F5F Stay Refreshed Hardware Desktop Boot voltages for the i9-12900KS are typically 5V and 12V.

Boot voltages for the i9-12900KS are typically 5V and 12V.

Boot voltages for the i9-12900KS are typically 5V and 12V.

N
nugrr
Member
64
04-08-2021, 11:31 AM
#1
I've been attempting to get my system (ASUS Z690 Hero/12900KS) to start properly during manual overclocking while keeping SVID support off. I adjusted the voltages for cores, cache, input, and SA according to what my system normally uses when it runs smoothly under full load. Despite these changes, I still can't have it POST successfully. I suspect the issue might be related to the auto setting for boot voltages since those could depend on SVID support. I don’t have a clear reference point for any of these values and can’t easily measure them. Do you know standard boot voltage settings for this configuration? (Specifically: CPU Core, Cache, Input, and SA voltages)
N
nugrr
04-08-2021, 11:31 AM #1

I've been attempting to get my system (ASUS Z690 Hero/12900KS) to start properly during manual overclocking while keeping SVID support off. I adjusted the voltages for cores, cache, input, and SA according to what my system normally uses when it runs smoothly under full load. Despite these changes, I still can't have it POST successfully. I suspect the issue might be related to the auto setting for boot voltages since those could depend on SVID support. I don’t have a clear reference point for any of these values and can’t easily measure them. Do you know standard boot voltage settings for this configuration? (Specifically: CPU Core, Cache, Input, and SA voltages)

H
humanity13
Member
202
04-08-2021, 03:57 PM
#2
CPU Core Voltage Adjustment -> 1.37V stable Global Core SVID Voltage -> 1.35V = automatic Cache Voltage -> stable at 1.35V or enable auto CPU L2 at 1.15V -> optimal performance CPU System Agent -> 1.25V input voltage -> configure to 2.0V LLC with @LLC= setting to 4 or 7
H
humanity13
04-08-2021, 03:57 PM #2

CPU Core Voltage Adjustment -> 1.37V stable Global Core SVID Voltage -> 1.35V = automatic Cache Voltage -> stable at 1.35V or enable auto CPU L2 at 1.15V -> optimal performance CPU System Agent -> 1.25V input voltage -> configure to 2.0V LLC with @LLC= setting to 4 or 7