11-09-2020 11:04 PM
11-14-2020 02:29 AM
11-14-2020 05:16 AM
Shamino wrote:
the sum of adaptive + vf8 offset if any, and if this sum is the biggest among all vf1~7
11-14-2020 09:47 AM
Shamino wrote:
the sum of adaptive + vf8 offset if any, and if this sum is the biggest among all vf1~7
11-14-2020 10:44 AM
RobertoSampaio wrote:
Sorry @Shamino... This is not clear to me ... Could you explain with an exemple?
11-14-2020 12:03 PM
Shamino wrote:
lets say the cpu's native vid at 53x its highest boost freq is 1.53v
lets say your configure such that the highest core freq for light loads is 54x.
lets say you set an adaptive voltage of 1.55v
lets say vf pt 7's original vid is 1.49v
lets say no offsets applied to vf7/8
so when cpu goes 54x, the 1.55v setting will get honored.
the resultant vid request/voltage received is also affected by a whole slew of other factors such as (acdc LL/svid behavior, tvb voltage opt if enabled, vrm LL) but those need to be dealt with seperately in order not to complicate the example.
in same example just changing 1.55v value to 1.5v value:
when cpu goes 54x, the 1.5v setting does not get honored then due to it being lower than its native 1.53v
then u do an offset of -30mv to vf8
so when u run 54x, 1.5v (which is 1.53v - 30mv and not your setting of 1.5v-30mv in this case, always bear in mind trying to set adaptive lower than native volt is futile, this is a key point in understanding its behavior) is achieved because negative offsets work regardless of native vid as long as the vf curve remains monotonic, ie, always increasing/at very least constant. 1.5v is higher than the point before it, vf7 which is 1.49v which has no offset v set at the moment.
then u decide to add an offset to vf7 , say 40mv. thus vf7's resultant v is 1.49+40mv=1.53v. then now even though u did nothing to vf8, it is no longer 1.5v when at 54x but 1.53v to keep the vf curve monotonic.
so to understand adaptive voltage, always bear in mind:
voltage settings can only take effect if freq is > default boost and volt is > default vid
anything else is futile
that is where vf pt offset comes in, when u cannot do it by adaptive v setting as above, then u do it by vf pt offset, bearing in mind it's monotonic behavior.
11-14-2020 06:51 PM
RobertoSampaio wrote:
Tx Shamino !!!
I think I understood ... 🙂
So which is the better choice for the higher frequency?
Pump up V/F8 or add voltage thru adaptive offset?
I'm trying 54x3, 53x5, 52x8, 51x10 +1boost
5100MHz - V/F6=1.329 (+0.016) = 1.345v
5200MHz - V/F7=1.329 (+0.031) = 1.360v
5500MHz - V/F8=1.428 (+0.032) = 1.460v
Adaptive = 1.480v
So the results should be:
5100MHz - VID ~ 1.345v
5200MHz - VID ~ 1.360v
5300MHz - VID ~ 1.410v
5400MHz - VID ~ 1.445v
5500MHz - VID ~1.480v
Is it?
11-29-2020 04:27 PM
12-27-2020 02:11 PM