9800X3D and 7800X3D operate efficiently at 75W on ASRock boards
9800X3D and 7800X3D operate efficiently at 75W on ASRock boards
Hello, over the past few days I've encountered an issue with my 7800X3D and 9800X3D on ASrock B650 LiveMixer and ASrock X870E Taichi lite boards. (Two PC builds using different PSUs, etc.). I began to notice a clear drop in performance during games. While looking for the cause, benchmarking, and stress tests, I observed that both CPUs hit a maximum power draw of 75W. I haven't adjusted any settings. I didn't update drivers or anything else. In the BIOS I checked all CPU-related parameters such as Eco mode and max TDP, but I didn't see the 75W limit enabled anywhere. I followed these steps one after another: 1. Restored BIOS to factory defaults. 2. Removed the battery to clean CMOS. 3. Applied a profile in the BIOS where both CPU setups were running at full speed. 4. Updated the BIOS to the latest release. 5. Set the "ECO" mode in BIOS to 105W, but still couldn't exceed 75W and performance remained unchanged. After each adjustment I tested, the outcome stayed the same. The temperatures match the 75W power usage, while other HWinfo data look accurate. I'm unsure what to do next. Appreciate any suggestions or solutions you can offer.
Do you have an alternative power supply you can replace to check if it’s the faulty component? Also, consider repositioning the PSU cable connections at both ends. Make sure your power supply isn’t configured in eco mode, as some models have a visible switch that might be accidentally activated during power adjustments.
Sure, I'm guessing you're asking about how your CPU gets powered—whether it's using 4 or 8 pins from the power supply to the motherboard.
I have multiple power sources on each computer. I attempted to unplug and plug them back in again.