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1  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][BTC Multipool] The miners multipool >-░▒▓█ Paid 800+ BTC on: August 28, 2016, 09:07:10 PM
I believe I have identified the issue with sha256 miners on this pool.

My sha256 miners have been repeatedly crashing on this pool, obviously I don't want that but I like zpool so I'm hoping I can help fix this if need be Smiley  I've been dev'ing since the 80s so if I can lend a hand in that way, please let me know.

Forgive me for stinking at formatting, if there's something I can do to make what's coming more readable, again please let me know.
                                 "comments shortened"
This happens very consistently on both my Antminers and Spondoolies.

They're all running cgminer4.8.0 so the log output is nearly identical for all of them.

This would account for what some of the posts in this thread are saying about the slowly reducing hashrate reported by the zpool website that results in 0 hash.

What is the problem?

Well I would have to look at the zpool logs to identify the problem as this is expected behavior from cgminer but since that is unlikely I'll take a stab, it's likely:

When the algo switches coins, one or more of the coins is not sending proper (or empty, or headlerless) packets or NULLs to the miners, which the sha256 miners and cgminer read as empty/garbage, leading to the miner eventually dying. The pool software is not switching to a new coin at that point because it is not receiving the expected output from the miners either, leading it to attempt to resend the same packet over and over as the msg the miner is sending is telling the pool that it didn't receive the packet (hence the timeout), leading to an infinite loop or at least a failing one.


My suggestion:

Do a (relatively) quick look at the logs for the sha256 coins and see which ones have not created any blocks on this pool and remove them, or, trim the sha256 coins down to the only ones with a regular hashrate on the site. It's likely one of the non-producing coins that is causing the issue.

If there's anything I can do to help, please let me know- I love using zpool Smiley

Maybe splitting the sha256 coins into two sections would help in this?

First section for the "dinosaurs" I mean "Large" Miners needing large steady difficulty.

The second section that could possibly respond quicker to difficulty changes and lower settings.
2  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][BTC Multipool] The miners multipool >-░▒▓█ Paid 800+ BTC on: August 28, 2016, 06:18:59 PM
The other option is to mine the specific coin, get paid out in the same coin, then take your chance on selling on your chosen exchange, or keep the coin in your own wallet.
3  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][BTC Multipool] The miners multipool >-░▒▓█ Paid 800+ BTC on: August 26, 2016, 02:56:54 PM
I have some s5 miners on this pool
I find they slowly drop hash through the day and need rebooting.
On CK pool they were stable.
Is there any way of stabilising the hash rate? I have tried a few settings for the difficulty but they all slowly drop.

have you tried using the stratum-proxie thing-a-majig that someone mentioned a little while ago?

everything "Java" on this pc (win10) falls flat.
4  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][BTC Multipool] The miners multipool >-░▒▓█ Paid 800+ BTC on: August 26, 2016, 01:27:54 PM
I have some s5 miners on this pool
I find they slowly drop hash through the day and need rebooting.
On CK pool they were stable.
Is there any way of stabilising the hash rate? I have tried a few settings for the difficulty but they all slowly drop.
5  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][BTC Multipool] The miners multipool >-░▒▓█ Paid 760+ BTC on: August 17, 2016, 11:04:55 PM
pool is off line for 4 hours now
6  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: August 16, 2016, 11:21:29 PM
Reckon they'll do like they've done a couple times before and reopen sales in a couple hours once we're all panicking and desperate?

I'd be a lot happier if they sold you some chips
7  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: July 26, 2016, 10:47:22 PM
Im not suffering as much as you guys with regards heat, but its been pretty warm here in the UK last week.

Right. I got two large van radiators off eBay. I got two Ford Transit ones.
I linked the two together with braded hose and sealed up all the connections using jubilee clips.
On the inside one I covered it with a box and left some round connectors on it, to suit flexible ducting that connects to the miners.

The outside one is mounted with a 230V fan to blow ambient air over it.
I then have a pump that pumps water through a copper tube with small holes, to spray water over the coil in front of the fan.
The discharge turns upwards and makes the water drip back down into a tray to re-pump over the coil.

I filled the radiators with water and used a central heating circulator to pump water between the outside and inside coil.
Gives a massive temp drop with the water spraying over the coil.

When the water heats up, dump it and charge the tank with fresh cold water.
In the UK im getting approx 15 Deg tap water.

Currently working on an Arduino with a temp sensor to monitor the water then dump when it gets warm.
Just a solenoid valve to dump with a simple ball cock to fill with cold water again.

Miners suck air from over the indoor coil which cools the incoming air significantly.
The adiabatic cooling to the outdoor coil really works.

Im hoping to build the thing properly in some stainless steel boxes and install it permanantly over the next few weeks.

