This company is sketchy,...
+1 Stay away from this Riccardo guy. My order was placed a month ago, I've been emailing him since then. Tried to cancel my "pre-fabrication" order, no response. After my order was moved to "fabrication" status, he got back to me saying that they will ship it in 8-9 business days. Well, I waited, no response for 10 days, then I opened a PayPal claim as he did not ship the product as per terms of sale. He updated my Paypal claim two days later saying that the product was shipped. This guy does not have any product in stock, he waits until he gets enough orders then he orders the aluminum and probably makes them in his garage. Stay away from this company. Order updates? Forget about it. It is not Amazon. Save yourself some money and buy raw materials at home depot or other local welding supply store. This "company" is a joke. He charged me $100 for shipping and says the shipping might take up to 6 weeks? Is he delivering them by boat? |
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Can anyone help?
I cannot get my R9 290 cards stable at all.
- I have tried running 1 card, 2 cards, 4 cards and 5 cards. All configurations the same.
- I have tried on different motherboards (all GA-Z77) and using different PCIE slots.
- I have tried different cards and updated BIOS on the cards and the mobo.
- I am using powered 1x risers and have tried different risers in different slots. I have also tried unpowered 16x risers.
- I am using Powercool X-Viper 950W PSU to power mobo plus 2 cards. When I run more cards I have a second 950W PSU powering too. I have the same PSUs powering 5 card 6950 and 6970 rigs without fault.
I run them at I 18, TC 21000 and standard 947/1250 clocks. The computer crashes within 10 minutes of starting CGminer.
If I run them at TC 8192 I can only go up to I 13 without HW errors but only get 500 KH. As soon as I increase the intensity I need to increase the TC to stop the HW errors. If I have the TC over 8192 I get the crashes.
If I reduce the clocks to 900 / 1200 I can reduce the crashes to approx 1 per hour or so. Hash rate approx 750 KH.
If I reduce the clocks to 890 / 1190 I can reduce the crashes to approx 1 ever few hours. Hash rate approx 724 KH.
So do I have a bad batch of cards? Hard to imagine all 10 cards are bad....but it seems so.
Is the motherboard causing issues? Can the motherboard affect how fast the GPU can be clocked?
Everything I have read seems to sound like it should be easy to run at 947/1250 and most people can run at 1000/1500 without problem. I haven't found anything yet after lots of searching that indicates anyone else has the same problem.
I have the Sapphire R9 290 cards btw.
disable ADL in cgminer or use reaper. cgminer fan/clocks control is broken. Use one thread, run TC at bus width*64 |
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I got black screens before mining. This was after the desktop loaded up and before mining, sometimes it dies immediately other times it does not, seems random. I tried it with one card and the same thing happens, also before mining so I dont see how I am crashing the system due to ADL issues.
I boot up the system and leave it running with no processes open and the display dies.
I am not using the auto fan on these R9 series, seems like they have enough issues with fan control and heat already, i was using afterburner to control the fan speed, locked it at 75%, No OC's, fan only.
I got mining for around 60 minutes max on these cards, I have stripped the rig down to one card and it still happens, the display dies at random times, not mining, mining, one card two card three cards four cards, its the same issue, I've swapped out the other main components and I have it down to either driver issues or an acutal hardware fault on this batch of c ards I received. Either way its too much hardware to sit in the corner useless
Format the drive, do a clean install. Activate Windows, disable Windows Update, Firewall, disable unused peripherals in BIOS, install only USB and network drivers. Under power management, configure it so that Windows does not put any h/w to sleep. Disable any "green" features in the BIOS or MOBO utilities. Actually it is best not to install any MOBO utilities, just the driver for network and usb. If you don't get blank screens with Standard VGA, continue to install 13.12 AMD driver, install just the "Display driver", uncheck everything else. |
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Wouldn't 1500W be enough for 4 R9 290's? I used to run a full system with fans, 2 hdd's, 4x 7970s on an Enermax 1350W.
Also, I made powered risers. They work, but it's the same thing. I can't get 4 cards at once to work.
My board does not require shorting the a/b pins. The 1x riser works.
I run three R9 290x with 1200W PSU and I put the 4th card on 450W second PSU. All four are on powered risers. I'm using the same motherboard, default BIOS settings, Sempron 145 CPU, SSD drive. |
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Anyone get around the R9 290 random black screens?
MSI Z77A-G45 - G1610 - Corsai 860i x2 + add2psu - 5 x MSI R9 290 cards (using powered risers) - Win7 x64 - 8GB RAM - Latest AMD 9.5 beta video drivers (the ones that supposedly stop the black screen).
Does BAMT support these cards and would a change from win7 to a linux based OS fix the random black screens? These are happening at random times like sometimes after I boot into windwos everything is fine for an hour or two, other times its a minute or two, I have gotten mining and my settings are tuned nicely I believe but these random black screens lock the entire system up. I can't even teamview into the box after it happens.
