Optimize Zen3 (5600X) by reducing clock speed.

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SavoiaB
Junior Member

02-07-2020, 01:13 PM

Hello, I haven't seen anyone undervolt a 5600X or similar Zen3 CPU before. If you're looking for details on power consumption changes, I can help with that. For your Raspberry Pi 4 8GB, running a mini server 24/7 at lower voltages like 1.1V would likely reduce power draw noticeably. Let me know if you'd like specifics!

SavoiaB

02-07-2020, 01:13 PM #1

Marinated
Senior Member

666

02-10-2020, 06:36 PM

Running 3600 under Windows Power Saver automatically lowers voltage and core clock speed. It adjusts to around 3-3.5GHz when idle and uses 15-20W when active, keeping temperatures between 40-42°C at idle. You can switch plans via PowerPlanSwitcher from the taskbar. Let me know if it works for you.

Marinated

02-10-2020, 06:36 PM #2

Vinceb11
Member

234

02-10-2020, 08:33 PM

Sure, just open cpu-z, go to the About tab, and then click Save Report as a .txt file. Look through it and find the p-states section. Paste their details here. Let me know if you need anything else!

Vinceb11

02-10-2020, 08:33 PM #3

Sure, just open cpu-z, go to the About tab, and then click Save Report as a .txt file. Look through it and find the p-states section. Paste their details here. Let me know if you need anything else!

falcon1640
Member

163

02-12-2020, 12:23 PM

Number of P-States 3 P-State FID 0x890 - Video 0x48 (36.00x - 1.100 V)
P-State FID 0xA8C - Video 0x58 (28.00x - 1.000 V)
P-State FID 0xC84 - Video 0x68 (22.00x - 0.900 V)
PState Reg 0x80000000-0x49120890
PState Reg 0x80000000-0x47160A8C
PState Reg 0x80000000-0x459A0C84
All other registers 0x00000000

falcon1640

02-12-2020, 12:23 PM #4

saukeuchiuchi
Senior Member

621

02-13-2020, 10:20 AM

3.6ghz 1.1v Now if someone has a 5600X, we can achieve a similar result. We may estimate the power consumption or run hwinfo64 for more details.

saukeuchiuchi

02-13-2020, 10:20 AM #5

3.6ghz 1.1v Now if someone has a 5600X, we can achieve a similar result. We may estimate the power consumption or run hwinfo64 for more details.

dwoofter
Junior Member

02-13-2020, 11:52 AM

It seems you're noticing similarities in your 5600X and 5900X performance. You plan to keep the same VCore setting, adjusting it from .212V up to around 1.525V while using PBO with hwinfo64 for monitoring.

dwoofter

02-13-2020, 11:52 AM #6

Senshi_
Member

197

02-18-2020, 04:26 PM

Sure, I can help with that. Just provide the PSTATES and I'll format them for you.

Senshi_

02-18-2020, 04:26 PM #7

Sure, I can help with that. Just provide the PSTATES and I'll format them for you.

ketman34
Posting Freak

834

02-26-2020, 01:47 AM

I’m unable to today because of two reasons. I have my 5900X installed, and my youngest’s 7th birthday party starts soon. Using the 5900X would help? Also, it worked with PBO on both of them, but I don’t do stock. Eww.. but I can

ketman34

02-26-2020, 01:47 AM #8

SKY3R
Member

138

02-26-2020, 03:38 AM

Confirmed 5900x works. Must stay at defaults or the pstates could become unbalanced. Thanks!

SKY3R

02-26-2020, 03:38 AM #9

Confirmed 5900x works. Must stay at defaults or the pstates could become unbalanced. Thanks!

BPGUENTZEL
Member

189

02-26-2020, 08:38 AM

#10

Here you are: 3 P-State FID 0x894 with VID 0x48 (37.00x - 1.100 V),
0xA8C FID 0x58 (28.00x - 1.000 V),
0xC84 FID 0x68 (22.00x - 0.900 V).

P-State Regions:
0x80000000-0x49520894,
0x80000000-0x47160A8C,
0x80000000-0x459A0C84,
0x00000000-0x00000000,
0x00000000-0x00000000

BPGUENTZEL

02-26-2020, 08:38 AM #10

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