What is the payback of this miner at the current moment with the current complexity?
I'm earning about $1/day/841 after I subtract my electrical cost (about $0.08/kwh).
Topic: Avalon 8 official specs released - page 5. (Read 30297 times)
I'm earning about $1/day/841 after I subtract my electrical cost (about $0.08/kwh).
Anyone hear on news for the new batch of miners yet? Or is it unlikely until winter months?
thanks for linking. I saw the commands but assume it is a combination of commands like adjusting voltage and frequency. I need to setup a test machine and try some.
That's exactly what they are. Many people here were de-clocking frequency and voltages, to help lower their temps. However,
I believe that same logic could be used to overclock. Instead of going negative to lower, move them positive to increase chip
speeds.
"extra options" for clocking. Personally, on a hot day 90°f and above, my 841's push ~14TH/s with no adjustments.
However, they also draw more power as a result. Goodluck!!!
Edit: it was this thread. Ha!!!
https://bitcointalksearch.org/topic/m.37085708
thanks for linking. I saw the commands but assume it is a combination of commands like adjusting voltage and frequency. I need to setup a test machine and try some.
has anyone tried overclocking these? I know Steve mentioned they should be capable of going up to 16TH or so.
Check the posts in the Hardware section.
"extra options" for clocking. Personally, on a hot day 90°f and above, my 841's push ~14TH/s with no adjustments.
However, they also draw more power as a result. Goodluck!!!
Edit: it was this thread. Ha!!!
https://bitcointalksearch.org/topic/m.37085708
has anyone tried overclocking these? I know Steve mentioned they should be capable of going up to 16TH or so.
Tried changing the wall wart feeding the RasPi? Make sure it is rated at 2.5A or more so it has capacity to feed all UAC's and their strings.
Also, this really should be in the Avalon Troubleshooting & Repair thread...
Also, this really should be in the Avalon Troubleshooting & Repair thread...
Ah, hadn't spotted that thread - sorry.
No, I haven't changed them the wall warts - using the ones that came with the Pi 3s, all of which are rated at 2.5A. Only running (3) AUCs, not (4) per controller as well.
Tried changing the wall wart feeding the RasPi? Make sure it is rated at 2.5A or more so it has capacity to feed all UAC's and their strings.
Also, this really should be in the Avalon Troubleshooting & Repair thread...
Also, this really should be in the Avalon Troubleshooting & Repair thread...
Well you said -1 does not work.
And you said 0 does not work.
So trying -2 first with chains as they are is different combination to try
Trying -2 with a shorter chain is a second different thing to try.
My assumption for -2 is a heat issue causes the issue
My assumption for chains of three is second choice
And you said 0 does not work.
So trying -2 first with chains as they are is different combination to try
Trying -2 with a shorter chain is a second different thing to try.
My assumption for -2 is a heat issue causes the issue
My assumption for chains of three is second choice
Thanks for explaining your logic. Alas, heat was not the issue - this happened on one of our cooler days.
Given that others report no problems running thousands of Avalons with full 20 member configurations, I'm curious what the basis of your recommendation is? Also -2 is suppose to be less stable than -1 per Canaan, so am again confused. Please explain.
Well you said -1 does not work.
And you said 0 does not work.
So trying -2 first with chains as they are is different combination to try
Trying -2 with a shorter chain is a second different thing to try.
My assumption for -2 is a heat issue causes the issue
My assumption for chains of three is second choice
Massive increase in difficulty in 1 day 2 days ago. Means someone got new miner tech online all a sudden in massive scale. My guess is bitmain will be coming with their new miners soon for sale since they drastically dropped prices. Now avalon will have to get some new miners out before Q4 to keep up.
Canaan updated their WiKi for the 851, official firmware and MM released...no specs on the miner yet that I have seen
https://github.com/Canaan-Creative/avalon8-docs/wiki
https://github.com/Canaan-Creative/avalon8-docs/wiki
Try shorter chains three per auc
And three auc per rasp pi
Also try -2 vs -1
Given that others report no problems running thousands of Avalons with full 20 member configurations, I'm curious what the basis of your recommendation is? Also -2 is suppose to be less stable than -1 per Canaan, so am again confused. Please explain.
