A bit of assistance with overclocking FX 6300
A bit of assistance with overclocking FX 6300
Hello! I've recently started exploring the possibilities of overclocking my CPU. However, I'm facing challenges in achieving stable performance at or above the standard "core boost" speed.
The processor is an AMD FX 6300, running at 3.5 GHz (4.1 on turbo) – that's its original setting.
I have adequate air cooling directly on the CPU, keeping temperatures below 50°C even during heavy load.
My motherboard is a well-known Gigabyte GA-970A-D3P (version 1.0), and the BIOS is up to date.
The first stable overclock I managed was by adjusting the multiplier from 17.5 to 19.5 (reaching 3.9 GHz) without making any other changes. I've since returned to that setting, but it hasn't provided any meaningful improvement, especially compared to its turbo state.
Here are the BIOS settings:
- BLCK is set to Auto (200 MHz)
- CPU-NB is on Auto (2000 MHz)
- HT-Link is on Auto (2400 MHz)
- Vcore voltage is also on Auto (CPU-Z indicates it fluctuates between 0.99 and 1.45 Volts, which seems excessive for such a low clock speed)
- CPU multiplier defaults at 17.5, turbo at 20.5
- Vcore Loadline Calibration (LLC) is on Auto (disabled)
My attempts so far:
- Disabled all advanced CPU features (turbo, APM, c6, c1e, cool&quiet)
- Left BLCK, NB, HT-Link as Auto
Initial attempt: Set Vcore to 1.3875 and turned off LLC to test with lower voltage. It worked smoothly at the 19.5 multiplier (3.9 GHz).
- Stable performance observed while rendering a video, with all cores operating above 98% load.
- Monitored temperatures via OpenHardwareMonitor and verified voltages using CPU-Z.
- Then tried increasing the multiplier to 21 for a target of 4.2 GHz.
- Initially kept voltage at 1.3875 but experienced an immediate blue screen during rendering.
- Raised voltage to 1.4, still encountered a blue screen after a short time.
- Increased voltage to 1.4125, but again faced a blue screen shortly after.
- Eventually stopped at 1.41 Volts due to uncertainty about the risks of exceeding that level.
- Readings from forums suggest some users have successfully reached up to 4.4–4.5 GHz with similar settings, so I suspect another factor might be involved.
I'm seeking guidance on how to proceed. Achieving 4.2 GHz would be my primary objective – to give this older CPU a new lease on life.
My system details:
- CPU: AMD FX 6300 (cooler: Cooler Master Hyper 103 RR)
- Motherboard: Gigabyte GA-970A-D3P
- Graphics: Gigabyte GTX 960 4GB, factory OC
- RAM: 2×4GB Kingston HyperX blu 1600 MHz + 2×2GB HyperX blu 1600 MHz (dual channel, 1333 MHz, no XMP support)
- Power supply: CoolerMaster 600W Elite Power Black - RS600-ACABM-WB
Was there anything I overlooked?
I've heard some information about that motherboard and its CPU combinations. Most people managed to achieve over 4.2. I adjusted the Vcore to manual, but I couldn't reach 1.4125 V yet. Worth trying to go higher?
I increased the Vcore to 1.425 and it seemed stable during about 20 minutes at a multiplier of 21 (4.2GHz). CPU-Z displayed 1.416 V, occasionally reaching 1.426. The Open HW monitor reported a max temperature of 54.1°C on the CPU and 56.0°C on the NB. Except for the unusually high voltage for stability, it looks like they're in good shape, right?
I understand. It seems you're using water cooling. Unfortunately, I can't help with anything related to my memory settings. They are set for 1600 MHz, but it looks like my motherboard doesn't support both memory types, which prevents XMP from working. Maybe if I unmount the 2*2GB modules... It might make a difference. Sometimes I experience low FPS in games even when GPU and CPU usage is low. Also, I've noticed some sources suggesting people enable cool&quiet after reaching stable overclocking to save power. Does anyone confirm this advice? Could it impact stability?
Thank you for the responses, although I resolved it on my own at the end.