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1  Other / CPU/GPU Bitcoin mining hardware / Re: Designing Bitcoin Case from the Ground Up on: July 01, 2011, 04:14:49 AM
http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/

Worth a look for rack case design, it's all in solidworks but I'm sure you could import it
2  Bitcoin / Pools / Re: Cooperative mining (2000GHash/s) on: July 01, 2011, 04:03:52 AM
Found my first block for the pool Smiley
3  Other / CPU/GPU Bitcoin mining hardware / Re: flashing a 6950 with 1GB using the 6970 with 2GB BIOS on: June 26, 2011, 08:45:09 PM
I have soldered a wire onto the BIOS chip to enable flashing and have flashed with a RBE modified BIOS. it has however made no difference to the performance of my sapphire 1G HD 6950 as I believe the extra shaders have been disabled when the chip was made.
4  Other / CPU/GPU Bitcoin mining hardware / Re: flashing a 6950 with 1GB using the 6970 with 2GB BIOS on: June 24, 2011, 05:15:24 AM
Hmm you will need to do some soldering to unlock that card
I have created an image with the info but can't upload a photo PM me and I'll send you it if you like
5  Other / CPU/GPU Bitcoin mining hardware / Re: Basic mining questions: PCIe x16,x8,x1, extenders, ASIC? on: June 18, 2011, 12:39:57 AM
No need to crossfire they should work fine separately but if using windows you may need dummy vga or dvi plugs for any card not plugged into a monitor
6  Other / CPU/GPU Bitcoin mining hardware / Re: 6950 dilemma - breaking 320 MH/s on: June 18, 2011, 12:23:40 AM
Running it in a linux box so haven't been able to try afterburner or anything, I will have a look for a signature from another 6950 does anyone know of one with higher than 840 peak GPU?
7  Bitcoin / Pools / Re: Cooperative mining (1.5Thash/s) on: June 17, 2011, 10:19:40 AM
Site and Mining working for me
8  Other / CPU/GPU Bitcoin mining hardware / Re: 6950 dilemma - breaking 320 MH/s on: June 16, 2011, 08:55:39 PM
I have a sapphire 1G 6950, it is the same no dual bios and bios is locked
I got the soldering iron out and hooked the Write Protect up to VCC and am able to flash the bios
However it appears the shaders are disabled on chip as it has made no performance difference.

I am still curious about modifying the GPU overclock limits by flashing but am a little reluctant due to having only one bios chip
Has anyone increased the limits by flashing?
9  Other / CPU/GPU Bitcoin mining hardware / Re: ATI underclocking memory under linux? on: June 16, 2011, 01:48:19 AM
Supa what type of card were you reflashing?
10  Other / CPU/GPU Bitcoin mining hardware / AMD Fusion - Llano GPU on: June 15, 2011, 11:51:03 PM
Hi All,
I've just read this article on ars http://arstechnica.com/business/news/2011/06/amd-launches-second-fusion-cpu-gives-glimpse-at-future-of-cpugpu.ars
I was wondering if this would be a useful CPU for bitcoin mining once it becomes available, they say it has 400 shader units which would surely be capable of quite a few MH/s

It seems that most miners don't bother with utilizing the CPU due to the KW/h vs MH/s problems but with a CPU being a necessary component would it be worth using one of these for a mining rig and gain that little bit of extra performance.
11  Other / CPU/GPU Bitcoin mining hardware / Re: 6970 cards / Maverick Ubuntu - no GUI after installing 11.5/2 drivers on: June 15, 2011, 01:02:10 AM
Haha can now finally post

PM'd this to walidzohair but thought I'd post it for the benefit of anyone else that was having issues

I had the same issue with a HD6950
It was unable to get EDID information from my 19" screen after installing the driver so it was trying to drive it at 1600x1200 resolution
So I used Ctrl+Alt+F1 to login to a command prompt
sudo nano /etc/X11/xorg.conf

Then added Modes "1280x1024" "1024x768" to the SubSection Display
1280x1024 is the resolution of my display 1024x768 was just for backup

So the section looks like this
SubSection "Display"
       Viewport    0 0
       Depth        24
       Modes "1280x1024" "1024x768"
EndSubSection

Obviously pick a mode that suits your screen save the xorg.conf and restart

If you are looking for any other clues you can scan the xorg log file but using something like
cat /var/log/Xorg.0.log |less

Hope it's helpful
13ykvUcaV1fxaHQVBWxLwt3XNQd5dHVgLG
12  Other / Beginners & Help / Re: don't use this website on: June 15, 2011, 12:54:05 AM
That's awesome, You would think that the early adopters of bitcoin would be a little internet savvy
13  Other / Beginners & Help / Re: Too late to start mining? on: June 13, 2011, 08:31:24 AM
It's all just a cost benefit thing. work out the cost and the benefit and if the cost out weights the benefit then yes it is too late
14  Other / Beginners & Help / Re: What's your favorite thing about Bitcoin? on: June 13, 2011, 08:28:00 AM
The international aspect buying stuff on the internet can be difficult when so many of the retailers are based in one country and you are based in another. It would be nice to see these boarders broken down by a common currency
15  Other / Beginners & Help / Re: Not buying bitcoin on: June 13, 2011, 08:23:51 AM
Care to elaborate on any of the problems you have had?
I'm sure there are people interested in making bitcoin more accessible
16  Other / Beginners & Help / Re: Newbie restrictions on: June 13, 2011, 08:20:27 AM
Yeah I've been reading the forums for weeks as guest but now want to post Sad should've read all the rules first
17  Other / Beginners & Help / Re: Why store Bitcoins remotely? on: June 13, 2011, 08:19:04 AM
Wonder how many bitcoins will get lost on flash drives...
18  Bitcoin / Pools / Re: Cooperative mining (500Ghash/s) on: May 31, 2011, 11:30:38 PM
I was seeing something similar on block 127833 it was showing a value then when I checked again it showed none, now the value has returned although I can't confirm if it remained the same.
I assume there is no issues with the system that will affect our confirmed returns?
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