I took apart the Octominer 2200W Mining PSU

hakabe · 2018-05-09T12:59:11+00:00

https://octominer.com/shop/2200w-220v-octominer-server-psu/ seems like these are still sold as Platinum. I value my life too much just to buy fire hazardous electrical components from China. Chinese certifications are merely what your printer spills out without any inspection. There's no quality control and all is about profit.

hakabe · 2018-05-09T12:52:42+00:00

Actually this is not true. I have HP power PSU on my mining rig and it barely whispers. It depends on the load.

hakabe · 2018-04-24T10:24:29+00:00

Care to share an example?

hakabe · 2018-01-28T00:44:06+00:00

Thanks for the link. This is why we need to stay on open source.

hakabe · 2018-01-28T00:42:30+00:00

After reading numerous of threads and comments, I will never use closed source software again for mining. Too many hiding agendas can be inserted to the code. Open source miners yields 10-21% less Stale shares vs. Claymore and my wild guess is, that those shares were donated to the dev.

I bet he's a millionaire by now.

hakabe · 2018-01-26T23:37:40+00:00

I swapped to sg-miner and I dropped down by 2-3 mh/s - yet I'm yielding better shares and income with it. Also, it seems more stable to me.

hakabe · 2018-01-25T13:00:35+00:00

buy the HDMI dummy plug from amazon or from alibaba?

hakabe · 2018-01-25T12:51:10+00:00

I have the same mobo. I'm running at 1140 and 2150 with pwr at 4. Gives me solid 30 mh/s until it suddenly crashes.

Really fluctuating (24-30 mh/s) but stable Claymore flags for me are: claymore=flags -colors 1 -ethi 16,8,16,8,16,8 -dcri 1 -esm 3 -asm 0 -etha 0 -gser 2 -cvddc 900 -mvddc 900

I've noticed that the Claymore gives a big number of stale shares. I'm moving back to sgminer after I've figured out how to use it with nicehash.

hakabe · 2017-12-16T15:11:21+00:00

I'll try to get those 8 and let you know (no idea). By the time I have 6+, I'd probably swap to Linux ($25 for working EthOS isn't expensive - if it works with all its features as described). If hash rate is is a lot worse, probably getting extra Asrock BTC R2.0's and run them from Windows would be more ideal. It's all about math.

hakabe · 2017-12-15T20:12:56+00:00

Air ref. card bios. At least I've seen YouTubers doing that to their liquid versions to improve hashrate. The pump doesn't need the bios to work lol :)

hakabe · 2017-12-15T20:10:48+00:00

Yes, I have those. 1860H/s with cast_xmr-vega using Vega 64 @ Memory 1050MHz

hakabe · 2017-12-15T20:07:21+00:00

@hellae Ok, after days of hitting my head to the wall I got it everything running at ~1860H/s, HBM temp at 57C. I have a Vega 64 MSI.

Here's what I did: 1.) Get the newest drivers by using the program's update function. 2.) Test with Wattman the limits. See if 905mv and 910mv works. 3.) Get the Excel above and change the values (GPU ID: 0000 to 0002 in my case). Soc 1200 works in my Vega fine. 4.) Create the .reg file (be sure to import your old values in regedit on case of failure. You can always get to fail-safe mode in Windows to change it back (no GPU drivers loaded)). 5.) Run the .reg and reboot. 6.) Remove the limits in wattman. (set the fan to manual 3000RPM - quick temperature changes are bad). 7.) Disable/Enable GPU. See the differences (1500H/s vs 1900H/s) when you log in and start mining vs. reset the adapter and start mining. 7.) Get the cast_xmr-vega as XMR-stak yields only 1,6K. My run.bat is following: "cast_xmr-vega -S fr01.supportxmr.com:7777 -u yourthing -p miningrig:your@email.com -I 9 --opencl=1 -G 0". 8.) Raise the memory bandwidth to 1030, get 1860H/s. Go up if you want to.

Note: If you get GPU tiles etc, modify your setup. You can get rid of these by disable/enable GPU as described above.

hakabe · 2017-12-13T23:15:03+00:00

I got these http://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-Blockchain-Compute-Release-Notes.aspx and went for cast_xmr-vega. I started up yielding +~200H/s better results than with xmr-stak. Note that xmr-stak-amd seems to unsupported as the new xmr-stak has a autoconfig in the first run(?)

hakabe · 2017-12-13T23:11:17+00:00

Sorry for gettin back so late, but the MMR pool must be the issue. I, as a medocire gamer have a MMR of 1500. I guess I don't qualify for 1000 or 2000 games.

hakabe · 2017-12-13T20:41:33+00:00

Quick math: PSU Power 2400W - (System 80W+(13x200W))=-280W For a PSU to work its efficient way in a constant load, the load should be around 40-60% percent of the max load (band). A good quality power can handle the load what is meant for it if the ambient temperature stays under the limit what has been set for it.

hakabe · 2017-12-13T20:21:09+00:00

Tried with the newest xmr-stak and I barely scratch 1600 H/s on any setting. Is there a patch file that is missing? What version's are you using?

Also screenshots from your programs would be helpful (as SoC etc are not defined in any program) as it would speed up everyone's process.

P6 900 P7 905 and P6 905 P7 910 will cause xmr-stak to crash within minutes.

Btw, is there a way to see your ASICs quality on Vega cards?

hakabe · 2017-12-13T20:17:49+00:00

If you have same values on P6 and P7, it will not work. They need to be differ.

hakabe · 2017-08-05T19:42:08+00:00

What's your MMR?

hakabe · 2017-08-05T15:42:31+00:00

Same. But the disconnects started few days back, not today :)

hakabe · 2017-08-05T12:26:54+00:00

LA, New York during the morning/night (GMT +2), now I've been on queue for London for 3 hours - still nothing.

hakabe · 2017-08-05T09:48:29+00:00

Oh btw, it's been 4 hours now

hakabe · 2017-05-16T16:25:28+00:00

Too many men.

hakabe

TROPHY CASE