Author Topic: My WIN7 headless setup, with no dummy plugs  (Read 1716 times)

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Offline Reeky_BNE

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My WIN7 headless setup, with no dummy plugs
« on: February 16, 2014, 02:48:53 PM »
Just thought I would share my newbie experience in setting up a mining rig for Dogecoin.
I chose WIN7 as this is what I am familiar with. I did try BAMT variation SMOS and it is fine but not really for me.

Had a LOT of stuffing around with the Catalyst drivers. My suggestion is that you start with a clean installation of WIN7, mine is 64bit, and create a restore point first. I downloaded and used the AMD Catalyst 14.1 Beta version. No need to download a separate SDK - just the one download. Removing and re-installing these drivers is a pain so you are MUCH better off with clean install of windows first. I lost 3 days stuffing around with drivers when I could have been mining.

I have 2 different GPUs in my PC, a Sapphire Dual-X R9 270X ($250) and a Gigabyte 280X ($400) and get 430 Kh/s at 75c and 670 Kh/s at 92c respectively. So a total of 1.1 Mh/s which I am happy with as it is nice and solid with very few hardware errors.
I spent a lot of time trying to tweak them to go higher but the instability was not worth it. Waking up in the morning to see that cgminer crashed overnight and lost 6 hours of hashing is not cool.

The Sapphire 270X is a great card for the money. If I was to do a proper rig I would use these. The Gigabyte 280X took forever to get stable due to heat. My PC is in a case with the side off and an extra 12 cm exhaust fan. I need a case as I got kids and pets and they don't leave my stuff alone so it is a safety consideration.

A couple of things caught me out with setting up my system:

Firstly was the thinking I had to use dummy plugs or linux to use multiple cards. My initial investigations and trials were using one card only for testing and SMOS. When I purchased my second card and put both in my windows machine and they both ran I was very surprised! Anyhow with the power settings in Windows set to never turn off my monitor I can run my rig without any monitors connected and without dummy plugs.

Secondly the script that dogehouse made for my miner had the Intensity set to  -I d, and because I am new to the commands in cgminer I did not see it at the very end of the script just before the timeout setting. This had me stuck on 20~30 Kh/s regardless of the switches and configurations I changed in the mine.bat file. Another couple of days of frustration.

Third was cgminer throttling the 280X due to heat. None of the changes I made fixed this until I installed CGWatcher and let it manage my card.

So I am now happily hashing away and please to be mining Doge.

If you would like to tip it's very appreciated:

Offline CoinPot

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Re: My WIN7 headless setup, with no dummy plugs
« Reply #1 on: February 16, 2014, 06:45:22 PM »
Happy to hear you're hashing away now!

I might recommend using SGMiner instead of CGMiner. cgminer hasn't been supported for awhile now but a few devs forked cg and created sgminer. The creator of cgminer actually strongly opposes alt coins, not sure why he ever made scrypt mining, but in irc he was a real nasty guy to talk to about anything but bitcoin.
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