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Topic: ANTMINER S2 Discussion and Support Thread - page 120. (Read 355842 times)

legendary
Activity: 3234
Merit: 1220
Hello

Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?

I don't think they do.
newbie
Activity: 19
Merit: 0
Hello

Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
legendary
Activity: 3234
Merit: 1220
Its still double the price of the S1 per thash even with the coupon. S1 is the best bang for the buck right now.

And S1 will survive shipping. Bitmain needs to fix the S2!

I would purchase a couple if this weren't the truth, apparently.  If they can get them to customers without surgery involved in bringing them back up, I would bite.  Until then, no dice.

I got this in email from them by email:
Me:
Quote
Hi guys,
 
I would like to check if the S2 packing has changed in any way to protect the blades more during shipping?
 
Mine had a few blades dislodged and the host card, I managed to take it all apart and put it all back together again and its working but it seems I was lucky.
 
Have you made any changes to how you pack and ship these to minimize the risk?


Bitmain:
Quote
Hi,

new strong casing, adjust the inter structure. it will be much better than early Smiley


Best Regards

BITMAIN
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe


It comes from the Antminer U1 overclock manual. But I think this should be compatible to Antminer S1, too.

Let's see the example of why 0780 and 4F81 are 400MHz.

HEX                   BINARY                          15/BS         M                               N                            OD
0780                 0000  0111  1000  0000       00          00 0111 1   = 15          000 00  = 0              00 = 0 which NO=1
4F81                 0100  1111  1000  0001       01          00 1111 1   = 31          000 00  = 0              01 = 1 which NO=2
5F82                 0101  1111  1000  0010       01          01 1111 1   = 63          000 00  = 0              10 = 2 which NO=4

Fout = 25 * (M+1) / ((N+1)*NO)

Fout(0780) = 25 * (15+1) / (1*1) = (25*16)/1 = 400 MHz
Fout(4F81) = 25 * (31+1) / (1*2) = (25*32)/2 = 400 MHz
Fout(5F82) = 25 * (63+1) / (1*4) = (25*64)/4 = 400 MHz

Actually, 5F82 is also 400 MHz, but due to the instruction below 500 <= Fout * NO <=1000
Fout(5F82) = 400MHz, therefore,  Fout*4 = 1600 and over 1000.

So I think I should not config 5F82 for 400MHz, according to this manual.
I don't say that it does not work (I tried it before understanding the HEX, it worked)
but you have also another 2 freq_values which give you the same MHz and get along with the instruction in the manual.

A little bit too long, anyway, I hope you enjoy my lecture, lol.

Any questions are welcome.

If this is useful, any donations/tips are welcome => 12QAQhbmTzV7sJ9sg8xT96JAneE4S89sS6  Grin

I finally got around to doing the calculations myself for the antminer S2 - and so far it looks good (testbench was a U1, which on success menat the code could be applied to the S2 safely)

5002 = 206.25MHz
5082 = 212.50MHz
6206 = 215.625MHz
5102 = 218.75MHz

all three meet the requirements stipulated by the above rules and pattern.

5082 is currently giving a hashrate of 1095GH and error rate of about 0.95% after 15minutes.    (212.5 is 8.5% higher than the stock speed)

tips accepted at  1LQZnkJuUbdeVdxGjR27zkNJWSW4FSLBhh

newly added:   6206 = 215.625MHz

for some reason my system was a bit unstable at 218.75MHz.  it had ~2.02% hw errors, but something was causing either the miner or the psu to switch off and need a reboot. (the PSU is a modified DPS2000 so it should be plenty powerful, but the cooling fan i stuck to it might not have been sufficient)
212.5MHz gives ~0.75% errors, so hopefully the middle-step at 215.6 will be around 1.1% errors and more stable.
hero member
Activity: 918
Merit: 1002
Its still double the price of the S1 per thash even with the coupon. S1 is the best bang for the buck right now.

And S1 will survive shipping. Bitmain needs to fix the S2!

I would purchase a couple if this weren't the truth, apparently.  If they can get them to customers without surgery involved in bringing them back up, I would bite.  Until then, no dice.
full member
Activity: 219
Merit: 100
I'm in for two of the batch 4 units... I'm hoping/praying/wishing for early shipment by Bitmain (remember the good old days?)

This is a little more pricey than the S1 solution, but the reduced equipment footprint and reduced power requirements were enough to sway me in my purchasing decision.

