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Yeah it gets pretty complex with all the choices available. The part number for PCIe connector I use is 45559-0002, you can see it on the Heilind link https://estore.heilind.com/45559-0002/MOL45559-0002.htmlIf you scroll way down that page there are the female pin terminals that go inside of it. They have many options as well, such as gold plating, etc. The cheapest option there looks like part # 39-00-0077 which is tin over copper plated brass. https://estore.heilind.com/39-00-0077/MOL39-00-0077.htmlEdit: After rereading your post, maybe you are asking what part plugs into the PSU itself? That tends to be proprietary by manufacturer of the PSU. Most of the people that I've seen making their own cables use server PSUs and choose their terminals based on what fits the blades or they direct solder. |
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Any tips on the wire choices? I've been buying 16 AWG PVC coated off amazon, but I notice they have 500ft THHN for ~$22. That's about a third of what I've been paying, but it does have a thinner jacket. |
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I still hand crimp, but an automated cutting/stripping machine was a lifesaver. Something like $900 on ebay. Cuts more wire in 10 minutes than I could in 10 days, and now all my wires are the same length!
Make sure you swap out the feed cone to the right size if you're using 16 awg. Mine kept jamming when I first got it and it turned out the cone was too small.
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I've got 40 I was going to start listing on ebay soon. $300 each + shipping.
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The first one I tried it on was having BC_write_timeout errors. I looked at the data cable while unplugging it and one of the wires seemed loose. I will swap cables later today and try more testing. This is looking promising though.
I'll kick over a tip for every board I'm able to resurrect RadekG, thanks for giving me hope.
Anyone know a source for the data cables? They seem awfully flimsy.
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I'm at about a 25% failure rate on my R4's and 5-10% on S9's so far. The S9's have been far more heat tolerant, but they also require a bit of babysitting as boards will go down while still reporting full speed in the interface.
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This is an interesting log so far. I wonder wtf is going on here... Chain[J7] has 82 asic
retry Chain[J7] has 0 asic
retry Chain[J7] has 167 asic
retry Chain[J7] has 99 asic
retry Chain[J7] has 149 asic
retry Chain[J7] has 0 asic
retry Chain[J7] has 63 asic
...
OK: Chain[J7] is for this machine! [minerMAC: 08:85:07:d1:xx:xx]
are they doing board level mac addr checks? |
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That's strange. I use kano (CKPool) as well and my worker shift graphs on the site show similar variance among all equipment I've looked at. If the software you're using is pulling the speed direct from the miner, that might explain it. The reported speeds in the antminer interface can vary quite a bit from actual pool-side speeds.
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Yep, right spot. Yours is dated Nov 25, 2016 Just as with my 1st batch-6 (with bad board after 22hrs so is 1/2 speed, Dec 2 firmware), this latest batch-6 has eerily smooth hashrate compared to the s9's. ref:  I wonder if it has to do with this bit of code the log spits out and the miner is per-chip tweaking to give advertised spec? miner total rate=8898GH/s fixed rate=8700GH/s My R4 Batch-4 in my main farm at work is just as rugged looking as those s9's are. Hmm... That graph looks more like the R4's are being logged on low difficulty shares and the S9's logging higher diff shares showing more variance. My R4's show similar spikes as my S7's & S9's. |
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I am a bit confused as to your fix.
You ran single board #1 through warmup, then ran single board #2 through warmup, then ran both together?
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Running about 25% board failure rate for me. We'll see how this new batch does.
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and losing about 80 to fedex because they wrote aluminum not computer on the invoices. Oddly enough same happened to me with the 1st R4 I got from Bitmain wheny they were briefly only DHL or FedEx: On shipper it lists 'Aluminum' and FedEx dinged me for $35 because of it. My 2nd R4 ordred last week had UPS back as option. Used it, got miner yesterday with no extra charges... Yay FedEx... UPS likes to send random bills for ~$25 a piece weeks later. With Fedex, just call them up and tell them it's a computer and they remove the customs tariff. According to the last Fedex guy I talked to, Bitmain is using a customs code that doesn't match anything in the database. |
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Latest update of the miner all time stats (since May 2016) CDF[Erl] | Miner | DiffAcc
0.997872 | S9v1 | 27,650.93G | 112.59655135 BDR | 84 Blocks
0.798780 | A7v2 | 513.85G | 1.60335652 BDR | 1 Block
0.531652 | A7v1 | 2,851.43G | 9.91705950 BDR | 10 Blocks
0.167142 | S9v2 | 5,683.25G | 19.28094844 BDR | 24 Blocks
All OK as usual ... except S9v1  Not a single block from any of the new R4's? Wonder how many R4's are in live the pool? Mine has been hashing away for almost a month now. Hope it finds a block for us soon. Thanks for the update. My last block was found by an R4 |
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just edited the list to move dps-2000bb from working , to working but unreliable
, i have gone threw aot of dps-2000bb in my dc on 277v power i only get about 1-2 months out of them so i dont suggest using them with 277v
i have ibm 2880's that are 2 years old still going strong on 277
Do you have any reliability data on the Dell Z750P's on 277v? |
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Would you prefer miners with a certain number of workers aggregate them behind a proxy?
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Phil, check what fedex has it labeled as. Mine was labeled scrap iron/steel. A quick call to them to let them know it was computer hardware and they zeroed the bill.
thanks I saw the word aluminum let me check. it reads bitcoin miner model:s9 the material aluminum electronic components etc use for get bitcoin by operate the other one reads bitcoin miner model :r4 the material aluminum cn maybe I can get some relief. @ longsnowsm there simply won't be a new piece of gear from them. they are head and shoulders above any other company take a look at hashnest they sell cloud s7's that still earn a good profit never mind the s9's they sell they have zero need for an s10 or an s11 at the moment. Check box #30... mine says "ARTICLES OF IRON/STEEL" with a charge of $43.18 per S9. Some fedex employee probably saw aluminum & miner in the description and assumed it was raw earth mining materials. Edit: and if anyone from Bitmain reads this, just put "Computer Hardware" or "Computer Peripheral" as the description when shipping via Fedex to the USA. |
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Phil, check what fedex has it labeled as. Mine was labeled scrap iron/steel. A quick call to them to let them know it was computer hardware and they zeroed the bill.
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With the addition of the wireless from the raspi all you would need is a power lead coming out of it for the psu. (yes I know a wired connection is better but if its close enough to a router then why not lol).
I have heard that wifi on the RPi3 is merely adequate due to the onboard antenna. Putting the RPi3 inside a grounded metal case would make it worse. Now, if you modded the RPi3 with an external antenna... |
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Block by agentcash !
Good job agentcash with your 4th Kano block! (an S9?) This is our 1st of the new day!  S9v2 Yep the S9v1 sux something terrible - the stats are still getting worse. ANYONE using the v1 firmware - PLEASE update to v2. It's got to conspiracy theory levels how bad the luck is with S9v1 firmware. The last luck report I ran: S9v1: Block found: 79 Expected: 105.15 CDF[Erl]: 0.996590 Yeah that's basically saying that it's averaging 75% luck for 79 blocks ... that's like really BAD luck ... or BAD code. Whew, felt like I was long overdue for one. Thanks guys. Best Share on that miner: 480,759,511,561 I'll work on upgrading any v1's later today. |
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