With the launch of the Ryzen 3000 series processors, we’ve noticed a distinct confusion among readers and viewers when it comes to the phrases “Precision Boost 2,” “XFR,” “Precision Boost Overdrive,” which is different from Precision Boost, and “AutoOC.” There is also a lot of confusion about what’s considered stock, what PBO even does or if it works at all, and how thermals impact frequency of Ryzen CPUs. Today, we’re demystifying these names and demonstrating the basic behaviors of each solution as tested on two motherboards.
Precision Boost Overdrive is a technology new to Ryzen desktop processors, having first been introduced in Threadripper chips; technically, Ryzen 3000 uses Precision Boost 2. PBO is explicitly different from Precision Boost and Precision Boost 2, which is where a lot of people get confused. “Precision Boost” is not an abbreviation for “Precision Boost Overdrive,” it’s actually a different thing: Precision Boost is like XFR, AMD’s Extended Frequency Range boosting table for boosting a limited number of cores when possible. XFR was introduced with the first Ryzen series CPUs. Precision Boost takes into account three numbers in deciding how many cores can boost and when, and those numbers are PPT, TDC, and EDC, as well as temperature and the chip’s max boost clock. Precision Boost is enabled on a stock CPU, Precision Boost Overdrive is not. What PBO does not ever do is boost the frequency beyond the advertised CPU clocks, which is a major point that people have confused. We’ll quote directly from AMD’s review documentation so that there is no room for confusion:
The optimistic way to read this is that AMD is automatically pushing performance in a way that’s more sensitive and efficient than manual overclocking; the pessimistic way to read it is that it. The AMD Ryzen Master tuneup utility is the easiest way to get your processor performing at peak levels. Unlike Intel, AMD doesn’t lock the clock multiplier on their Ryzen CPUs. Which means you can freely set the clock speed without affecting anything else. AMD offer an astounding amount of customizability here.
Is There A Way To View Amd Auto Tune Reslultseverarts Sound
CPU Amd FX 8350
PSU Cooler Master GX Lite 600W PSU - Low Noise
GPU HD 7970 Power Color
Ram Corsair Vengeance 8GB (2x4GB) DDR3 1866 MHZ
MOBO Gigabyte 970A-DS3 (AMD 970)
Costume build
So my story:
My pc was running kinda good for month or so,I had a couple random restards maybe one blue screen,so I did rune auto tune for some oc testing and had black screen restarted good to go everything was fine so I decided to buy new heatsink becouse I thought it was cooling problem too high temperature, Thermalright 140mm True Spirit Fan with 6x Copper Heat Pipes, so I installed, with a bit too much thermal paste but it was runing just fine so I decided not to go inside agian and started amd catalysts auto-tune on my cpu, wanted to oc a bit with new heatsink, so it was runing for a few minutes (2-4min) and then I lost signal to my monitor it went black and pc was still runing agian, so I did turn off the pc, when I turned back on same thing pc was runing, no beeps no boot no signal to monitor, so I cleard the cmos did not help, so I changed my psu becouse I think is a bit to weak for my build and I cloude have killded, so I got corsair tx750 didint help, so it is MOBO or CPU, but I dont think it is cpu it is hard to kill, I had a look on it looks like new no marks or stuff like that, and auto tune was runing only for a few minutes, I did try reasamble my pc same thing, so what you think? How can I test it CPU or MOBO, no spare parts, it is hard to tell no beeps no boot, no keybord ligths no usb power, so can it be mobo? And cpu fan is spining a bit slow
PS: Sorry for my English