Bitcoin Forum
October 27, 2020, 09:47:08 PM *
News: Latest Bitcoin Core release: 0.20.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1] 2 »
1  Bitcoin / Bitcoin Discussion / Re: Use Google Spreadsheets to automatically keep track of your wallet balance on: June 28, 2011, 12:54:02 AM
You'll want to change the formula for column E to: =Value(Substitute(Substitute(Index(ImportHTML(C3,"list",1),3), "Received BTC: ", ""), " ", ""))

Blockexplorer uses a space instead of a comma so balances greater then 1000 will show up like 1 000. The space needs removed for the Value function to work.
2  Bitcoin / Bitcoin Discussion / Re: ALL mtgox password has been compromised, change asap, everywhere you used it on: June 19, 2011, 08:38:17 PM
This is why all websites should be using bcrypt for password hashing. It's an adaptive hashing function that can be made to perform slower over time as computers get faster. Authentication on websites does not require a fast hashing function for just this reason.

I use 1Password for password management. It was Mac only until recently - there is now a Windows version out there. I had to double check whether I was following my own best practices but I did use a unique password for mtgox.
3  Economy / Economics / Re: Maximum value of a single bitcoin on: May 13, 2011, 03:19:12 PM
World monetary mass estimated by the International Monetary Fund in 2009 was 4 trillion dollars or 4,000,000,000,000,000,000 $

4,000,000,000,000,000,000 / 21,000,000 btc = 190 billions dollars for 1 btc
 Grin

You've got a tad too many zeros in there. 4 trillion / 21 million is around $190,000 per bitcoin.
4  Bitcoin / Mining / Re: Experience with Ubuntu 10.4 + Radeon 6990? on: May 05, 2011, 12:04:44 AM
Have you tried phoenix?
5  Bitcoin / Mining / Re: Experience with Ubuntu 10.4 + Radeon 6990? on: May 04, 2011, 03:47:18 PM
CLInfo moved into a different directory in SDK 2.4 but if you search around you'll find it. I recommend Catalyst 11.3 and SDK 2.3 (I also have a 6990 running Ubuntu 10.10).
6  Bitcoin / Mining / Re: Mining difficulty to cross 1 million when? on: April 30, 2011, 03:51:28 AM
It looks like some blocks were found in rapid succession right after the difficulty change which caused that high estimate.
7  Bitcoin / Mining / Re: Mining rig randomly shuts off? on: April 30, 2011, 02:42:03 AM
Single rail or multi rail power supply? If multi rail make sure you spread the load across all the available PCIE rails.

This post helped me tremendously. I have dual 6990s and an HX1000 power supply. The 6990s have an over-clock switch that raises the voltage and produces an extra 15% to my hash rates. It was causing the computer to freeze after a couple of minutes and I figured it might be overloading the power supply. Sure enough I didn't have the two cards spread evenly between the rails (in the case of the HX1000, it doesn't have rails but is kind of like 2 500 watt power supplies bundle together).

I have the same power supply and even with a single 5970 it is still recommended that one spreads the load across the two 12v rails. I'm amazed the PSU handled two 6990 on the same rail. However when I think of it I am not surprised as I've read somewhere that the HX1000W is conservatively rated (ie it can deliver more than 1000W if pushed) and it really a 1200W PSU sold as 1000W (designed by an OEM called CWT)



One of the cards was split between the rails, so one rail had 3 of the 4 PCIe cables plugged into it, and the other rail had 1. Even still, the power supply was pulling over 800 (I believe close to 900) watts from the socket.

Nice, you got yourself one serious space heater there Smiley However I'd be concerned running the PSU at 80 to 90% rated capacity. I think that will shorten its lifespan.

Did you also try to underclock the memory on those cards? You can save 20-40 watts per card doing so.


Hey btw, checkout this picture to see how the rails are distributed on the HX1000W:

http://forum.corsair.com/forums/showthread.php?t=70317



No, I haven't had much luck figuring out how to lower mem speeds on linux. I think that's about the only thing left to get this computer running optimally.

I found that rail diagram when your initial post got me on the right track.
8  Economy / Marketplace / Re: The fastest HD 69xx miner. 350 BTC. on: April 30, 2011, 02:33:09 AM
I lowered the price from 400 BTC to 350 BTC.
hdminer is currently the fastest miner for the HD 6990 at 708 Mhash/s at stock 830 MHz clock, compared to Phoenix's 650 Mhash/s, a difference of 9%.

