So i've been screwing around with this and have not found a good solution to this yet. I'm using CGMiner as well and when I launch it, runs fine, fan ramps up (up to maximum eventually, settles card at 75C), 800-1000+ Khashs going strong. However, if I quit within CGminer, my computer just instantly restarts (segfault is the correct term, I think), no BSOD. If I close the window itself, the computer is okay, but the fan stays at max speed instead of ramping down with temps. @mertesn, are you experiencing anything similar? If not, where did you get the "client" that you're running cgminer through?
@Tushon how are you using CGminer, post your start-up script. I am guessing since the fan gets stuck at that setting you actually set your options from within the client instead of launch options, move it all to a bat with launch options.
Remove "--auto-fan". Turn on verbose logging and start working your intensity down, there might be errors thrown that aren't being written to the display.
Man if all of these AMD GPUs would be on our folding@home team they sure would help us out and all especially since a single 7950 does 90k+ ppd with the new client flags.
On eBay it looks like anywhere from $300 and up for auction value. Let's call it $1000 plus whatever I could get for the water blocks.
Thanks to a massive spike in mining, the difficulty rate has increased to the point where GPU mining without a large farming rig won't be profitable for much longer. Also LTC mining ASICs are on the horizon. Thus the experiment has ended and the GPUs were sold on eBay this morning for a few dollars more than what I paid for the setup. Add in the money made from mining and I've made a healthy profit
Someone explain this to me. I've read about it a little, but are the computing cycles used for mining utilized somewhere on the grid so they have an actual value to another entity so you are actually earning the virtual coin in some way? How does this work? How does it make any economic sense at all?
1) No. You're just hashing numbers. It's not like F@H where things that are done are actually useful. 2) They introduce artificial scarcity by making it harder to hash the numbers as more people get involved, and as more coins are mined. 3) Heh
{BTC|LTC|...} have value because people believe they have value, and because people believe that value will increase in the future**. It appears that the vast majority of people are using them as a very-high risk investment vehicle. BTC true believers think that BTC will become the currency standard in X years. At that time, their current investment of $RHODEISLAND will be worth $GERMANY, and let's not talk about what happens in between, or any possible drawbacks to having a currency that is:
While seeing benefits that they believe will not change: Anonymous* Distributed (until someone owns too much compute power) Unregulated (specifically untaxed)
*Anonymous: this is always touted as a benefit to BTC, until someone gets ripped off, then they want their money back. Also, this is not necessarily true, as if you're buying goods, you have to ship it somewhere. Ask the drug dealers from the silk road how well it worked for them.
**It appears that right now, BTC is being used mostly as a speculative investment, but some people want it to be a currency.
and imo the most telling thing right now about BTC is that the vast majority of people that accept it for legit payments aren't interested in holding on to it. For example, in the tesla purchase, they accepted $TESLA worth of BTC (with a guarantee that the could sell them for $TESLA USD), sold them for $TESLA worth of USD, then gave the guy the car.
They didn't then use the $TESLA BTC to buy parts from their suppliers, because why would they want BTC that they couldn't use to pay their workers/suppliers.
@Shwaip - If I could give you a double helpful I would.
Fascinating, so it's really some guy's dream to overthrow the central bank's with play money or a terrorist plot to get everyone to overload the power grid...
I'll just sit on the sidelines and watch. Baseball cards and comic books are probably a better long term investment.
Comments
825/1375 = 571 Khash
1005/1675 = 684 Khash
As for the restarts, I haven't seen that. Same with the fans, but I'm water cooling the GPUs.
[code]
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
.\cgminer-3.7.2-windows\cgminer.exe --scrypt -o stratum+tcp://us.ltcrabbit.com:3334 -u username -p password -w 512 -g 1 --auto-fan --thread-concurrency 32765 --intensity 20
[/code]
the settings i chose were a combination of several others recommended for the 290x.
Thoughts?
2) They introduce artificial scarcity by making it harder to hash the numbers as more people get involved, and as more coins are mined.
3) Heh
{BTC|LTC|...} have value because people believe they have value, and because people believe that value will increase in the future**. It appears that the vast majority of people are using them as a very-high risk investment vehicle. BTC true believers think that BTC will become the currency standard in X years. At that time, their current investment of $RHODEISLAND will be worth $GERMANY, and let's not talk about what happens in between, or any possible drawbacks to having a currency that is:
Unregulated
"Anonymous*"
Deflationary
Highly Volatile
While seeing benefits that they believe will not change:
Anonymous*
Distributed (until someone owns too much compute power)
Unregulated (specifically untaxed)
*Anonymous: this is always touted as a benefit to BTC, until someone gets ripped off, then they want their money back. Also, this is not necessarily true, as if you're buying goods, you have to ship it somewhere. Ask the drug dealers from the silk road how well it worked for them.
**It appears that right now, BTC is being used mostly as a speculative investment, but some people want it to be a currency.
They didn't then use the $TESLA BTC to buy parts from their suppliers, because why would they want BTC that they couldn't use to pay their workers/suppliers.
Fascinating, so it's really some guy's dream to overthrow the central bank's with play money or a terrorist plot to get everyone to overload the power grid...
I'll just sit on the sidelines and watch. Baseball cards and comic books are probably a better long term investment.