The FX-9590 CPU maintains its speed during idle when it is overclocked.
The FX-9590 CPU maintains its speed during idle when it is overclocked.
I have an overclocked FX-9590 CPU running at 4.8Ghz paired with a Sabertooth 990FX R2.0 motherboard. The automatic underclocking during idle works fine as long as I don’t try to block the chip. Once I do, it instantly returns to 4.8Ghz. I’ve adjusted numerous settings to try and balance both components, but nothing seems to resolve the issue. I haven’t changed any BIOS settings for Intel chips, and I’m running out of options.
PC specifications:
- OS: Windows 10 Pro x64
- PSU: 1000w Gold certified
- Motherboard: Sabertooth 990FX R2.0
- CPU: AMD FX 9590 8-core 4.8Ghz
- GPU: Sapphire Radeon RX-480 8GB
- RAM: 16GB high-performance DDR3 1600
You own the FX-9590, a powerful CPU that demands specific conditions. While you have sufficient memory for the Beast (FX-9590), its OC performance hinges on your tower case, liquid cooling options, PSU quality, efficiency, and proper BIOS configurations. Start with BIOS at 4.7GHz. Update BIOS and reset CMOS to default. In BIOS, verify settings and adjust as needed. The default setting is Auto; switch to D.O.C.P. for your initial Windows boot. After the post-boot cycle, CMOS will check your hardware stability. D.O.C.P. defines CPU bus and ratio, optimizing RAM usage effectively.
Are you disabling Cool and Quiet or other power controls while overclocking?
Do you disable Cool and Quiet or any other power controls while overclocking? I recently tried turning them back on and kept all my OC settings unchanged. It still shows a max speed of 4.8Ghz (my desired OC), but it only runs at 4.7Ghz (stock) under full load, never dropping below 4.7 at idle, which isn’t ideal.
You own an FX-9590, a powerful CPU that demands specific conditions to reach its full potential. While it offers ample memory for the Beast configuration, overall performance hinges on the tower case, liquid cooling options, your power supply, efficiency ratings, and proper BIOS configurations. The stock BIOS runs at 4.7GHz; make sure it’s updated and that CMOS is reset to its default value.
Review the BIOS settings and adjust them as needed. Navigate to Bios > AI OC Tuner and set the default to D.O.C.P. for your first Windows boot—this setting should be changed from Auto to ensure a stable start. After the post-boot CMOS check, it will assess hardware stability and suggest optimal settings similar to XMP.
D.O.C.P. configures the CPU bus and ratio while fine-tuning RAM performance, making it ideal for initial training runs. It provides stability but may not be the peak for speed. It’s essential for creating a reliable baseline at default settings and as a reference under load.
Run stress tests using AIDA64 and HWInfo to evaluate performance. Once stable, switch back to Bios > AI OC Tuner and select Manual mode. Keep the BCLK constant, adjust only the multiplier to 24 (resulting in 4800 MHz), which is 4.8GHz. Avoid random adjustments.
Set your RAM frequency to 1600MHz and configure C-state settings accordingly. Initially disable power-saving features like C1E and any other quiet modes. Ensure all cores are active, set the core voltage at 1.375V with incremental adjustments up to 1.4V, and enable LLC with a Load Line Calibration of High. Allow CPU current capacity to reach 120%.
Leave other parameters as Auto for now, save your changes, exit via F10, boot into Windows, and perform the stress test again. If successful, store a profile in Bios.
Please share your AIDA64 results or any testing outcomes. If you achieve consistent 4.8GHz performance with stable operation and adequate cooling, your RX-480 is a highly capable machine.