Any ideas guys:

vcore = 1.375
vfsb = 1.3
vmch/ich = 1.55
fsb = 345X9

results: error in orthos in 2h 32m, stable in OCCT, XP

vcore = 1.375
vfsb = 1.3
vmch/ich = 1.575
fsb = 345X9

results: error in orthos in 42m, stable in OCCT, XP

Why would increasing the vmch/ich decrease the stability ? What should play with next ? Higher vcore or higher vfsb.vmch ?

p.s. Would have been great if either the vmch or vich can be manually adjusted separately like the p5b