I'mn having a slightly annoying problem. A few times now I've had multiple 841s (say 3 out of 22) drop from ~13TH to ~10Th. A reboot recovers the hash rate. One of those boxes does this fairly routinely, roughly weekly.
Running at a -1 offset, but experienced this at default levels as well.
Any suggestions?
Running at a -1 offset, but experienced this at default levels as well.
Any suggestions?
Try shorter chains three per auc
And three auc per rasp pi
Also try -2 vs -1
I'mn having a slightly annoying problem. A few times now I've had multiple 841s (say 3 out of 22) drop from ~13TH to ~10Th. A reboot recovers the hash rate. One of those boxes does this fairly routinely, roughly weekly.
Running at a -1 offset, but experienced this at default levels as well.
Any suggestions?
Running at a -1 offset, but experienced this at default levels as well.
Any suggestions?
Thanks, I didn't know it went past -2, where is this documented at currently?
Here:
Code:
#ifdef USE_AVALON8
OPT_WITH_CBARG("--avalon8-voltage-level",
set_avalon8_voltage_level, NULL, &opt_set_avalon8_voltage_level,
"Set Avalon8 default level of core voltage, range:[0, 15], step: 1"),
OPT_WITH_CBARG("--avalon8-voltage-level-offset",
set_avalon8_voltage_level_offset, NULL, &opt_set_avalon8_voltage_level_offset,
"Set Avalon8 default offset of core voltage level, range:[-2, 1], step: 1"),
OPT_WITH_CBARG("--avalon8-freq",
set_avalon8_freq, NULL, &opt_set_avalon8_freq,
"Set Avalon8 default frequency, range:[25, 1200], step: 25, example: 800"),
OPT_WITH_ARG("--avalon8-freq-sel",
set_int_0_to_4, opt_show_intval, &opt_avalon8_freq_sel,
"Set Avalon8 default frequency select, range:[0, 4], step: 1, example: 3"),
OPT_WITH_CBARG("--avalon8-fan",
set_avalon8_fan, NULL, &opt_set_avalon8_fan,
"Set Avalon8 target fan speed, range:[0, 100], step: 1, example: 0-100"),
OPT_WITH_ARG("--avalon8-temp",
set_int_0_to_100, opt_show_intval, &opt_avalon8_temp_target,
"Set Avalon8 target temperature, range:[0, 100]"),
OPT_WITH_ARG("--avalon8-polling-delay",
set_int_1_to_65535, opt_show_intval, &opt_avalon8_polling_delay,
"Set Avalon8 polling delay value (ms)"),
OPT_WITH_ARG("--avalon8-aucspeed",
opt_set_intval, opt_show_intval, &opt_avalon8_aucspeed,
"Set AUC3 IIC bus speed"),
OPT_WITH_ARG("--avalon8-aucxdelay",
opt_set_intval, opt_show_intval, &opt_avalon8_aucxdelay,
"Set AUC3 IIC xfer read delay, 4800 ~= 1ms"),
OPT_WITH_ARG("--avalon8-smart-speed",
opt_set_intval, opt_show_intval, &opt_avalon8_smart_speed,
"Set Avalon8 smart speed, range 0-1. 0 means Disable"),
OPT_WITH_ARG("--avalon8-th-pass",
set_int_0_to_65535, opt_show_intval, &opt_avalon8_th_pass,
"Set A3210 th pass value"),
OPT_WITH_ARG("--avalon8-th-fail",
set_int_0_to_65535, opt_show_intval, &opt_avalon8_th_fail,
"Set A3210 th fail value"),
OPT_WITH_ARG("--avalon8-th-init",
set_int_0_to_65535, opt_show_intval, &opt_avalon8_th_init,
"Set A3210 th init value"),
OPT_WITH_ARG("--avalon8-th-ms",
set_int_0_to_65535, opt_show_intval, &opt_avalon8_th_ms,
"Set A3210 th ms value"),
OPT_WITH_ARG("--avalon8-th-timeout",
opt_set_uintval, opt_show_uintval, &opt_avalon8_th_timeout,
"Set A3210 th timeout value"),
OPT_WITH_ARG("--avalon8-th-add",
set_int_0_to_1, opt_show_intval, &opt_avalon8_th_add,
"Set A3210 th add value"),
OPT_WITHOUT_ARG("--avalon8-iic-detect",
opt_set_bool, &opt_avalon8_iic_detect,
"Enable Avalon8 detect through iic controller"),
OPT_WITH_ARG("--avalon8-nonce-mask",
set_int_24_to_32, opt_show_intval, &opt_avalon8_nonce_mask,
