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Bitcoin / Mining support / Re: Bitmain AntMiner U1 Tips & Tricks

on: April 29, 2014, 09:19:26 AM

Quote from: Jay_Pal on April 28, 2014, 10:19:06 PM Quote from: Jovim on April 28, 2014, 09:40:30 PM Quote from: Jay_Pal on April 25, 2014, 12:42:10 PM Quote from: BRADLEYPLOOF on April 25, 2014, 12:12:23 PM Quote from: omgbossis21 on April 25, 2014, 08:12:51 AM How can I overclock the u2 (supposed to be u2+'s I got) with bfg past 2.2? I have two plugged in my desktop doing 2.2 with - hw errors so I know I can take them higher..... You'll need a few of the correct resistors to solder in, a fan, some heatsinks, and a powered USB hub. Then, look at https://www.bitmaintech.com/userfiles/download/AntMiner%20U1%20user%20guide.pdf Sorry, but that was to the the U1. The U2 already have the resistor soldered on and the heatsink. All you have to do is use the correct version of CGMiner and input the correct frequency parameters, as described in earlier posts on this same topic. That's odd I have 3 Ant's with board 1.2 (I think that they are really U2 because they came with the larger heatsink and the board layout it's a bit different) and none came with the R2 resistor soldered, tomorrow or maybe the day after I'll receive 2 more and i'll check if they have the resistor soldered Hum, you might be right... In this photo I can't find see the R2 resistor soldered... But then, Quote from: Raptor2213 on April 08, 2014, 05:56:32 AM Quote from: Jay_Pal on April 07, 2014, 12:45:09 PM Quote from: Raptor2213 on April 06, 2014, 07:32:12 PM The Antminer S2 does not appear to have the same resistor configuration. Has anyone looked into what would be required to increase the voltage? Did you meant "U2? I read somewhere those already have the resistors soldered on. Yes, the U2. They do, but they seem to have OC issues at anything higher than 2.4Ghash. Seems to be a voltage issue. So, now I'm confused. Can somebody clear this up, please? I've found that in fact some Ant's come with the R2 resistor soldered I think that those are called U2+ the others are just U2

2

Bitcoin / Mining support / Re: Bitmain AntMiner U1 Tips & Tricks

on: April 28, 2014, 09:40:30 PM

Quote from: Jay_Pal on April 25, 2014, 12:42:10 PM Quote from: BRADLEYPLOOF on April 25, 2014, 12:12:23 PM Quote from: omgbossis21 on April 25, 2014, 08:12:51 AM How can I overclock the u2 (supposed to be u2+'s I got) with bfg past 2.2? I have two plugged in my desktop doing 2.2 with - hw errors so I know I can take them higher..... You'll need a few of the correct resistors to solder in, a fan, some heatsinks, and a powered USB hub. Then, look at https://www.bitmaintech.com/userfiles/download/AntMiner%20U1%20user%20guide.pdf Sorry, but that was to the the U1. The U2 already have the resistor soldered on and the heatsink. All you have to do is use the correct version of CGMiner and input the correct frequency parameters, as described in earlier posts on this same topic. That's odd I have 3 Ant's with board 1.2 (I think that they are really U2 because they came with the larger heatsink and the board layout it's a bit different) and none came with the R2 resistor soldered, tomorrow or maybe the day after I'll receive 2 more and i'll check if they have the resistor soldered

3

Bitcoin / Mining software (miners) / Re: Bitminter client (Windows/Linux/Mac)

on: April 17, 2014, 09:01:08 PM

Quote from: DrHaribo on April 17, 2014, 07:59:58 PM Hm, that is odd. I only have one Antminer U1 and I can change the speed up and down fine with it plugged in. Does it help if you set their speed to 3 GH/s, see two of them fail, then restart Bitminter client? I don't know what is causing that issue. Anyone else having such problems? no, restart bitminter does not help Quote from: Fluke. on April 17, 2014, 08:50:06 PM I have a similar problem with one of my Ants U2. When trying to set the speed above 1.6 GH/s the self test times out almost every time. But if I got it work after numerous times trying or with the "trick" changing with another Ant, it works fine for example at 2.0 GH/s with zero miscalculations. Yes that's what it's happening with me, but my Ants are volt moded and i can reach 3GH/s without errors

4

Bitcoin / Mining software (miners) / Re: Bitminter client (Windows/Linux/Mac)

on: April 17, 2014, 07:41:16 PM

Quote from: DrHaribo on April 17, 2014, 07:31:05 PM Quote from: Jovim on April 17, 2014, 07:05:41 PM maybe I was not clear... the thing is that when I swap the antminers from one usb to another where the antminer that works fine was, then they start to work fine with the settings that the good antminer had (but previously they didn't get even to 2GH/s) is that a bug on the bitminter software or or is it a problem with the antminers? the antminers must have some difference but they are able to work at the same speed as I had proven with that swap. Is there a way to disable self test? Maybe it would work fine without self test The self test is that the app sends some work to the device where it knows what the answer should be. If this comes back wrong, that's not good. You'd get hardware errors while mining. It does try several times though, and if the device is able to get it right once, it will mine (and get some hardware errors, but hopefully not 100%). If it gets no good results for a while, it runs self test again. I'm not sure what's going on there. Bitminter client treats them the same, I don't think there's a problem there. But I really don't know why one COM port would work better than another. Is there any difference between the ports? Or are they all the same (on PC, or on same hub)? Yes they are in the same computer and they are plugged directly to my pc USB's (they can deliver much more than 500mA) the thing is that I can't set a clock directly on those antminers I have to "preset" with the miner that works fine and then change. they are now working at 3GH/s for more than 4 hours with more than 10000 prof of work each and 0 hardware errors (I have active cooling to prevent over heating, a small 5V 25*25mm fan on each one does the trick). so they can effectively mine at those speeds. I just dont understand why I'm not able to set the clock directly

