Topic: ANTMINER S2 Discussion and Support Thread - page 120. (Read 355730 times)
I got 20 S2 -400USD coupons and 20 S1 0.05btc coupons anybody intrested?
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.
Been 30 years since I did this math. I am playing around with a lot of s-1's
does anyone have a link to a bigger more expanded chart.
Say from freq 175 to freq 425.
Freq
175
I am going to post a thread in support. Asking for people to fill in the gaps
[/quote]
not much reason for such a range, since most of it is a mixture of hand calculations and a logic puzzle (last digit as '2' means twice half the frequancy as if using '1' and 4x as using '0')
the ranges to focus on are: S1: 300-400MHz S2: 196-225MHz if you want a frequency outside that range you basically need to do the calculation with the end-frequency in mind. If you have a U1 it makes an excellent test-bench since it runs at a very similar voltage and frequency range as the S2.
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
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.
Been 30 years since I did this math. I am playing around with a lot of s-1's
does anyone have a link to a bigger more expanded chart.
Say from freq 175 to freq 425.
Freq
175
I am going to post a thread in support. Asking for people to fill in the gaps
Yeah, I have 10x coupons, so I'd sell them for like .1 a piece.
That said, I think I am going to wait a couple days. Bitcoin looks like its in a little uptrend, and I rather purchase it for 4.x BTC than 5.x btc. The difference might not be much in $, but I count my ROI in BTC.
That said, I think I am going to wait a couple days. Bitcoin looks like its in a little uptrend, and I rather purchase it for 4.x BTC than 5.x btc. The difference might not be much in $, but I count my ROI in BTC.
Hello
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
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.
no markings on the case, and nothing on the control board or hashing boards. Its unlikely anything is printed on the backplane either
Nothing on the external box either.
Hello
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
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.
no markings on the case, and nothing on the control board or hashing boards. Its unlikely anything is printed on the backplane either
Hello
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
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.
Hello
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
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?
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
Best Regards
BITMAIN
new strong casing, adjust the inter structure. it will be much better than early
Best Regards
BITMAIN
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
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.
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'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?
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?
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!
Its still double the price of the S1 per thash even with the coupon. S1 is the best bang for the buck right now.
Damn it. I might have to buy an S2 now. 
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.
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.
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
No need to trust me, you change the email and the password and the account is yours!
Escrow accepted
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
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
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.
Did S1 buyers received S2 coupons?
yes I got 6 s2 coupons
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
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
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
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
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