It is overclocked. more than likely your ASIC chips and PCB are damaged. Not much you can do at this point other than sending the PCB for repair or seek replacement.
Hi I began mining with an antminer s7 a few months ago, when I started everything went great but as time went by the antminer started to lose mining power and mi hash rate lowered I'm a beginner and I really don't know how to solve problems, but I think it has to do with the asic I'll post some screenshot, I hope someone can help me fix it
This is how it was before even there it was working at 2/3 of his capacity
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Foi1243.photobucket.com%2Falbums%2Fgg547%2Fventasonlinelimapsn%2Fs7_zpsgf8ckhns.png&t=663&c=kk7dX7N2mKb_iw)
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Foi1243.photobucket.com%2Falbums%2Fgg547%2Fventasonlinelimapsn%2Fs74_zps5ohlgwp3.jpg&t=663&c=zRVAqxN10pRGfw)
And this is now I'm only getting 1.5 TH
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Foi1243.photobucket.com%2Falbums%2Fgg547%2Fventasonlinelimapsn%2Fs72_zpsox03gw3s.png&t=663&c=6GRcP74GPjlJMw)
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Foi1243.photobucket.com%2Falbums%2Fgg547%2Fventasonlinelimapsn%2Fs73_zpsmjx36ab5.jpg&t=663&c=lhQlNDny9WixCQ)