3900X + Asus rog strix x570-f gaming equals 1.488 volts for the CPU.

F5F Stay Refreshed Hardware Desktop 3900X + Asus rog strix x570-f gaming equals 1.488 volts for the CPU.

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swannie02
Junior Member

12-03-2019, 06:46 AM

Hi everyone. I recently discovered that some motherboards can overvolt Ryzen CPUs. After checking, I found my 3900X typically runs at about 1.25V, but my CPU shows 1.488V in the CPU-Z tool. I tried setting the BIOS to manual voltage, but it didn’t let me input a specific voltage. Instead, I used an offset of - or +, and set it to -0.023125V, which aimed for roughly 1.24V. After saving, I restarted without rebooting. When I turned it back on/off twice, it attempted a restart three times before entering safe mode. Once I rebooted, I was able to access BIOS and switched back to auto-voltage, after which the system restarted normally.

Any tips or suggestions? My BIOS is in the Armoury Crate, my cooler is Corsair H150i, and temperatures seem okay but a bit high compared to other 3900X builds.

Best regards from Sweden.
P.S. Spelling mistakes and grammar issues are part of the process.

swannie02

12-03-2019, 06:46 AM #1

rockyfireking
Junior Member

12-03-2019, 07:23 AM

Under single core tasks and brief bursts it functions properly. This question has been raised quite often among me too. For full core operations the value will decrease to around 1.3.

rockyfireking

12-03-2019, 07:23 AM #2

Under single core tasks and brief bursts it functions properly. This question has been raised quite often among me too. For full core operations the value will decrease to around 1.3.

to218
Junior Member

12-04-2019, 05:53 PM

This behavior has been observed for some time, dating back to the earliest systems. In short, when the CPU works harder, the voltage decreases and clock speeds follow.

to218

12-04-2019, 05:53 PM #3

This behavior has been observed for some time, dating back to the earliest systems. In short, when the CPU works harder, the voltage decreases and clock speeds follow.

toonchagirl
Member

12-04-2019, 06:05 PM

Thank you for the update. I completed a Cinebench R15 run with a score of 2997, and the CPU temperature dropped to 1.24°C during testing.

toonchagirl

12-04-2019, 06:05 PM #4

Thank you for the update. I completed a Cinebench R15 run with a score of 2997, and the CPU temperature dropped to 1.24°C during testing.

wesselboy11
Member

221

12-11-2019, 03:24 AM

The voltage offset probably failed due to excessive undervoltage. Be aware that performance may decrease even when frequency readings stay steady—this indicates ongoing instability.

wesselboy11

12-11-2019, 03:24 AM #5

The voltage offset probably failed due to excessive undervoltage. Be aware that performance may decrease even when frequency readings stay steady—this indicates ongoing instability.

TheSimple
Member

229

12-11-2019, 04:02 AM

Mine runs at 1.32x speed across all cores in Cinebench R15. Default settings on the Gigabyte board are used. Expected score is near 3250, but 2997 seems unusually low.

TheSimple

12-11-2019, 04:02 AM #6

Mine runs at 1.32x speed across all cores in Cinebench R15. Default settings on the Gigabyte board are used. Expected score is near 3250, but 2997 seems unusually low.

JGbb
Member

163

12-17-2019, 08:28 PM

I haven't tried many things, but my best score was 3100 points. The one I did with 2997 was just to verify the voltage, if it dropped. But now that you mention needing another 150 points, it makes me think about it.

JGbb

12-17-2019, 08:28 PM #7

ChibiWolf39
Senior Member

491

01-03-2020, 01:55 AM

Your best result with the default configuration is 3279. At 4.3GHz it rises to 3375. Are there many background processes consuming CPU power, or is your processor overheating? The boost frequency changes based on temperature.

ChibiWolf39

01-03-2020, 01:55 AM #8

will_goelz
Junior Member

01-05-2020, 12:02 AM

I’ll need to verify it a bit more closely; it seems nothing was running in the background and temperatures were okay as I understand. But I’ll post it again tomorrow, then check back here.

will_goelz

01-05-2020, 12:02 AM #9

I’ll need to verify it a bit more closely; it seems nothing was running in the background and temperatures were okay as I understand. But I’ll post it again tomorrow, then check back here.

lebossdu51
Member

01-05-2020, 05:34 AM

#10

I adjusted the voltage to 1.3 since then I don’t get the CPU fan adjust like when it’s set to auto. It was really frustrating.

lebossdu51

01-05-2020, 05:34 AM #10

I adjusted the voltage to 1.3 since then I don’t get the CPU fan adjust like when it’s set to auto. It was really frustrating.

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