Future reply to the random guy who will reply "but I get 7xx Mhash/s with $MINER when overclocking" -> I said at stock clocks !

Just for reference, I get 714 Mhash/s at 830 MHz clock running phoenix 1.3 with VECTORS=on AGGRESSION=10 WORKSIZE=128 BFI_INT. At 900 MHz I get 774 Mhash/s.

EDIT - Actually, that is with the overclock switch turned on. Otherwise, at stock speeds, I only get 668 MHash/s. Could you post numbers for these other scenarios?
9  Bitcoin / Mining / Re: Mining rig randomly shuts off? on: April 30, 2011, 02:23:41 AM
Single rail or multi rail power supply? If multi rail make sure you spread the load across all the available PCIE rails.

This post helped me tremendously. I have dual 6990s and an HX1000 power supply. The 6990s have an over-clock switch that raises the voltage and produces an extra 15% to my hash rates. It was causing the computer to freeze after a couple of minutes and I figured it might be overloading the power supply. Sure enough I didn't have the two cards spread evenly between the rails (in the case of the HX1000, it doesn't have rails but is kind of like 2 500 watt power supplies bundle together).

I have the same power supply and even with a single 5970 it is still recommended that one spreads the load across the two 12v rails. I'm amazed the PSU handled two 6990 on the same rail. However when I think of it I am not surprised as I've read somewhere that the HX1000W is conservatively rated (ie it can deliver more than 1000W if pushed) and it really a 1200W PSU sold as 1000W (designed by an OEM called CWT)



One of the cards was split between the rails, so one rail had 3 of the 4 PCIe cables plugged into it, and the other rail had 1. Even still, the power supply was pulling over 800 (I believe close to 900) watts from the socket.
10  Bitcoin / Mining / Re: Mining rig randomly shuts off? on: April 30, 2011, 02:02:35 AM
Single rail or multi rail power supply? If multi rail make sure you spread the load across all the available PCIE rails.

This post helped me tremendously. I have dual 6990s and an HX1000 power supply. The 6990s have an over-clock switch that raises the voltage and produces an extra 15% to my hash rates. It was causing the computer to freeze after a couple of minutes and I figured it might be overloading the power supply. Sure enough I didn't have the two cards spread evenly between the rails (in the case of the HX1000, it doesn't have rails but is kind of like 2 500 watt power supplies bundle together).
11  Bitcoin / Mining software (miners) / Re: hashkill - testing bitcoin miner plugin on: April 30, 2011, 12:40:35 AM
No 32-bit binary?
12  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 27, 2011, 01:55:54 AM
I'm able to ping mining.bitcoin.cz from all my machines, but workers will only connect from one. I haven't tried accessing from a browser since I'm usually connected via SSH.

... what about the port forwarding to 8332 ... how does it get to both machines from the firewall/router? .. (assuming you have one)

I'm not doing any port forwarding.
13  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 27, 2011, 01:02:06 AM
I'm able to ping mining.bitcoin.cz from all my machines, but workers will only connect from one. I haven't tried accessing from a browser since I'm usually connected via SSH.
14  Bitcoin / Mining / Re: Can't access second core with Ubuntu 10.10 + 6990 on: April 27, 2011, 12:48:37 AM
When I flip the switch my mhases/core go up to match yours but the system freezes after a minute or two. When I reboot I get a HyperTransport flood error. I'm not sure if it's the motherboard or the video cards causing problems. I'll have to play around with it some more as it's more then a 10% increase in hash rate.
15  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 27, 2011, 12:30:05 AM
I'm having trouble connecting with more then 1 worker. I have four instances using the same worker on one computer - they are all working fine. A worker on a different computer won't connect. If I turn off the other worker it will.

