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[kaerf]

my results are for an 8 chip h-card that i made (just a modified 16 chip card).
for my standard h-cards I used http://www.newark.com/abl-heatsinks/325ab1000b/heat-sink/dp/07WX4339 (needed to drill 2 holes), but I've actually ended up not heatsinking the majority of my hcards...didn't see all that much benefit (standard hcards would probably benefit most from good heatsinks on the reg...not an issue for your mod).

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[goxed]

my results are for an 8 chip h-card that i made (just a modified 16 chip card).
for my standard h-cards I used http://www.newark.com/abl-heatsinks/325ab1000b/heat-sink/dp/07WX4339 (needed to drill 2 holes), but I've actually ended up not heatsinking the majority of my hcards...didn't see all that much benefit (standard hcards would probably benefit most from good heatsinks on the reg...not an issue for your mod).

Aah okay the famous mini-H Actually I have also not seen major benefits with heatsinking h-card except for making the on-board regulator a bit stable. I am still trying to wrap my head around the issue of slower hash-rate at 0.9V. I was expecting somewhere in the ballpark of 40GH/s from 16chips.

Cool so newark sells heatskinks as well. This is useful info. Thanks

Btw did you make the boards through Oshpark? How soon was delivery?

[Asinine]

Updating, I went out this morning so I could get an 8 GB card to put the V2.5 Image on:  Noncerate: 459.189GH/s - 441 W at the wall.  So, I think I am at the point where it is just tweaking now.  IE:  upgrading to the v3 chainminer, tinkering with the voltages, and shuffling the weaker cards to the last slots of the groups.

can you post the link to the V2.5 image?  is that the latest version for v3 m boards and v2.2 h boards?

Sorry, looking back at the page, I don't know where I got the V2.5 from...

It may be the same as the second link on Buzz's page.  https://bitcointalk.org/index.php?topic=287590.0

Direct link to file:  https://dl.dropboxusercontent.com/u/43738391/2013-Sep-27_BFSB_GM2.rar

[cypherdoc]

Updating, I went out this morning so I could get an 8 GB card to put the V2.5 Image on:  Noncerate: 459.189GH/s - 441 W at the wall.  So, I think I am at the point where it is just tweaking now.  IE:  upgrading to the v3 chainminer, tinkering with the voltages, and shuffling the weaker cards to the last slots of the groups.

can you post the link to the V2.5 image?  is that the latest version for v3 m boards and v2.2 h boards?

Sorry, looking back at the page, I don't know where I got the V2.5 from...

It may be the same as the second link on Buzz's page.  https://bitcointalk.org/index.php?topic=287590.0

Direct link to file:  https://dl.dropboxusercontent.com/u/43738391/2013-Sep-27_BFSB_GM2.rar

that's the version i've been running for a couple of days on my v3 rig but its been suspiciously slow.

according to Dave's post up a few, it sounds like it's not the right one.  i look forward to him putting the right one up today.

[klondike_bar]

Code:

