1300 / 120 = 10.83 A

I have several of these running both Windows and nvOC and they are rock stable.  Make sure to set your BIOS as follows:

Advanced/Platform Misc Configuration - Everything Disabled
Advanced/System Agent (SA) Configuration/Graphics Configuration/Leave alone
Advanced/System Agent (SA) Configuration/Graphics Configuration/DMI/OPI Configuration / DMI Max Link Speed = Gen2
Advanced/System Agent (SA) Configuration/Graphics Configuration/PEG Port Configuration / Gen2, Gen2, Auto
Advanced/PCH Configuration/PCI Express Configuration/Gen2
Advanced/PCH-FW Configuration/PTT Configuration/PTP aware OS = Not PTP Aware
Advanced/Onboard Devices Configuration/HD Audio Controller = Disabled
Advanced/Onboard Devices Configuration/M.2_1 Configuration = Auto
Advanced/Onboard Devices Configuration/M.2_2 Bandwidth Configuration = X2
Advanced/Onboard Devices Configuration/RGB LED Lighting/In Sleep, hibernate and soft off states = Off
Advanced/APM Configuration/Restore AC Power Loss = Power On
Boot/Above 4G Decoding = Enabled
Boot/Secure Boot/Key Management/Clear Secure Boot Keys = YES

I use the same risers, but have seen about a 5% failure rate, so it could be a bad riser.  I also run with the G3930 without issues but have since switched to G4600 on my 8x 1080Ti rigs.

Right, use the actual IP of the miner.

Pretty good performance here with 4x 1080Ti in 16x PCIe slots:

Just a FYI, current version is 0.5.2

Hmm, I have:

2 rigs with 8x 1080Ti
1 rig with 4x 1080Ti
1 rig with 5x 1070
1 rig with 6x 1050Ti

They are all mining ZEC on MPH doing 17,500 KH/s combined pulling in about 0.3 ZEC a day (and ZEC is down 7.5% for the week).

Maybe I should swing them over to solo mining NXS to see how it goes.

I'm running nvOC (linux) on my rigs though, so I'm not sure how big of a pain it would be coax them into mining NXS...

Here's a nice 60GB SSD for $33:

https://www.amazon.com/gp/product/B01M2UUACN/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

I run them in all my rigs.  No issues whatsoever.

I got an Antminer S9 on the way.  ParallelMiner is oos on the Delta 2400W PSU kit for the S7/S9 (and all other Delta 2400's atm).  Their Antminer PSU kits come with those black and while 6 pin cables where their GPU comes with the black and yellow 6+2 pin cables.

I have a very underutilized Delta 2400W PSU (only has a 400W load on it).  So until I get a dedicated Delta 2400 for the S9, can I power it from this PSU using the black and yellow cables just leaving that 2-pin unconnected on the S9 side?

PM sent.

Any chance ccminer can be updated from 1.8.2 in the current 19-1.3 release to the current 2.2.2 release?  I tried mining MONA, but on my 1080Ti rigs, they just keep falling over after a couple of minutes.  I'm thinking it is due to the ancient version of ccminer that is packaged with 19-1.3.  Rigs running 1070s work fine with the 1.8.2 version.  Not even 190W Core at 0 and mem at -1200 can I get a rigs with 1080Ti's stable on MONA.

I tried downloaded the source code for 2.2.2 from github, but I was unable to compile it to work with 19-1.3.  Kept complaining about a missing Cuda Toolkit version 6.5 or some such nonsense.  Maybe someone smarter than me can whip up a pre-built image for linux of ccminer 2.2.2 that we can use?

Thanks!

VERY interesting.  I'll will most certainly explore this further and if that is how it works, then auto exchanging to BTC might not be the best idea.

General question about auto switching to most profitable coin.  If you do this, don't you want some automatic mechanism to convert what you're mining into Bitcoin very frequently?

If you don't, aren't you constantly chasing coins with high difficulty and by the time you manually convert them to Bitcoin or whatever, their value may have fallen greatly?

Back when I first started, I was using NiceHash, and it did exactly that, convert to BTC more or less in realtime.  But the fees with NiceHash are very high, which is why most people move on after a while.

Just trying to understand the pros and cons of auto switching and presumably hodl'ing, if you don't have time to spend on the exchanges everyday trading what you're mining, but just want to "set it and forget it".

Thanks

I bought some bitcoin on 10/3 @ $4,327.  I didn't go "all in" because the price seemed kinda high, given that it had been down to $3,000 just a few weeks earlier.  So have been patiently waiting for the next dip, but it keeps going on the wrong direction.     In hind sight, I should have gone all in back on 10/3.  Dammit.  I read that Reddit article that was just posted.  Guess I'll pray he's right, and wait for the next dip before going all in.

I'm still waiting on the OEM Intel cooler for the 6850K CPU I got for this build before I can fire it up.  Didn't realize it didn't come with one, but in hindsight, I think that is pretty much always the case with LGA-2011 based CPUs.  Hopefully it will be here today.

If I didn't care about efficiency, I suspect the rig would be able to do 800 Sol/s per card, for a total of 3.2 KSol.  I plan to tune it for about 700 Sol/S which should get me right around 4 Sol/W.

I moved the exit to the bottom of the block and had to slightly trim the 4th Sea Hawk cap, but I think it looks better with all 4 of them on there.



Here's the coolant flow:



I plan to swap out the Seasonic Snowsilent 1050W PSU for an EVGA 1200P2 that is way under utilized in another rig.  At the same time, I plan to order custom VGA power cables from cablemod to clean up that mess.  Might also try my hand at hard tubing this rig.  It is going in the living room as a "heater" this winter, so it has to look nice (and run quiet) to meet the approval of the boss.    That said, I might try to 4 way SLI it just for kicks.  I have read some stories about being able to do it with Pascal GPU's despite Nvidia not officially supporting 3 and 4 way SLI anymore.

Fortunately I'll only be doing 4 cards.  That's all that will fit.

Doing my first water cooled mining rig.  Using a semi parallel EK Quad block.



I'll drop a 6850K (40 PCIe lanes) in the X99 mobo so that each GPU can get 8 lanes.  In my other rigs I have found that as I add GPUs, the amount I can overclock each one goes down.  I'm going to see if its a PCEe lane issue, or some other CPU type bottleneck.  This test rig should help determine that.  

It will look pretty too being all black and red coordinated.  

Renvu (large solar supplier in CA) is running a free shipping special this week, so I broke down and ordered 48 280W panels and the needed ground mount hardware to do another 2 x 24 panel arrays.  This will boost my production by another 13.44Kw. 

These are the panels I got:

https://www.renvu.com/Solar-Products/Mono-Poly-Crystalline-Solar-Modules/AXITEC-AXIBlackPremium-280W-ALL-BLACK-Mono

That should bring my cost per kWh back down close to $ 0.00 per kWh, at least until I add a bunch more rigs.

These Delta's don't seem to like being pushed much past 1800 Watts.  On my 8x 1080Ti rig, I changed power limit from 190W to 210W, and after 4 hours, it shut down.  Miner went offline since I forgot to set the BIOS to power on after "power failure".  Guess I'll pick up some more and run 2 on my 8+ GPU rigs after all.

As Phil pointed out, this is still way cheaper than large EVGA units, and as SCSI2 pointed out, more efficient.  I'll make some custom dual C19 power cords to keep things neat.

Those 2 rigs are still running -1.  I'll get them up to -1.2.  I was kinda procrastinating thinking that 0020 would be coming out soon. 

That did the trick.  Kind of a pain having to set them individually for all 8 cards that are identical, but at least this gets around the issue.  Thanks!