Happy New Years! Seventh alt coin thread!

[vapourminer]

I am currently using this to bridge the gap between two psus:

https://www.parallelminer.com/product/dual-psu-adapter-board-to-connect-multiple-atx-power-supplies-via-24-pin-atx/

i use this as well. works great. search for "add2psu" there are several variants but all work the same. uses a relay powered by the master psu to switch on the slave psu.

just beware i hear there are cheap knockoffs.

[philipma1957]

It is just that I had a lot of offers from sleazy  ICO for signatures.
Many pump and dump offers  have been sent to me. I don't take them.

I don't think it is wise to sell your signature to an ICO company.

I am not  saying you broke rules  just trying to offer a word of caution.

with some icos being classed as securities by the sec i wonder if people promoting them in sigs could get into trouble.

no real clue about the legalities of it all but its probably something to consider.

yeah  I fear this problem  and do not list any ICO

[cryptoinvestor_x]

Has anyone had any luck with the various server PSUs on ebay?

https://www.ebay.ca/itm/2400W-10GPU-Mining-Power-Supply-For-Eth-Rig-Ethereum-BTC-Miner-Dedicated-90-PLUS/352236174282?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D986116ef2daf49a8935ce44d07305446%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dag%26sd%3D263420036873&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Ad3593131-f315-11e7-b1b1-74dbd1802c4f%257Cparentrq%253Acce55ef91600ab66f206ed05ffec64f5%257Ciid%253A1

It looks like its just housing two HP Server PSUs, my only issue would be with the reliability of the wires as opposed to a breakout board option.

With Parallel miner having no stock I was hoping someone else had some ideas on server PSUs, in Canada a lot of the ATX PSU deals are pricey after shipping

[philipma1957]

Has anyone had any luck with the various server PSUs on ebay?

https://www.ebay.ca/itm/2400W-10GPU-Mining-Power-Supply-For-Eth-Rig-Ethereum-BTC-Miner-Dedicated-90-PLUS/352236174282?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D986116ef2daf49a8935ce44d07305446%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dag%26sd%3D263420036873&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Ad3593131-f315-11e7-b1b1-74dbd1802c4f%257Cparentrq%253Acce55ef91600ab66f206ed05ffec64f5%257Ciid%253A1

It looks like its just housing two HP Server PSUs, my only issue would be with the reliability of the wires as opposed to a breakout board option.

With Parallel miner having no stock I was hoping someone else had some ideas on server PSUs, in Canada a lot of the ATX PSU deals are pricey after shipping

dont know looks interesting

[ATCkit]

One of my friends is getting his hands on a 19-slot mobo... Funny thing is he has no idea how to set up the damn thing.

What's the latest on Windows' support for more than 8 GPUs of the same brand? Would I have to set him up a Linux distro if he wanted to run 19 GPUs on that mobo? Or is 16 doable under Win10? I wasn't recommending that mobo to him due to the major point of failure risk... but hey ho he went for it. Now I can see myself setting it up for him...

That board needs 6 x P106 Mining card, as pre-req to work.

See full rig setup by BBT here  - https://www.youtube.com/watch?v=miUoqnUqk9M

He did it with Win10 - 19 x GPUs

Does it NEED those P106's though? Can it run 16 cards (8 nvidia and 8 AMD)?

If I remember correctly BBT started with p106's and started adding normal GPU's to max it out instead of the other way around.  I would check the latest BIOS/chipset drivers for updates on compatibilty, but 8 normal Nvidia and 8 amd should work fine, or start with 13 AMD and add Nvidia one at a time.  The worst part of that board is the crazy loading times and then trying to load OC values after that.  Seems more feasible to stick with 8-13 GPU motherboards.

I agree, and that's what I told him. Easier to manage 2-3 smaller mobos than this juggernaught which will probably end up being a massive pain in the ass.

Everyone's jumping onto the mining bandwagon nowadays. Got colleagues at work flocking to me as they hear I'm into crypto. Helped one of them ordering parts. My plumber/electrician has setup a rig and I was walking him through how to get his mined coins out of Suprnova into his Coinomi wallet!

I have 7 of these 12/13 GPU rigs in the farm and .... yes it is fun building these rigs but you need plenty of power for them and well ventilated. All of them are with the Deltas 2400w and housed in the center of the farm so that I can use the air extractor on them during the hot days. These rigs are the hottest in terms of temps and hash power. Ironically these rigs are the only ones that are hanging like bats and since they are stable, they will likely remain with risers. Multiple 8 x GPU riserless rigs are ideal for density and can fully populate open cage metal racks and make use the of floor fans effectively. I dont forsee doing anymore AMD rigs (exception of the Vega rigs) because the NVIDIAs are a blessing - always works, easy to control voltage and very stable in most cases.