1	AIfDSo	56	2.777	2.558	194	0	0	0	242	[0:0]	1	12 12 12 12 13 13 12 12 12 12 12 12 12 12 12 12 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
2	AIfDSo	55	2.477	2.494	173	1	0	0	236	[0:1]	37	11 11 11 11 11 10 10 11 11 11 11 11 11 10 11 11 	0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
3	AIfDSo	54	2.334	2.452	163	3	0	0	232	[0:2]	38	11 11 11 11 11 10 10 10 10 10 10 9 10 10 9 10 	0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 
4	AIfDSo	56	2.620	2.336	183	1	0	0	221	[0:3]	2	12 11 11 11 11 11 11 11 11 12 11 12 12 12 12 12 	0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
5	AIfDSo	54	2.520	2.632	176	12	0	0	249	[0:4]	1	10 11 11 12 11 11 9 12 12 11 11 11 11 12 11 10 	1 0 0 0 1 1 3 0 0 1 1 1 1 0 1 1 
6	AIfDSo	54	2.362	2.706	165	14	0	0	256	[0:5]	5	9 10 11 11 10 11 11 11 10 10 11 11 10 10 9 10 	2 1 1 1 2 0 0 0 1 1 0 0 1 1 2 1 
7	AIfDSo	55	2.033	2.759	142	26	0	0	261	[0:6]	36	8 9 9 8 8 8 9 10 10 8 10 9 10 9 11 6 	2 1 1 2 2 2 1 1 1 3 1 2 1 2 0 4 	speed down
8	AIfDSo	54	2.849	2.706	199	1	0	0	256	[0:7]	2	12 12 12 12 12 12 12 13 13 13 13 12 13 13 13 12 	0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
9	AIfDSo	56	2.377	2.399	166	0	0	0	227	[0:8]	4	10 11 11 11 11 11 11 10 10 10 10 10 10 10 10 10 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
10	AIfDSo	56	2.448	2.399	171	0	0	0	227	[0:9]	6	10 10 10 11 11 11 11 11 11 11 11 11 11 11 10 10 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
11	AIfDSo	54	2.462	2.357	172	0	0	0	223	[0:A]	5	11 11 11 11 11 11 11 11 11 11 10 10 10 10 11 11 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 	speed up
12	AIfDSo	54	2.248	2.378	157	0	0	0	225	[0:B]	26	10 10 10 10 10 10 10 10 10 10 10 10 10 9 9 9 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
13	AIfDSo	56	2.419	2.537	169	2	0	0	240	[0:C]	3	11 11 11 11 11 11 11 10 10 10 9 10 11 10 11 11 	0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 
14	AIfDSo	56	2.591	2.431	181	2	0	0	230	[0:D]	0	12 12 11 11 11 11 11 10 11 10 11 12 12 12 12 12 	0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 
15	AIfDSo	54	1.890	2.960	132	102	0	0	280	[0:E]	7	11 9 10 9 9 9 10 7 6 10 9 8 8 4 5 8 	4 6 5 6 6 6 5 8 8 4 5 6 6 10 10 7 
speed:824 noncerate[GH/s]:36.407 (2.427/chip) hashrate[GH/s]:38.104 good:2543 errors:164 spi-errors:0 miso-errors:0 jobs:375 (record[GH/s]:37.037)
0:	824	36.407	38.104	2543	164	0	0

Used a modded EOL card with 15 chips for this test. At 0.9V

looks good! Push it to 0.94V and see what happens. IME, when the chips are between 53-55 tuning at higher voltage you get the best hashrate.

ps: how is the temperature in the capacitor clusters? in the second revision they were taken out of the deisgn since they often were creating a lot of heat relative to the chips, and with little or no benefit

[Asinine]

that's the version i've been running for a couple of days on my v3 rig but its been suspiciously slow.

according to Dave's post up a few, it sounds like it's not the right one.  i look forward to him putting the right one up today.

Going back through Dave's old posts, it looks like the major pieces are the v3 tuned Chainminer with improved timings and a button on the web page that allows you to shut the Pi down cleanly without having to SSH or jack into it. So, it might help with the speeds.  

When I first started up the V2, I had to enable all three of the stratum accounts on the settings page and gave them all the same account information.  I remembered that vaguely from posts back from the August release.  Before I did this, I was only getting about 130 GHash.  I also had issues with the V2 starting up the rig at about half it's actual speed and it's full power draw even after configuring it.  Giving the rig a couple of minutes to warm up, stopping, and starting the miner from the webpage seems to help.

Straying off the topic now:  For comparison, I was getting 360-400 GHash on BFG and am now getting 450-470 GHash on the legacy chain miner prior to tinkering with the individual card/chip settings.  The pool was following the miner's output closely enough to not be a concern.

One plus with BFG seems to be prioritized pool fail-over.

[Doff]

https://i.imgur.com/puIkEZC.jpg

Code:

