Raspberry Pi 3 crash after few hours running

2018-04-08 04:10:53

I need your advice on troubleshooting my Pi 3B crashes.

I set it up to run some crypto mining programming; it was running constantly fine for over few weeks. Recently, it keeps crashing after every 5-10 hours running (unable to ssh or ping my pi locally); however, the Green Led is still blinking every 3-5 seconds.

I use a proper power supply (5v 2.5A); very good SD card Sandisk Extreme 64 Gb.

Where should I start looking?