I recently bought a placeholder Ryzen 7700 for my AM5 platform until I could buy a better one and decided to play around with PBO. I ran 1usmus's Hydra diagnostics and it gave me -50 on all cores. I disbelieved the result and configured PBO directly in the BIOS. I used it for days without any problems, completely stable.
Edit: Run OCCT, 3 Cycles with 105W. Multi, Core-cycle and AVX512. Stable, so far.
Edit2: 1 hour+ Prime95 stress test – https://imgur.com/a/JXlJjQ0
Just to be sure, I ran the detailed diagnostics for a few hours.
Is this common for Zen4? I've seen people extremely happy to be able to optimize to -40.
“`
Preliminary results…
CORE#0 CPPC: 150 AMD CO: -50
CORE#1 CPPC: 167 AMD CO: -50
CORE#2 CPPC: 154 AMD CO: -50
CORE#3 CPPC: 167 AMD CO: -50
CORE#4 CPPC: 158 AMD CO: -50
CORE#5 CPPC: 163 AMD CO: -50
CORE#6 CPPC: 141 AMD CO: -50
CORE#7 CPPC: 146 AMD CO: -50
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#3 (167) AMD CO: -50 VERIFICATION
10:23:12 TEST#01 – OK EFREQ: 5119 TEMP: 41.8 TEL: 1.049 DLDO: 1.007 POW: 6.6 CAC: 0.0
10:23:44 TEST#02 – OK EFREQ: 5144 TEMP: 41.7 TEL: 1.052 DLDO: 1.014 POW: 6.7 CAC: 0.0
10:24:17 TEST#03 – OK EFREQ: 5145 TEMP: 44.6 TEL: 1.051 DLDO: 1.014 POW: 9.0 CAC: 0.0
10:24:49 TEST#04 – OK EFREQ: 5135 TEMP: 43.8 TEL: 1.054 DLDO: 1.012 POW: 7.8 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#1 (167) AMD CO: -50 VERIFICATION
10:25:21 TEST#01 – OK EFREQ: 5131 TEMP: 41.8 TEL: 1.046 DLDO: 1.006 POW: 6.6 CAC: 0.0
10:25:53 TEST#02 – OK EFREQ: 5137 TEMP: 41.2 TEL: 1.046 DLDO: 1.007 POW: 6.6 CAC: 0.0
10:26:25 TEST#03 – OK EFREQ: 5142 TEMP: 44.4 TEL: 1.047 DLDO: 1.008 POW: 9.0 CAC: 0.0
10:26:57 TEST#04 – OK EFREQ: 5142 TEMP: 43.3 TEL: 1.048 DLDO: 1.008 POW: 7.8 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#5 (163) AMD CO: -50 VERIFICATION
10:27:29 TEST#01 – OK EFREQ: 5143 TEMP: 40.8 TEL: 1.055 DLDO: 1.027 POW: 6.6 CAC: 0.0
10:28:01 TEST#02 – OK EFREQ: 5142 TEMP: 40.8 TEL: 1.057 DLDO: 1.026 POW: 6.8 CAC: 0.0
10:28:34 TEST#03 – OK EFREQ: 5125 TEMP: 43.7 TEL: 1.058 DLDO: 1.024 POW: 9.0 CAC: 0.0
10:29:06 TEST#04 – OK EFREQ: 5140 TEMP: 43.0 TEL: 1.055 DLDO: 1.027 POW: 7.8 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#4 (158) AMD CO: -50 VERIFICATION
10:29:38 TEST#01 – OK EFREQ: 5141 TEMP: 42.2 TEL: 1.062 DLDO: 1.032 POW: 6.8 CAC: 0.0
10:30:10 TEST#02 – OK EFREQ: 5136 TEMP: 42.4 TEL: 1.062 DLDO: 1.031 POW: 6.8 CAC: 0.0
10:30:43 TEST#03 – OK EFREQ: 5141 TEMP: 45.0 TEL: 1.062 DLDO: 1.034 POW: 9.1 CAC: 0.0
10:31:15 TEST#04 – OK EFREQ: 5117 TEMP: 44.0 TEL: 1.066 DLDO: 1.027 POW: 8.0 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#2 (154) AMD CO: -50 VERIFICATION
10:31:46 TEST#01 – OK EFREQ: 5142 TEMP: 42.2 TEL: 1.060 DLDO: 1.034 POW: 6.8 CAC: 0.0
10:32:18 TEST#02 – OK EFREQ: 5144 TEMP: 42.0 TEL: 1.065 DLDO: 1.034 POW: 6.8 CAC: 0.0
10:32:51 TEST#03 – OK EFREQ: 5144 TEMP: 45.2 TEL: 1.062 DLDO: 1.038 POW: 9.1 CAC: 0.0
10:33:23 TEST#04 – OK EFREQ: 5125 TEMP: 44.2 TEL: 1.068 DLDO: 1.031 POW: 8.0 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#0 (150) AMD CO: -50 VERIFICATION
10:33:55 TEST#01 – OK EFREQ: 5155 TEMP: 42.2 TEL: 1.056 DLDO: 1.034 POW: 6.6 CAC: 0.0