1	AIfDSo	56	2.777	2.558	194	0	0	0	242	[0:0]	1	12 12 12 12 13 13 12 12 12 12 12 12 12 12 12 12 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
2	AIfDSo	55	2.477	2.494	173	1	0	0	236	[0:1]	37	11 11 11 11 11 10 10 11 11 11 11 11 11 10 11 11 	0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
3	AIfDSo	54	2.334	2.452	163	3	0	0	232	[0:2]	38	11 11 11 11 11 10 10 10 10 10 10 9 10 10 9 10 	0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 
4	AIfDSo	56	2.620	2.336	183	1	0	0	221	[0:3]	2	12 11 11 11 11 11 11 11 11 12 11 12 12 12 12 12 	0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
5	AIfDSo	54	2.520	2.632	176	12	0	0	249	[0:4]	1	10 11 11 12 11 11 9 12 12 11 11 11 11 12 11 10 	1 0 0 0 1 1 3 0 0 1 1 1 1 0 1 1 
6	AIfDSo	54	2.362	2.706	165	14	0	0	256	[0:5]	5	9 10 11 11 10 11 11 11 10 10 11 11 10 10 9 10 	2 1 1 1 2 0 0 0 1 1 0 0 1 1 2 1 
7	AIfDSo	55	2.033	2.759	142	26	0	0	261	[0:6]	36	8 9 9 8 8 8 9 10 10 8 10 9 10 9 11 6 	2 1 1 2 2 2 1 1 1 3 1 2 1 2 0 4 	speed down
8	AIfDSo	54	2.849	2.706	199	1	0	0	256	[0:7]	2	12 12 12 12 12 12 12 13 13 13 13 12 13 13 13 12 	0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
9	AIfDSo	56	2.377	2.399	166	0	0	0	227	[0:8]	4	10 11 11 11 11 11 11 10 10 10 10 10 10 10 10 10 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
10	AIfDSo	56	2.448	2.399	171	0	0	0	227	[0:9]	6	10 10 10 11 11 11 11 11 11 11 11 11 11 11 10 10 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
11	AIfDSo	54	2.462	2.357	172	0	0	0	223	[0:A]	5	11 11 11 11 11 11 11 11 11 11 10 10 10 10 11 11 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 	speed up
12	AIfDSo	54	2.248	2.378	157	0	0	0	225	[0:B]	26	10 10 10 10 10 10 10 10 10 10 10 10 10 9 9 9 	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
13	AIfDSo	56	2.419	2.537	169	2	0	0	240	[0:C]	3	11 11 11 11 11 11 11 10 10 10 9 10 11 10 11 11 	0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 
14	AIfDSo	56	2.591	2.431	181	2	0	0	230	[0:D]	0	12 12 11 11 11 11 11 10 11 10 11 12 12 12 12 12 	0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 
15	AIfDSo	54	1.890	2.960	132	102	0	0	280	[0:E]	7	11 9 10 9 9 9 10 7 6 10 9 8 8 4 5 8 	4 6 5 6 6 6 5 8 8 4 5 6 6 10 10 7 
speed:824 noncerate[GH/s]:36.407 (2.427/chip) hashrate[GH/s]:38.104 good:2543 errors:164 spi-errors:0 miso-errors:0 jobs:375 (record[GH/s]:37.037)
0:	824	36.407	38.104	2543	164	0	0

Used a modded EOL card with 15 chips for this test. At 0.9V

sexy...

i'm a little surprised at your chip speeds, though. At 0.9v, I'd found that dropping to 53 was most stable.

i think these numbers are for voltage around 0.9v (can't remember for sure and too lazy to test right now)

1   AIfDSo   53   2.634   2.854   184   0   0   0   270   [0:0]   0   11 11 11 12 12 12 12 12 12 12 12 11 11 11 11 11    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2   AIfDSo   53   2.491   2.759   174   5   0   0   261   [0:1]   0   11 10 11 11 11 11 11 10 11 11 11 11 11 11 11 11    0 1 0 0 0 0 0 1 0 0 0 0 1 1 1 0
3   AIfDSo   57   2.763   2.558   193   0   0   0   242   [0:2]   0   12 12 12 12 12 12 12 12 12 12 12 12 12 13 12 12    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4   AIfDSo   54   2.777   2.685   194   0   0   0   254   [0:3]   0   12 12 12 12 12 12 12 12 12 12 12 12 12 12 13 13    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0    speed up
5   AIfDSo   53   2.921   2.907   204   1   0   0   275   [0:4]   0   12 12 13 13 13 12 13 13 13 13 13 13 13 13 13 12    0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
6   AIfDSo   54   2.663   2.907   186   15   0   0   275   [0:5]   0   12 12 13 12 12 11 11 10 11 11 13 13 12 12 11 10    1 1 0 0 0 1 1 2 1 1 0 0 1 1 2 3    speed down
7   AIfDSo   53   2.849   2.854   199   2   0   0   270   [0:6]   0   12 13 13 13 12 12 12 12 12 12 12 13 13 13 13 12    1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
8   AIfDSo   52   2.606   2.621   182   0   0   0   248   [0:7]   0   11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 11    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
speed:429 noncerate[GH/s]:21.704 (2.713/chip) hashrate[GH/s]:22.143 good:1516 errors:23 spi-errors:0 miso-errors:0 jobs:296 (record[GH/s]:23.422)
0:   429   21.704   22.143   1516   23   0   0

(of course, chainminer autotuned a few chips, but initially 53 gave me the least errors)

I am very surprised as well. I has hoping for aforementioned per chip speeds. Are these results from a 16chip H-card? Any beefy heatsinks?

Is the only way to notch your speed up by making a best.cnf file? Also whats unlcear to me is when I make that best cnf file what all should be in it? Example: 1   AIfDSo   53  <-- is that the only line you need for each chip or should it be everything that the .stat.log has minus the very bottom readout?

