FX-8350 Overclock 4.6ghz: Instability linked to RAM speed?
FX-8350 Overclock 4.6ghz: Instability linked to RAM speed?
Hey, I've boosted my FX 8350 to 4.6ghz at the default voltage (1.3500). At 4.5ghz it worked fine, with the FSB at 200mhz (default). But at 4.6ghz I started seeing hardware issues. I don't think it's due to low voltage, because:
- When doing a blend test in Prime95 I encounter multiple hardware failures on my cores.
- Small FFT tests (with limited RAM) seemed stable for about 30 minutes.
- I've heard adjusting RAM clocks can help with high overclocks.
- I usually don<|pad|>'s RAM settings and used (profile1) which sets the timing for me. It's currently at 1600mhz (default).
- Specs:
- FX-8350 black edition
- Asus GeForce GTX 660 2 GB
- Corsair Vengeance 8 GB 1600mhz
- GA-990FXA-UD3
- Power supply: 600W
Any advice would be greatly appreciated!
Your CPU seems to be running at an undervolt level. It’s unclear why you’re not considering that option. Achieving a 8350 at 4.6 and even running Prime without hard crashes on stock voltage is quite impressive. You have a solid CPU there—possibly even reaching 5.0. Just need to adjust the Vcore a bit. Try increasing it and observe the results.
Your CPU seems to be running at a lower voltage than expected. It’s unclear why that possibility is being overlooked. Achieving stable performance at 8350 with a voltage of 4.6 and even running Prime without hard crashes is quite impressive. You have a solid CPU there—possibly you could push it up to 5.0, but you’ll need to increase the Vcore slightly. Try adjusting it and observe the results.
As a note, what is your 600W PSU? Even a decent one may struggle with your setup. If it’s not powerful enough, your PSU might not deliver the necessary wattage for your system. You have a 300W CPU under load and a 200W GPU under heavy use—though it’s unlikely you’ll reach full capacity at the same time, you’re approaching the limits of a mid or low-end 600W PSU.
Increase the voltage by one unit and it should resolve the issue.
Sure, I adjusted the voltage without touching anything else, but the issue still happens. This time only one core failed during the blend test. I increased the voltage three times and reached 1.42 volts. The only difference is that just one core failed. I plan to lower the RAM speed to 1333mhz and check if that makes a difference. I'm still open to your help.
Well, the situation is this: when you increase the voltage and something breaks, you raise it by one. If your component failed at 1.375, then increase it by just one, not three. Set it to 1.4v and observe the outcome. If everything functions properly, aim for a 5ghz speed.
I just tried adjusting things and reached 1.375, but it didn’t work. The 1.4000 also failed. Reducing the RAM speed to 1333mhz didn’t help either. I’ll keep trying higher voltages to see if it makes a difference.
This device requires a lot of power. I had to reach 1.47 volts for stability, but thanks to the LLC being set to extreme it drops to 1.488 volts. Now it's stable, but I don't want to keep it in this state. After a few minutes, I increased it to 60°C.