Avalon ASIC users thread

[S M I L Y]

10X dude
i have looked at your photo with wires:) and i liked it very much. that explains things for us none experts.

have yo measured how much a module/chip draws at 400+ with avalon design?

At stock voltage?  or overvolt?    at stock you will not be able to get anywhere near 400mhz

[1679992295]

1679992295

[1679992295]

1679992295

[loshia]

10X dude
i have looked at your photo with wires:) and i liked it very much. that explains things for us none experts.

have yo measured how much a module/chip draws at 400+ with avalon design?

At stock voltage?  or overvolt?    at stock you will not be able to get anywhere near 400mhz

I mean overvolt.At plug (220V/110V - all modules and their count) or at 12V (single module) one of them will be ok  for me. I will have a clue approximately how much Amps each chip draws

10X

[S M I L Y]

10X dude
i have looked at your photo with wires:) and i liked it very much. that explains things for us none experts.

have yo measured how much a module/chip draws at 400+ with avalon design?

At stock voltage?  or overvolt?    at stock you will not be able to get anywhere near 400mhz

I mean overvolt.At plug (220V/110V - all modules and their count) or at 12V (single module) one of them will be ok  for me. I will have a clue approximately how much Amps each chip draws

10X

Im running with 31k piggyback and that gives me 1.336v under load at the bottom chip.

Be aware that for me at 460mhz I am 2x the wattage as a stock Avalon!   At bare MINIMUM you need a 1200watt powersupply for a 4 module unit!

I need to find out how to deal with 1600watt total at 460mhz!!!

Not at 400 but at 460 you can expect to be exactly 2x current of stock speeds.

[driksson]

hi,
i now got it on lan (after wifi not working well at all), but somehow, the lan ip was not working, i think i set the broadcast address wrong (since my hosting center has /28 subnet)
Anyway, i now reset it in to failsafe mode (ip became 192.168.1.1 as openwrt says ,not 192.168.0.100 as avalon says).
however, when i try command firstboot, i get this:
root@(none):/# firstboot
/sbin/firstboot: line 3: /sbin/jffs2reset: not found

Any idea how i can get it back to the working firmware with preset ip of 192.168.0.100? so i can login and set the new ip once again?
Thanks for help. Winning help gets minimum 1 hour of mining. (b2 3 unit 82gh)

EDIT: (this is where you set ip in openwrt if you entered it wrong)
vi /etc/config/network
config interface 'lan'
        option ifname 'eth0'
        option type 'bridge'
        option proto 'static'
        option ipaddr '192.168.0.100'
        option netmask '255.255.255.0'
        option gateway '192.168.0.1'
        option broadcast ''
        option dns ''

No deal winner this time..

[driksson]

question, im sure its been answered a thousand times, but the rejection rate, i see it a bit high now?
a:5929 r:434
but maybe it settles as ive read? running avalon-auto.

346 1800 2280 2400 21 46 46

i'll see in a while if it goes up to 350 as temp is ok, if it settles on a lower rate as previously shown in past of this thread.

4 hours in, and its still on 10% reject. That normal? on b2 3 unit, i now get 70avg instead of 80..
and its not hot, running 342mhz.
im setting --avalon-freq 340-355 to test..

works alot better with std freq 340, and avalon-freq 340-365.. 0.7% rejects.. temp 24 48 49.
Next il try std 350 and 350-375 or 380.

[cypherdoc]

i just upgraded to cgminer 8/21/13 and now 2 of my 3 avalons have yellow flashing lights even though they appear to be hashing just fine.

anyone else notice this and what does it mean?

[NiteShdw]

i just upgraded to cgminer 8/21/13 and now 2 of my 3 avalons have yellow flashing lights even though they appear to be hashing just fine.

anyone else notice this and what does it mean?

Don't worry about it. It's been mentioned before and said it has something to do with the changes in the timing code in the new firmware.  Mine are the same way and are mining a bit faster than with the 0703 firmware.

[cypherdoc]

i just upgraded to cgminer 8/21/13 and now 2 of my 3 avalons have yellow flashing lights even though they appear to be hashing just fine.

anyone else notice this and what does it mean?

