I try with 575 , 550 but hw erore is very high and my hashrate is under 4000th/s

I changed the pool in next image
I buy the psu from bitmaintech
https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694

thanks
http://i58.tinypic.com/ngvw9t.png
http://i62.tinypic.com/2vmzpy9.jpg

Hi
i upgrade firmware for my antminer s7 and now it is worked for only one minute and than alarmed and not mined all asic status is ok network is ok. i reset my device but this problem is not solved. The Acics Tempurture is under 80 C (60 C).
can you help me
my miner is from batch one can you upload me the original firmware?
thanks