Topic: Antminer Batches? - page 2. (Read 3171 times)
where do I find the error rate?
My batch 3 I bought on ebay does says 4795 gh/s average. is that acceptable? what else should I look for?
Yeah, that's totally within spec - the big thing is hardware error rate. The lower the number, the better - for me, I like to see them less than 0.01, but I can live with less than 0.05. You get unicorns that have no errors, I have two that literally have 0 all the time.
My batch 3 I bought on ebay does says 4795 gh/s average. is that acceptable? what else should I look for?
It seems to me that even in Batch 1 there were "early" batch 1's and "later" batch 1's. There were many people who ordered in August that received all of theirs together, and then the rest of the B1's shipped right at the end of their deadline (including my 2 which confirmed on Sep 2nd), and mine have been rock solid 4.86, and even over-clocked to >5 TH's without a hitch. Maybe some of the late B1's were actually B2 after they found some defects? And the early B1's were more like the B3's...
Batch 6 WILL be worse efficiency, as they're running it at a higher voltage. My best guess is more like 0.3W/GH vs the 0.25 spec on the earlier batches.
not true but could be true.
my batch 2 is a stud and the boards read 575 freq.
my batch 1 sucks
I will post photos.
the batch 1 does 4760 at freq 593---errors are 0.0141%
the batch 2 does 4909 at freq 606---errors are 0.0009%
I can get better numbers if I feed hot volts :
12.1 is going into the batch two
11.94 is going into the batch one
the batch 6 may have the widest volt range of all the batches-------------- if true it has an interesting value.
a psu like this one
https://www.trcelectronics.com/ecomm/pdf/rsp1500.pdf
could allow for under volt & down clock or over volt & over clock
so buying used you won't have any idea of what you get. unless you see the gear running.
you need to see the gear and read the input volts to all 9 blade jacks to know what you are buying.
and I have done extensive testing you can not cheat on the 9 blade jacks 9 separate cables. on some psu's the dc drops a lot when you split the pcie cables. you go to 11.8 and the s-7 starts to do poorly.
So a guy can say his batch 1 sucks and gives him 4500
and the truth is his power sucks and he could do more like 4700 with better psu's
I will not buy any s-7's via resale unless I test the s-7 first.
Batch 6 WILL be worse efficiency, as they're running it at a higher voltage. My best guess is more like 0.3W/GH vs the 0.25 spec on the earlier batches.
My experience mirrors carlosmnk, I have 2 Batch 1's, and they're both a bit of a dog doing ~4.6 w/ 0.04 HWE, but I have 7 Batch 3's that are far better, all doing 4.8 with HWE 0.002 at worse.
BTW; on the itop site, it says Batch 3, but the spec shows 4.05, so it's batch 6. Zoomhash lists 4.86, but I had a bunch on order with them and they just cancelled them all without warning and then raised the prices on the site. Sucks because I could have just purchased them directly from Bitmain but I thought my experience would have been better with Zoomhash.
As carlos says, it makes the secondary market on these things a minefield - who knows how the machine will perform, which batch, etc.
BTW; on the itop site, it says Batch 3, but the spec shows 4.05, so it's batch 6. Zoomhash lists 4.86, but I had a bunch on order with them and they just cancelled them all without warning and then raised the prices on the site. Sucks because I could have just purchased them directly from Bitmain but I thought my experience would have been better with Zoomhash.
As carlos says, it makes the secondary market on these things a minefield - who knows how the machine will perform, which batch, etc.
Batch 1: It must do 4.86 th/s, but there are "some" (a lot maybe) people reporting 4.66 th/s miners
Batch 2: It must do 4.66 th/s
Batch 3: It must do 4.86 th/s
Batch 4: It must do 4.66 th/s
Batch 5: It must do 4.86 th/s
Batch 6: IT says it do 4.05 th/s and with same eficience (135 chips instead 162 chips version), but some here think it will have worse eficience (perphaps +10% draining power)
Also there are some miners reporting 4.45 th/s (you can but it at itopshop.net ), and bitmaintech was released a new firmware with 3 variants: 4.86 / 4.66 / 4.45 ....
I think this miner have too many variances, and in near future, when we will see an S7 used we will don't know really what can do.... But it runs great...
Batch 2: It must do 4.66 th/s
Batch 3: It must do 4.86 th/s
Batch 4: It must do 4.66 th/s
Batch 5: It must do 4.86 th/s
Batch 6: IT says it do 4.05 th/s and with same eficience (135 chips instead 162 chips version), but some here think it will have worse eficience (perphaps +10% draining power)
Also there are some miners reporting 4.45 th/s (you can but it at itopshop.net ), and bitmaintech was released a new firmware with 3 variants: 4.86 / 4.66 / 4.45 ....
I think this miner have too many variances, and in near future, when we will see an S7 used we will don't know really what can do.... But it runs great...
I have an antminer s7 and unfortunately like it so much I think I will be buying another lol. I have a batch 3 and I have seen a batch 1 for sale. Any difference between the batches? They are both 4.86 is that all that matters?
Thanks so much,
Paul
Thanks so much,
Paul
my batch one is not 4.86th
on a good day it gets 4.70th
I have an antminer s7 and unfortunately like it so much I think I will be buying another lol. I have a batch 3 and I have seen a batch 1 for sale. Any difference between the batches? They are both 4.86 is that all that matters?
Thanks so much,
Paul
Thanks so much,
Paul
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