My first OC 8350 SUMOUT. Got some advice.
My first OC 8350 SUMOUT. Got some advice.
OCCT provides readings during testing to help identify potential issues. However... 1.75v is too high for the air cooler. AMD recommends keeping it below 1.5v (the actual voltage at the core, or "Vid0" in AOD), but I chose 1.6+v with my 6350 without any problems for several years, especially during continuous full-load video processing. When using FSB/BCLK, ensure the PCIe bus is set to manual and operates at 100MHz; otherwise, your GPU or SATA might face difficulties. It’s also wise to switch everything to manual mode even if you stick with default settings. Additionally, during testing, disable all power-saving and turbo modes in BIOS to avoid inaccurate measurements and possible interference with OC. Once everything stabilizes at your best setting, you can gradually return some features.
I only accept a performance of 4.3ghz. I managed stability at a higher voltage of 4.4 but encountered 65°C. Currently, I’m running at 21.5 multi, with FSB at 200 and RAM set to 1600 with settings 9-9-9-24. The temperature is 2600°C per CPU and 2200 for the CPU frequency. My CPU voltage or core voltage is 1.375v and frequency is 1.225v per core. Everything remained stable after 18 runs using Intel burn at 90% RAM usage.
However, there’s a concern. My graphics card displayed glitches in Witcher 3 on ultra settings. I’m worried it might have been damaged by overclocking the FSB to 210 without manually setting the PCIe to 100. I assumed auto would handle it, but now it’s uncertain.
After 17 runs of Intel burn, all my screen icons moved to Screen One, indicating a possible failure of the graphics driver. This has happened twice. It’s unclear if this signals instability or if NVIDIA drivers are rejecting CPU overclocking software?
So here is the thing. I am playing witcher 3 on ultra and my temps are sitting at 31c... do you reckon I could probably push this thing a little bit more maybe managed to stabilise 4.5ghz? I was hitting 65-67c under load at 4.5 originally... didn't like that at all. Point is if my daily "load" temps are just 31c I could push it a bit more.
Eve 212. I achieved stable overclock at 4.3 @1.375v with temperatures around 59c under IBT. Ram is running at 1600 9-9-9-24 1.5v. CPU/NB is 1.225v (OC failed at 1.20v). DRAM set to 1.5v manually. Using T probe instead of extreme gives 2c lower temps, which is helpful while testing 4.4ghz at the same voltages. RAM stability has been causing discomfort; now it's stable at 1600 with a push to 4.4ghz. NB remains at 2200 and HT at 2600. Changing multi and turning off one cooling setting from auto mode helped improve OC stability. Switching from Extreme to T probe for 4.4ghz testing improved results. Even with idle temps between 11-20c, cores jump quickly and steadily to 61-62 with Extreme instead of Tprobe. I’m trying different settings to extract more performance at 1.375v. Most people report 4.5 at this voltage with mid-50s temps. This chip seems to handle higher power, so temperatures are rising accordingly.
2x8 of 1866. 9-9-9-27. With OCCT load I achieve 55-56c at 4.3ghz. On IBT I get 59 solid. Under gaming loads like Witcher3 ultra settings I’m getting 31c.... just setting 4.4ghz at this voltage, a bit more time to confirm if it’s my RAM settings or the voltage. If my instability came from RAM then it should stay at 4.4ghz @1.375v. This was consistently stable for 2 hours in Prime but then small issues appeared, so I tried IBT and OCCT. Thanks for the heads up, Matt. I thought this way anyway. I believe this chip will remain at 4.3 as I suspect it might fail at 4.4. Just glad it’s finally stable after 20 IBT runs.
Try the ram at 1866 10-10-10-28 , it'll likely run at that.
Thing is no there isn't really a performance difference between 1600 cas 9 & 1866 cas 10 (especially on an am3 build)