Ryzen X3D Voltage/Temp制限。1st Gen 5800X3D/7800X3D: SoIC bonding 1.30V max・Voltage Override BIOS lock・PBO制限(positive-only-15)・Curve Optimizer all-core -30 max・90℃ Tjunction safe・2nd Gen 9800X3D Bottom-stacked SRAM(熱release改善・OC可)・PBO Manual制限解除・5.4GHz boost OC実用域・Voltage 1.45V対応・SOC voltage影響注意 1.20V固定推奨・Cooler max 230W PPT 360mm AIO必要・2026年 9800X3D OCで -10℃低下事例多、X3D温度問題世代別に区別。