crazyates is spot on with the figures above.
Have a wattmeter regularly measuring a 7970 x 3 rig
I would also agree that you will be looking at 8GH/s - 8.6GH/s for that rig.

I echo what was said by a previous poster, your $$$$ have and continue to be tied up with BFL - which could of been invested in BTC directly.
BFL seem to treat their customers as investors, whilst units have been shipped to "reviewers"... it appears to me that BFL may not be a scam but a company in a large hole trying to scramble out of it.
So by releasing a few to people who will post reviews and videos demo'ing that the product "exists" and meets "promises" this is a marketing ploy to draw more people to invest their cash into BFL so they can carry on with their testing or buy a 3rd island in the middle of the Pacific. Who knows!


Pretty much sums it up.

Have sent you a PM.

How so? I'm leaning on it making absolutely no difference other than you have equipment built for a single purpose with limited resale value when the difficulty balances out the power.

I wondered if I missed something here:

* As ASICs become a big part of the minting process, the difficulty level will go into orbit
* Anyone who wants a chunk of the coins needs to invest in ASIC equipment
* With more ASIC equipment chugging on the network, won't the difficulty be so high that the rate in which the coins are minted will yield no more than the quantity being mining now on GPU rigs?
* I.e The network difficulty will counteract the additional hashing power.
* The only people who win here are the first on-board with ASIC equipment and the ASIC manufacturers themselves?

I wish new ASIC owners well and hope they make a packet but I can't help but wonder about the possibilities if ASICs had been ignored.

I believe slower cards are prone to have inaccurate data on the stats, I think there is a note at the bottom of your account page stating so on the website?

I didnt know about the crossfire bridge either, removed mine and getting better hashes for less watts. Win, win thank you!

Thanks for you continued advice guys!
I've ben tweaking config setting so far but not tried diablo over kernel yet.

MSI Afterburner

Core Volt: 1112
Mem Volt: 1600

Core Clock: 1118
Mem Clock 1000

Fan Speed: 65%

650 mhashes/s per card at the moment at 55-60C temp.
Pulling 790watts (measured at the wall).

I've read a few threads now concerning unvolting the cards but each recommended setting i've tried crashes the display driver (13.1). I tried the 12.8 for a while but felt the 13.1 was more stable other than this issue.

Additionally if I set the mem clock to 900mhz this pulls 20watts in addition which i thought was weird.
Does anyone have any further advice for the above?

Click on "What is pooled mining" top left
It gives decent explanation on the various systems within pool mining as well:
https://mining.bitcoin.cz/

wow thanks for all your replies guys.

Amazingly the GPUs are running between 50-60C at 65% fan speed set with MSI Afterburner.
Core clock 1010mhz
Mem clock 5050mhz
No specific cooling other than fans setup in a cold garage.

What is the advantage of downgrading the mem speed? Energy saving?
How can I tell if I've experienced errors with CGMiner (just switched from GUIMiner) sorry for the newb question!

I'm also running catalyst 13.1 so will downgrade and report back with hash changes!

Thanks for the tip about the thermal paste.
I've applied to CPUs before but never GPUs so a walkthrough on this would be intriguing if you have time Alex.

Hi guys,

Wondered if anyone would be able to provide any advice to tweak a test setup?
I am averaging 602 m/hashes per card - so 1.8G/hashes for the rig.

This is currently my config for cgminer:


Thank you rock gurus in advance!

Have BFL actually shipped yet?

Brill thanks guys

Hi all,

Messing around with some GPUs here for intrigue more than anything.
A few basic questions, as I'm running GuiMiner and have hooked up with Slush's Pool for now.

I note you can only select 1 device per GUIMiner client.

At the moment i have 3 GUIMiners running each with a different GPU selected as the device.
Concerning the login when pool mining, is it better to have multiple clients all logged into the same username/password, or would it be better to have a seperate login for each GPU?

Thanks in advance guys and girls.

Great job love the graphics and pace of the video. Concur with the issues raised above by other members however.

Maybe a section on what you can buy with Bitcoins as this video seems to be aimed at currency trading only.

Thanks guys

Why would you choose to keep coins in an "online" wallet?

Just wondered? The thought of keeping coins in an exchange website or online wallet gives me the jitters just thinking about it.
I know PCs are far from secure but surely if something does go wrong, you only then have yourself to blame.
I really feel for those who have been hacked in the past week, comments such as "they must of cracked my password".
How do you know that? The website looking after your coins could have failed it's responsibilities to protect it's user's accounts, plus you pay them fees?

*scratches head*

Maybe I missed the point somewhere here?

LOL! 

Yup stopped using as well. Step too far yesterday.
Their press release today just irritated me.

Alternatives to MtGox raised by another user here:
https://bitcointalk.org/index.php?topic=173245.0