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Ryzen CPU Voltage question

lukeberg
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Hey guys!

 

I recently downloaded CPU-z to check on my temps during a stress test to make sure my new built Ryzen system was stable. However, after booting up CPU-z (before running the stress test) I noticed the core voltage kept jumping up and down between 1,250V all the way up to 1.461V. Anywhere between those numbers basically. I am running the stock CPU so no overclocking has been done. While running the stress test the voltage would be more stable, however, it would still jump between the numbers of 1,297 and 1,319. The CPU used in the build is a Ryzen 5 1600X. I am not sure if this is normal so help would be highly appreciated.

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https://linustechtips.com/topic/1071343-ryzen-cpu-voltage-question/
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Looks normal.  You could probably stand to do some undervolting though.  Hopefully, you can go a bit lower and keep temps down.  You're gonna have to test and find out.  

AMD Ryzen 5800X|  Fractal Design S36 360 AIO w/6 Corsair SP120L fans  |  Asus Crosshair VII WiFi X470  |  G.SKILL TridentZ 4400CL19 2x8GB @ 3800MHz 14-14-14-14-30  |  EVGA 3080 FTW3 Hybrid  |  Samsung 970 EVO M.2 NVMe 500GB - Boot Drive  |  Samsung 850 EVO SSD 1TB - Game Drive  |  Seagate 1TB HDD - Media Drive  |  EVGA 650 G3 PSU | Thermaltake Core P3 Case 

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I set a static voltage on my 2700X and it instantly improved both temps and performance. On auto it was spiking to just below 1.5v  I set it to 1.275v and it boosted more consistently ans stayed a lot cooler. Now I'm at 1.33v but am also all core overclocking @ 4.2Ghz.

Mechanical Keyboard Switch Lubing Guide

 

 

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30 minutes ago, Oalei said:

afaik for zen its no more than 1.4V and Zen+ 1.3V Max, i just watched buildzoid video and dont remembered what makes it like that.

There is a calcution for it like literally i just dont remembered it ask buildzoid.

That Zen+ number is way off.  

AMD Ryzen 5800X|  Fractal Design S36 360 AIO w/6 Corsair SP120L fans  |  Asus Crosshair VII WiFi X470  |  G.SKILL TridentZ 4400CL19 2x8GB @ 3800MHz 14-14-14-14-30  |  EVGA 3080 FTW3 Hybrid  |  Samsung 970 EVO M.2 NVMe 500GB - Boot Drive  |  Samsung 850 EVO SSD 1TB - Game Drive  |  Seagate 1TB HDD - Media Drive  |  EVGA 650 G3 PSU | Thermaltake Core P3 Case 

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32 minutes ago, Oalei said:

afaik for zen its no more than 1.4V and Zen+ 1.3V Max, i just watched buildzoid video and dont remembered what makes it like that.

There is a calcution for it like literally i just dont remembered it ask buildzoid.

Zen+ has the same voltage celing as Zen, it only produces way more heat at the same time and that tends to overload cooling systems meant for overclocking Zen

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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1 minute ago, Jurrunio said:

Zen+ has the same voltage celing as Zen, it only produces way more heat at the same time and that tends to overload cooling systems meant for overclocking Zen

i dont meant that, because its a 12NM its going to give more voltage than the 14NM, basically yeah it will overheat and overload. Thanks for the detail explanation thou, was going to ask anyway

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3 minutes ago, Oalei said:

because its a 12NM its going to give more voltage than the 14NM

?

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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54 minutes ago, Oalei said:

well thanks for that, well is it 1.275V or something else?

I'm running 1.35V and have been for months, Zen+ can take 1.4V just like all the other Zen CPUs.

CPU: AMD Ryzen 5 3600  Heatsink: ID-Cooling Frostflow X GPU: Zotac GTX 1060 Mini 6GB RAM: KLEVV Bolt 3600Mhz (2x8GB) Mobo: ASUS B550-F ROG Strix (Wifi)  Case: Fractal Design Meshify C PSU: Deepcool DQ-M-V2L

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