Avalon ASIC users thread - page 170.

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

Quote from: loshia on June 21, 2013, 07:26:43 AM

Con,

Just a thought about 39:325. I do not know why 40:300 was increased to 43:300 with latest updates, but i am positive that 3.1 with 40:300 is making 70500-71000 stable. Following that logic will 37:325 be better?

No, the latency number (43) only affects the risk of duplicates and the code has been so drastically changed since the original code that the higher value is actually better since it reloads work less frequently and uses less CPU without any chance of dupes.

loshia

legendary

Activity: 1610

Merit: 1000

Con,

Just a thought about 39:325. I do not know why 40:300 was increased to 43:300 with latest updates, but i am positive that 3.1 with 40:300 is making 70500-71000 stable. Following that logic will 37:325 be better?

Sitarow

legendary

Activity: 1792

Merit: 1047

Quote from: uhoh on June 21, 2013, 07:06:13 AM

Quote from: -ck on June 21, 2013, 07:01:45 AM

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

Wow, that's damn impressive. I smell a hashrate spike!

Nice work and thank you for sharing your results.

I upgraded to the 860i and I find that as long as the ambient temps are in the 20 range then the hardware should be able to cope with the increased speed.

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

Quote from: irritant on June 21, 2013, 07:07:58 AM

Quote from: -ck on June 21, 2013, 07:01:45 AM

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

does the Avalon temp increase?

Indeed, but the fans also increase, so it only went up by 2 degrees here max here (it's winter here).

irritant

sr. member

Activity: 473

Merit: 250

Sodium hypochlorite, acetone, ethanol

Quote from: -ck on June 21, 2013, 07:01:45 AM

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

does the Avalon temp increase?

uhoh

hero member

Activity: 742

Merit: 500

Circle gets the Square

Quote from: -ck on June 21, 2013, 07:01:45 AM

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

Wow, that's damn impressive. I smell a hashrate spike!

loshia

legendary

Activity: 1610

Merit: 1000

Quote from: -ck on June 21, 2013, 07:01:45 AM

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

Thanks a lot!

It seems that it will be sleepless night for me Wink

I will be gentle start with 325 first

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

After a few more minutes it's up to

Code:

(5s):83.39G (avg):82.64Gh/s | A:350  R:0  HW:357  U:21.4/m  WU:1173.2/m

Power usage only went up by 5W going to 325 and 10W going to 350. 375 was unstable. The code is already in git master along with the values in ASIC README

34:375
36:350
39:325

Since mine is a batch 2, it has a 750W PSU and it does not seem to be a power issue at 350, but HW errors go nuts above this.

loshia

legendary

Activity: 1610

Merit: 1000

Quote from: -ck on June 21, 2013, 06:52:35 AM

Even better, I've tried implementing overclocking to higher frequencies and can get my Avalon stable at 350 (without any voltage mods).

It was unstable at 375, but this is at 350 (diff 56) after a few mins:
(5s):81.58G (avg):81.55Gh/s | A:144 R:0 HW:135 U:22.4/m WU:1158.3/m

Nice!

What timing have you used (--avalon-options)?

Did you change PSU? I am positive that stock green power 650W will die. Did you measure Power consumption?

PS: Can you post a patch for overclocking somewhere?

10X
And Congats Enjoy your Avalon toy!

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

Even better, I've tried implementing overclocking to higher frequencies and can get my Avalon stable at 350 (without any voltage mods).

It was unstable at 375, but this is at 350 (diff 56) after a few mins:
(5s):81.58G (avg):81.55Gh/s | A:144 R:0 HW:135 U:22.4/m WU:1158.3/m

loshia

legendary

Activity: 1610

Merit: 1000

Quote from: -ck on June 20, 2013, 08:24:11 PM

Quote from: loshia on June 16, 2013, 05:31:30 AM

With my deep respect to Con and Kano i can state following:

I calculate my ACTUAL hash rate as advised by Kano taking in account Diff1 shares accepted from pool(s) and cgminer up-time. This gives me EXACT (Real) hashrate. Knowing the fact my network was fine and i did not have downtime due to Network issues, pool issues or FPGA controller hangs (I am monitoring it every two minutes + automated power off/on no reboots) i am 100% sure that 3.2 is not performing.

PS: just for the reference (do math yourself)

Computer: cgminer 3.1.1
Elapsed: 7h 11m 30s
Difficulty Accepted:431530.00000000
MHS:71587.77

That was not happening with 3.2

Found the regression and I've rewritten the code to avoid this performance loss. It is committed to the master git tree now and will be in the next release. Hopefully xiangfu will be able to make an official testing firmware with it before then too.