Just go for a drip feed into the bottom connector (with a header tank and ball cock)(cold end) then let the top connector drip to a drain(hot end).
Total loss cooling is easy and cheap, so long as the water is free.
8  Bitcoin / Hardware / Re: Community Miner Design Discussion on: June 22, 2016, 08:50:50 PM
Every good idea has to start somewhere, these forums are one of those places.
If or when the idea develops, then it can mature into its own space.
The occasional link can keep said ideas in the public eye.
9  Bitcoin / Pools / Re: [40+ PH] SlushPool (slushpool.com); World's First Mining Pool on: May 21, 2016, 01:29:26 PM
and that is why, after 3 years on "slush" I moved to CK on the 2nd of January this year.
The problem MAY be over "but" so is my trust.
10  Bitcoin / Hardware / Re: ANTMINER S3+ Discussion and Support Thread on: May 06, 2016, 11:59:09 AM
I have some S3 parts

I'm up in Cumbria

If you PM me
11  Bitcoin / Hardware / Re: Community Miner Design Discussion on: March 23, 2016, 10:32:49 PM
U R the "Man"
I need to start saving my BTc again.
12  Bitcoin / Hardware / Re: Community Miner Design Discussion on: March 23, 2016, 10:00:43 PM
USB-B cables.................check
S1/S3 chasis..with fans....check
Pi's and mini PC's............check
USB2 hubs.....................check
what else do we need?

Are Luke-Jr  & CK on side for mining software?

And a final

              "COME ON BITFURY"   (chant)
13  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [UNO] Unobtanium Info & Discussion - Update to 0.10 Wallet - Merge Mine w/BTC! on: February 28, 2016, 10:41:15 PM
I know cryptsy is dead and gone but someone has just tried to hack my Amazon account with my cryptsy log on details.  Angry

They were on a long shot but close enough to raise a flag with Amazon security.
14  Bitcoin / Group buys / Re: [RUN 2 NOW OPEN][SIDEHACK STICK]GekkoScience Compac Official sales thread on: February 19, 2016, 09:02:48 PM
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0ahUKEwjbwd-H3ITLAhWBThQKHa1LDnkQFggzMAM&url=http%3A%2F%2Fasicfpga.seecs.nust.edu.pk%2Fdownloads%2FBULK%2520TRANSFER.pdf&usg=AFQjCNFbT35n75ll9uK2LuhZdDxUkGE0_A&sig2=-Awh-oc5RQmAxTszvdsVNA&bvm=bv.114733917,d.ZWU

Data packets are the same for USB2 and USB3
15  Bitcoin / Group buys / Re: [SIDEHACK STICK] Official sales thread for everywhere not already covered on: February 03, 2016, 08:12:13 PM
I'm hoping to have about that many as well. 20 on order, hoping to pick up another 20 if I CKPool finds a few more blocks in the next 2 days.

with 90Ths, you sure have more chance to make enough to buy some :p

90Th why buy any at all Smiley

Why not? Cheesy

the man with Bitcoins can buy with Bitcoins  Grin
16  Bitcoin / Mining software (miners) / Re: BFGMiner 5.4.1: GBT+Stratum, RPC, Mac/Linux/Win64, Antminer S1-S5, Block v4 solo on: January 08, 2016, 03:35:16 PM
Latest version is 5.4.1, have you tried it ?

Sorry but it is the same... the miner failure?

 
Quote
bfgminer version 5.4.1 - Started: [2016-01-08 15:55:21] - [  0 days 00:02:41]
 [M]anage devices [P]ool management Settings [D]isplay options                       [H]elp [Q]uit
 Pools: 2 (0,2)              Diff:87-1k  +  LU:[15:57:25]
 Block: ...ae1dac2d596225fd  Diff:1.8M (12.89T)  Started: [15:57:25]  I:?
 ST:14  F:0  NB:3  AS:0  BW:[ 71/ 18 B/s]  E:172.56  BS:995
 9/11   19.1C | 29.64/28.05/27.84Gh/s | A:14 R:0+0(none) HW:499/ 33%
-----------------------------------------------------------------------------------------------------
 BIF 0: 19.1C |  6.45/ 5.20/ 5.20Gh/s | A: 4 R:0+0(none) HW: 12/5.8%
 BIF 1: 18.4C |  5.73/ 5.31/ 5.31Gh/s | A: 3 R:0+0(none) HW: 18/8.3%
 BPM 0:       |  2.31/ 2.29/ 2.47Gh/s | A: 0 R:0+0(none) HW: 72/ 44%
 BPM 1:       |  2.76/ 2.74/ 2.60Gh/s | A: 0 R:0+0(none) HW: 88/ 47%
 BPM 2:       |  2.61/ 2.59/ 1.94Gh/s | A: 1 R:0+0(none) HW:108/ 60%
 BPM 3:       |  2.16/ 2.14/ 2.23Gh/s | A: 3 R:0+0(none) HW: 68/ 45%
 BPM 4:       |  2.64/ 2.61/ 2.07Gh/s | A: 2 R:0+0(none) HW: 67/ 46%
 BPM 5:       |  2.59/ 2.57/ 3.27Gh/s | A: 0 R:0+0(none) HW: 37/ 23%
 BPM 6:       |  2.67/ 2.65/ 2.65Gh/s | A: 1 R:0+0(none) HW: 29/ 22%
-----------------------------------------------------------------------------------------------------