5

Bitcoin / Mining software (miners) / Re: Bitminter client (Windows/Linux/Mac)

on: April 17, 2014, 07:05:41 PM

maybe I was not clear... the thing is that when I swap the antminers from one usb to another where the antminer that works fine was, then they start to work fine with the settings that the good antminer had (but previously they didn't get even to 2GH/s) is that a bug on the bitminter software or or is it a problem with the antminers? the antminers must have some difference but they are able to work at the same speed as I had proven with that swap. Is there a way to disable self test? Maybe it would work fine without self test

6

Bitcoin / Mining software (miners) / Re: Bitminter client (Windows/Linux/Mac)

on: April 17, 2014, 05:09:59 PM

Hi! I already posted this issue in the " Bitmain AntMiner U1 Tips & Tricks topic" but maybe here someone can have the same issue. I have a problem with two of my Antminer U2 (rev 1.2). I'm using bitminter software to run those, another U2, a block erupter USB and mu GPU. All the miners are resitor moded and thei ar getting ~1.1V I can clock one of the U2 to 3GH/s with no/few errors but with the other two I'm only able to clock it to 1.65GH/s or sometimes to 1.75GH/s Then I figured out one thing, imagine that Antminer n.1 (that is the one that i can clock to 3GH/s)is detected as COM10 Antminer n.2 as COM11 and Antminer n.3 as COM12. If i change usb ports uith Antminer n.1 and antminer n.2 now antminer n.1 is detected as COM 11 and antminer n.2 as COM10 doing this and starting the antminer n.2 is now clocked at 3GH/s (wow!!! ) and n.1 was with the clock that n.2 had previously, now I set the n.1 clock again to 3GH/s and it works (its not an USB port problem) then I sitched again n.1 with n.3 and surprise surprise it started doing 3GH/s too, the i just set the clock again on the n.1 and it started doing 3GH/s too, so now i have all three doing 3GH/s. My question is... is that a problem with bitminter or is it a problem with the Antminers? when i try to change the clock beyond 1.65GH/s on those antminers i get this Code: 2014.04.17 [16:08] Antminer (COM37): Tuning timers. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0E but got 0xF9AEBE00. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0A but got 0x8C000000. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Timed out at 25001 ms. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0A but got 0x8E000000. 2014.04.17 [16:09] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:09] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:10] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:10] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. sometimes the "Expected nonce 0xFFFFFE0E but got 0xF9AEBE00" error does not show but the time out error shows every time i try to change the clock I hope that I was clear enough, I'll explain better if anyone get any doubt about my problem

7

Bitcoin / Mining support / Re: Bitmain AntMiner U1 Tips & Tricks

on: April 17, 2014, 03:12:40 PM

Hi! I have a problem with two of my Antminer U2 (rev 1.2). I'm using bitminter software to run those, another U2, a block erupter USB and mu GPU. All the miners are resitor moded and thei ar getting ~1.1V I can clock one of the U2 to 3GH/s with no/few errors but with the other two I'm only able to clock it to 1.65GH/s or sometimes to 1.75GH/s Then I figured out one thing, imagine that Antminer n.1 (that is the one that i can clock to 3GH/s)is detected as COM10 Antminer n.2 as COM11 and Antminer n.3 as COM12. If i change usb ports uith Antminer n.1 and antminer n.2 now antminer n.1 is detected as COM 11 and antminer n.2 as COM10 doing this and starting the antminer n.2 is now clocked at 3GH/s (wow!!! ) and n.1 was with the clock that n.2 had previously, now I set the n.1 clock again to 3GH/s and it works (its not an USB port problem) then I sitched again n.1 with n.3 and surprise surprise it started doing 3GH/s too, the i just set the clock again on the n.1 and it started doing 3GH/s too, so now i have all three doing 3GH/s. My question is... is that a problem with bitminter or is it a problem with the Antminers? when i try to change the clock beyond 1.65GH/s on those antminers i get this Code: 2014.04.17 [16:08] Antminer (COM37): Tuning timers. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0E but got 0xF9AEBE00. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0A but got 0x8C000000. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Timed out at 25001 ms. 2014.04.17 [16:08] Antminer (COM37) ERROR: Selftest error. Expected nonce 0xFFFFFE0A but got 0x8E000000. 2014.04.17 [16:09] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:09] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:10] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms. 2014.04.17 [16:10] Antminer (COM37) ERROR: Selftest error. Timed out at 25000 ms.

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