73VR Throttlebook with 7820HK @ 4.7 ghz, GTX 1070 MXM TDP mod to 230W, 32 GB RAM

Quote: Originally Posted by sakete View Post
Well, I want you to know I have an academic degree in speculation.
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post #4254 of 4256 (permalink) Old 05-17-2020, 02:52 PM
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Quote: Originally Posted by Falkentyne View Post
Those settings are perfectly safe. Good job.

Many thanks, I was a little concerned about LLC level and Vdroop
Big thanks mate

[email protected] Ghz, GTX 1080 Ti FE 11Gb, 32GB DDR4, Aorus Z390 Master, Corsair RM850X V2, Corsair Obdision 750D Airflow Edition
OC-XP11
(11 items)
CPU
i7-8700K
Motherboard
Aorus Z390 Master
GPU
MSI GTX 1080 Ti FE 11Gb
RAM
G.Skill Flare X Black DDR4 3200MHz
Hard Drive
Samsung PM981a
Hard Drive
SanDisk SD8TN8U512G2000
Hard Drive
Samsung 860 QVO 1TB 2,5"
Power Supply
Corsair RM850X V2
Cooling
Corsair iCUE H115i RGB PRO XT
Case
Corsair Obsidian 750D Airflow Edition
Operating System
Windows 10 Pro
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post #4255 of 4256 (permalink) Old 05-18-2020, 02:02 PM
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Quote: Originally Posted by oscarf View Post
How does this look, am I still on the safe side?

CPU Clock Ratio = 52x
Ring Ratio = 48x
AVX Offset = 0
Hyper-Threading = Off
In BIOS CPU Vcore = 1.355V (static)
RAM = X.M.P
CPU VCCIO = 0.950V
CPU VCCSA = 1.050V
LLC = HIGH

HWiNFO after 2 hours with OCCT:
Current - Minimum - Maximum - Average
CPU Package: 55˚C - 30˚C - 57˚C - 54˚C
VRM MOS: 35˚C - 30˚C - 35˚C - 34˚C
VCCSA: 1.044V - 1.044V - 1.056V - 1.045V
VCCIO: 0.946V - 0.946V - 0.946V - 0.946V
VR VOUT: 1.260V - 1.250V - 1.338V - 1.259V
Current (IOUT): 92.500A - 18.500A - 103.250A - 94.690A
Power (POUT): 120.500W - 28.500W - 128.500W - 117.722W

idle VR VOUT = 1.332 V
idle CPU Package = 30˚C

Completed without any errors, will do new test tomorrow with RealBench.

The test yesterday was with OCCT version 5.5.7

Okay, this is how it looks from +2 hours of testing earlier today with RealBench 2.56, also completed without any errors.

HWiNFO after +2 hours with RealBench
Current - Minimum - Maximum - Average
CPU Package: 31˚C - 28˚C - 56˚C - 50˚C
VRM MOS: 30˚C - 28˚C - 33˚C - 32˚C
VCCSA: 1.044V - 1.044V - 1.056V - 1.045V
VCCIO: 0.946V - 0.935V - 1.683V - 0.946V
VR VOUT: 1.332V - 1.262V - 1.332V - 1.281V
Current (IOUT): 23.000A - 22.750A - 94.500A - 72.670A
Power (POUT): 29.000W - 28.500W - 117.000W - 90.593W

idle VR VOUT = 1.332 V
idle CPU Package = 30˚C

[email protected] Ghz, GTX 1080 Ti FE 11Gb, 32GB DDR4, Aorus Z390 Master, Corsair RM850X V2, Corsair Obdision 750D Airflow Edition
OC-XP11
(11 items)
CPU
i7-8700K
Motherboard
Aorus Z390 Master
GPU
MSI GTX 1080 Ti FE 11Gb
RAM
G.Skill Flare X Black DDR4 3200MHz
Hard Drive
Samsung PM981a
Hard Drive
SanDisk SD8TN8U512G2000
Hard Drive
Samsung 860 QVO 1TB 2,5"
Power Supply
Corsair RM850X V2
Cooling
Corsair iCUE H115i RGB PRO XT
Case
Corsair Obsidian 750D Airflow Edition
Operating System
Windows 10 Pro
▲ hide details ▲
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post #4256 of 4256 (permalink) Old 05-19-2020, 12:03 PM
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Hi all, what is max voltage for 8700k? Currently at 5.1 GHz, 0 avx, 1.386v dynamic offset, turbo LLC (gigabyte, Extreme is highest), 1.2v vccio and vccsa, 1.45v dram, prime 95 small fft stable 20 min, no bsod on games, no windows reporting errors going on 2 weeks now. Tempted to try for 5.2 with more voltage or LLC. Proc is delidded with Bitspower nickel IHS under monoblock and 1400w radio surface area (going by EK rating, system in sig).

Temps aren't a problem, proc only sees 1.386v a few hours a day whilst gaming, 90% of the time it's at 3.6 GHz and .700mv (Balanced Power Plan).

I'm reading that 1.52v is max for this chip but there seems to be some controversy around this and I cant seem to find a definitive answer. If I can secure 5.2 GHz 0 avx with 1.425v would this be safe given the usage and temp environment (65c load)?

8700k @ 5.1 GHz - 0 AVX @ 1.386v Dynamic Offset w/ EK Monoblock + Delid | Gigabyte Z370 Aorus Gaming 7 | EVGA 2080 Ti XC2 Ultra @ 2070 Mhz core, 8025 MHz memory @ 1.019v w/ 375W FTW3 vbios + Phanteks Glacier Block | EK CE 420 + EK XE 360 | 2x16GB G-Skill Trident Z Royal 3600 MHz 17-20-20-38 | 2 TB Sabrent Rocket | Corsair RM1000x | Thermaltake View 71 | Alienware AW3418DW + Asus ROG Swift PG278Q (for 3D Vision) on Amazon Basics Arms | Win10 Pro 1809
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