[2016-01-08 15:57:19] BIF 1: Unknown job id: job 12a 568fce57 0
 [2016-01-08 15:57:19] BIF 1: Unknown job id: job 132 568fce59 1
 [2016-01-08 15:57:21] BIF 0: Unknown job id: job 1ab 568fce58 1
 [2016-01-08 15:57:22] BIF 0: Unknown job id: job 1ac 568fce5a 0

 [2016-01-08 15:57:24] Accepted 02d08dfa BPM 2  pool 2 Diff 90/87
 [2016-01-08 15:57:25] Stratum from pool 2 detected new block
[2016-01-08 15:57:26] BIF 1: Unknown job id: job 150 568fce5d 0
 [2016-01-08 15:57:27] Pool 2 stale share detected, submitting as user requested
 [2016-01-08 15:57:27] Accepted 0041dbb2 BPM 3  pool 2 Diff 995/87
 [2016-01-08 15:57:32] Accepted 01db49d3 BIF 0a pool 2 Diff 137/87
 [2016-01-08 15:57:34] Accepted 02937a72 BPM 4  pool 2 Diff 99/87
[2016-01-08 15:57:55] BIF 1: Unknown job id: job 1af 568fce7c 0
 [2016-01-08 15:57:56] Accepted 00543ece BIF 1b pool 2 Diff 777/87

??

Let it run for a couple of hours.............it will settle down.
17  Bitcoin / Group buys / Re: [CLOSED][SIDEHACK STICK]Official sales thread for everywhere not already covered on: January 01, 2016, 08:09:10 PM


make sure your hub is not USB 3.0 as that causes problems with miners...
[/quote]

USB3 have been ok for me. I just make sure they go through a USB2 hub before connecting to a USB2 port on the host.

Edit:- To clarify the above.
1. Place miner stick in USB3 "powered hub"
2. connect cable into USB2 "un-powered hub"
3. connect this usb to your USB2 port on PC
4. With a PI "Forget the above" and look for a USB2 "Powered Hub"
18  Bitcoin / Hardware / Re: GekkoScience BM1384 Project Development Discussion on: December 27, 2015, 07:04:58 PM
Yes, you can see in the first picture the temp sensor is the little square guy in the center of the ring of ASICs.

I've also thought about doing a plate of aluminum across the back. The bottom layer has a few signal traces in it for the temp sensor, but otherwise is for the most part absolute ground plane - which means chips aren't belly-pad-sinked into it directly like on the S5, except on the bottommost node. This thing is designed for top cooling. I can change that layer around if necessary to give it a bit more heat flow into the rear face of the board without a lot of trouble, but then you have to make sure your heatsink is electrically isolated which tends to increase thermal resistance. That's a big reason most string boards are top-coolers - having 15 different voltage-potential planes all rubbing up against the same block of aluminum can get fairly risky.

If I retool for a different chip whose dimensions are any larger than the BM1384, I'll probably have to either go with fewer chips or give up on the CPU cooler. It was darn difficult to fit 8x 8x8mm ASICs in a 30x30mm space with room for routing. Any bigger would be impossible. But I could just build for a basic heatsink, maybe 80mm square with a case fan mounted, and make the chip field any size I wanted to fit underneath it. Of course I'd keep the same size and screw positions on future boards which could mount up to the same heatsink.

I see your point about a back plane cooling, if its not all a common ground plane, then:- "magic smoke"
Some plastic standoffs and a secondary "case fan" will be  a safer base plate.
19  Bitcoin / Hardware / Re: GekkoScience BM1384 Project Development Discussion on: December 27, 2015, 11:23:47 AM
since Bitcoin is a Proof of Work coin, here's some proof of work.





Here you can see the new thing with 8 chips. I haven't debugged the buck yet so it's still running off the hacked '53 but that's okay. Shouldn't take long to work it out. Comm lines are run straight into my hacked S5 controller. I'm not sure what's up with this guy, if it's comm noise or what, but it doesn't get full speed. Ran overnight at 150MHz (should have seen 66GH) but only regsitered 52GH or so. Now it's set at 300MHz and I should see 132GH (or at the 80% metric set by the previous test, 106GH) but I'm only seeing about 87GH. It broke 100GH earlier but I think it's getting tired. Not sure what's up. But it's running. I have found one error on the board, I forgot to level-shift the chip reset coming out of the microcontroller, but it's hashing which tells me all the worrisome and complex parts are pretty much right. My level shifters are all good. Still need to test dividing PLL LDO voltage but I'll worry about that after the local buck is working.

Merry Christmas, chumps.

Is the board flat on the back?
I'm thinking of a single block aluminium heatsink on the back, then the top cooler will just screw to it through the mounting holes.
20  Bitcoin / Hardware / Re: GekkoScience BM1384 Project Development Discussion on: November 21, 2015, 03:31:01 PM
Nothing's actually spec'd for chip height, but the chip area is based on the Freezer7's footprint. I have standard 115x mounting holes and I have holes to mount the Freezer7 directly without requiring its plastic bracket. Any standard Intel cooler will probably have to be modified for height, which probably just means cutting some plastic or yanking out those clips and using screws.

Buying the cooler has always been only an option. "you can even leave the cooler off so people can use their own" is the default.

Thanks for the update.
When will you need to start collecting our sick S5's?
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