2700X/B450 overclocking tips?

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So I'll confess, I find Ryzen overclocking a bit confusing. Lots of different avenues to go down... do just manually set clockspeed and voltage, do I use PBO, do I use some other random boost mode, do I need LLC etc etc. I've looked at a few guides online but come away unsure on the best approach. The whole 'auto-overclocking' thing where chips dynamically turbo to different speeds is alien to me, I'm never quite sure where I stand and occasionally I try something and then notice voltage has randomly shot up to like 1.5v or whatever which gets me worried.

I'm very much oldschool in terms of how I normally approach overclocking - set vcore to a safe limit, ramp up the bus speed and/or multiplier, run some stability tests, ease off on the voltage if the temps get too high. But with all this dynamic stuff I never really know if the system is stable, maybe I run a test and it seemed stable because it didn't boost as high, or used more voltage or whatever? Plus there are so many options in the BIOS I'm not sure which way to turn.

I realise the above makes me sound like some sort of newbie that shouldn't be tinkering but I've been building and overclocking PCs since the 90s, I've got the risk appetite just can't really get my head round the modern setup. It's kind of got to the stage where I'm just overclocking the RAM and primary timings (which I understand in general albeit not the massive raft of timings you get these days) and not much else, just leaving it to get on with it, but I don't know if that means I'm missing out on a lot of potential. I recently upgraded my GPU which is why I need to eek more out of the CPU now, it is the bottleneck in some cases.
 
2700X isn't worth the effort overclocking according to Gamers Nexus.

If you've got good cooling then just turn on PBO (Precision Boost Overdrive) and you'll get more consistent and better boosting with all the benefits of power savings by downclocking when you're not stressing the chip.

If you don't have the best cooling or VRMs just run stock.

For the RAM I always use the Ryzen DRAM calculator and Thaiphoon Burner. In Thaiphoon Burner I go to the report area, scroll to the bottom and switch to numbers in nanoseconds, then do a complete HTML report. I then import this to the DRAM Calculator, enter my board and CPU and it gives me a really good guide for voltages, timings, etc. The comparison mode is really useful!

Finally you can look at BCLK - which is how we used to overclock in the 90s (northbridge frequency), but I left it alone to be honest as it overclocks the PCIe lanes too and I was too much of a wimp to risk frying another graphics card!
 
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