@Valantar Fully agree with you. The same way I did manage to get my results for the Ryzen 2400G. But there are couple of trials and errors. Sometimes A300 needed some time to reset from failing timings due to BIOS not POSTing.
@yck3110 Indeed you're a lucky one in the 4750G and 3200 regard on X300 Platform. Can you give us more insights?
I would appreciate it, I think many of us would
Possible point of interest:
* Power draw on the wall outlet
* Cinebench 15
* Cinebench R20
* UNIGINE Valley Benchmark
* 3D Mark Timespan (to compare with rubicon)
* Memory Bandwidth (GB/s read/write/(copy))
Well those are couple of points. But points, which would provide us with more understanding of what's possible.
PS: I was able to make A300 to "run just fine" on 3200. YMMV, as Valantar said.
Are the DRAM Voltage options only 2 with 1.x and 1.5V or are you able to set an offset at e.g. +/-0.5V interval?
(I'm not home, maybe those 2 Voltage values are a bit off, but I think you get the point)
Regarding your question about the soc voltage: exactly my experience! Not stable without adjusting SoC Voltage. I had to bump mine to 1.13750V I believe.
Basically, I had the theory that the voltage rails are not good on the mainboard itself. It does not coupe good with the Vdrop once the APU needs bandwidth. The SoC Voltage is actually not directly helping your cpu as much as it helps the board.
More premium boards have BIOS setting called "LLC" - Load Line Calibration, where you can set a level it deals with Vdrops at.
Unfortunately, this is also the point I see no reason in X300, when they do not even redesign the rails and then advertising it o/c-ready. Making a Renoir-ready-Beta for A300 and then see if it works, and then make a "new" product out of it. Seems like a legit marketing move.
I'm looking forward to your findings.
PS: to the point, where Valantar said it's hard to believe Renoir not handling >3200MTs. I agree on that too, since Renoir has the redesigned Memory Controller which features LPDDR4-(466.. I believe) and DDR4 interfaces from Zen2.
Feel free to correct me, if I'm stating something wrong.
Edit: I'm not arguing about your choice to buy X300, it's all fine, I find it also a nice small power house, and if I did not had the experience with A300, I would buy it too
It's a statement towards AsRock.
Additional: I used HWINFO64 to track the SoC vdrop, it's very handy. Vdrop is more pronounced once the iGPU has a load, at low resolution with as much frames as possible to trigger significant Vdrop (since utilization of the SoC based IMC, high Bandwidth, iGPU loves bandwidth). Can you obverse the same behavior?
The UNIGINE Valley Benchmark ist very good at triggering iGPU-induced vdrop spikes. (~0,1V or about 10% on 1.0V defaults)
Additional 2: In A300, once you manually adjusted any frequencies above stock, it did automatically apply 1.1V on the SoC, but it was not enough. (Seems AsRock enginers also observed the Vdrop in testing)
Cheers