7 GHz OCCT Bronze Stability Certificate
I obtained an OCCT Bronze Stability Certificate with a liquid nitrogen-cooled 7.1 GHz Intel Core i9-14900KF processor.
Table of Contents
What is an OCCT Stability Certificate?
OCCT is an incredibly advanced system stability testing software for gamers and industrial players. Its main purpose is to provide anyone with the tools to verify their system’s stability. The software has been around for over two decades and has recently undergone significant upgrades. I started relying on OCCT for my overclocking guides starting from SkatterBencher #67.
An OCCT Stability Certificate is proof of having successfully passed a predefined set of stability stress tests. Once you pass the stability tests, you can review the run and relevant system monitoring information at ocbase.com. There are different levels of stability certificates. Higher levels last longer and are more thorough, but they take much longer to complete.
- Bronze: 1-2h
- Silver: 3-4h
- Gold: 6-8h
- Platinum: 12h
OCCT System No 3D Bronze Stability Certificate
I opted for the basic stability certificate labeled “System No 3D” which features CPU and memory stability tests. The certificate includes the following workloads:
- 30min CPU+RAM: AVX2, large data set, extreme mode, variable load type, all cores
- 15min CPU: SSE, small data set, extreme mode, variable load type, all cores
- 15min Memory: 71% of total system memory
- 40sec CPU Benchmarks: SSE single, SSE multi, AVX single, AVX multi
- 10sec Memory Benchmarks: Read, Write, Combined
Here’s a link to the OCCT Stability Certificate: https://www.ocbase.com/stabilityCertificate/66694444be43c86fba22d2cb.
The most challenging workload is the 15 minutes of CPU SSE stress test as it uses a small data set. That means the stress test also loads the CPU L1, L2, and L3 cache rather than going to memory. For my system, the average power consumed during this workload was 480W.
System Overview
While it’s not unusual to run OCCT to check stability, it’s not common to use liquid nitrogen to cool the system parts. I thought it would be fun to achieve 7 GHz+ stability and demonstrate that extreme overclocking isn’t just about breaking benchmark records.
Extreme overclocking is about finding the maximum performance given the workload constraints, whether that’s a few seconds to break the frequency record or an hour to get a stability certificate.
Here’s the system specification:
- Intel Core i9-14900KF
- ASUS ROG Maximus Z790 Apex Encore
- G.Skill Trident Z5 RGB 32GB F5-7800J3646H16G
- AGI 512GB NVMe M.2 Gen3
- ASUS ROG Thor 1600W Titanium Gaming
- Open Benchtable V2 Titanium
- ElmorLabs Volcano LN2 Container
- ElmorLabs PMD-USB
- ElmorLabs KTH-USB
The OC configuration was pretty basic:
- P-core Ratio: 71X
- E-core Ratio: 55X
- Ring Ratio: 55X
- DRAM Frequency: DDR5-7200
- VccIA Voltage Mode: Adaptive
- VccIA Voltage: 1.55V
- FLL OC Mode: Ratio OC
- AC LoadLine: 0.01
- VRM LoadLine Calibration: Level 6
The system was pretty stable throughout the session except for the memory subsystem. We suspect that the memory controller couldn’t handle the combination of high CPU load, high memory frequency, and extremely low temperatures. That’s why the memory frequency was reduced from the XMP-rated DDR5-7800 to DDR5-7200.
Even though the OCCT Stability Test is putting up a tough scenario for the system, it doesn’t fully push the CPU to its limit. We also tested the CPU AVX2 workload with a small data set which pushed over 600W CPU Package Power.
OCCT Benchmark Records
At the end of the OCCT Stability Certificate test, it also runs the OCCT CPU and memory benchmarks. I accidentally also took the OCCT benchmark records for CPU SSE Single and CPU AVX single.
