is 500 U1s a good deal at 22btc?
what are these sold for individually?
seems only 1 coupon per order..
also wrt xxxxxxx's - both rigs are between 175 & 185. i found adding a fan on the back blowing in adds about 5-10 Gh (not OC'd)
thx all
I thought the rear fan was supposed to be an exhaust....hmmm but hey if it works and make more power sweet....
btw, speaking of fans...I am having issues on 3 of 6 ANTMINERS received in this last order with what seems like bad/dead fans....
so on one unit the Antminer was running perfect, other than this unit had a particularly louder than usual fan for one of these rigs, the it stop running and of course the unit stopped mining and started beeping (awesome safety feature). So I thought bad fan, wrong, run good when testing it on the 2nd FAN PWN connection on a running unit...
so then I though bad power supply, wrong....
test a known good antminer, and it power up and mined perfectly....
then I started test the unit and found out by accident that just as I disconnected the fan it moved...I saw that and started messing with the plug and got the fan to work....Somehow if I shove the fan connect all the way down it won't work....I thought it was a bad/bent pin, wrong, then I thought a bad pin in the fan connector, wrong again...If I dangle the fan connector just right, it will run and the rig will mine, but if falls or is not a good connection or I shove it all the way down, no fan = no mining
same for the next 2 units. EXCEPT 1 unit did run with the fan connector all the way down and I could see the FAN RPM's in the web browser, but now I cannot. While it did run, unit 1 did have a weird burning smell....so I am concluding that these are not the same fans that came in earlier batches....and that maybe the speed sensor/control on the fan has burned out...and that was the burning smell....
and the fan works when I dangle/connect it just slightly to give power but not to the sensor???
thoughts, suggestions fixes ideas are welcome. I am ordering some new fans which are not as easy to find as some say, I did order one before and it was the right dimension, slightly wrong connector and pinned out wrong ( i had to swap the pins around in the fan).
thanks,
sbfree
ps. these 3 units are currently running, but I can't see fan RPM's nor can I shove the connectors all the way down or fan stops as soon as I try to do that.