Hi experts !
My brand new Bitfury hashrate dropped recently from normal (-/+ 410gH after a few days running) to badass (120gH since 10 hours). and i found no reason for it. It was mining on ghash.io then I though it might be linked to some pool factors so I decided to moove it back to btcguild but nothing changed. I tried to tune up modifying difficulty settings but nothing happened.
The noncerate hashrate has dropped to, but in a less significant way. Rebooting the device doesn't help. I doubt chips tuning could help so as the rig is only working 3 days so it should not get dammaged so soon. The thing is that with the actual settings it was able to mine at 500gH and even higher rates sometimes. I it is quite stressful it stopped so as I am supposed to be in my golden mining lapse.
Do you think PSU could be pointed here ?
I mine with 16 bitfury H-cards for a total guaranteed hashrate of 400gH, supplied by a 750w gold seasonic.
I lurked on the forum I found similar problems but not exactly the same. I am quite new to this so maybe the answer is abvious, nevertheless I would really appreciate your advices !
Thank you