Avalon ASIC users thread - page 132.

NiteShdw

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Quote from: el_rlee on July 06, 2013, 03:45:35 AM

Quote from: NiteShdw on July 06, 2013, 03:14:47 AM

I have 3 Avalons and I'm working on putting in a dedicated circuit in the basement for them. At an estimated 2100 watts at 110v (USA), I'm looking at 19A, which just pushes the limits of standard 20A breakers, with no room for future expansion.

What I've been thinking is that I can wire up an outlet at 220v, get slightly better power efficiency, and reduce my amps to about 10A, leaving plenty of room for future boxes.

Can anyone advise on a proper wiring diagram for 220v that's compatible with the 3-pin input on the Avalon PSUs?

As of right now, my understanding is that I'd wire black and white both to hot (on a dual-pole 20A breaker) and ground to ground, with no neutral. I should get 220v with the two hots as the breaker pulls in 110 and -110 for the two hots. I know I would need to get the correct outlets for 220v also as well as adapters or proper 220v PSU cables.

http://en.wikipedia.org/wiki/IEC_60320 . The biggest and longest pin is PE.

Sorry, I don't understand your response. The C13 connector for the PSU has three pins that are all the same size. The middle pin is ground, and I assume I'd wire my two hot leads to the other two.

For the receptacle, I was looking at something like this.

cypherdoc

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actually doing quite well:

NiteShdw

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Activity: 69

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Quote from: cypherdoc on July 06, 2013, 09:02:40 AM

Quote from: area on July 06, 2013, 05:44:42 AM

So which pools are people using for their Avalons?

i've used ozcoin and slush.

I'm using EclipseMC.com. No fees and it's a good size pool (7TH/s).

cypherdoc

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Quote from: cypherdoc on July 06, 2013, 10:03:14 AM

Quote from: -ck on July 06, 2013, 09:57:15 AM

Quote from: cypherdoc on July 06, 2013, 09:19:08 AM

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

It's going to really struggle to keep it at 40 degrees. That's probably why.

well, if that's the case then i'm going to try this: --avalon-auto --avalon-freq 350-375 --avalon-temp 40

i don't care about killing the fans. they can be replaced. i want to get the freq and resulting HR up (w/o killing the chips of course Tongue

)

after 24 min, so far so good:

cypherdoc

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Quote from: -ck on July 06, 2013, 09:57:15 AM

Quote from: cypherdoc on July 06, 2013, 09:19:08 AM

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

It's going to really struggle to keep it at 40 degrees. That's probably why.

well, if that's the case then i'm going to try this: --avalon-auto --avalon-freq 350-375 --avalon-temp 40

i don't care about killing the fans. they can be replaced. i want to get the freq and resulting HR up (w/o killing the chips of course Tongue

)

-ck

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Ruu \o/

Quote from: cypherdoc on July 06, 2013, 09:19:08 AM

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

It's going to really struggle to keep it at 40 degrees. That's probably why.

elasticband

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Nighty Night Don't Let The Trolls Bite Nom Nom Nom

can i ask what acceptable HW error rates are?
All my machines are running the 20130519b firmware, 2 of my machines i have set on 355mhz and they are getting around 1.6% - 1.8% HW if i do the equation HW x 100 / diff1shares(+HW), these 2 machines have been runnning around 84gh steadily.

My other 3 machines i have set on 345mhz and they get around 0.5-07% errors and they run at around 82ghs

cypherdoc

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Quote from: BenTuras on July 06, 2013, 09:27:54 AM

Quote from: cypherdoc on July 06, 2013, 09:19:08 AM

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 G Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

Set the temp to 50 and try again. Could take a while before it starts increasing the freq. You can set the starting freq if you like.
You are also giving it confusing arguments: Starting freq 325, and maintain freq between 285-305. Starting freq is ok, set freq range to 275-350 and try again.

maybe i wasn't clear.

con specifically said that it shouldn't matter what figure you insert into the "Chip Frequency(Default: 300)" box. i just happened to have 325 in there over the last 15h. the result is actual frequencies of 3 avalons btwn 285-305. i would've thought that would be enough time for the auto setting to have ramped those to around 350.

having said all that, i just went ahead and changed the 325 to 350 and already i've moved up to close to 80 Mh/s with freq of around 330. maybe the default setting does matter?

