It turns out that you cannot use custom cpu settings on more than one machine even if the systems are exactly the same because Linux disables different cores for no apparent reason.

I had affinity errors on my second HP DL580 G7 running HiveOS because Linux did just that disabled different cores. The only way I could run without getting affinity errors was to let XMR-Stak auto-generate it's own on startup like you have.

For me not having control is not optimal but because Linux is stupid I have too.

I have updated my original post: https://bt.irlbtc.com/view/1955358.msg33408190#msg33408190

I am still waiting on the HP DL580 G7 10-pin to dual 6-pin power cables. I got the 10-pin to dual 8-pin I ordered later and they are very well constructed:

In the mean time I wanted to find a cheap frame for mounting my GTX 750's externally for the three HP DL580 G7 systems I have.

I came across this: https://www.ebay.com/itm/Multipurpose-GPU-Mining-Rig-Rack-Case-Frame-Bitcoin-AMD-NVIDIA-GTX-RX-580-1070/253405188911?hash=item3b0020532f:g:EkEAAOSwKcVadm9J for $24.99

After looking at the picture and measurements I was able to determine that it was actually: Whitmor 4 Tier Floor Shoe Rack - 20 Pair - Storage Organizer
https://www.amazon.com/gp/product/B005KC6DY0/ref=od_aui_detailpages00?ie=UTF8&psc=1

The ends are sturdy plastic resin and the horizontal round poles are coated metal.

I ordered four of them at $7.09 each on April 11th. Total with tax was only $30.68.

Current price is now $10.21 with free shipping over $25
 

I am looking to go the 240v route for all the servers I have acquired (5x HP DL580 G7, 2x Dell R815, various other SuperMicro) and have some questions in doing so.

I am looking to pick up these PDUs: https://www.ebay.com/itm/Lot-of-4-Spectrum-Power-Distribution-Unit-PDU-8x-240V-16A-72A-116BUHEN-01/192482251025

What cables do I purchase to go from these PDUs to the server power supplies?

Also how did you connect the PDU to the L6-20R?

Thanks

Im not sure about HiveOS, but ive been using USB drives for SMOS for nearly a year on rigs, not a single failure yet. Not even a corrupt file error from a block going bad.
Im using Samsung USB3.0 16GB drives

http://www.cointainer.life/2018/02/22/density-electrical-101/

That should answer all your electrical questions.

Under Linux, I have 6 Nvidia cards working.  Not sure what is up with the Proliant G7 series.  I have tried a DL360, DL380 and the DL580 and none of these will boot with more than 4 GPUs installed.  Windows will lock up at loading screen.

Slap a USB stick with HiveOS on it and 6 get recognized easily.

I have a ML350P G8 that has taken 6 GPUs in windows easily.  

Edit* Make that 9 1060s in one 580 in HiveOS.

What version of Windows are you using?

Hows the servers working for yall?

Just realized your a fellow container farmer like myself, but i have mine setup on an all watercooled setup to control temps... how have you managed to control temps in yours?

mine is located in Florida, i bought some property that had 2 old mobile home pads with separate power panels that old abandoned burned down mobile homes lived once a long time ago...... Picked up the property for little to nothing and settled with the county to offset all the fees tacked on the property from all the junk and 2 abandoned mobiles if i cleaned it all up and got rid of the junk... so i spent a few months burning junk from the 80's lol....

I hit a wall at 9 cards on the 580 also, using SMOS. Spent countless hours getting 9 cards to work. In one way i love the HP servers, H/s on cryptonight is a bonus but as a gpu-mining platform they look good on paper but is in my experience not fun maintaining. Did anyone try to run Windows 10 on the 580 with success?

I need to do some research on these servers that all of yall are running to see if they are still profitable to buy... GPU prices have dropped drastically, but profits have been marginal at best..

Ya i tried to use forced air at first, but the heat here in the summer just made it to impossible to maintain temps on the gear, so i had to build a script that would underclock the gear to 50%tdp during the hottest part of the days and back up to 65% during the night hours, so i searched into better means of cooling and invested in a large single waterloop that i run my entire farm off of now. I rented a ditch witch and dug a series of 2ft deep trenches on the property and i ground buried a few hundred feet of pex tube in the ground as my source of radiation of heat. My first attempt at running a test rig off the setup showed that running a typical watercooled pc pump was out of the picture, because the head pressure was to large on pushing fluid through 6GPU's on the first test rig. Then i moved to commercial inline pumps and over time they kept dieing on me also.. the head pressure combined with the heat just destroyed a commercial pump in a matter of a month and would start leaking from everywhere.. so i moved on to a spa/jacuzzi style pump thinking it was heat doing the issue and it turned out the heat was the issue all along killing the pumps, because it lastest the longest, so i started scaling up adding rigs to the waterloop and quickly i found myself pumpless again as the headpressure just was to much for the rigs. So a forum member mentioned an idea and its been rock stable for 6+ months now... I currently use a double pump system, but 1 is only running at a time, other is on pressure switch just as an emergency, but now i use a gravity fed system to cool all the gear. I have large 4inch pipes running across the top of the container wall that is pumped with water from the pump and on the end of the pipe about at the 90% level of the pipe, i have a large pipe dumping runoff back into the pump tank. Basically im using gravity to flow the water from the large 4inch pipe, into a diy manifold spreading the water to all 6 cards and flowing back out to the ground loop via a pipe at a level above the level of the pump tank. This has reduced the watts the pump runs at greatly and allowed it to stay cooled and reliable so far.. im letting gravity do all the work for me now... granted i went from a 40c loop to now a loop in the 50's, but it is the best way to go about it for me. I run universal copper CPU coolers i bought from alibaba in bulk, so my cost on them in bulk was around $8 each. after converting the system over to water, i dropped about 1500watts from the farm from removing all the GPU fans and just running a water pump and using mother earth to remove the heat. Now my entire farm runs at currently 58c max so far on the 90f+ days.. not sure yet what 100+ days will bring me yet, but if i have to im prepared to add additional cooling via a large radiator i purchased meant for industrial a/c system, but so far its been super nice running it this simple.