Search content
Sort by

Showing 20 of 42 results by cleverserge
Post
Topic
Board Mining (Altcoins)
Re: RX 580 Bios mod for Linux
by
cleverserge
on 09/06/2017, 13:53:59 UTC
Post
Topic
Board Mining (Altcoins)
RX 580 Bios mod for Linux
by
cleverserge
on 09/06/2017, 13:18:09 UTC
Hello,

I've succeeded to built stable 10 GPU rig on MSI RX 580 cards using Ubuntu 16.04(4.4.x kernel) and 17.10 drivers. (Asus Z270P + 2 splitters, disabled sound and serial in BIOS and enabled 4g)
But the problem is in power consumption(~200W per card on solo mining on modded bios) and hashrate(25MH only). Afaik there is no possiblity to increase mem frequency and downvolt cards in Linux and the only way is to flash the bios with fixed GPU/mem frequency and voltage.  Does anybody have such expirience? It it too risky? I'm ready to donate some coins for useful suggestion or help in this question

Best regards,
Serge
Post
Topic
Board Mining (Altcoins)
Undervolt MSI RX 580 4G Elpida
by
cleverserge
on 21/05/2017, 20:45:58 UTC
Hello, Everyone

Got new 6xMSI RX 580 4G Elpida. Timings were set from 1500. But I can do nothing with power consumtion. It is too high (one card+system 300W on th wall). In MSI afterburner core voltage control is inactive and shows 0mV. I use 17.4.4 drivers. Any advance is appreciated.

Thanks
Post
Topic
Board Mining (Altcoins)
Re: Restore default VBIOS MSI RX 470 4G
by
cleverserge
on 03/04/2017, 08:11:13 UTC
What driver version AMD do you have?

Crimson 16.9.2
Post
Topic
Board Mining (Altcoins)
Restore default VBIOS MSI RX 470 4G
by
cleverserge
on 02/04/2017, 20:58:45 UTC
Hello
I've flashed the VBIOS of MSI RX 470 4G card with Samsung RAM (the rom file with changed timings I've prepared by myself from the original one). After that the card is visible in OS in device manager but neither miner nor atiflash see it. Is there any way to reset card's VBIOS to default or any hook how to fix it?

P.S. I have 13 more such new cards and I'm really afraid flashing others

Thanks,
Serge
Post
Topic
Board Mining (Altcoins)
Re: 8x GPU mining rig
by
cleverserge
on 31/03/2017, 09:35:31 UTC
The video is how to build 7x GPU rig. There is no problem with 7x GPU on MSI Z97 Gaming 5. The question is about possibility of building 8x gpu rig on MSI z97 G5 or Asrock H81 pro btc rev2 with PCIe extender
Post
Topic
Board Mining (Altcoins)
8x GPU mining rig
by
cleverserge
on 27/03/2017, 21:56:16 UTC
Hello, all

Has anybody suceeded in building 8x GPU mining rig on Ubuntu or Win10 ?

I have MSI Z97 gaming 5 motherboards and they work great with 7 GPUs.
I tried this adapter http://www.ebay.com/itm/PCI-E-4X-Female-to-NGFF-M-2-M-Key-Male-Adapter-Power-Cable-with-Converter-Card-/311414541676 and this one http://www.ebay.com/itm/PCI-E-1X-Expansion-Kit-1-to-3-Port-Switch-Multiplier-HUB-Riser-Card-USB-Cable-/191949792720
Both didn't help to work 8th GPU. Though here https://www.youtube.com/watch?v=F9z5bmjEepQ&t=21s the rig is built.
Please share your expertise in this question

Thanks,
Serge
Post
Topic
Board Pools (Altcoins)
Re: Pascal Mining What Pool is Better?
by
cleverserge
on 18/02/2017, 20:11:46 UTC
My rig has 6xMSI RX480 4Gb and each is in 721Mh/s ...
My R9 390 gives 560MH each. Can you please share the screenshot with your results?
Post
Topic
Board Mining (Altcoins)
Re: Optiminer/Zcash v1.6.1 (GPU, Windows+Linux, AMD)
by
cleverserge
on 05/02/2017, 20:18:51 UTC
Optiminer since 1.5.0 (1.6.0 and 1.6.1 too) is still not working with modded R9 390. Though Claymore 11.1 works like a charm
Post
Topic
Board Mining (Altcoins)
Re: RX 470 and 480, 4GB vs 8GB?
by
cleverserge
on 05/02/2017, 20:10:23 UTC
My opninion that ROI of RX 470 4G is/will be the minimal. They are less effective in mining(up to 10%) than rx 480 but cost 25+% less.
Post
Topic
Board Mining (Altcoins)
Re: Amdgpu-pro Driver Issue ubuntu 16.04.1 LTS
by
cleverserge
on 05/02/2017, 20:02:21 UTC
Catalyst 16.9+ drivers do not allow 6 GPUs in Win7 even with 6xGPU patch. Try Win10.