"Set A3210 nonce mask, range 24-32."),
OPT_WITH_ARG("--avalon8-nonce-check",
set_int_0_to_1, opt_show_intval, &opt_avalon8_nonce_check,
"Set A3210 nonce check, range 0-1."),
OPT_WITH_ARG("--avalon8-roll-enable",
set_int_0_to_1, opt_show_intval, &opt_avalon8_roll_enable,
"Set A3210 roll enable, range 0-1."),
OPT_WITH_ARG("--avalon8-mux-l2h",
set_int_0_to_2, opt_show_intval, &opt_avalon8_mux_l2h,
"Set Avalon8 mux l2h, range 0-2."),
OPT_WITH_ARG("--avalon8-mux-h2l",
set_int_0_to_1, opt_show_intval, &opt_avalon8_mux_h2l,
"Set Avalon8 mux h2l, range 0-1."),
OPT_WITH_ARG("--avalon8-h2ltime0-spd",
set_int_0_to_255, opt_show_intval, &opt_avalon8_h2ltime0_spd,
"Set Avalon8 h2ltime0 spd, range 0-255."),
#endif
Note that --avalon8-voltage-level and --avalon8-voltage-level-offset are two different parameters and therefore do two different things. You may, however, set both parameters concurrently.
Does it require a certain firmware?
All current A8 firmware releases support the above parameters.
Also is this for both 821 and 841?
Yes.
So far I've only lost (1) APW3++ power supply - a fairly new one (weeks old). Might have been to heat, might not, but the Avalons are hanging in there. I am running with option:
--avalon8-voltage-level-offset -1
Which is reported to help with heat at the cost of a small bit of performance.
--avalon8-voltage-level-offset -1
Which is reported to help with heat at the cost of a small bit of performance.
- -avalon8-voltage-level -1
—avalon8-voltage-level -2
—avalon8-voltage-level -3
—avalon8-voltage-level -4
- -avalon8-voltage-level -5
All work and allow safe running in a hot room.
They all drop hash and watts try -3 or -4
Thanks, I didn't know it went past -2, where is this documented at currently?
Does it require a certain firmware?
Also is this for both 821 and 841?
Thanks for all the information.
I'm currently getting 11.5TH at the pool using -2, haven't checked watt usage. They have stayed online for 24 hours so far.
@ccgllc
Does using a different AUC3 converter dongle in that chain make any difference?
Does using a different AUC3 converter dongle in that chain make any difference?
Should state that I still consider myself a newbie with Avalons, only having had them a couple of months now. So far, loss of the entire chain has been a one time thing. If its consistent, I'll try swapping out the AUC3 (have a couple of spares and more coming next week).
@ccgllc
Does using a different AUC3 converter dongle in that chain make any difference?
Does using a different AUC3 converter dongle in that chain make any difference?
I'm having a little weirdness in one of my strings of 841s:
It is configured with (3) AUC3 each with (5) 841s all running the latest MM code.
Over the past couple of weeks, occasionally I see an individual miner drop ~1/3rd of its hashrate. Rebooting that unit clears that up.
This morning, I had an entire string behind an AUC3 drop 1/3rd of its hashrate. Five boxes, all at once. Rebooting cleared them, but does anybody know what might be going on?
It is configured with (3) AUC3 each with (5) 841s all running the latest MM code.
Over the past couple of weeks, occasionally I see an individual miner drop ~1/3rd of its hashrate. Rebooting that unit clears that up.
This morning, I had an entire string behind an AUC3 drop 1/3rd of its hashrate. Five boxes, all at once. Rebooting cleared them, but does anybody know what might be going on?
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