New Antminer S5 Not Hashing and showing Temp of Zero

[dimke_yu]

Well you did what you know it will work by the numbers but not all S5 are the same, you have various revisions of hashing boards and control boards and they do not behave the same. When I test problematic device I use Enermax Platimax 1000W just to be sure that PSU is not the culprit. I had situations where hashing pcb was damaged in some way probably because of too weak PSU and when I tried on Platimax everything worked well.

[1715501838]

1715501838

[philipma1957]

I will receieve new PSUs today.I will report the results.

I am running one S5 with CX750 Corsair.If it is a borderline PSU we are in trouble we have more than a hundred with this configuration.

I worry for you check this review out.


http://www.hardocp.com/article/2015/01/21/corsair_cx750_750w_power_supply_review/4#.VbkQBXiov8s


you are somewhere in between test 3 and test 4


the psu flatout crashes on test 4.   which is 60 amps at 12 volts or 720 dc and of course  you should be using

 1150 x .52 = 598 dc at stock settings    while 600 out of 720 sounds good.  if you run 24/7/365  you need to derate by 20%  so 720 x .8 =  576 dc

and stock setting is going to use 598 dc.

So you are running them beyond safe derating.  and we do not know  what safe is since 720 failed  so 720 x .8 = 576 is not really safe.

and you have 100 of them.   I really suggest  dropping your freq setting under stock 350 it simply is not safe.

But I am not an electrical guy. just a miner.

if I had to run those psu's with s-5's I would start at freq 275 and maybe raise a bit to 287.5 or 300

[gablay12]

I have bought a Enermax Platimax 1000W PSU.I have tried it with the S5 miner.No difference.It only hashes (between 3 and 50) at 100 frequency.

There is temperature value at only one board.All chips seems to work (ooooooo).

I have also checked the cables.

Should I try to upgrade the firmware (I have resetted) ?

Any suggestions?

[gablay12]

It does not hash a any frequency higher then 100.

[dimke_yu]

Try with several version of firmwares starting from newest to oldest who knows which version suits the best in your case.

[gablay12]

I think it is not about firmware, but bad control board.

[skycoinlab]

I think it is not about firmware, but bad control board.

It's not working control board, we had the same issue with a miner in skycoinlab.

[gablay12]

[/quote]
It's not working control board, we had the same issue with a miner in skycoinlab.
[/quote]

Have you found the problem?How did you fix it?

[gablay12]

Pls. find below my customer experience with Bitmain.

https://bitcointalk.org/index.php?topic=1141392.0