[kaerf]

Aah okay the famous mini-H Actually I have also not seen major benefits with heatsinking h-card except for making the on-board regulator a bit stable. I am still trying to wrap my head around the issue of slower hash-rate at 0.9V. I was expecting somewhere in the ballpark of 40GH/s from 16chips.

Cool so newark sells heatskinks as well. This is useful info. Thanks

Btw did you make the boards through Oshpark? How soon was delivery?

yeah, i went through oshpark. i think my 3 boards were delivered in about 2-2.5 weeks.

[goxed]

Aah okay the famous mini-H Actually I have also not seen major benefits with heatsinking h-card except for making the on-board regulator a bit stable. I am still trying to wrap my head around the issue of slower hash-rate at 0.9V. I was expecting somewhere in the ballpark of 40GH/s from 16chips.

Cool so newark sells heatskinks as well. This is useful info. Thanks

Btw did you make the boards through Oshpark? How soon was delivery?

yeah, i went through oshpark. i think my 3 boards were delivered in about 2-2.5 weeks.

Thanks for the reply man. BTW did you solder the chips by hand? If yes, which tool did you use?

[Keefe]

Is the only way to notch your speed up by making a best.cnf file? Also whats unlcear to me is when I make that best cnf file what all should be in it? Example: 1   AIfDSo   53  <-- is that the only line you need for each chip or should it be everything that the .stat.log has minus the very bottom readout?

If the autotuner isn't giving you the results you expect, you can use best.cnf to turn it off (lowercase a) and manually set speeds. You don't need to put all the stuff from .stat.log into best.cnf, but it's not a problem either. It only reads the first 3 tab-separated columns and ignores the rest.

[spiccioli]

Is the only way to notch your speed up by making a best.cnf file? Also whats unlcear to me is when I make that best cnf file what all should be in it? Example: 1   AIfDSo   53  <-- is that the only line you need for each chip or should it be everything that the .stat.log has minus the very bottom readout?

If the autotuner isn't giving you the results you expect, you can use best.cnf to turn it off (lowercase a) and manually set speeds. You don't need to put all the stuff from .stat.log into best.cnf, but it's not a problem either. It only reads the first 3 tab-separated columns and ignores the rest.

Here there is a good way to create a starting best.conf

https://bitcointalk.org/index.php?topic=251966.msg3565601#msg3565601

I've not tested it, but it seem ok just reading it

spiccioli

ps. btw, it's yours

[Doff]

Yeah, I should use that and just change it to turn A on and the speed to grab 53 instead of 52, I may even attempt 54 since my cooling is pretty good. Thanks Spiccioli, and Keefe.

[kaerf]

Aah okay the famous mini-H Actually I have also not seen major benefits with heatsinking h-card except for making the on-board regulator a bit stable. I am still trying to wrap my head around the issue of slower hash-rate at 0.9V. I was expecting somewhere in the ballpark of 40GH/s from 16chips.

Cool so newark sells heatskinks as well. This is useful info. Thanks

Btw did you make the boards through Oshpark? How soon was delivery?

yeah, i went through oshpark. i think my 3 boards were delivered in about 2-2.5 weeks.

Thanks for the reply man. BTW did you solder the chips by hand? If yes, which tool did you use?

There's a pic of the tool I made here: https://bitcointalk.org/index.php?topic=228677.msg3259455#msg3259455
I basically copied http://vpapanik.blogspot.com/2012/11/low-budget-manual-pick-place.html.
Then I used a toaster oven to reflow...out of 3 cards, I only managed to get one to work...one was overheated, the other probably had some bad connections.

[cypherdoc]

anyone hear from Dave about the latest v3 image?

[Asinine]

anyone hear from Dave about the latest v3 image?

...not since he last said he would have it up tomorrow.

Does anyone know what would count as an RMA'able card when the card partially works?

[cypherdoc]

come on Dave!

i need that v3 image!

anyone got a phone # for them?

[shade88]

come on Dave!

i need that v3 image!

anyone got a phone # for them?

Someone with v3 board please image it for him. My upload stream is so slow it would take days to upload it.

[goxed]

come on Dave!

i need that v3 image!

anyone got a phone # for them?

Someone with v3 board please image it for him. My upload stream is so slow it would take days to upload it.

Can v2 image work as a stopgap with v3 boards? Or is there some fundamental change ?

[tacotime]

come on Dave!

i need that v3 image!

anyone got a phone # for them?

Someone with v3 board please image it for him. My upload stream is so slow it would take days to upload it.

am upload now

[tacotime]

Write with imageusb

V3 image file

12HWFAsv1ojTuw5FzoP9T3SnyjZew5hFDL