Hardware Signals

Fix GPU fans not spinning on boot. The 30-second zero-RPM diagnostic, stress-test load table, bearing failure signs, and BIOS fan-curve resets for NVIDIA and AMD cards.

Fix ASRock motherboard CPU LED orange/red with no boot. Includes Dr. Debug 2-digit codes for the CPU init phase plus complete LED color troubleshooting steps.

Fix NVIDIA RTX 5070 Ti black screens, driver crashes, and TDR errors. DDU clean install, BIOS settings, PCIe Gen 5 fixes, and power connector checks.

Fix NVIDIA RTX 5090 and 5080 black screen caused by PCIe 5.0 signal integrity issues. Resolve boot failures and crashes by forcing PCIe 4.0 mode in BIOS.

Fix Bluetooth not working or missing from Device Manager after the Windows 11 January 2026 KB5074109 update. Restore Bluetooth connectivity and audio devices.

Fix NVIDIA RTX 5090 and 5080 driver crashes with VIDEO_ENGINE_TIMEOUT_DETECTED error. Resolve black screens, game crashes, and DLSS instability on RTX 50 series GPUs.

Fix ASUS motherboard red CPU LED with no display output. CPU detection failure, socket issues, and boot problems indicated by red CPU debug LED.

Resolve Gigabyte motherboard white VGA LED with no display signal. GPU detection failure, graphics card issues, and monitor no signal errors.

Troubleshoot motherboard not detecting CPU. Socket issues, compatibility problems, and BIOS errors preventing CPU recognition and system boot.

Troubleshoot MSI motherboard orange DRAM LED preventing boot. RAM detection failure, memory slot issues, and boot failure indicated by orange debug LED.

Fix PC that powers on but monitor shows no display. Black screen issues, POST failures, and connection problems preventing video output at startup.