Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: Ubuntu Natty Narwhal 11.04 Mining Guide / HOWTO
by
marcus_of_augustus
on 30/05/2011, 06:24:06 UTC
I keep having problems communicating with bitcoin RPC via poclbm (not sure how to use pheonix) can someone give me a hand on this? Also, what does the flag -f# does? Higher number gives higher priority? or what?

I agree that this guide has gotta be re-written. Theres too much errors on it, especially on the x86 parts.

Just one more thing, I've never really experienced with clocking stuff, so I need some brief explaination to

1. Underclocking Memory
2. Undervolting - ??

-f increases frames every second or something like that. Increase it if you want less desktop lag. People usually use -f 1 for pure mining rigs.

1. Well if you are in linux, there's no real solution right now except for changing the bios, and you have to use Windows for that. Guide : http://forum.bitcoin.org/index.php?topic=9569.0
2. Same thing with overvolting, I think..

Basically, any big under/overclocking has to go through a bios change for linux. Depending what card you have, there will be limits of how much core and memory can go. Asus is the best, can go up to 1000core i think. (5850's) However, underclocking/volting is harder because all the cards have a high lower bound.


You are wrong about 1). The memory can be underclocked in linux without modifying the bios. Read the forum threads titled the same.

Yes but not much. If you are going to underclock to the "sweet spot" to raise hashing, you have to modify bios. Lowering the memory just to the lower bound isn't going to do anything.

Wrong again. In linux you can lower the mem. clock of 5970 to 300 without altering the bios ... read the forum threads titled the same. (I do it all the time.)