Just found this thread. I've got two DL580 G7's with E7-4870's. I'm currently mining with 30 GPU's on standard mobo's. Never could get GPU's to work in these. Is it still profitable to set these up and eliminate the "small" rigs? I am currently running ZEC, but would switch out to something else if profitability is there. Would definitely want to swap CPU's to 8837's.

Tried reading through the whole thread...but it's really long

Has anyone found any "cheap" 4U+ rack mount systems that can run 4-7 cards internally?

I have over 50x 550s.

12 x each rig.

Each does around 480h/s for 42w

Actually HiveOS and the HP's work GREAT.  Currently have 2 running 9 cards each.

It's HiveOS and the Dell R815's that DOESN'T and that's just a NIC driver issue.

Try to source them refurbished or on ebay with bad batteries. I bought 3 from ebay that were server based UPS that just needed new batteries and i picked them up off amazon for a few dollars each, i even went to my local thrift stores and picked up a handful of them for a few dollars and half of them even worked, just needed fresh batteries. The ones i got from local thrift stores i built custom lithium batteries from 18650 cells, i have been collecting thousands of them over time because i was planning to build a DIY tesla powerwall with them along with build battery packs for my Catrike bicycle that i converted to electric assist, i get them free from thrift stores, hardware stores from the recycle bin just ask the store managers, and colleges. The most i got from thrift stores because when someone donates a laptio they cant resell it, so it gets scrapped and disassembled and they pay for someone to take the batteries away.

This is some of the batteries i got last month from going around and asking politely from many locations and picking up some from locations that told me they would place them to the side for me...


Here are some cells im still slowly testing out, i bought 4 tester/chargers units a while back that allows me to test 16 cells at a time, so its only time to test them, i put them on the test and forget about them really and come back when i remember about them, write the capacity on the side of the cell and move on, i store them in bins based on the capacity so my wall cells i assemble have the highest capacity cells. I have probably close to 40,000 cells assembled in my diy powerwall to date that ive never purchased...

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.

I mentioned to try 896x8 not 896x4 (or was that a typo?)

Try with --opencl-launch 896x8

Yes,  i am getting 870-880 H/s with RX570,  with Claymore 11.3 (SMOS) , in Windows,  you can reach 900-1000 H/s with Cast-XMR.

Yeah,  with XMRig i got 750 H/s per RX... but finally with Claymore 11.3 i am getting 860-870 H/s per card.   thanks

Looks great Spinx!

Nice system.

I am trying Hive OS on my DL580 G7 with 4x E7-4830's and 4x GTX 750. It is up and running but something must be wrong with my configuration for the CPUs. I am getting some affinity errors on a few CPU cores and those cores only produce 11 H/s instead of the 33 H/s on cores where affinity works. I have disabled hyper-threading in the BIOS so the 32 cores shown are real CPU cores.

Could you post the CPU configuration that you used with Hive OS. Hopefully that will fix my problem.

Also is the rack that the DL580 and GPUs are mounted in a commercial rack or home made?

If home made can you provide assembly instructions.

Thanks

sundownz posts have pictures showing and they do not have any extension.

See here: https://bitcointalk.org/index.php?topic=1955358.msg31588057#msg31588057

The link to one of his pictures is: https://ibb.co/jsWe57

You can put that link in a browser and see the picture and you can do the same with my picture link.

So the answer is not the extension but must be something else.

[*url=https://ibb.co/jsWe57][*img]https://preview.ibb.co/bYhmk7/0303181208_resized.jpg[/img*][/url*]"

Are they RX vegas or 5xx 4xx? If latter, just use linux, if former, uh, you might as well save yourself the trouble and commit yourself to an asylum now. I don't think vegas would work in this thing? I didn't check what PCI-E rev it has, but I can't imagine it's more than 2.1.

Make sure your bios is updated to latest. Play with the port configuration. Different pci-e lanes should be attached to different cpus, and I don't know what that configuration looks like. I would just run everything on risers.

I normally run centos, just because that's what I use all day on prod servers at work. debian, ubuntu, centos, etc, any of them should work fine. You'll need to check on driver availability as they only usually support a couple distros. I remember having to reinstall to ubuntu from debian or vice versa because amd only had drivers for one and not the other.

More recently I've been looking into engineering samples on ebay. Intel ES abound, but AMD ES is limited. I've gone through profitability calculations on all these chips and most of the ES are sitting at like 5-6 months on cryptonight. I think someone has already been picking up these ES chips to mine on them.

Other than that, with scalable coming out, I would be looking for cheaper v2s and v3s to start hitting ebay and refurb dealers. I've seen a couple instances of v2 and v3 on ebay where power usage is 1.2-1.3x, hashrate 0.9-1.1x and cost around 0.5x (at current prices) of vegas. Most of these units have some number of pci-e slots on them (usually only a couple). But it would allow you to stick a couple gpus on each unit.

Was that just an old 160w pico?  Think you need one of the newer 200-250w pico's to be able to power anything more than a hard drive and normal motherboard.  I think that molex connection sucked too much juice and just smoked the low watt pico.