Question Overclocking a locked Intel CPU (i7-8700) ?

[CNMNJ609]

Was playing with XTU in preparation for some system upgrades. Tried it out on my i7-8700 while running a 3D rendering package. Per the dashboard it hit 10.55 GHz at one point. Is this possible? Screenshot of dashboard below
https://photos.app.goo.gl/gU5CgFa4bBQRMVSW6

 

[Lutfij]

Welcome to the forums, newcomer!

Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
BIOS version for your motherboard?

 

[CNMNJ609]

THANK YOU!

Please list the specs to your build like so:
CPU: intel i7-8700
CPU cooler: Stock cooler (Fan)
Motherboard: HP83H1 (Version: KBC 07.D2.00)
Ram: 48 Gigs
SSD/HDD: 1 SSD (SATA) / 1 HDD
GPU: Intel UHD 630
PSU: 250W (HP Standard)
Chassis: HP EliteDesk 800 G4 SFF
OS: Windows 11
Monitor: (2) Dell S2719DM / ASUS MX239
BIOS version for your motherboard? HP Q01 Ver. 02.23.00, 3/28/2023

This is a standard pre-built system

 

[CNMNJ609]

I previously benchmarked my settings in XTU and came in at 5.5 GHz (on a processor supposedly maxing out at 4.6), obviously this is NOT sustained speeds - XTU only allows for Turbo Boost tuning with the i7-8700 processor.

 

[Lutfij]

IMHO, you should revert to stock clocks as you're going beyond spec for what the prebuilt as designed for.

 

[uWebb429]

Is this possible?

No, it is not possible. You found a bug in XTU. The i7-8700 has a locked maximum multiplier. It is physically impossible for it to run at 10 GHz.

 

[CNMNJ609]

No, it is not possible. You found a bug in XTU. The i7-8700 has a locked maximum multiplier. It is physically impossible for it to run at 10 GHz.

That is what I was thinking also - last night I ran CPUID HWMonitor simultaneously with XTU and the numbers did not match. Oh well, I guess mystery solved! I'll be getting a i7-8700k hopefully soon with some other upgrades (better ram) Nvidia GPU, gonna do a little case modification for ventilation (cause the SFF case has NONE lol)

 

[CNMNJ609]

IMHO, you should revert to stock clocks as you're going beyond spec for what the prebuilt as designed for.

I'm not really sure it effectually did anything 😉 - I'll wait for the new processor to arrive and then tinker around with that when it's all installed and ready to go.

 

[lolvatveo]

maybe you can overclock it with bfb feature