Executed a trade with Nolo last night:  https://bitcointalk.org/index.php?topic=201670.0

Thank you!  It was a pleasure dealing with you.

Nice break-down, I wasn't aware that the prices were so low.  I think I'll just wait for them to hit an exchange before selling (or bring them with me to the grave if that never happens).

I will raise my offer to 3.75 BTC

Bump. Still looking to buy some XRP.

I have 125 RYC and 63.99 YAC that I'm looking to sell for LTC.  PM me or post in this thread if you're interested.  My policy is you first, unless you have a documented history on this forum of RECENT trades.

I've sold BTCs and BTC-e coupon codes for Amazon GCs but only with people I trusted.  I tend to trust the physical cards more than the digital codes, but I don't think those are a sure thing either.  Here is the text directly from the Amazon gift card email that worries me (only if trading with untrusted):


So, basically the recipient is liable if the sender does a charge-back.

I'm looking to stockpile some ripple for a rainy day.  My offer is 1 BTC for every 7500 ripple you have.  

 - If you're a trusted member (i.e. have links to trades you've completed recently), I will send first.
 - Otherwise, you send first.
 - If you would like to trade for something other than BTC, send me a PM and we can discuss the details.

For giving rep, please post details of our trades here: https://bitcointalk.org/index.php?action=trust;u=80188   I will do the same if you PM me your rep link after our trade is done.


Edit: 6/06/2013 - Adjusted price

Are these physical cards or digital codes? 

I'm not sure how easy it is for either to be charged-back, but I put more faith in an unscratched physical card since reading the disclaimer for the digital code, which contains the following:


I've traded BTC for Amazon GCs before, but I dealt with people I trusted.

1st block found!

Pool hashrate: 103824 KH/s ~Nice!

Anyone have an updated list of working nodes?  I have the following in my config and can't keep a live connection:
addnode=71.77.233.192
addnode=216.58.118.2
addnode=123.21.255.137
addnode=110.7.27.244
addnode=37.200.37.224
addnode=174.50.248.26
addnode=72.222.208.81
addnode=94.112.205.167
addnode=124.171.52.180
addnode=123.21.255.137
addnode=110.7.27.244
addnode=94.112.205.167
addnode=174.50.248.26
addnode=72.222.208.81

The client initially connects to 8 nodes, then it slowly drops down to 0 connections.

Are you getting hardware errors?  You can check in the GPU summary of cgminer.  It will look something like this:

GPU 0:  75.0C 3135RPM | 663.3K/661.3Kh/s | A:1178 R:22 HW:0 U:16.73/m I:19

Also can you post you cgminer config file or the command line options you use? 

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Thanks OP!

This is a great idea about the posting the reserves.



Nice...I can't wait to get mai moniez! 

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Thanks!

Yes, I use 2 powered risers, 2 cards run off the board.  You could probably run 3 unpowered and 1 powered, but I had an extra powered laying around so that's what I used.

I see several people reporting incredible performance efficiencies in this thread and I want to know your secret.  I'm interested in what settings you are running.

Here's what I have:
- ASRock Extreme 4
- Sempron 145
- 4GB RAM
- USB Flash Drive
- PC Power and Cooling Silencer MKIII 1200 (Platinum rated)
- 4x Sapphire 2L 7950s

I flashed my cards to undervolt them to 1.09V (using Sapphire Twin-X bios).  Stock bios was 1.25V unlocked, but needed to flash for Linux.
I run BAMT with CGMiner.
I currently run them at 1050 core/1500 memclock (.7 relation seems best) => ~625kh/s each and my kill-a-watt reads around 950w

Estimating high, lets say everything except the GPUs pulls 100 watts (i.e. CPU/RAM/USB/Mobo), that means each of my cards is pulling roughly 193.5w (@92% PSU efficiency).  Using the same estimation of 100w (CPU/RAM/HDD/Mobo), I see people with setups pulling 155-175w (a generous estimation of 90% PSU efficiency) per card and getting better hash rates on top of that.

If someone is able to help me increase my efficiency to these numbers, I will gladly send some LTC your way for your help!

If anyone has a working BAMT config running 7950/7970s can you post your setup?

I'm curious of the following:

- Driver version
- SDK version
- CGMiner version
- CGMiner config file/command line options you use  (mainly intensity, thread-concurrency and gpu-threads)

I find if I use lower intensities I don't have 100% CPU usage, but I get really low hash rates.  I've also been installing different driver versions to no avail.

So I was previously running 5970s but just got a bunch of 7950s and want to run BAMT like I had with my old setup.   I installed 13.1 drivers and 2.7 SDK and also rebuilt CGMiner using 5.0 ADL.  I removed the old SDK and uninstalled the old drivers prior to installing the new. 

So here's the problem....when I have one card installed I get 550+ kh/s (stock settings) which is normal, but when I install a second, the has rate on the second is only around 400kh/s.  I've noticed that the CPU usage shoots up on 2 cards and the activity on the second card is only 60%.

I have 8GB ram so I don't think that is the problem and the cards are running super cool (under 70C).
I also export the DISPLAY, GPU_USE_SYNC_OBJECTS and GPU_MAX_ALLOC_PERCENT environmental variables prior to running CGMiner, so that can be eliminated as a cause as well.

If anyone has run into this before, any help would be appreciated!

Thanks to both of you for a quick and smooth transaction.  Hope to do business with you in the future!