>I will disclose my adventures and learnings here, for the benefit of fellow Bitcoiners.
from your name I had always thought you had a thousand ASICs, but then it's A. only =)
> I will disclose my adventures and learnings here, for the benefit of fellow Bitcoiners.
I could not stand the temptation any longer, too, and built a rig: 4x Sapphire hd5850, among the last to get for a good price. msi 790fx-gd70 - seems fine. AMD 240e. Old hard drive. Cooler Master Silent Pro 1000W (!)
I did not think about four cards not fitting a normal case at all - shock! I was lucky like hell I could squeeze them all in my second old tower
(some drilling is still needed to improve airflow). One of the two cards in the middle runs extremely hot, will have to work something out. still tweaking...
Unfortunately I am not yet fluent in Linux so I went for an old xp license. REMEMBER THE DUMMY PLUGS!
>Ubuntu 11.04 64-bit - Catalyst 11.4, SDK 2.4
why not catalyst 10.12 and sdk 2.1? rumor has it these are better
>Phoenix 1.4 with phatk kernel
gain phatk vs. poclbm?
>Long story short, it worked out just fine and the machines are running fine. But it was nerve-racking worrying about whether the rails >could handle everything. The motherboard was especially worrying, because it supplies up to 75W through the PCI-e ports. 75 * 3 = >225W, or 18.75A. On a 20A rail ...
I really like my cooler master with single rail
>And finally I also experimented with memory underclocking. From stock 1000MHz down to 285MHz.
>Runs stable, and that final tweak seems to be what got me my final numbers. 68C, 66C, and 61C.
what software are you using for tweaking? I have not yet managed to get mine below 600 without crashing... probably I am doing something wrong here
>The on-board GPU worked fine for the first mining rig. [...]
an on-board grafix card is sweet
> ---The first night of running the machines, they were all in my living room with the windows shut. I woke up to an oven, and decided
how could you sleep in there with that three rigs?
>---The last ordeal of my story is something I had completely forgotten to take into account. Circuit breakers. Like most typical homes,
I worry about starting the water cooker or something and the circuit breaker goes off...
feels like it's only worth it if you really
like to play and tweak and look after computers. =)