58 deg Tctl is high-ish with OC. Not in context of absolute heat but, as you OC, thermal thresholds of stability ultimately go down (instead of 70 deg Tctl which is the default, you may start witnessing instability already at 60 deg Tctl).
Heat and power delivery of your board will both become factors. Be very careful not to fry your board!
Heat and power delivery of your board will both become factors. Be very careful not to fry your board!