Since I started overclocking my October Jups via the custom firmware, I've noticed an odd issue that I never had before. Some of the VRM's seem to drop to half-power (~20w). My hashrate dips as well, but the VRM doesn't just die on me like they used to. A quick restart of the miner or adjusting/applying settings will fix the issue for a time.
Is this a heat/OC/voltage issue? I can't seem to pinpoint the cause.