BenTuras

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Quote from: cypherdoc on July 06, 2013, 09:19:08 AM

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 G Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

Set the temp to 50 and try again. Could take a while before it starts increasing the freq. You can set the starting freq if you like.
You are also giving it confusing arguments: Starting freq 325, and maintain freq between 285-305. Starting freq is ok, set freq range to 275-350 and try again.

cypherdoc

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Activity: 1764

Merit: 1002

just checked my freq after 15h of continuous uptime.

i've got settings of --avalon -auto --avalon -temp 40 and i have 325 set in default box above. according to con the latter shouldn't matter.

problem is that hashrate is averaging only about 70 Mh/sec. i thought it was supposed to go as high as 80-85?

edit: and freq are btwn 285-305

bitdude

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i'm trying bitminter

cypherdoc

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Quote from: area on July 06, 2013, 05:44:42 AM

So which pools are people using for their Avalons?

i've used ozcoin and slush.

-ck

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Merit: 1631

Ruu \o/

Quote from: fpgaminer on July 06, 2013, 04:34:05 AM

ckolivas, thank you for all of your hard work! I had a question about your latest Avalon firmware (20130703). I upgraded one of my Avalons to it tonight (was running ~20130624 at the time). I noticed that suddenly the numbers reported under MHS5s lost a lot of variance. This is a graph of MHS5s over time:

8pm is when I upgraded the unit to 20130703. You can see that it suddenly quieted down quite a bit. Before and after the upgrade I was using a constant clock frequency (345).

I'm curious, did you change any of the code related to that particular statistic?

Well spotted. I fixed the hashrate meter for 5s so it really is a true exponentially decaying 5s average now. The old hashmeter was a little more "imaginitive".

Just as an aside, I am currently touring through Europe for the next 6 weeks. So while I will have generous internet access at times to answer questions, there is close to zero chance of me creating new firmware, especially since my main development machine with build environments and so on decided to fail about 1 hour before I left home and I just left it off in disgust. So please keep your requests on hold till then.

area

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So which pools are people using for their Avalons?

GenTarkin

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if I had to guess, yes its lower variance, which means its probably a good thing... means more effecient hashing / comms .. etc.. but thats just my guess =)

fpgaminer

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ckolivas, thank you for all of your hard work! I had a question about your latest Avalon firmware (20130703). I upgraded one of my Avalons to it tonight (was running ~20130624 at the time). I noticed that suddenly the numbers reported under MHS5s lost a lot of variance. This is a graph of MHS5s over time:

8pm is when I upgraded the unit to 20130703. You can see that it suddenly quieted down quite a bit. Before and after the upgrade I was using a constant clock frequency (345).

I'm curious, did you change any of the code related to that particular statistic?

el_rlee

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Quote from: NiteShdw on July 06, 2013, 03:14:47 AM

I have 3 Avalons and I'm working on putting in a dedicated circuit in the basement for them. At an estimated 2100 watts at 110v (USA), I'm looking at 19A, which just pushes the limits of standard 20A breakers, with no room for future expansion.

What I've been thinking is that I can wire up an outlet at 220v, get slightly better power efficiency, and reduce my amps to about 10A, leaving plenty of room for future boxes.

Can anyone advise on a proper wiring diagram for 220v that's compatible with the 3-pin input on the Avalon PSUs?

As of right now, my understanding is that I'd wire black and white both to hot (on a dual-pole 20A breaker) and ground to ground, with no neutral. I should get 220v with the two hots as the breaker pulls in 110 and -110 for the two hots. I know I would need to get the correct outlets for 220v also as well as adapters or proper 220v PSU cables.

http://en.wikipedia.org/wiki/IEC_60320 . The biggest and longest pin is PE.

NiteShdw

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Activity: 69

Merit: 10

I have 3 Avalons and I'm working on putting in a dedicated circuit in the basement for them. At an estimated 2100 watts at 110v (USA), I'm looking at 19A, which just pushes the limits of standard 20A breakers, with no room for future expansion.

What I've been thinking is that I can wire up an outlet at 220v, get slightly better power efficiency, and reduce my amps to about 10A, leaving plenty of room for future boxes.

Can anyone advise on a proper wiring diagram for 220v that's compatible with the 3-pin input on the Avalon PSUs?

As of right now, my understanding is that I'd wire black and white both to hot (on a dual-pole 20A breaker) and ground to ground, with no neutral. I should get 220v with the two hots as the breaker pulls in 110 and -110 for the two hots. I know I would need to get the correct outlets for 220v also as well as adapters or proper 220v PSU cables.

el_rlee

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