So lessons learnt - the bigger the rigs, the bigger the issues in PSU requirements, cooling strategy, cabling, stabilizing them.... a golden rule : stability, cool temps and consistent submission of shares to the pool's stratum server are more important than achieving the meanest powerful, fastest rigs that requires constant babysitting. If you have a large farm -- undervolting is very very key - forget the world GPU speed record.

Excellent summary. My biggest rigs have 7 and 8 GPUs. They are stable now - but were more hassle than my 6 GPU rigs.

The 8 GPU rig is on a Biostar MoBo and can be increased to 12 GPUs fairly easily. However, I just don't feel comfortable with more risers.

I really like the idea of the riserless 8 GPU Mobos. I had no luck on my first attempt with the ONDA board... but will get the courage to try again.

 I think in the future, I may have to send GPU rigs to a host site with cheaper electricity than I pay...ie: in order to be able to make a profit. That means I will need a riser less rig in a decent case with good stability, cooling etc.

From what I've read, I'm still not comfortable with the idea of buying from Pandaminer and their competitors and then sending them to a host site in Labrador. Perhaps someone (AT Miner?) will come up with a good rig in an enclosed case yet? In the meantime, I'll enjoy trying to develop my own.


EDIT: I meant  Autominer -not AT Miner. Looking forward to Phil's review!

[dlezama]

I am currently using this to bridge the gap between two psus:

https://www.parallelminer.com/product/dual-psu-adapter-board-to-connect-multiple-atx-power-supplies-via-24-pin-atx/

i use this as well. works great. search for "add2psu" there are several variants but all work the same. uses a relay powered by the master psu to switch on the slave psu.

just beware i hear there are cheap knockoffs.

I moved to this style instead:
https://www.amazon.com/gp/product/B074DQJY8K/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

There is a version for 3 PSUs I'm not finding now that it's IMHO much better than using 2 Add2PSU

[VyprBTC]

If I do a signature again  it would be for smos  btw he is in my signature  for free $0 no payment.

Thanks Phil, you just reminded me to post in his thread, I've only been asking for Alexis ccminer for 6 months now. OS is good decent an all, but really REALLY shitty slow support.

Pulling 68 Mh/s on an smos rig, and 85 Mh/s on windows using the proper miner.

[QuintLeo]

btw, this Intel chip flaw thing.... now that changes everything .... will mining rigs be impacted?

https://www.bloomberg.com/news/videos/2018-01-05/apple-says-chip-flaw-hits-all-macs-iphones-ipads-video

 Not to any real degree IF at all - it's an issue about "protecting code / data from other code running on the same machine in a different userspace.

[QuintLeo]

Does it NEED those P106's though? Can it run 16 cards (8 nvidia and 8 AMD)?

If I remember correctly BBT started with p106's and started adding normal GPU's to max it out instead of the other way around.  I would check the latest BIOS/chipset drivers for updates on compatibilty, but 8 normal Nvidia and 8 amd should work fine, or start with 13 AMD and add Nvidia one at a time.  The worst part of that board is the crazy loading times and then trying to load OC values after that.  Seems more feasible to stick with 8-13 GPU motherboards.

 Manual specifies 13 "normal" cards max.

 I'm still trying to figure out WHY that limitation exists, there is no LOGICAL reason for it.

[QuintLeo]

I have 7 of these 12/13 GPU rigs in the farm and .... yes it is fun building these rigs but you need plenty of power for them and well ventilated. All of them are with the Deltas 2400w and housed in the center of the farm so that I can use the air extractor on them during the hot days. These rigs are the hottest in terms of temps and hash power. Ironically these rigs are the only ones that are hanging like bats and since they are stable, they will likely remain with risers. Multiple 8 x GPU riserless rigs are ideal for density and can fully populate open cage metal racks and make use the of floor fans effectively. I dont forsee doing anymore AMD rigs (exception of the Vega rigs) because the NVIDIAs are a blessing - always works, easy to control voltage and very stable in most cases.

So lessons learnt - the bigger the rigs, the bigger the issues in PSU requirements, cooling strategy, cabling, stabilizing them.... a golden rule : stability, cool temps and consistent submission of shares to the pool's stratum server are more important than achieving the meanest powerful, fastest rigs that requires constant babysitting. If you have a large farm -- undervolting is very very key - forget the world GPU speed record.

