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That's a large uv with co you got there.
Which cores can you take more voltage away from? The best cores or the worst ones?
all my cores are -30
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That's a large uv with co you got there.
Which cores can you take more voltage away from? The best cores or the worst ones?
Is that even stable in core cycler?all my cores are -30
well its stable in everything I do. from power point, excel, web browsing, video watching, games, zwift and full core workloads.I would be surprised if thats stable, real test is more in idle and doing light tasks . I had mine pass cinebench and other cpu benchmarks at -28 all cores thinking it was stable it
As it does everything I do without any errors it is stable.Id be surprised if it passed core cycler test. Low load boost clock is where issues come with co undervolting
what cooling do you run and what temps you get?As it does everything I do without any errors it is stable.
what cooling do you run and what temps you get?
does zen 3 stop boosting above 80c and hard throttle at 90c or does it just keep boosting up to 90c throttle limit?
Usually the cores that don't boost as high tolerate a larger CO.Looks like the menu for pbo under bios settings>advanced>amd overclocking has a pbo menu which has a curve optimiser that lists all 12 cores.
Doing some testing now with co. Is it normal for the 2nd ccx cores 7-12 on the 5900x to take more negative co than the first ccx?
check some benches to see if its working ok.New 5900X owner here (coming from a 3900X). I plopped it in, left everything stock but changed PBO from "auto" to just "on" in BIOS.
Anything else I should do?
Core Max Performance Percentage curve optimiser
0 174 0
1 174 0
2 170 0
3 166 0
4 162 0
5 158 0
6 145 -12
7 154 -5
8 141 -7
9 137 -10
10 150 -10
11 133 -15
This thread on reddit did wonders for me. First post. Ryzen Master only ever made my system reboot when idle. Maxxed no issues...Bit late to the party joining the thread but figured this is likely the best place to ask...
Basically just want to check if what I've done is ok, I've been playing around with pbo and curve optimiser.
5950x on msi b550 mortar board, 360mm AIO cooler, infinity is 1800 to match 3600 ram.
Set max temp to 80C, everything seems to be stable and nothing obvious stands out on voltages etc
Cinebench r23 multicore is 29600 range, seems to be thermal limited as it's straight lined at 80C in ryzen master and I've seen 30k+ results
Curve Optimiser - All but 2 cores are -28, other two are -19 and -26. Results from ryzen master.
No adjustments to power draw in bios but did set PBO Scalar to x2, didn't seem to do much over x1 in all honesty.
Boost Override +200mhz (ccx 0 and ccx1 now show 5250 instead of 5000 in ryzen master)
PPT - 220
TDC - 170
EDC - 190
No real difference with 250/170/190 and 200/170/190 seems to lose 1.5K multi in r23
So as above, wanting a bit of peace of mind and/or things I could look at to tweak it etc.
I actually did reference that thread when I was doing my 'research' lol.This thread on reddit did wonders for me. First post. Ryzen Master only ever made my system reboot when idle. Maxxed no issues...
Reddit - Dive into anything
www.reddit.com
I set all values in the bios except Max Boost: +125Mhz. I didn't bother. It hits 5150Mhz when just doing normal things like gaming on a few cores. I set and forget it as doing it thing. I used hwmonitor Version 1.44 at the time to find best cores.
All cores prime95 stress test
I run at 3800Mhz/ 1900 IF via XMP 2 and Tmp cut off is 90 c
No point going OCD with it.I actually did reference that thread when I was doing my 'research' lol.
I also seem to be getting higher scores than some in that thread but with lower temps etc...ah the joys of trying to max out the performance of a cpu lol
Literally tried the settings they had on there and it came out worse what it's currently set at.... I'll have another play over the weekend, might lower the +200 boost etc. I don't expect to exactly match, I'm running 128GB of 3600mhz ram for one thing and I've capped mine at 80c.
Looking at HWInfo, the cpu table at the bottom is pretty much the same except my pbo max is 5250 instead of 5150 on yours...
HWInfo confirms my 'best' cores as being the 2 with the -19/-26 pbo.... all the others seem quite happy at -28, could likely do -30..
I'm more concerned with making sure I don't fry it than absolute performance but it seemed happy enough encoding on all cores for around 6 hours earlier today lol
Yeah performance is fine for my needs, figured if it's there I might as well go and grab it type of thing... although trying to hit that magical 30,000 barrier is tempting lol...No point going OCD with it.
Are you ok with your current performance? I wouldn't get obsessed unless you like benching as a hobby