Curious about HW Errors from BFL SC single (60Gh/s)

[ammo88]

Hi everyone,

I recently received the 60Gh/s Single which I ordered from BFL a year ago. I've only mined with GPU's prior to receiving this ASIC product and when mining with the GPUs I never got HW Errors when mining with CGMiner.

But when mining with the BFL Single I am getting some Hardware errors, about 0.81%. Can anyone help me out in understanding this a bit more?
I have no idea if the 0.81% hw errors is a lot and/or if it's something to worry about.

I turned on Debug mode and logged it for some time to try understand what's going on.
The HW Error seems to be this (copy/paste from log): "BAS0: invalid nonce - HW error"

Anyone care to enlighten me a bit ?
I'll continue search for the answers, yet I've not quite understood everything regarding Bitcoin mining (for example "nonce", so far I don't understand what it is).

[-ck]

Normal for there to be hw errors on ASICs. Ignore.

[ammo88]

OK good to know, thx for the quick reply 

[mmitech]

you shouldn't be worried about 0.81% , I had 3 and one was getting around 2%.

I will try to explain it in a simple way as I understand it, and if my explanation is wrong members feel free to correct me, so when bruteforcing the block to find the solving share, cgminer/bfgminer try to verify the nonce by comparing it on all engines, if it is not identical then you get that HW

[ammo88]

thx for the info, mmitech, appreciate it.

you had 3 ? how come you don't have them anymore, did you sell 'em ?

[mmitech]

thx for the info, mmitech, appreciate it.

you had 3 ? how come you don't have them anymore, did you sell 'em ?

yes I've got a good price at the time so I let them go, I am thankful that I did at the time, I would never mine what I got for them, now I am buying back but only at a price that I could actually get ROI.

[ammo88]

Ok nice that you got a good pay for them.
Like many other BFL customers I've become quite worried about ROI lately...according to my calculations it's possible to reach ROI before 2014 in my case, it all depends though..

[lerelerele]

I have proven my jalapeno with different computers and one computer has more volt in the USBs and give 50% of "HW Errors"