 That's one of the reasons I'm sticking with my 5-card rigs - relative ease of assembly/management/troubleshooting.

 The primary reason of course is "I already HAVE a bunch of MB/CPU/RAM/HD" so the cost is already sunk on the infrastructure, and it's going to be a WHILE before I have to worry about buying more infrastructure stuff.

[dlezama]

Does it NEED those P106's though? Can it run 16 cards (8 nvidia and 8 AMD)?

If I remember correctly BBT started with p106's and started adding normal GPU's to max it out instead of the other way around.  I would check the latest BIOS/chipset drivers for updates on compatibilty, but 8 normal Nvidia and 8 amd should work fine, or start with 13 AMD and add Nvidia one at a time.  The worst part of that board is the crazy loading times and then trying to load OC values after that.  Seems more feasible to stick with 8-13 GPU motherboards.

 Manual specifies 13 "normal" cards max.

 I'm still trying to figure out WHY that limitation exists, there is no LOGICAL reason for it.

As mining cards have no video outputs, I think there may be some system limitations that don't apply to them. That's the only thing I can think of that makes some sort of sense.

[crushed]

If I do a signature again  it would be for smos  btw he is in my signature  for free $0 no payment.

Thanks Phil, you just reminded me to post in his thread, I've only been asking for Alexis ccminer for 6 months now. OS is good decent an all, but really REALLY shitty slow support.

Pulling 68 Mh/s on an smos rig, and 85 Mh/s on windows using the proper miner.

You know you can add your own miners to SMOS, right? I think GravityMaster's FAQ even addresses Alexis miner directly with step by step instructions IIRC. I mean, I get it (and don't disagree about the slowness), you're paying for something and would like to see some service but considering what SMOS costs, you can either expect to have to do some things yourself or wait.

[vapourminer]

I am currently using this to bridge the gap between two psus:

https://www.parallelminer.com/product/dual-psu-adapter-board-to-connect-multiple-atx-power-supplies-via-24-pin-atx/

i use this as well. works great. search for "add2psu" there are several variants but all work the same. uses a relay powered by the master psu to switch on the slave psu.

just beware i hear there are cheap knockoffs.

I moved to this style instead:
https://www.amazon.com/gp/product/B074DQJY8K/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

There is a version for 3 PSUs I'm not finding now that it's IMHO much better than using 2 Add2PSU

i dislike the fact there are 2 more sets of contacts for the atx 24 pin power for the mobo to go through. the less connectors the better (voltage drop/resistance/heat). probably insignificant so not really an issue (hopefully) but less connections = less failure points. the add2psu has none of those drawbacks. but hey if it works..

i do remember seeing a bunch of those back in the day of gpu btc mining, around when ribbon style pci extenders were all the rage.

BTW you can daisy chain add2psus to add more than one psu as well. i think i read about some guy daisy chaining like 6 psus with add2psus for some monster rig.

[R0mi]

Has anyone had any luck with the various server PSUs on ebay?

https://www.ebay.ca/itm/2400W-10GPU-Mining-Power-Supply-For-Eth-Rig-Ethereum-BTC-Miner-Dedicated-90-PLUS/352236174282?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D986116ef2daf49a8935ce44d07305446%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dag%26sd%3D263420036873&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Ad3593131-f315-11e7-b1b1-74dbd1802c4f%257Cparentrq%253Acce55ef91600ab66f206ed05ffec64f5%257Ciid%253A1

It looks like its just housing two HP Server PSUs, my only issue would be with the reliability of the wires as opposed to a breakout board option.

With Parallel miner having no stock I was hoping someone else had some ideas on server PSUs, in Canada a lot of the ATX PSU deals are pricey after shipping

The server PSUs that I like are the HP 1,500w common slot PSU (yellow label on top, takes 220v) and the DPS-2000BB (220v).  I use them with breakout boards, not wires.  You can strap or screw in a heatsink on the HP 1500w units and that will help keep them cool and the fan noise to a minimum.  Easy to fit one of these into a 4U Rosewill case (HP PSU).  Can't speak to the particular one on Ebay.

[Elder III]

Has anyone had any luck with the various server PSUs on ebay?

https://www.ebay.ca/itm/2400W-10GPU-Mining-Power-Supply-For-Eth-Rig-Ethereum-BTC-Miner-Dedicated-90-PLUS/352236174282?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D986116ef2daf49a8935ce44d07305446%26pid%3D100675%26rk%3D5%26rkt%3D15%26mehot%3Dag%26sd%3D263420036873&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253Ad3593131-f315-11e7-b1b1-74dbd1802c4f%257Cparentrq%253Acce55ef91600ab66f206ed05ffec64f5%257Ciid%253A1

It looks like its just housing two HP Server PSUs, my only issue would be with the reliability of the wires as opposed to a breakout board option.

