I'm looking for advice on tuning my gaming PC before Ace Combat 8 releases. The system has a ROG Strix X870-A motherboard, Ryzen 7 7800X3D, RTX 4080 Super using driver 566.36, 64GB of Kingston Fury Beast DDR5-6000 CL30, a Corsair RM1000e power supply, two 2TB WD_BLACK NVMe SSDs, and one 4TB WD_BLACK NVMe SSD. The operating system is installed on one of the 2TB drives.
I've changed a large number of BIOS and Windows settings, including memory timings, ASPM and PCIe options, CPU power management, CPPC settings, C-states, SVM, HAGS, HPET, network throttling, Process Lasso rules, and several registry or security-related options. CPU VDDIO/MC is set to 1.250V, while VSOC is between 1.220V and 1.235V.
The main issue is memory stability. With EXPO enabled at DDR5-6000, OCCT reports more than 1,000 errors within two minutes and eventually crashes. At DDR5-5800, the system completes an overnight memory test without errors. Gaming generally works at 6000, but I don't want to rely on settings that fail stress testing. CapFrameX typically shows the CPU at around 40–50% usage while the GPU reaches roughly 90–98%.
I'd appreciate feedback on whether any of these changes are unnecessary or counterproductive, and suggestions for getting the best balance of stability and gaming performance.
2 Answers
You can experiment with a small increase to memory voltage or VSOC, since some weaker memory controllers need around 1.25V VSOC to hold DDR5-6000. I’d start with the standard EXPO profile rather than manually changing lots of secondary settings, and avoid overriding the memory-controller voltage unless you have a specific reason.
For Hynix-based memory, around 1.35–1.375V for VDD, VDDQ, and related memory voltages is often enough. Make changes gradually and retest after each one. Don’t assume a setting is stable just because games launch successfully.
For a 7800X3D, enabling the motherboard’s normal EXPO profile and leaving most other settings at their defaults is usually the sensible starting point. If the GPU is already reaching 90–98% utilization, you’re generally getting most of the available gaming performance anyway, and this CPU doesn’t gain a huge amount from pushing memory beyond its stable settings.
Having to run DDR5-5800 may simply be down to the memory controller’s silicon quality. If 6000 works in games but fails OCCT, treat it as unstable and keep the faster setting only after it passes proper testing.
That was my concern. The computer boots and games normally at DDR5-6000, but OCCT produces over 1,000 errors within about two minutes and can crash the system. Dropping to 5800 completed an overnight test without errors, so I’m leaning toward keeping the lower speed.
After testing, I found the memory was unhappy with a 1:1 configuration. Returning to optimized defaults allowed EXPO to run in 1:2 mode, while forcing 1:1 produced more than 50 errors in under three minutes. DDR5-5800 in the stable configuration passed an overnight test without errors, so the memory controller may simply not handle 6000 at 1:1 reliably.