- Oct 28, 2013
- 502
- 150
- 116
I recently installed a Ryzen 5600X on my B550 MSI Gaming Plus MB. I have 32GB Corsair Vengeance LPX at 3200. I just updated the BIOS as it has the newest AGESA 1.1.9.0 which allows undervolting with the Curve Optimizer. After following the instructions from this guy's video, I was able to get it to -24mv stable:
I am just testing it with Cinebench as it crashes consistently when it isn't stable (i.e. at -25mv). I'm not sure if there are others that I should test with, but I also had CoreTemp running while testing so I could see what was going on. It made no difference to stability or the scores if CoreTemp was enabled or not. Max temps were 68C and it boosted to about 4,568MHz max (all cores). I'm going to try gaming with it today.
Of note, when I went ahead and updated to the latest AMD chipset drivers, suddenly Cinebench started crashing even at -24mv. I reverted back one driver to where I was...no more crashes. I always let it run through all of the passes as it would sometimes crash near the end after pass 7 or 8.
The Multicore test in Cinebench showed improvement from 11,131 to 11,696 after under-volting. Single thread showed no improvement, which I've read is to be expected when enabling PBO. I'm wondering now about OC and if it's worth it. I'd only be looking for single thread boosts for old-engine, single thread utilized intensive games I play like DCS World. I don't care about any other performance increases except for gaming, which we all know still usually only utilizes a single core.
I keep seeing 'PBO vs AutoOC'. I thought PBO was AutoOC? Does PBO not always need to be enabled in order to OC? I assume I would set the PBO limits to 'Motherboard' and add a boost override of up to 200MHz? Is this considered 'AutoOC'? There isn't much out there yet for the 5000 series.
I am just testing it with Cinebench as it crashes consistently when it isn't stable (i.e. at -25mv). I'm not sure if there are others that I should test with, but I also had CoreTemp running while testing so I could see what was going on. It made no difference to stability or the scores if CoreTemp was enabled or not. Max temps were 68C and it boosted to about 4,568MHz max (all cores). I'm going to try gaming with it today.
Of note, when I went ahead and updated to the latest AMD chipset drivers, suddenly Cinebench started crashing even at -24mv. I reverted back one driver to where I was...no more crashes. I always let it run through all of the passes as it would sometimes crash near the end after pass 7 or 8.
The Multicore test in Cinebench showed improvement from 11,131 to 11,696 after under-volting. Single thread showed no improvement, which I've read is to be expected when enabling PBO. I'm wondering now about OC and if it's worth it. I'd only be looking for single thread boosts for old-engine, single thread utilized intensive games I play like DCS World. I don't care about any other performance increases except for gaming, which we all know still usually only utilizes a single core.
I keep seeing 'PBO vs AutoOC'. I thought PBO was AutoOC? Does PBO not always need to be enabled in order to OC? I assume I would set the PBO limits to 'Motherboard' and add a boost override of up to 200MHz? Is this considered 'AutoOC'? There isn't much out there yet for the 5000 series.
Last edited: