Overclock i7-7700k Vcore excessively high
Overclock i7-7700k Vcore excessively high
I constructed my desktop five years ago using these parts:
CPU: i7-7700k @ 4.20 GHz (Turbo boost: 4.5GHz)
[delidded]
Mobo: Asus Maximus IX Extreme
GPU: Gigabyte - GTX 1080 Ti Waterforce WB Xtreme Edition 11G
RAM: 32GB - G.Skill - Trident Z RGB - DDR4 3600Mhz - 32GB (8GBx4) - 16-16-16-36
PSU: Seasonic - PRIME 850 W Titanium
Custom cooling setup:
Radiator: two radiators (520x30x60mm)
Radiator fans: eight Noctua (120x120x15mm)
Pump: EK-XRES 140 Revo D5
Recently, I chose to overclock the CPU for the first time.
Using Intel Extreme Tuning Utility, I achieved a speed of 4.9GHz with Core Voltage at 1.325V.
Spoiler:
Intel Extreme Tuning
The system appears stable; I completed multiple stress tests with OCCT and passed all without issues. During these tests, the CPU temperature stayed around 75 °C.
However, I noticed the Vcore was higher than expected when the CPU wasn’t running. It fluctuated between 1.360V and 1.376V, while during the stress test it hovered near 1.344V.
Spoiler:
HWiNFO64 initially seemed to report incorrect voltage values. After measuring with a multimeter using motherboard test points, I confirmed the readings were accurate.
Spoiler:
Mobo test points
in idle mode showed a Vcore of approximately 1.37V during the stress test, whereas I recorded about 1.355V.
Should I be concerned? Why is there this difference?
On several forums, people advise keeping the Vcore below 1.4V for an i7-7700k. I’m eager to try pushing it to 5GHz but worry the Vcore might exceed 1.4V.
Anyone have similar experiences? Any advice would be greatly appreciated!
Thank you.
No.
The explanation details how the CPU's voltage droop and motherboard calibration work together to address this issue.
You should review the section on voiding warranty safely, or begin at the start, but I recommend going through the whole article for clarity.
It comes from an Intel engineer, which is a trustworthy reference.
No.
The explanation details how the CPU's voltage droop and motherboard calibration work together to address this issue.
You should review the section on voiding warranty safely, or begin at the start, but I recommend going through the whole article for clarity.
It comes from an Intel engineer, which is a trustworthy reference.