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x470 Taichi - P2.0 XFR/PBO
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Delta9k View Drop Down
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    Posted: 27 Dec 2018 at 1:42pm
New owner of a x470 Taichi paired with a 2700X. I am looking for information regarding configuring XFR/PBO. This BIOS is a bit different from my C7H and I'm struggling some finding my way around and translating the available options.

In OC tweaker:
Changed OC mode to Manual
Left the APU/PCI freq at 100
Left CPU Freq and Voltage to Auto AMD CBS
SMT mode Enabled

Enabled XMP profile for RAM
DRAM 3200

Advanced:
AMD CBS \NBIO Common Options\XFR Enhancement
I accepted and set to Enable

I left everything else at defaults.

System is working pretty well and almost as good as my C7H also with a 2700X (I think that chip has better silicon but I am not swapping cpu's to confirm. I think it's just my unfamiliarity with the ASRock eco system that's holding me back some. I keep thinking there is more that I could be doing (not including mem tuning, I'll do that after CPU is set). Any helpful advice is welcome as to what I could look at. I do not want all core OC. I like XFR/PBO and as it stands what I stumbled through is not doing all that bad. I just think there's more for to look at.

https://i.imgur.com/ifrSxzt.jpg
X470 Taichi, 2700X, 16GB GSkill c14 @3200, 960Evo 500, 860Evo 1TB, GTX1080, RM850x, Celsius S36, Define R6 usb-c
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Delta9k View Drop Down
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Edit: I did not make the link to my screen shot a "link"
X470 Taichi, 2700X, 16GB GSkill c14 @3200, 960Evo 500, 860Evo 1TB, GTX1080, RM850x, Celsius S36, Define R6 usb-c
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gizmic View Drop Down
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i've been told to reduce the cpu vcore further to get more clocks

other than pstates and ram timings its pretty much it
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Originally posted by gizmic gizmic wrote:

i've been told to reduce the cpu vcore further to get more clocks

other than pstates and ram timings its pretty much it


Thanks - I did a little bit of tuning. I added an offset -0.08750 which interestingly enough raised my VID up bit but not dramatic but from 1.444 to 1.456V For grins I tried adding some bclk. I was only stable at 101 something in my system did not like 102 it would lock up after 5 mins or so in the OS. But 101 was stable for 90 minutes of prime95. I did notice that Core Temp was displaying some of my core freqs as 7447 MHz ... so that app at least was not liking it and I did not do any diskmark bench's to see if pcie i/o was stable with my nvme or sata's but I did get a decent cb score.

I ended up dropping the bclk back to 100 because I know I'm solid there. I did a couple cb passes there and Im hitting mid 1881-1886 consistently.. I'll keep playing with the offsets and tighten the timings on the me kit. Which I had up to 3400 with the XMP cl14 3200 timings no worries.

https://imgur.com/rTjVvRH
X470 Taichi, 2700X, 16GB GSkill c14 @3200, 960Evo 500, 860Evo 1TB, GTX1080, RM850x, Celsius S36, Define R6 usb-c
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Ended up with the following:

Left BCLK at 100
Enabled PBO
vcore offest -0.08750
Tune ram via Ryzen calculator, fast settings.
DRAM 3.365

All core under load 4175
PBO boosting to 4350
idle 2200

I may want to try dropping ram to 3.55v but for the sake of this thread I'm done.
X470 Taichi, 2700X, 16GB GSkill c14 @3200, 960Evo 500, 860Evo 1TB, GTX1080, RM850x, Celsius S36, Define R6 usb-c
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gizmic View Drop Down
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here's mine
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Points: 45 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Nemesis.ie Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2019 at 3:09pm
It seems the negative offset is limite to -0.1V.

It would be great if this could be increased so we can try even lower.

Given the chips have been out for over a year and e.g. my new one is on stepping B2, the latest (good quality) ones may well be able to run at an even lower voltage.
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its a lottery if you can go lower -0.1v my system isn't stable lower than -0.075v
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Absolutely.

Every chip/setup is different. It's good to have options though. :)
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