Originally Posted by HBizzle
Do folks have suggested bios settings to adjust for overclocking? Assuming I will need to adjust llc etc... Wondering if there are any threaripper/amd specific settings I should worry about.
Overclocking is CPU specific. The amount of voltage required to sustain a specific clock varies by silicon.
You will need to set the Vcore with the setting paired with the LLC. Someone else may be better at explaining doing P-state OC, but all core is straight forward.
An easy way is to have a program to monitor heat under load. Select a voltage to start, like 1.25V or 1.3V. Then set the all core to around 3.9GHz. Increase by 50MHz at a time until testing shows instability or the Tdie reaches 68C under load. If you haven't reached 68C on Tdie, bump up the voltage by one or two ticks (I think it is 7.5mV resolution on the board, but would need to check as it could be 6.25mV). Alternatively, you can just go up in 25mV increments (0.025V).
Repeat until you are near the Tdie temp and then robustly stress test for stability using multiple programs. After achieving proven stability in robust testing, you should be ready to use the system.
If doing memory overclocking, be aware that later manipulating the SOC voltage can increase the heat output, so leaving 2-5C under the Tdie of 68C would give the needed buffer.
But, if overclocking the memory, plan on spending a large amount of time tuning the ram and doing tests to verify stability. For memory, I set aside about two weeks for tuning and stability testing before I trust it with deployment. Memory errors can even corrupt OS system files. So do a macrium backup for a quick redeployment during or after memory tuning (when you think it is stable, deploy your backup, then run through the HCI memtest, memtest86+, testmem5 v0.12, p95 with the custom sets for stressing memory use, etc.).