Hello,
After days (or actually weeks) of tweaking I have 5.2 steady and am just on the brink of 5.3.
It runs 30 passes of Linpack together with Youtube fine, small FFT Prime 95 fine, but as soon as a manually set 384k FFT size In-Place it errors. I raised the V very high (for some ridiculously so), to about 0.05 plus the Auto setting at x53 resulting in VID of 1.62 and Vout of 1.58 (LLC4 on MSI Unify), but as it rarely stays there for long with dynamic core speed (and throttling) I'm ok to risk the chance of degradation.
Thing is that even with these settings it crashes either quickly or after a bit, best run was 30 min, but a restart of that run crashed immediately.
L2 cache is 10x256kb and I might have this totally wrong but I guess that 384k sized FFT's will spill over into the 20mb L3 cache, so guess the instability is somewhere over there. Small FFT's that fit in L1/L2 cache run fine (without need for an offset).
I think I just hit a wall. For sure hit the temp limit as 3 cores throttle but dont mind that too much as irl in games I'll never hit the constant load that P95 brings so throttling there would be not much of an issue.
Tried LLC3 (almost flat), LLC5 with every combination of Vcore / SA / IO possible (latter two up to 1.4). Mem set at xmp 3600, 1.5 vdimm, seems stable and not the cause of the crashes.
Is there any setting besides Vcore I could change to stabilize the cache ?
So close, yet so far away
Thanks !
Ps. a blend run also crashed eventually, I think at 5k FFT size
After days (or actually weeks) of tweaking I have 5.2 steady and am just on the brink of 5.3.
It runs 30 passes of Linpack together with Youtube fine, small FFT Prime 95 fine, but as soon as a manually set 384k FFT size In-Place it errors. I raised the V very high (for some ridiculously so), to about 0.05 plus the Auto setting at x53 resulting in VID of 1.62 and Vout of 1.58 (LLC4 on MSI Unify), but as it rarely stays there for long with dynamic core speed (and throttling) I'm ok to risk the chance of degradation.
Thing is that even with these settings it crashes either quickly or after a bit, best run was 30 min, but a restart of that run crashed immediately.
L2 cache is 10x256kb and I might have this totally wrong but I guess that 384k sized FFT's will spill over into the 20mb L3 cache, so guess the instability is somewhere over there. Small FFT's that fit in L1/L2 cache run fine (without need for an offset).
I think I just hit a wall. For sure hit the temp limit as 3 cores throttle but dont mind that too much as irl in games I'll never hit the constant load that P95 brings so throttling there would be not much of an issue.
Tried LLC3 (almost flat), LLC5 with every combination of Vcore / SA / IO possible (latter two up to 1.4). Mem set at xmp 3600, 1.5 vdimm, seems stable and not the cause of the crashes.
Is there any setting besides Vcore I could change to stabilize the cache ?
So close, yet so far away
Thanks !
Ps. a blend run also crashed eventually, I think at 5k FFT size