Overclocking AMD FX-6300
Overclocking AMD FX-6300
I wanted to mention something about P95.... People often focus too much on P95 stability when they're just gaming, but there are situations where it might be just as crucial. It's useful to confirm whether your setup delivers the best possible performance. This means not just speed optimization or overclocking, but also ensuring stability for the long term.
This matters especially if you're handling tasks that require extended periods of intensive work—such as large video encoding queues or lengthy scene renderings. These can run for days at high intensity. If your system remains stable for more than two hours, you'll feel confident it won't fail midway through such a long job. I might not stop working even if it's not P95 stable, but in situations where time is valuable, having some assurance is beneficial.
I configured the LLC as "regular" and reduced the voltage to 1.4125... it started working properly. I could run Xplane11 (about 50% CPU usage) for more than an hour without issues. The CPU temperature remained below 50°C.
During a P95 stress test, it crashed right away.
I attempted to increase the GHZ to 4.4 at 1.4125v but failed to boot. I plan to experiment further to find better results.
Please clarify your P95 logic and consider moving the extra fan over the VRM area.
Just a brief note on the setup:
I've adjusted several parameters and found this configuration stable:
LLC=Extreme, OC=4.5GHz, CPU Volts=1.3925.
Completed an AIDA64 stress test for 30 minutes without problems. P95 isn't tested yet, but it probably wouldn't pass.
CPU temperature reached a maximum of 40°C during the A64 stress test; it drops to around 35°C if I take off the front cover of the PC case (where the radiator is installed).
zonian :
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The AIDA64 stress test completed in 30 minutes without any problems. I haven't attempted P95, but it seems likely it would fail.
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The AIDA64 stress test was just as demanding as P95... especially when using the co-processor and cache tests, though memory testing was skipped. It mostly involved running small FFTs nested within processor cache, similar to P95's small FFT checks. Of course, AIDA64 needs to be FX aware to properly load the Bulldozer core caches. It definitely had Ryzen awareness when I still had a trial license.
At 1.392 volts you have room to increase it if needed: I've seen reports of bit-miners running Vishera cores at 1.55 volts for extended periods at 4.7-5.0Ghz without issues.
AIDA64 Stress test proved just as demanding as P95... especially when using co-processor and cache tests, though memory testing was omitted. It mostly involved running small FFTs nested inside processor cache, similar to P95 small FFT checks. Of course, Aida64 needs to be FX aware to properly load the Bulldozer caches. Ryzen was definitely considered for me when I still had a trial license. At 1.392 volts you have room to increase it if desired; I've seen bit-miners running Vishera cores at 1.55 volts for extended periods at 4.7-5.0Ghz without issues. Wow... do you know what temperatures these components reached with 1.55V/5.0GHz? I haven't pushed anything higher than 4.5GHz yet, but maybe I'll experiment more this weekend.
zonian :
drea.drechsler :
The AIDA64 stress test proved to be quite demanding, similar to P95, especially when using co-processor and cache tests but excluding memory testing. It mainly involved running small FFTs nested within processor cache, just like in P95 small FFT evaluations. Of course, the AIDA64 needs to be aware of FX to properly load the Bulldozer core caches. Ryzen was definitely considered when I still had a trial license, hehe.
At 1.392 volts you have room to increase it if desired. I've seen reports that bit-miners run Vishera cores at 1.55 volts for extended periods at 4.7-5.0Ghz without issues.
Wow...do you know the temperatures these components were operating at with those settings? I haven't pushed anything higher than 4.5GHz yet, but maybe I'll experiment more this weekend...
I didn't capture that data, but I'm sure they'd focus on stability limits rather than hardware lifespan. Just enough hashes to complete in the shortest time.
Reading indicates 1.55V is the upper limit for FX-6300, considering safe operating temperatures for VRM and LLC load line calibration. Setting it to 1.5V requires maintaining close proximity to the chosen voltage, which is advised. Temperatures for the FX typically reach around 70°C, and it's usually recommended to keep them below that threshold.
So experimenting a bit more with the OC this morning...
Woke up to around 4.8GHz but had to boost voltage to 1.4925 for a steady run at that speed...
With the AMD Overdrive stability test, CPU thermal margins were at 22C after 15 minutes. The CPU temperatures in AIDA64 and HWinfo64 were roughly 48C.
I think calculating from these values shows the max temp for the FX-6300 matches the 70C figure.
Perhaps later I’ll attempt to read the temperature directly from my VRM. I’ve added heat sinks and mounted fans, so I’m confident those readings are within range.
Edit: The back of the MOBO behind the VRM is at 45C after 15 minutes in the AMD Overdrive stability test (same as CPU temp when the PC case back is removed).