This just started last night.
16  Bitcoin / Mining software (miners) / Re: [MINER] Phoenix - New efficient, fast, modular miner **BFI_INT support!** on: April 27, 2011, 12:00:54 AM
The problems I was having with slushes pool have gone away and it will now connect. I noticed this was happening with other miners as well so I don't think this was ever anything specific to Phoenix.
17  Bitcoin / Mining / Re: Can't access second core with Ubuntu 10.10 + 6990 on: April 26, 2011, 09:00:05 PM
If I increase aggression or worksize beyond 10 and 64 my rates go down. I'm maxing out at around 337 mhashes/core at 900 mhz clockspeed. What is you memory speed at? What do you mean by oc switch?
18  Bitcoin / Mining / Re: Can't access second core with Ubuntu 10.10 + 6990 on: April 26, 2011, 07:31:21 PM
BTW, what settings are you using with your 6990s? I've found VECTORS=on AGGRESSION=10 WORKSIZE=64 FASTLOOP BFI_INT to work best with phoenix.
19  Bitcoin / Mining / Re: Can't access second core with Ubuntu 10.10 + 6990 on: April 26, 2011, 07:25:13 PM
I edited my xorg.conf manually to add that in and it's working now. I don't know why I didn't think to look that over before.

I did run aticonfig --initial --adapter=all multiple times.
20  Bitcoin / Mining / Re: Can't access second core with Ubuntu 10.10 + 6990 on: April 26, 2011, 06:53:26 PM
Also, here is my full xorg.conf.

Code:
Section "ServerLayout"
Identifier     "aticonfig Layout"
Screen      0  "aticonfig-Screen[0]-0" 0 0
Screen         "aticonfig-Screen[2]-0" 2560 0
Screen         "aticonfig-Screen[3]-0" 3200 0
EndSection

Section "Module"
EndSection

Section "Monitor"
Identifier   "aticonfig-Monitor[0]-0"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
EndSection

Section "Monitor"
Identifier   "aticonfig-Monitor[1]-0"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
EndSection

Section "Monitor"
Identifier   "aticonfig-Monitor[2]-0"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
EndSection

Section "Monitor"
Identifier   "aticonfig-Monitor[3]-0"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
EndSection

Section "Monitor"
Identifier   "0-DFP5"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
Option     "PreferredMode" "2560x1600"
Option     "TargetRefresh" "60"
Option     "Position" "0 0"
Option     "Rotate" "normal"
Option     "Disable" "false"
EndSection

Section "Monitor"
Identifier   "2-Default monitor"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
Option     "PreferredMode" "640x480"
Option     "TargetRefresh" "60"
Option     "Position" "0 0"
Option     "Rotate" "normal"
Option     "Disable" "false"
EndSection

Section "Monitor"
Identifier   "3-Default monitor"
Option     "VendorName" "ATI Proprietary Driver"
Option     "ModelName" "Generic Autodetecting Monitor"
Option     "DPMS" "true"
Option     "PreferredMode" "640x480"
Option     "TargetRefresh" "60"
Option     "Position" "0 0"
Option     "Rotate" "normal"
Option     "Disable" "false"
EndSection

Section "Device"
Identifier  "aticonfig-Device[0]-0"
Driver      "fglrx"
Option     "Monitor-DFP5" "0-DFP5"
BusID       "PCI:3:0:0"
EndSection

Section "Device"
Identifier  "aticonfig-Device[1]-0"
Driver      "fglrx"
BusID       "PCI:4:0:0"
EndSection

Section "Device"
Identifier  "aticonfig-Device[2]-0"
Driver      "fglrx"
Option     "Monitor-Default monitor" "2-Default monitor"
BusID       "PCI:7:0:0"
EndSection

Section "Device"
Identifier  "aticonfig-Device[3]-0"
Driver      "fglrx"
Option     "Monitor-Default monitor" "3-Default monitor"
BusID       "PCI:8:0:0"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device     "aticonfig-Device[0]-0"
DefaultDepth     24
SubSection "Display"
Viewport   0 0
Depth     24
EndSubSection
EndSection

Section "Screen"
Identifier "aticonfig-Screen[1]-0"
Device     "aticonfig-Device[1]-0"
Monitor    "aticonfig-Monitor[1]-0"
DefaultDepth     24
SubSection "Display"
Viewport   0 0
Depth     24
EndSubSection
EndSection

Section "Screen"
Identifier "aticonfig-Screen[2]-0"
Device     "aticonfig-Device[2]-0"
DefaultDepth     24
SubSection "Display"
Viewport   0 0
Depth     24
EndSubSection
EndSection

Section "Screen"
Identifier "aticonfig-Screen[3]-0"
Device     "aticonfig-Device[3]-0"
DefaultDepth     24
SubSection "Display"
Viewport   0 0
Depth     24
EndSubSection
EndSection
Pages: [1] 2 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!