Quote from: ektwr on May 16, 2015, 12:24:52 PM

Hi all,
my single 60GHs is dead and i want to revive it (if possible).
Machine is opening, the blowers runing fully and after gows lower speed.
Usb port is not recognizable although the win 7 pc i have found it as serial converter.
I try to mining with all known miner software like easyminer, bfgminer,cgminer etc.
Nothing happened also.
So i've decided to do some measurements to find a clue.
+1V are exist in both test points and others test points has 1,8V, 3,3V, 5V seems OK.
My last chance to fix it is to take out the eeprom 93LC56, read it and replaced.
Please before i do that if someone has another approach about measurements etc, post it here.
TIA

When you say "Usb port is not recognizable although the win 7 pc i have found it as serial converter." do you mean it comes up as a usb serial converter or is windows saying the usb device was not recognized? I do know several people have had issues with the FTDI usb->TTL uart chip dying.

Sounds like everything else is working from your descriptions. The LED should blink when power is turned on, then blink fast a few times and go solid light. That means the hashing ASICs have passed the self test.