It only lowers to 95W, when PBO is enabled.Nathan_P wrote:Eco mode drops the TDP by 1 tier, so your 105w 3950x drops to 95w. It does thi by lowering voltage and clocks if needed.
The stock 105W does ~145W with PBO enabled.
I would make sure the Bios is updated to the latest, and the fan of the CPU can have it's heat exhausted outside the case.
Additionally, adjusting CPU core voltages can lower wattage (and lower frequency a bit too).
In one of my systems (3900x), the CPU got really, really (thermal limit) hot.
As soon as I changed to more modern 3200Mhz RAM, it ran a lot cooler.
I think the other ram, ran at 1,5V overclocked.
The newer RAM runs at 1,2/1,35V (OC).
CPU runs 10C lower, without performance penalty.
And enabling the ECO mode, now runs at 70-75C (another 15C lower).