Don't worry about it. It's been mentioned before and said it has something to do with the changes in the timing code in the new firmware.  Mine are the same way and are mining a bit faster than with the 0703 firmware.

yes, it's definitely kicked up the HR.

[el_rlee]

What's the hashrate with the wire mod @400 or 460Mhz? I got a 1000W PSU on a 3 Module machine, how far will it get me?

[S M I L Y]

What's the hashrate with the wire mod @400 or 460Mhz? I got a 1000W PSU on a 3 Module machine, how far will it get me?

@460Mhz  36Ghs per module.

~144GHs for a 4 module unit.   This consumes about 1700watt at the wall.

3 Modules should get you 108Ghs and you would need a 1200 watt supply at minimum.


Also the wire mod alone will not get you any where near 400mhz.  you need to hardware adjust your voltage up to at least 1.3 volts (im at 1.36v)  and you must do something about cooling!!!!!!

[spiccioli]

i just upgraded to cgminer 8/21/13 and now 2 of my 3 avalons have yellow flashing lights even though they appear to be hashing just fine.

anyone else notice this and what does it mean?

https://bitcointalk.org/index.php?topic=140539.msg3004093#msg3004093

spiccioli

[allinvain]

I'm not sure if this has already been asked (if so please just ignore my post and my apologies in advance) but with 07-23-13 firmware (latest on the avalon wiki page) I noticed the HW rate is higher than the "Accepted" shares. For example with 4 day uptime I get HW=137438 Accepted=66266

This is with cgminer 3.3.1 which is the stock cgminer that comes with 07-23.

The miner seems to be hashing fine and as far as I can tell there is no degradation in performance at the pool level. So it must be something with the way cgminer 3.3.1 does things I suppose.

I should mention that I use the --avalon-auto flag and it hovers typically around the 340 to 350 MHz mark. Temp is never above 50C for Temp3, Temp2 is 50, Temp1 is 27.

[el_rlee]

What's the hashrate with the wire mod @400 or 460Mhz? I got a 1000W PSU on a 3 Module machine, how far will it get me?

@460Mhz  36Ghs per module.

~144GHs for a 4 module unit.   This consumes about 1700watt at the wall.

3 Modules should get you 108Ghs and you would need a 1200 watt supply at minimum.


Also the wire mod alone will not get you any where near 400mhz.  you need to hardware adjust your voltage up to at least 1.3 volts (im at 1.36v)  and you must do something about cooling!!!!!!

Cooling shouldn't be an issue, mine are already water cooled (see my sig).
However I have to calculate if the increase justifies soldering around on my Avalons - also I have to solder it back one day probably...
28 Ghash more is not little, but I need to buy new PSU's and after all I could just buy some ASICMINER blades for 10btc which will give me more hashrate at less power consumption.

[BitCoiner2012]

Any thoughts on why any particular unit might be making a clicking sound occasionally? Can't isolate where the sound is from.. no weird operation.. running better than ever.. thoguhts? Potential PSU problem? ETc..

[kefky]

Any thoughts on why any particular unit might be making a clicking sound occasionally? Can't isolate where the sound is from.. no weird operation.. running better than ever.. thoguhts? Potential PSU problem? ETc..

Check your fans. What else could make clicking sound? That is the only moving part of the box.

[fpgaminer]

I noticed the HW rate is higher than the "Accepted" shares.

Accepted is a useless statistic here; look at DiffA.

Error % = HW * 100.0 / (DiffA + HW)

[SolarSilver]

I noticed the HW rate is higher than the "Accepted" shares.

Accepted is a useless statistic here; look at DiffA.

Error % = HW * 100.0 / (DiffA + HW)

Actually it's easy these days, install the 20130821 firmware from Con and have a look at the Device Hardware% line in Status -> Cgminer API Log:

[Bengel]

I just had an avalon that was running fine for weeks suddenly stop working

Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)

Where should I start looking for the problem?

[Bogart]

A huge bright spark came from inside my avalon twice.

Definitely not good.  What do your match_work_count numbers in Cgminer API Log look like now after a few hours of runtime?  Are they equal or disproportionate?

[Bogart]

I just had an avalon that was running fine for weeks suddenly stop working

Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)

Where should I start looking for the problem?

Start with the power supply.