To troubleshoot ubuntu it is required some more information.

1. /var/log/syslog
2. /var/log/Xorg.log or smth similiar

have you added your user to video group?

I use ubuntu 16.04 server on my rigs with no bugs. Try it maybe
Post
Topic
Board Mining (Altcoins)
Re: Need help with strange Sapphire nitro RX 470 BIOS
by
cleverserge
on 31/01/2017, 22:35:49 UTC
The right PBE is here for new Hynix
https://github.com/IojkinKot/PolarisBiosEditor
Post
Topic
Board Mining (Altcoins)
Re: Need help with strange Sapphire nitro RX 470 BIOS
by
cleverserge
on 31/01/2017, 20:05:19 UTC
PBE is the latest 1.4
According to GPU-Z memory chips are hynix
Post
Topic
Board Mining (Altcoins)
Need help with strange Sapphire nitro RX 470 BIOS
by
cleverserge
on 31/01/2017, 19:44:24 UTC
Hello,

Today I've received a new Sapphire NITRO+ RX 470 4G (11256-06-20G) card and was going to modify the bios in a standard way via Polaris BE. But when I opened saved rom file I saw this
http://www.awesomescreenshot.com/image/2120103/c946f62a3bc9d82ac8250bbb0780ce9d

Does anybody know how to modify such strange rom?

screenshot of GPU-Z is here
http://www.awesomescreenshot.com/image/2120089/3f4f328cb2c676ea4509c23cf8f918f9

Thanks,
Serge
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX 470 cards modifications. What is the difference
by
cleverserge
on 31/01/2017, 19:36:50 UTC
Post
Topic
Board Mining (Altcoins)
Re: Optiminer/Zcash v1.5.0 (GPU, Linux, AMD)
by
cleverserge
on 27/01/2017, 18:40:32 UTC
Two of my 6xMSI R9 390 rigs work fine with stock .rom and Ubuntu 12.04/Cataalyst 15.12. The third one 6xMSI R9 390 with custom rom (made based on https://bitcointalk.org/index.php?topic=1465128) does not work at all on optiminer 1.5(either Ubuntu or Win7. Stops at once after the first card is initiated. Lower intensity does not help) but works fine on Claymore 11.1 and 1.4. 
@optiminer
What can be the reason of that? Can you please give any suggestions how to troubleshoot this?

Thanks

There is not that much change between 1.4 and 1.5 so this surprises me. The number of computations done has been reduced, so it memory is probably stressed more which could interfere with your custom rom tuning.

1.5 miner works only with card with stock rom. I tried to set intensity to 1 for all cards but without success, only one card is working.
Post
Topic
Board Mining (Altcoins)
Re: Optiminer/Zcash v1.5.0 (GPU, Linux, AMD)
by
cleverserge
on 27/01/2017, 07:53:10 UTC
Two of my 6xMSI R9 390 rigs work fine with stock .rom and Ubuntu 12.04/Cataalyst 15.12. The third one 6xMSI R9 390 with custom rom (made based on https://bitcointalk.org/index.php?topic=1465128) does not work at all on optiminer 1.5(either Ubuntu or Win7. Stops at once after the first card is initiated. Lower intensity does not help) but works fine on Claymore 11.1 and 1.4. 
@optiminer
What can be the reason of that? Can you please give any suggestions how to troubleshoot this?

Thanks
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX 470 cards modifications. What is the difference
by
cleverserge
on 25/01/2017, 12:13:29 UTC
how much time has passed since the date of purchase? At my cards have a problem after 2 months mining ETH. (temperature GPU 60 C)

about 2 months
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX 470 cards modifications. What is the difference
by
cleverserge
on 24/01/2017, 08:01:23 UTC
I have one rig with Nitro + RX 480 and dont see any problems with thermal pads
Post
Topic
Board Mining (Altcoins)
Re: Sapphire RX 470 cards modifications. What is the difference
by
cleverserge
on 24/01/2017, 07:51:20 UTC
I'm choosing betweeen MSI RX 470 GAMING 4G and Sapphire Nitro RX 470 4G 1216 MHz
So it does not matter Sapphire Nitro RX 470 4G 1216MHz, 1236MHz or 1260MHz? They are all ok?