Performance remains slow despite BIOS support.
Performance remains slow despite BIOS support.
Hello, just completed assembling my new PC with the following specs: Ryzen 9 9900x B850 Aorus Elite Wi-Fi 7 64GB Crucial Pro OC DDR5 Samsung 990 Evo 1TB Arctic Liquid Freezer Pro 360mm Corsair RM 750x. The problems began in the BIOS, where the interface felt slow and I observed the CPU voltage staying below 0.66 volts—likely the root cause. When I installed Windows 11 on the new drive, it froze and required a restart. Using the old SSD from my previous build allowed me to log into Windows 10, where I found the CPU clock stuck at 0.54GHz (Bios displayed 4400MHz). I suspect this isn’t a cooling issue since BIOS temperatures stayed under 40°C. Clearing the CMOS multiple times helped, but even with just one RAM stick and without the SSD, the BIOS remained sluggish, sometimes taking minutes for BIOS pages to load. I also updated the BIOS to the latest version (F6), which temporarily resolved the issue. After restarting in Windows 10 and checking Task Manager, the clock returned to 0.54GHz after a few minutes. Could you assist further?
It seems there might be a problem with the CPU or a board issue, possibly bent pins. Try reinstalling and verify it first.
It could stem from either an incompatible BIOS setup or a problematic Windows installation. Using a boot drive from another machine might cause issues, and if you're unable to install it at all, the problem may lie with the CPU itself.
It seems the issue might be with the CPU or BIOS. After updating the BIOS and testing on another PC, performance dropped again. Removing the old drive caused lagging as well. You could try flashing the BIOS or running diagnostics to confirm if the problem lies there. Since you don’t have another system, consider proceeding with a BIOS update or repair.
It's okay to re-flash the BIOS, but if you can't set up Windows, consider returning the CPU for a replacement if you don't have another one to try.
When I began the PC, the BIOS operated without issues. I successfully installed Windows 11 and cleared all storage devices. However, during the latest setup, the clock was set to 0.6GHz.
Intel and AMD systems both face a related issue known as BD PROCHOT. It enables external sensors to send a throttling command directly to the CPU, mimicking thermal throttling even when the CPU isn't overheating. This is essentially a false warning signal. Similar behavior can occur on AMD platforms, referred to as PROCHOT Ext (External). Using HWiNFO might help detect this condition. Often, replacing the motherboard becomes the only solution once a sensor fails.
This CPU behavior of staying stuck at 0.54GHz after power-on usually indicates a BIOS or power delivery issue, not a cooling problem. Verify your RAM is compatible with the G-VL-850 board. DDR5 instability may force heavy downclocking. Reset CMOS and run everything with default settings, excluding any overclocking features. Ensure your CPU connectors have both 8-pin and optional 4-pin if present. In BIOS, look for Power Supply Idle Control or Global states—adjusting them can sometimes resolve the issue. Test with a single SSD to eliminate storage driver conflicts. Since the F6 update only provided a temporary fix, consider reverting to an older BIOS version until AGESA updates are complete. Temperatures appear normal, suggesting a BIOS bug or memory compatibility challenge with the new platform.