Don't use ADL. Compile cgminer with "--disable-adl". If you cannot (or don't know how), at least add "gpu-fan" : "25-50" and remove "auto-fan" : true cgminer crashes AMD ADL drivers when running with more than two cards. Once kernel mode code crashes the OS is done. Only power cycle works. Changing driver versions, SDKs, motherboards, CPUs, only changes timing. Sooner rather than later you'll crash your system with 5 cards. PS. One trick is to RDC to your system and start cgminer from there. ADL does not work in RDC, so cgminer will not crash ADL drivers if you start it from there. |
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I for one did not have too many issues with their minis. Still running since August. I took the boards out of the cases for better cooling.
I wish they delivered just the boards not this fancy case.
One issue I had was with the bfgminer not recognizing all USB devices after power failure, but it works better with the latest version.
That is fortunate. There are significant amounts of people, as documented in this thread, who have had less than satisfactory experiences with BFL products. Here is hoping that the lessons learned here help consumers make better choices in 2014. I had bitfury boards, sold them in a hurry. Big fire hazard. Not very well engineered board. BFLs seems to be designed much better. More stable. Knock on wood. Most people are just angry with BFL because of the "2 more weeks" type of delays that exended into months and in some cases into years. But if you look at the products themselves, it is not all bad. Pretty good actually. |
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https://alpha-t.net/news/development-update-23122013/Announcements Today is the release of our full pricing, shipping, terms and all the helpful information you would need to secure a pre-order, this can all be found in the 'Terms of Order' page. We will be taking a 30% deposit payment, and remainder 70% to be paid 8-10 weeks before shipment. Minimum chip specifications have been confirmed from our ASIC manufacturer using Global Foundries as our foundry. In regards to our devices, we have confirmed a lower power consumption than quoted previously and also a guarantee of minimum hash rate. this can all be found in the individual Product pages. Please read the Terms of Order page, and individual Products pages carefully. To summarise some other things: Viper-5mh/s which can hash at minimum 5 MH/s: £1350 (inc VAT) Deposit- £405 (inc VAT) Viper-25mh/s which can hash at minimum 25 MH/s: £5450 (inc VAT) Deposit- £1635 (inc VAT) ASIC Chip Specs Process: 28nm/40nm HPP, 3.3v/1.8v Internal Memory: >=128Mb SRAM Gates: ~28M Gates Clock Speed: > 600 Mhz Core Clock Hashing Cores: >= 128 Chip Hash rate: > 350 Kh/s Power Consumption: < 5w Registration and Wishlist Registration will be open on the 25th or 26th of December. We urge all customers to be prepared by providing shipping and billing information in the My Account section. Also showing interest by adding their desired products to the Wishlist, with stated quantity. You can register here on the specified day: https://alpha-t.net/login-register/New Office We have moved to a bigger office in Manchester. Some more interior work is still to be done, but here is an image from the outside. Details of our office can be found in the About Us page. office Launch and Next Updates We expect to officially launch in a weeks time. We will be first rolling out some images of our devices and various other product updates. Alpha Technology team Why give them money now? Just setup 5 motherboards with 6 R9 290x in each. NOW!!! Each board can mine at 900 kh/s. So 5 rigs can do 27 MH/s. When they start shipping ASICs, sell your GPUs to gamers. |
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I for one did not have too many issues with their minis. Still running since August. I took the boards out of the cases for better cooling.
I wish they delivered just the boards not this fancy case.
One issue I had was with the bfgminer not recognizing all USB devices after power failure, but it works better with the latest version.
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I'm not sure you want to fix this, or if you want to support this. I suspect it is not just PPC issue, all alts pools will have the same issue.
You can't run different blockchains at the same time. BFG loads whatever coin's chain on startup, and won't change it, so you can't flip between BTC and whatever other SHA junkcoin Just wanted to put some official acknowledgement that HellDiverUK's response here is correct (mainly because I get asked it often). This is clearly stated in the README since forever. *gminer has never worked with multiple blockchains in the same instance. Maybe some day I'll get around to rewriting enough code to make it work, but it's not really a priority. If someone else wants to try to do this, I'll consider merging the code - but it's definitely far from simple! Are you sure? I kinda works for me with PPC and BTC chains. When I let PPC pool work for 15 minutes and then switch to eligius, eligius works ok. After that I can switch back and fort between BTC and PPC pools. The problem is the initial selection of the blockchain. It seems the miner does not select the correct one for the first pool. Which is understandable since it does not know the type of pool. New pool "type" property? Try it for yourself. I looks like a bug to me. |
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bfgminer has failed to solve a single block while cpuminer has found 20 so far.
What can be wrong? Thanks!