10:34:27 TEST#02 – OK EFREQ: 4509 TEMP: 41.6 TEL: 1.088 DLDO: 0.869 POW: 6.4 CAC: 0.0
10:35:01 TEST#03 – OK EFREQ: 5088 TEMP: 44.8 TEL: 1.060 DLDO: 1.018 POW: 9.0 CAC: 0.0
10:35:33 TEST#04 – OK EFREQ: 5137 TEMP: 43.7 TEL: 1.057 DLDO: 1.030 POW: 7.8 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#7 (146) AMD CO: -50 VERIFICATION
10:36:05 TEST#01 – OK EFREQ: 5135 TEMP: 44.0 TEL: 1.060 DLDO: 1.034 POW: 6.8 CAC: 0.0
10:36:37 TEST#02 – OK EFREQ: 5135 TEMP: 44.0 TEL: 1.060 DLDO: 1.034 POW: 6.8 CAC: 0.0
10:37:09 TEST#03 – OK EFREQ: 5127 TEMP: 47.0 TEL: 1.065 DLDO: 1.034 POW: 9.2 CAC: 0.0
10:37:41 TEST#04 – OK EFREQ: 5126 TEMP: 46.2 TEL: 1.066 DLDO: 1.034 POW: 8.1 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 )
CORE#6 (141) AMD CO: -50 VERIFICATION
10:38:13 TEST#01 – OK EFREQ: 5132 TEMP: 44.7 TEL: 1.074 DLDO: 1.044 POW: 7.0 CAC: 0.0
10:38:45 TEST#02 – OK EFREQ: 5141 TEMP: 44.8 TEL: 1.072 DLDO: 1.046 POW: 7.2 CAC: 0.0
10:39:17 TEST#03 – OK EFREQ: 5140 TEMP: 48.0 TEL: 1.076 DLDO: 1.048 POW: 9.4 CAC: 0.0
10:39:49 TEST#04 – OK EFREQ: 5122 TEMP: 47.0 TEL: 1.076 DLDO: 1.043 POW: 8.2 CAC: 0.0
CCD#0 AMD CO: ( -50 -50 -50 -50 -50 -50 -50 -50 ) VERIFICATION
10:40:22 TEST#01 – OK EFREQ: 5191 TEMP: 57.8 TEL: 1.084 DLDO: 1.066 CAC: 12.0 POW: 56.9
10:40:55 TEST#02 – OK EFREQ: 5244 TEMP: 58.8 TEL: 1.101 DLDO: 1.065 CAC: 12.0 POW: 58.4
10:41:29 TEST#03 – OK EFREQ: 5160 TEMP: 61.4 TEL: 1.074 DLDO: 1.053 CAC: 19.5 POW: 40.4
10:42:02 TEST#04 – OK EFREQ: 5165 TEMP: 64.8 TEL: 1.089 DLDO: 1.066 CAC: 16.4 POW: 69.1
Final results…
CORE#0 CPPC: 150 AMD CO: -50
CORE#1 CPPC: 167 AMD CO: -50
CORE#2 CPPC: 154 AMD CO: -50
CORE#3 CPPC: 167 AMD CO: -50
CORE#4 CPPC: 158 AMD CO: -50
CORE#5 CPPC: 163 AMD CO: -50
CORE#6 CPPC: 141 AMD CO: -50
CORE#7 CPPC: 146 AMD CO: -50
CCD#0: PLATINUM(-50)
“`
10 Comments
Is this a 90 second stress test per core?
Yeah, you should probably test for longer. E.g. with OCCT or with CoreCycler (with y-cruncher as the test program and 19-ZN2 ~ Kagari as the test mode).
-50 is insane. You can use it for 30 years without problem.
Hydra gave me exaugurated results as well, but then it all crashed in a simple default OCCT 5 min cpu avx2 test.
If it passes in that, then congrats!
You should also be checking with Aida64’s SHA and FPU Julia benchmarks (I just run each one 15-20 times in rapid succession). I forget which is which, but one is a pretty potent test of standard Zen 4 stability, and the other does the same for X3D models. I run both on either because I figure, if you’re gonna stability test, you might as well be thorough.
Whats -50?
Let’s see a 24hr stability test
I bet it will crash instantly if you run Prime95 with custom 128K small & large FFTs.
CPPC 167 is insane. Never seen more than 142 on my CPU
And its not even Ryzen 7700X 😂
Congrats on winning the lottery 😉👍
Wow. Thats insanity. Coming from a 7950x3D, which anything under -20 would result a crash, having -30 -35 CCD0 and -45 -50 CCD1 on my 9950x (Passed 45 mins CoreCycler/ Prime95, and 12 hr Prime95 blend test) I thought I’ve hit jackpot. Congrats on the real jackpot
Lets run some Ycruncher VT3