I'm not even pushing my hardware, but the miner isn't stable and it's still full of bugs and some features are poorly implemented.
Claymore, I'm happy to pay you 1% of my earnings. You're a smart guy and this little app is making you a shit ton of money... But you're not done here yet! Keep working!
My experience:
I use claymore for hours without trouble with some BIOS.
Every-time Claymore hangs, I see hardware errors in the kernel logs, with segfault in the GPU, incoherent state of GPU(GPU fault detected, VM_CONTEXT1_PROTECTION_FAULT_ADDR, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VM fault )... and usually the CPU have locked thread that prevent shutdown (Not all CPUs entered broadcast exception handler).
I blame my hardware, over heating, overclocking, extremevoltage. heat is key. globally I blame myself.
much more stable since I increased airflow with 4 200mm fan, and selected VBIOS with TBP/MaxPower at 90W.
runs day long.
What cards are you using and what hash do you get with MaxPower of 90W?