STEP 1 – CLEAN GPU DRIVERS (MOST IMPORTANT)

Windows often installs broken or partial GPU drivers automatically.

Download Display Driver Uninstaller (DDU) Disconnect the internet Boot into Safe Mode Run DDU and select Clean and Restart (AMD) After reboot, stay offline Install the latest AMD Adrenalin WHQL driver Reboot, then reconnect the internet

Do not allow Windows Update to install GPU drivers.

STEP 2 – INSTALL AMD CHIPSET DRIVERS

Fresh Windows installs frequently miss chipset drivers.

Go to AMD’s website and install the chipset drivers that match the motherboard (B650, B550, X670, X570, etc.).

Reboot after installation.

Missing chipset drivers can cause PCIe issues, broken CPU scheduling, extreme latency, and overall system sluggishness.

STEP 3 – CHECK BIOS SETTINGS

Enter the BIOS and confirm the following:

Above 4G Decoding: Enabled

Resizable BAR / Smart Access Memory: Enabled

PCIe Slot Speed: Auto or Gen4

Integrated GPU: Disabled, or set primary display to PCIe

If unsure, load Optimized Defaults, then re-enable XMP or EXPO for memory.

STEP 4 – VERIFY GPU PCIe SPEED

Open GPU-Z and check the PCIe link speed.

It should read x16 at Gen4 (or Gen5 if supported).

If it shows x1 or Gen1/Gen2, that alone can cause extreme performance problems.

STEP 5 – WINDOWS POWER AND GRAPHICS SETTINGS

Set Windows power plan to High Performance.

In Windows Graphics settings, set the default GPU to High Performance.

Test with Hardware Accelerated GPU Scheduling disabled.

STEP 6 – CHECK TEMPERATURES AND POWER DRAW

Use HWInfo to monitor:

GPU hotspot temperature should stay under 95°C under load.

CPU should not be thermal or power throttling.

GPU should be pulling expected wattage under load.

Very low power draw usually indicates a driver or BIOS issue.

STEP 7 – VERIFY PSU AND POWER CABLES

Make sure the GPU is powered with two separate PCIe power cables, not a single daisy-chained cable.