May 8th seems like an eternity from now, and the new S1 price looks good but May 4th is 1/2 of an eternity (and I just bought 18 of the S1's at .6something)

For current holders of the S2, how many PCI-e 6 or 8 pin connectors are required if a power supply change out is needed?  
legendary
Activity: 3878
Merit: 1193
Its still double the price of the S1 per thash even with the coupon. S1 is the best bang for the buck right now.

And S1 will survive shipping. Bitmain needs to fix the S2!
hero member
Activity: 728
Merit: 500
Its still double the price of the S1 per thash even with the coupon. S1 is the best bang for the buck right now.
sr. member
Activity: 672
Merit: 250
Buy, sell and store real cryptocurrencies
Damn it.  I might have to buy an S2 now. Sad
hero member
Activity: 630
Merit: 500
i know everyone is trying to make a buck but i will give away my coupons for whatever small BTC tip you wanna give me.  here's how it works:

you give me your name and address.  I place the order to go to your name/address, you send them the BTC within an hr of the order being placed.  send me a small tip.

once they give me tracking info i forward that info on to you via pm/email.  PM me if you are interested.
newbie
Activity: 23
Merit: 0
I sell an account with 2 coupons on it (2xUSD400) for USD75.

No need to trust me, you change the email and the password and the account is yours!

Escrow accepted
legendary
Activity: 4326
Merit: 8899
'The right to privacy matters'
Some people who has lots of $400 coupons can help other miners out.

You buy S2 with $400 and buyer sends money to escrow. Miner gets delivered and escrow is released.
Lets say buyer pays you $200 on top and still saves $200 from full price  Grin

I am willing to do this for someone - would be willing to sell the coupon use for $100 each  ($300 savings to someone who didnt have a previous bitmain account/purchase!)

 if you are close me.. I am  in New Jersey and want coupons pm me.

 I would attempt to do something like klondike_bar is doing.  Not quite sure how to do it .  But pm me.  Has to be a way to do it.

Basically I want 0 risk in it for me. My trust ratings are good enough.

 I have 6 s2 coupons. If I get 100 bucks a coupon it works for me.

please shoot me a pm.
legendary
Activity: 4326
Merit: 8899
'The right to privacy matters'
Did S1 buyers received S2 coupons?



 yes I got 6 s2 coupons
SVK
sr. member
Activity: 378
Merit: 250
Some people who has lots of $400 coupons can help other miners out.

You buy S2 with $400 and buyer sends money to escrow. Miner gets delivered and escrow is released.
Lets say buyer pays you $200 on top and still saves $200 from full price  Grin

I am willing to do this for someone - would be willing to sell the coupon use for $100 each  ($300 savings to someone who didnt have a previous bitmain account/purchase!)

That would be really nice from you Smiley
I'm about to turn off my Scrypt miners which will free roughly 2000W of power for me.
Are you based in EU ?
(not committing to anything yet)

Thank you   
legendary
Activity: 2324
Merit: 1039
Did S1 buyers received S2 coupons?

Yeah, i have 21xs1 and 21xs2 so yeah, s1 buyers got it too.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
Some people who has lots of $400 coupons can help other miners out.

You buy S2 with $400 and buyer sends money to escrow. Miner gets delivered and escrow is released.
Lets say buyer pays you $200 on top and still saves $200 from full price  Grin

I am willing to do this for someone - would be willing to sell the coupon use for $100 each  ($300 savings to someone who didnt have a previous bitmain account/purchase!)
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe

i think it goes for s1 and for s2.....

why no one told me that they have that?


I just saw the offer this morning, if this means $400 off coupon for each of my past S1/S2 purchases..  Oh man I need to call the sales creature get some cabinets put together!

same. I just got an absolute buttload of the $400 coupons in my account - but btc prices need to go above $500 before the S2 is appealing as an alternative to the S1. (either that, or drop the price another ~$300)
SVK
sr. member
Activity: 378
Merit: 250
Some people who got lots of $400 coupons can help other miners out.

Buyer sends money to escrow, You buy S2 with $400 coupon. Miner gets delivered and escrow is released.
Lets say buyer pays you $200 on top and still saves $200 from full price  Grin
full member
Activity: 204
Merit: 100
Did S1 buyers received S2 coupons?
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
i have 55 $400 S2 coupons...
More like coupon monsoon Shocked
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