You've solved 20 blocks with a CPU? I don't think so. If you had, you're either posting from 2008 and got 1000BTC for nothing, or you're the luckiest person alive, or you're reading the screens wrong. I suspect what you're seeing is "New block detected" on the network, which bfgminer doesn't report (because it's pointless information). Maybe he is working on some early forked chain or something (doing solo). I'm not sure if we've had forks early on. |
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Right so there is a simple answer to this problem. This is what I use, I don't need to monitor it or anything, it is totally automatic. 1st. Have "CGwatcher" set to run on startup then run cgminer. 2nd. Set CGwatcher to restart sick or dead GPU's, plus restart if hashrate falls below X. 3rd. Install USB Watchdog Card on Rig. - http://www.berkprod.com/Product_Web_Pages/usb_v1_pc_watchdog.aspx4th. Plugin USB watchdog to rig( USB connection). 5th. Run USB watchdog "tickler" software, set it to monitor cgminer.exe every 2 seconds. 6th. Test operation of rig before connecting the Watchdog card's reset pins to the motherboard, Have cgminer running, then quit it, watchdog card will beep relay click and the motherboard will be reset. Computer will restart upon the reset, CGwatcher will start up and start cgminer. If for any reason cgminer fails, the motherboard gets reset. If a gpu dies or goes sick and cgwatcher tries a cgminer restart and the computer/cgminer hangs, crashes or freezes, the motherboard will get reset and the rig will reboot.. Plain and simple anything crashing cgminer or stopping cgminer and the motherboard is reset. Each rig monitors it's self, only input from you is checking hashrate now and again to makesure all gpu's are healthy and not on their way out. Simple and effective. One more time. This watchdog card will not work on h/w hung systems. Reset of the motherboard does not work in those situations. Only a power cycle does. cgwatcher will not detect AMD driver crashes on Windows. My akbash watchdog does. Only external controller works. Another cheaper solution is to use rpi and control 16A/20A/30A relay via GPIO. You can get these relay boards (optocoupler+relay) on ebay for <$10 and hook them up to your rpi. One GPIO port for each relay. GPIO drive the optocoupler (3-5mA) directly. You can control 8 or more computers from one rpi. Or pick this one: http://www.opto22.com/site/pr_details.aspx?cid=3&item=120D25it will draw ~2.3mA from the GPIO, optocoupler, solid state. Reliable for life. Can be reused for other home automation projects. |
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Luke,
There might be a bug in the way bfgminer is handling BTC and PPC pools.
When I have few BTC pools configured and one backup PPC pool, bfgminer reports PPC diff, PPC network hashing power.
And then BTC pools cannot solve any work. For example if I have the following pools in "failover" mode:
eligius
ghash
d7pool
btcguild
none of of BTC pools can start hashing, I don't see any work done. But when I switch to d7, bfgminer reports accepted shares right away.
When I remove PPC pool from the configuration and restart, BTC pools solve shares and I see shares are being accepted.
I think it might be something related with diff (target).
I'm not sure you want to fix this, or if you want to support this. I suspect it is not just PPC issue, all alts pools will have the same issue.
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fluffypony,
How long does it take for an order to go from "pre-fabrication" to shipped?
any idea? |
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One 7950 GPU will get you between 500 and 550 khash/sec in scrypt, maybe 600 with extra tweaking and proper cooling.
Not quite true. You can get 610+ out of most brands. Some (gigabytes) can be pushed to 680 kh/s. I'm running mine in the 620-660 ranges. If you're buying new cards, I'd go with R9 290x. I heard you can get >1000 kh/s out of them. Never tried, but maybe you can squeeze 1100-1200 out of them. They are about $600 now, will get cheaper over time... |
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fluffypony,
How long does it take for an order to go from "pre-fabrication" to shipped?
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OK yesterday(today) I was up till 4:00am... One board do work the rest don't... No idea why... MrTeal also didn't give me the answer...
Today we redid x-ray of the boards and compeer it visually... It is the same... We also made some boards with the ather board just to be sure that the board is not to blame... They act the same way...
Board that is working has only about 60% of engines working. So it runs at about 23-24GH(not sure if that is related). Others have almost all working and they run for some time then they crash... It looks like it always happens at same chips voltage... Some crash complicity others start producing HW errors and chip voltage go to 0V...
Will need MrTeal to figure out... It would make sense if none would be working but this is not the case... All were made from same batch of components the same way and only difference we can find is number of working engines on chips...
Lucko, Chips are from the same batch as Coindo 16 chips board? |
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If they plan to ship in Q1/14, they already paid R&D costs. So basically they don't need to go the pre-order route. They can just sell the units as in-stock items in Q1. Unless of course they want to take your coins and disappear. Just think about it. They "started" the company in 2012, developed bitcoin ASIC and registered their domain in Dec, 2013? Why only 800 units? Who runs 2400 ASIC chips run? I would imagine the runs would be in multiples of 10K... |
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Hi folks, I just put up 1000 of each: Old Style and New Style H-cards. Expand your starter kits! Also, I'm happy to announce that I've got credit card processing back running again! Best Regards, Dave www.megabigpower.comMight sell few...:-) |
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