It doesn't appear to include PBO.
It doesn't appear to include PBO.
I'm checking many Reddit discussions about PBO and PBO2. Some mention a third-party tool, but what I'm curious about is whether the 3D driver supports it by default. Steve mentioned he didn't use PBO, yet he liked it. My rig (B550M Mortar) has PBO, but performance numbers don’t change much—CPU runs at 4450MHz, Cinebench stays steady, temps around 82-85°C, and throttling isn’t reported. RAM speeds are also consistent whether you're at 2133MHz or 3600MHz. Overall it seems better than expected. Regarding 3D support, I’m wondering if there’s an option to undervolt or adjust clock off in BIOS—it’s not exactly overclocking, right?
Technically you can adjust BIOS settings, but it's not recommended. Ryzen processors excel at clock stretching with negative voltage offsets, and without the BIOS curve optimizer, that approach isn't advisable. PBO options exist in Ryzen Master, allowing you to fine-tune the curve and possibly impose a power cap for genuine undervolting.
oh, ok yeah, i haven't thought about RM tbh... it never worked for me on my b350 board... not sure i want to try that again lol (it also made my pc completely unbootable until i reset cmos, which wasn't fun...) hmm, well I heard about the stretching, but from all my testing the 3600 did not only run a lot cooler with like -200hz and -50mv (iirc) i also got higher fps/better scores in most applications (i did it mainly for the temps though) and i also actually saw *tiny* improvements with RAM overclocking... Well, so far i dont see any bad temps... 85c cinebench / 50-60c while gaming, so there isnt really a need for undervolting it seems, i was just curious (and im still confused by this MSI BIOS , lol, but I'll just leave it as is for now i suppose)
You’ll notice small gains if you focus on refining the non-essential parts rather than over-tuning the basic settings. A 7% boost on some systems is achievable, but it’s important to adjust correctly and avoid squandering your available voltage headroom on low-quality components. Don’t waste time tuning the subtimings unless necessary; for stable applications that resist voltage changes (like solid state drives, hard drives, or CDs), aim for around 1.7V max—just under that risk a slight performance drop above 1.7V. For most cases, stick to 1.6V at most, since returns diminish. Keep the fan speed below 1.5V to prevent overheating. Ignore the primaries for now; their impact is minimal compared to tuning the secondary and tertiary elements—especially trfc, sr dr, dd, r/w, pre/act, trrd-l/s, tfaw, etc. Set TRISFI to its maximum (65536) if you can maintain reasonable temperatures, as this affects RAM refresh rates and helps prevent data loss when RAM heats up. This setting also improves performance, though it adds a bit of sensitivity to temperature. Remember, the subtimings matter more than the primaries because they’re used far more often, while primaries see little use. If you can’t manage heat well, search for an OC profile suited to your RAM model—look in the burner settings or check manufacturer guides. For a quick fix, just find an OC profile that matches your processor and keep it stable.
Absolutely, I understand your points. It’s clear you value timing and details. I remember my old motherboard BIOS was problematic—probably not worth much for a 60 dollar setup, which didn’t help with my RAM overclocking attempts. I was thrilled when I finally reached 3600mhz on my new parts! (And yes, I used to have a Hyundai before.) Maybe I’ll give it another shot later, especially if the new board is more reliable. I hope those tips will help. For now, it seems best to keep things steady—took me a whole day to get Bluetooth working already! (I think it’s working!) Also, I’m just wondering about the PBO feature... I think the real challenge will be with RPCS3—4.4ghz, 8 cores, that should make a difference.
I'm matching dies with a 5800x3d configuration. The 5800x3d doesn't scale well when RAM exceeds 3200 due to the large cache, which uses up a lot of memory and wastes resources. That's a significant loss. I just set the maximum multiplier for the 5800x3d and ran it in static allcore. If you want to overclock, you need to use bclk, but I don't think it's worth it unless you're going beyond 105bclk. Avoid using your actual OS drive; instead, use just a backup in case of data corruption. High bclk isn't just random—it's proven to cause issues, like OS corruption during high-frequency operations, as seen in some Buildzoids videos.
yeah, but I had gotten it for my R5 3600... and i did see some small improvements over the corsair/ hynix trash ™ i had before lol. (not "worth it" but that was my curiosity...) That's why its running at 2133mhz right now! ; D cause i don't really care about the ~200 or so random points in CB lol. And for testing purposes etc, I think it might be actually a good idea to run it at stock. At 3200 XMP i had the feeling games were a bit stuttery, but that could also have been the messed up Bluetooth drivers but that is known, oc can lead to instabilities, especially RAM, ie "system memory".... especially when people overdo it, dont cool them right etc... Also, while im really curious about this all, my goal is typically always to lower heat and power consumption... in my experience that's also the most stable experience when playing games , and you get higher clockspeeds anyways, if done right, no overclocking necessary (RAM / subtimings might be an outlier here, but also depends on the games/applications)
Certainly it exceeds 3200 performance. It doesn’t behave like a standard Zen 3 chip, yet the improvements are worth pursuing. Like any other Zen 3 processor, it thrives on precise clock speeds that B-Die provides. The performance boost isn’t as high as a typical Zen 3 component, but it still adds up. Edit: No PBO detected in the BIOS—they managed to secure the stability.
I'm not claiming it's not possible, just that I don't perceive the advantages clearly... My games still maintain 60 or 120fps, my recordings remain stable despite OBS interference, and my GPU handles encoding without sudden speed drops. The system runs smoothly from an AMD X64 setup with Windows Vista, though encoding via CPU feels slower than NVENC. My GPU stays around 85°C without throttling, and at 4.3GHz it's still a bit faster than my 3600MHz processor in this scenario. It's a bit cooler but not significantly so. My board works fine—it powers on, but doesn't seem to improve performance.