With Parallel miner having no stock I was hoping someone else had some ideas on server PSUs, in Canada a lot of the ATX PSU deals are pricey after shipping

The server PSUs that I like are the HP 1,500w common slot PSU (yellow label on top, takes 220v) and the DPS-2000BB (220v).  I use them with breakout boards, not wires.  You can strap or screw in a heatsink on the HP 1500w units and that will help keep them cool and the fan noise to a minimum.  Easy to fit one of these into a 4U Rosewill case (HP PSU).  Can't speak to the particular one on Ebay.

DO you use a passive heatsink or one with a fan? I presume you just dab some thermal paste on and zip tie it to the exterior of the PSU? Noise isn't a problem for the server PSUs out in our dedicated mining portion of our barn, but if we ever have any in the house it certainly would be an issue...

[dragonmike]

Apologies if you feel I broke a rule, it wasn't my intention. I was merely pointing to the choice that is given to anyone around here and the easy possibility for long-standing members to make an extra buck or two.

I don't take any part per se. Just use the arbitrage opportunity that is given. Just like mining.

  let's keep it simple dragonmike - Phil's thread is all about knowledge sharing - all these ICOs could be discussed sparingly but putting them in sigs etc is a bit much.

Heh, I thought sharing how to make an extra buck with altcoins in the altcoins thread was a good idea!
For the records, I delete all those sleezy ICO pm's as soon as they come. I always research the coins I put in my signatures before I do so.

But anyway, enough about this. Here's my latest construction... 3x Scythe UltraKaze with Silverstone grilles in front to save my fingers from certain chopping:


Very diy but I guess it'll do the job. I'll fix the thing to the 6x Vega rig tomorrow.

[vapourminer]

But anyway, enough about this. Here's my latest construction... 3x Scythe UltraKaze with Silverstone grilles in front to save my fingers from certain chopping:
https://farm5.staticflickr.com/4641/24678239207_90ddebd9de_z.jpg

Very diy but I guess it'll do the job. I'll fix the thing to the 6x Vega rig tomorrow.

looks pretty tidy actually. is that bracket on top one of those rails you slot shelf brackets into?

i just cant help but wonder if it would hover if you lay it on its side while plugged in..

[citronick]

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But anyway, enough about this. Here's my latest construction... 3x Scythe UltraKaze with Silverstone grilles in front to save my fingers from certain chopping:


Very diy but I guess it'll do the job. I'll fix the thing to the 6x Vega rig tomorrow.

this is cool

compared to mine, this looks better and tidy

how do you daisy chain the power on the 3 fans ?

[cryptotore]

I love this thread, so much knowledge!

Could you guys give me some advice on PSUs?

I'm going to build a couple of 12/13 GPU rigs, and the plan is to use 1x HP 1200W server PSU with breakout board, per 6GPUs.
I'm thinking: 12 PCI cables on each PSU is perfect, 6 plugs for the GPU's and 6 for the riser cards. (I'm only going to use 6pin risers from now on, tired of molex to sata adapters melting )

And I would use a cheap ATX PSU to power the motherboard, ssd, fans and the 13th GPU.

This is the plan for the RX 570 rigs, the GPUs only have 1x 8pin power connector, but how should I do it on cards that got 8+6 pin? Or even 8+8?
Is it true that I can run a card with just 1x 8pin plug, even tho it comes with two? What are the risks?

I'm going for 7 12/13 GPUs in total in this round:
3x RX 570
2x 1070 Ti
2x 1080 Ti

Thoughts on this?

This is the case I'm using:

[GabryRox]

Can someone who has paid BTC for NewEgg purchases help me out possibly?

I just tried to do this for the first time but got stuck at this point:

- I want to pay from either my Bittrex wallet as I sold off a few alts in order to pay this invoice (I assume this is possible).

- After choosing Bitcoin payment option on NewEgg, the bitpay window pops up wit hteh QR code (on the scan tab) for a phone scan.  Since I want to pay with exchange wallet, I click on the Copy tab and the exact amount of BTC appears, along with a URL that starts with bitcoin... https//bitpay.com.... followed by a string of numbers that doesnt look long enough to be a BTC address.

- The instruction say to copy that full URL into your wallet's send screen, but I don't think this will work in the BTC address field send screen on Bittrex, will it?  Doesnt that need to be a standard BTC address only?

Am i missing something or can you not send payment from an exchange wallet like this?