Building Cheap Miners : My "Secret" - page 31.

SQ1

newbie

Activity: 8

Merit: 0

Quote from: Juggar on January 18, 2018, 02:05:30 PM

Quote from: Amstellodamois on January 18, 2018, 10:07:24 AM

Quote from: nsummy on January 15, 2018, 02:08:33 PM

Quote from: VyprBTC on January 14, 2018, 07:56:23 PM

Quote from: Amstellodamois on January 14, 2018, 07:44:20 PM

Quote from: PharmEcis on January 14, 2018, 06:12:50 PM

Quote from: Amstellodamois on January 14, 2018, 05:50:56 PM

http://www.ebay.fr/itm/PC-Gigabyte-Brix-GB-BSi7HA-6500-Intel-Core-i7-6500U-2x-2-50GHz-GB-BSi7HA-6500/152714522870?hash=item238e7eb0f6:g:SW0AAOSw8-xZ2AHF

Minimal since it has no GPU assist w/ only Intel HD video and not Iris Pro w/ 128mb of RAM.

Thanks! Is there something in the product number that says "Iris Pro thingy"?

i7's that have Iris are
5950HQ
5850HQ
5750HQ
5755C
5775R

i5's that have Iris are
5675C
5675R
5575R

There is more to the list than this
There are a bunch of Skylake processors with them: https://en.wikipedia.org/wiki/Skylake_(microarchitecture)#Mainstream_and_high-end_desktop_processors
Along with Haswell: https://en.wikipedia.org/wiki/Haswell_(microarchitecture)#Desktop_processors

Additionally some of the Xeon E3 V4 processors have it: https://www.anandtech.com/show/9532/the-intel-broadwell-xeon-e3-v4-review-95w-65w-35w-1285-1285l-1265

I couldn't find any CPU that would work on an ATX mother board, am I mistaken?

Yeah you are mistaken. There are plenty aval that will work on any Z97 or H97 mobo provided the BIOS is up to date and supports those CPU's per manufacturer.

If one had like 50 Z97/H97 mobos, they could make a killing. Unfortunately you need mobo, ram, HDD/flash drive and PSU. But I can still stomp that $250 Brix deal into the dust with what ive found.

What did you find that beats the Brix deal? I cant find one that's anywhere close to 249.

PharmEcis

jr. member

Activity: 176

Merit: 1

So last night I got home around 2AM and noticed that the DL580 I had just left wasn't showing up in the zcash pool. I thought the breaker tripped again because I couldn't reach out and remote control it so I went to sleep because I wasn't going back to fix it. I get back to the server late this morning and find it still running. I hadn't checked the tracker for ITNS and it showed the server working all night long. Somehow this box was still doing work in the EWBF miner but it wasn't registering with flypool even though it was submitting results? I restart the client and it's now registering as an active worker. No changes to the config file, just a restart. Is this common or was this a fluke?

I'm currently getting about 1.25KH/s on the CPU's with CPU usage set to 92. This gives me 30T which so far has given me the best bang for KH/s w/o impacting the GPU side. The chips have 32MB L2 and 96MB L3. I tried setting # of cores to half of L2 but that was only 650H/s or so.

PharmEcis

jr. member

Activity: 176

Merit: 1

Currently on Server '16.

This thing draws some juice. In order to test the load w/ only one killawatt, I had all 4 power plugs plugged into a strip. Under full load it tripped the built in breaker in the strip. I've got the server back on 2 120v circuits to run but now I need another killawatt to really know how much power things thing is consuming.

240v upgrades soon. I already have some 16a PDUs but I'm trying to hold off with them until I start deploying in the container so I don't do things twice.

VyprBTC

full member

Activity: 350

Merit: 100

Quote from: PharmEcis on January 21, 2018, 02:22:41 AM

After much weeping and gnashing of teeth, what should have been a painless procedure that has swallowed the better part of a day to figure out is finally complete. The DL580 G7 is rocking the E7 8837's. All in all, it required what should have been easy. A BIOS update. Thanks HP.

Spinx, what settings are you using for the miner? I'm currently seeing about 1K/s w/ the default config from launching it and letting it figure itself out.

Good to hear it was finally figured out!

What OS did you end up running?

PharmEcis

jr. member

Activity: 176

Merit: 1

After much weeping and gnashing of teeth, what should have been a painless procedure that has swallowed the better part of a day to figure out is finally complete. The DL580 G7 is rocking the E7 8837's. All in all, it required what should have been easy. A BIOS update. Thanks HP.

