FX-8350 Overclock 4.6ghz: Instability linked to RAM speed?
FX-8350 Overclock 4.6ghz: Instability linked to RAM speed?
Well I suppose so.
Are there any suggestions on how to maintain a stable vcore? I want to keep it under 65°C during gaming, but I need to push the chip as much as possible. That means needing low yet steady voltages.
Romeru:
I think so too. But is there anyone with advice on how to keep my vcore low? I want to stay under 65 c while gaming, but push the chip as much as possible. That means needing low but steady voltages.
Well, AMD CPUs can be a bit tricky sometimes, so there isn't a clear solution. But I believe I can share some tips.
First, stability often comes from your northbridge. You might be able to stabilize the AMD CPU (like Bulldozer, Piledriver, Deneb, Thuban) by adjusting the NB frequency, changing the NB voltage, and tweaking RAM voltage, speed, and timings. Sometimes you can go beyond a certain step and find that the system is much more stable at a higher frequency, like 4.9ghz instead of 4.6ghz. I've noticed this with the Vishera, and it might work similarly with Bulldozer.
Also, check your FSB speed. Sometimes overclocking the system using the FSB speed can give you higher and more stable clocks at a lower vcore, rather than relying solely on vcore. Of course, this means you'll need to adjust your CPU/NB voltage as well.
In the end, working with an AMD CPU can take weeks of tweaking to get the best performance without overheating or wasting power.
And finally, what about your PSU? I asked before but you didn't reply. It's possible your power supply isn't delivering enough stable power on the 12V rail, which makes it hard to keep the CPU stable and overclock. A good quality PSU could help if you can't fix the other settings.
The post needs manual timing adjustments in the bios, I'm not sure if you've already done it but it helped me go from 1.44 vcore back to 1.38 with 4.6Ghz stable. Before applying the changes, I was experiencing crashes every time I ran Prime.
Lol ! almost 3 years ago man... I upgraded from fx8350 to i5 4670k and now I'm using an i7 4790k. But honestly, answering your question... just check your memory RAM model and search for the timings online. Some RAMs have a sticker with the memory timings there, usually something like "9-9-9-24" depending on whether they're c9 or c10, etc.
PS: You don't need to change the timing unless you're replacing the RAM itself, otherwise just stick with the default timing.