I will test it tonight Wink

And i will share my findings in the morning. Let us hope that bitminter will not be dosed overnight

Thank you very much CON!

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

Quote from: loshia on June 16, 2013, 05:31:30 AM

With my deep respect to Con and Kano i can state following:

I calculate my ACTUAL hash rate as advised by Kano taking in account Diff1 shares accepted from pool(s) and cgminer up-time. This gives me EXACT (Real) hashrate. Knowing the fact my network was fine and i did not have downtime due to Network issues, pool issues or FPGA controller hangs (I am monitoring it every two minutes + automated power off/on no reboots) i am 100% sure that 3.2 is not performing.

PS: just for the reference (do math yourself)

Computer: cgminer 3.1.1
Elapsed: 7h 11m 30s
Difficulty Accepted:431530.00000000
MHS:71587.77

That was not happening with 3.2

Found the regression and I've rewritten the code to avoid this performance loss. It is committed to the master git tree now and will be in the next release. Hopefully xiangfu will be able to make an official testing firmware with it before then too.

Syke

legendary

Activity: 3878

Merit: 1193

Quote from: SolarSilver on June 10, 2013, 07:49:42 AM

Quote from: pikeadz on June 10, 2013, 07:30:11 AM

I would like to set all this up in my house. Here, we have 120 volt lines and 15 amp breakers.

so on circuit you can have 120 x 15= 1800 Watts maximum (not taking in account Cos phi effects and such)

Buy a kill-a-watt and mesure the exact consumption of your individual machines in action. Slap on some extra safety margin

For example, with this weather, my Batch #1 Avalon @ 300 MHz are consuming 655 Watts

So three machines would be > 1800 (and I would not try to load it to 99%)

You should not go over 80% for a continuous load like a miner. Keep it under 1440 watts for a 15 amp breaker.

goxed

legendary

Activity: 1946

Merit: 1006

Bitcoin / Crypto mining Hardware.

Quote from: PuertoLibre on June 19, 2013, 09:28:08 PM

May I ask what the direct USB feature is?

Somewhat along these lines: USB communication to the USB chip without UART emulation

PuertoLibre

legendary

Activity: 1890

Merit: 1003

May I ask what the direct USB feature is?

xiangfu

full member

Activity: 120

Merit: 100

Hi Avalon users

The first direct usb firmware released (Version: 20130607)
Please read the ChangeLog before reflash, here: https://en.bitcoin.it/wiki/Avalon#20130607
How to reflash: https://en.bitcoin.it/wiki/Avalon#How_to_reflash

If you have any problem on Avalon, please read/search this page first: https://en.bitcoin.it/wiki/Avalon.

Best Regards
Xiangfu

darkip

full member

Activity: 160

Merit: 100

Quote from: cypherdoc on June 16, 2013, 07:46:45 AM

Aren't all current units arriving with this modification already performed?

Mine were part of the earlier batch 2 deliveries with the F1 fuse still present.

Elokane

hero member

Activity: 817

Merit: 1000

Truth is a consensus among neurons www.synereo.com

What's the most up to date Avalon set up/user guide?

cypherdoc

legendary

Activity: 1764

Merit: 1002

Quote from: darkip on June 07, 2013, 04:51:59 AM

I removed the F1 fuses on my two Avalons this morning - It's surprisingly easy (DISCLAIMER - I'm not responsible for any issues), I just pinched off the fuses with my leatherman pliers.

All back up and running perfectly.

For anyone interested, after running for a week with the fuses, there was no noticeable damage to the chips on the control boards. However, it's still recommended to remove the fuses.

Aren't all current units arriving with this modification already performed?

loshia

legendary

Activity: 1610

Merit: 1000

Quote from: Kuma on June 16, 2013, 06:05:03 AM

To be honest, I haven't tried to compute that and I don't have the old reference numbers. As new FW is rock stable for me, I haven't tried other things yet due the time restrictions Sad

. Of course if performance can be better, I'll be glad

.

I do agree with you 3.1 still needs power off/on on occasions. This happens rare for sure but still happens. As long as i solved this from day one, 3 000 MHS do matter for me and i am sticking to 3.1
Let us wait for Con comments.

Best

Topic: Avalon ASIC users thread - page 170. (Read 438600 times)