Spinx, what settings are you using for the miner? I'm currently seeing about 1K/s w/ the default config from launching it and letting it figure itself out.

VyprBTC

full member

Activity: 350

Merit: 100

Are you guys running Windows Server or will Win Enterprise work fine with these server builds? Curious.

PharmEcis

jr. member

Activity: 176

Merit: 1

The DL580 is back under it's own power and running 4 1060s. Even with the drive controller disabled and the array physically disconnected, I'm pulling 1085W with all 4 PSU's plugged in. If I unplug 2 PSUs, it drops to about 1025W w/ the 1060's +175/500. Stock vcore so power usage only went up 25W or so w/ OC. That's not exactly efficient. LOL Box currently has X7542s so no AES and only like 240H/s for a total of 1280W of power draw with EWBF cuda miner going too. The penalty draw for the 4 CPU's and 8 memory cartridges has to be supplemented by CPU work and currently, with the CPUs I have, I do no work. If the 8837's I have that don't boot can do 1600H/s like stated prior, that would definitely help offset the increased energy cost. I have 4 1060's in a Z97 setup that I'll throw the meter on tonight or tomorrow to see what it's pulling to compare.

My biggest fear is I'll get a bunch of rigs ready to go and then have no cards to fill them. : |

greyday

member

Activity: 434

Merit: 52

Quote from: VyprBTC on January 20, 2018, 09:44:21 PM

Quote from: greyday on January 20, 2018, 09:16:32 PM

Are all of you running on Windows? Because I'm on Lubuntu, and now have 4 of the i5 version and all are running stable at 359mh/s with no drop...

I moved it to linux mint, haven't done the turbo thing yet though but the i7 is hasing at 250 lol. wtf.

Huh. My lowest running i5 has dropped only 7-8 (to 352). One is still running at 100%, and I haven't even moved them to the basement yet...

VyprBTC

full member

Activity: 350

Merit: 100

Quote from: greyday on January 20, 2018, 09:16:32 PM

Quote from: VyprBTC on January 19, 2018, 08:18:42 PM

Quote from: nsummy on January 19, 2018, 08:16:41 PM

Quote from: VyprBTC on January 19, 2018, 07:32:11 PM

Quote from: nsummy on January 19, 2018, 01:18:07 PM

Quote from: greyday on January 18, 2018, 04:06:57 AM

Quote from: VyprBTC on January 18, 2018, 03:33:06 AM

Quote from: greyday on January 18, 2018, 01:28:19 AM

nsummy I am WAY jealous of those numbers. But for around $310 total and drawing 43W for 360h/s, I'm content enough (though if I buy any more, I would hold out for the i7s for SURE).

Yeah those numbers are nice. I can't get those on windows, it will bounce to 550, then rapidly just drop down to 250. Very weird.

I also tried installing linux but it was an epic fail. I have no clue how to deploy xmr-stak on linux. I'm sure someone would have gotten a laugh seeing me trying to navigate through it all knowing zero about linux lol.

Ah well.

Try commenting out the memory thing (I posted about it previously, can't remember it this second but it's one of the steps suggested in the guide). That solved that same problem for mine.

EDIT TO ADD: here it is: this may be a linux or Iris specific thing, but (at least on the i5) doing the suggested change to sudo vi /etc/security/limits.conf dropped my start from 359 to 320, and eventually my hashrate dropped to 180. Commenting it out brought everything back to 359 and stable, so I suggest testing it if you want, but it doesn't seem necessary (if you are still getting locked RAM messages, I was able to get rid of them by sudo running the miner, but I don't think they had an effect on hashrate)

I'm going to try out your suggestion. VyperBTC and I have been exchanging a few messages and we are both experiencing the same issue with hashrate dropping. It starts out fine, but eventually it will drop to the upper 200s. At first I thought maybe the processor was too hot and throttling, but restarting the miner fixes it so I don't think that is the issue.

I've tried it but it didn't help unfortunately. I'm not sure how it would effect performance programming a script to close out and sudo start the xmr-stak every 15-30min. That's not getting to the root of the issue, it's just a bandage to get around the actual issue of why the hell is it happening lol

Well at least my problem isn't happening every 15 minutes. More like letting it run for 15 hours then it happens

Actually though I just thought of something. Did you ever go into the bios and enable turbo mode? I think without that, the processor does actually throttle and that might explain why it happens so quickly for you.

No i didn't - the only thing i did was enable power on if power loss. I'll change that and see if it helps, thanks!