Question PBO shuts down after 10-15 seconds on Windows
Question PBO shuts down after 10-15 seconds on Windows
So recently I assembled this system:
Memory: Gigabyte x470 Ultra Gaming
Processor: Ryzen 5 2600X
Cooler: BeQuiet! Pure Rock
RAM: Two 8GB 3000MHz units from Corsair Vengeance LPX
GPU: RX 480
Windows runs smoothly on an SSD with 860 EVO
PS: I have a Thermaltake 650W power supply
The BIOS update came with the motherboard, so no extra steps were needed. After that, I attempted overclocking and switched to XMP for RAM and PBO for CPU as recommended. I also installed AMD Ryzen Master to track performance and temperatures, but noticed an issue. Both CPU-Z and Ryzen Master indicated the CPU initially entered PBO mode, reaching around 4.05–4.1GHz, then automatically switched to manual mode at a constant 3.8GHz. Is this normal behavior? Did I make a mistake during overclocking, or is there a hardware limitation?
PS: After researching more about PBO overclocking, the only workaround I considered was removing Ryzen Master. Many users reported problems or failure to work, so I decided to delete it. This cleared the CMOS and allowed me to maintain speeds of 4.2–4.25GHz for about an hour. For anyone facing the same issue, this might be my solution... Ryzen Master apparently blocked PBO functionality!
So a few days ago I assembled this PC:
Memory: Gigabyte x470 Ultra Gaming
Processor: Ryzen 5 2600X
Cooler: BeQuiet! Pure Rock
RAM: 2x8 3000mhz Corsair Vengeance LPX
GPU: RX 480
Windows boots from an SSD: 860 evo
PS: Some Thermaltake 650W
The BIOS came with the latest update, so I didn’t need to adjust anything there. I updated and installed all the drivers. Then I attempted overclocking, going into the BIOS and enabling XMP for RAM and PBO for CPU because I found it to be a more effective approach overall than manual overclocking. I also installed AMD Ryzen Master to track the performance and temperatures during the process, but noticed an issue. Both CPU-Z and Ryzen Master indicated that the CPU initially starts in PBO mode and reaches around 4.05 - 4.1Ghz before locking into manual mode, which then stabilizes at about 3.8Ghz. Is this normal behavior? Have I made a mistake with the overclocking, or is there a hardware limitation?
Have you considered adjusting the CPU core voltage negative offset? Start small, as it slightly reduces core voltage but can help maintain cooler temperatures and extend boost times. There are also core power and current settings (EDC) that could be tweaked, though I’m not sure how to change them without more details.
I recently assembled this PC:
Processor: Gigabyte x470 Ultra Gaming
CPU: Ryzen 5 2600X
Cooler: BeQuiet! Pure Rock
RAM: 2x8 3000mhz Corsair Vengeance LPX
GPU: RX 480
Windows runs from an SSD: 860 evo
Power supply: Some Thermaltake 650W
BIOS update: The motherboard came with the latest BIOS, so no further changes were needed. I updated drivers and installed everything. Then I attempted overclocking, adjusting XMP for RAM and PBO for CPU as recommended. I also used AMD Ryzen Master to track performance and temperatures. However, I encountered an issue where the CPU initially enters PBO mode, then drops to around 4.05–4.1Ghz before locking into manual mode at approximately 3.8Ghz. Is this normal behavior? Did I make a mistake during overclocking, or is there a hardware concern?
Have you considered adjusting the CPU core voltage negative offset? Start with a small value, as it can lower core voltages slightly while helping with cooling and stability. There are also settings for core power and current (EDC) that might need tweaking, though I’m not sure how to access them.
I also tried setting a CPU core voltage offset of about 90mV since the initial 100mV didn’t stabilize, resulting in the same PBO-to-manual transition at around 3.8GHz without further adjustment. It seems the issue isn’t related to temperature.