F5F Stay Refreshed Hardware Desktop Reducing base voltage during OC stress tests for Ryzen 5800x

Reducing base voltage during OC stress tests for Ryzen 5800x

Reducing base voltage during OC stress tests for Ryzen 5800x

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139
12-03-2020, 09:02 PM
#1
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AwakeningTroll
12-03-2020, 09:02 PM #1

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plumhead123
Member
61
12-04-2020, 06:40 AM
#2
It's simply a drop in voltage since it doesn't require the full 1.32V; it worked at 1.28V before.
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plumhead123
12-04-2020, 06:40 AM #2

It's simply a drop in voltage since it doesn't require the full 1.32V; it worked at 1.28V before.

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PanPanel
Member
58
12-04-2020, 07:07 AM
#3
Vdroop, your motherboard loses voltage since the CPU is working hard to keep it safe. The LLC (Load Line Calibration) helps, but use it carefully because temperatures may rise and power levels could become dangerous.
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PanPanel
12-04-2020, 07:07 AM #3

Vdroop, your motherboard loses voltage since the CPU is working hard to keep it safe. The LLC (Load Line Calibration) helps, but use it carefully because temperatures may rise and power levels could become dangerous.

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Neerg_mas
Junior Member
2
12-04-2020, 09:06 AM
#4
Thanks for the update. It seems the CPU wasn't overloaded because it was undergoing a CPU stress test, and LLC mode 4 is active in the BIOS. Temperatures are well within the normal range.
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Neerg_mas
12-04-2020, 09:06 AM #4

Thanks for the update. It seems the CPU wasn't overloaded because it was undergoing a CPU stress test, and LLC mode 4 is active in the BIOS. Temperatures are well within the normal range.

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Interpositive
Junior Member
11
12-04-2020, 04:22 PM
#5
Thank you for the update! The core voltage is now set to 1.29V and everything seems stable.
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Interpositive
12-04-2020, 04:22 PM #5

Thank you for the update! The core voltage is now set to 1.29V and everything seems stable.

L
181
12-06-2020, 06:19 AM
#6
It's okay where it was; you didn't have to lower the voltage.
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LePoteDuQuebec
12-06-2020, 06:19 AM #6

It's okay where it was; you didn't have to lower the voltage.

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kcaz56
Senior Member
664
12-06-2020, 07:15 AM
#7
Stress tests put it under load. Vdroop is normal and fine as long as it don't drop too much and causes instability with overclocking (like BSOD and stuff).
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kcaz56
12-06-2020, 07:15 AM #7

Stress tests put it under load. Vdroop is normal and fine as long as it don't drop too much and causes instability with overclocking (like BSOD and stuff).

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IrishSpring
Junior Member
16
12-07-2020, 02:26 AM
#8
If you have the voltage set to a fixed 1.32V, and when you stress the CPU, the Core Voltage drops, then that is Voltage Droop (V DROOP ). For an example, your line voltage to your house is 110V. Plug in a bunch of light bulbs, adding a load, turn on the switch, and the voltage will drop down to 109.8V. Same thing with your CPU. When you stress test your CPU, you are adding load to the line. When you add a load / resistance, the voltage will drop vs no load. Hence, in the BIOS, it's called CPU Load-Line Calibration (LLC). It compensates for the voltage droop as you put load on the CPU. Typically, the more load %, the higher the compensation needs to be to maintain a steady voltage.
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IrishSpring
12-07-2020, 02:26 AM #8

If you have the voltage set to a fixed 1.32V, and when you stress the CPU, the Core Voltage drops, then that is Voltage Droop (V DROOP ). For an example, your line voltage to your house is 110V. Plug in a bunch of light bulbs, adding a load, turn on the switch, and the voltage will drop down to 109.8V. Same thing with your CPU. When you stress test your CPU, you are adding load to the line. When you add a load / resistance, the voltage will drop vs no load. Hence, in the BIOS, it's called CPU Load-Line Calibration (LLC). It compensates for the voltage droop as you put load on the CPU. Typically, the more load %, the higher the compensation needs to be to maintain a steady voltage.

C
Commando__
Senior Member
744
12-13-2020, 09:04 AM
#9
Appreciate the feedback, it's clear and helpful.
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Commando__
12-13-2020, 09:04 AM #9

Appreciate the feedback, it's clear and helpful.