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Old 27-04-19, 02:00 PM
Gothmoth Gothmoth is offline
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Join Date: Jun 2017
Location: Germany
Posts: 302
Ryzen voltage very low under load

sorry, noticed to late it is under the wrong category graphics and display.

so my brother has an asus crosshair hero 6 board with a ryzen 1700.
he overclocked it a bit (all cores @3775 mhz).

now we both wonder that after a bios update (6101 to 6903 if it matters) the core voltage took a huge drop.

before he had around 1.32v when running cinebench (as shown by hwinfo, cpu-z).

now he has flashed the latest BIOS and put in the exact same settings (he took BIOS screenshots to make sure of that).

but the voltage is now at 1.12v -1.18 when under load.

the other thing is... the temps are now 4-5 degree celsius higher.
more power draw with lower voltage.

then we upped the LLC to a higher level (well with the old BIOS it was at auto so we can only guess that level 3-4 are higher as before).

but the core voltage as shown by the latest hwinfo or cpu-z stays way below 1.3v.
at LLC level 3 values as seen in the screenshots.

the CPU should not be stable at just 1.12 volt under full load for hours... right?
but we could not get it to crash with cinebench or aida64 torture test.

whats going on here?

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