Cut off temperature has nothing to do with fan speed. Its where the gpu is "turned off", for instance if the fan fails. I think its enabled by default, to set the temperature, just click G(pu) > C(hange settings) > GPU #> A(utomatic) > C(utoff) > set temperature. Has to be over 70C. Just stop your fan to test it.

I dont see the need. I wouldnt mind if it made it in to the ubuntu repo, but lets face it, any linux newbie having even easier access to install the client isnt going to solve any of the problems bitcoin faces. He still wont have an easy way acquire bitcoins or spend them. He is not even going to find it in the repo's unless he searches for it.
 The idea that the ubuntu software center would use bitcoins for commercial apps, well, I think thats a bit optimistic .

You cant.
To anyone unfamiliar with the new (or old) C64:
http://www.commodoreusa.net/CUSA_C64.aspx

There is no standard PCI-e expansion slot, nor even room for a powerful GPU, let alone a powerful enough PSU. Dont bother asking, it cant be done.

btw.. $999? For an Atom based all in one, seriously? That makes Apple look like a bargain!


Download the litecoin client, it has a miner app built in. There are faster miner apps, but it will get you started:
http://litecoin.org/

Then sign up for a pool. Until DrHaribo supports litecoin mining on bitminter, I would suggest this one:
http://pool-x.eu/index

And to trade litecoins for bitcoins, use any exchange that supports it, like
https://btc-e.com/exchange/ltc_btc

No. Sorry to say it, but your hardware is simply inadequate for bitcoin mining. CPU mining is useless with any cpu, even with a 6 core Core i7 its a complete waste of time, never mind with an Atom. I am surprised your videocard supports OpenCL at all, Im guessing its not the onchip GPU but an nVidia ION? Either way, its almost as pointless. Anything other than relatively recent and mid/highend AMD videocards is pointless.

What I would suggest is mining Litecoins with the atom CPU. Litecoin uses an algorithm that does not benefit from OpenCL, so it can only run on cpus, and even with an Atom you will mine some at least. you can trade litecoins for bitcoins. Should make you a few bitcoins per month, rather than a few bitcoins per century .

Most of these scare stories on hot particles rely on a 30 year old widely discredited paper. For some perspective:


In summary: in very broad terms (within a factor of ~ ± 3) the results of a very large number of animal studies and a growing number of in-vitro studies are in agreement regarding the lack of evidence to support a significant hot particle enhancement factor.  Human evidence is limited but does not support any significant hot particle enhancement.  All of this is in stark contrast to the claims made more than 30 years ago, which fuelled so much concern, that this could be as much as 5 orders of magnitude.

http://www.cerrie.org/committee_papers/Paper_6-02.doc

If you like to read the full report, including data on leukemia as a result of nuclear bomb testing, have a look here:
http://www.cerrie.org/pdfs/cerrie_report_e-book.pdf

Humans have this irrational fear for radiation. I dont want to trivialize what happened in Japan, but the idea that its life threatening to people across the globe is ridiculous. Breathing "5 hot particles" is probably about as dangerous as eating a banana.

Did you copy a persistence file to the stick? Also when booting, by default I believe it boots in to a regular, non persistent mode.

Persistent means just that; your changes are permanent. However, at least with regular ubuntu live sticks, not everything is persistent. For instance updating your drivers will not. Not sure if that was changed in linuxcoin. But for sure any apps or scripts you put in your home folder will be kept.

Meh, for the average idiot, what AVG is doing may not be so bad.  If you knowingly installed cgminer, you will probably know its safe, if you dont know what it is, you are likely a victim of a trojan.  That warning AVG gives is actually fairly accurate, its potentially an unwanted program users should be made aware off.

Here is what I do; register at an exchange that trades namecoins, like
https://btc-e.com/

Generate a namecoin deposit address, enter that in your bitminter account settings. That way all your namecoins are transferred to the exchange where you can sell them for bitcoins or USD.

sounds like a lot. Im getting 369 @900 Mhz using cgminer.

Pure scare mongering. Without saying what particles and how big, its utterly meaningless but, 10 "particles" per day of anything is ridiculously small. One could call natural uranium particle a "hot particle" but its abundant in our environment.  UK Health and Safety Executive regulations restrict long-term workplace air concentrations of soluble uranium to 0.2 mg per cubic metre (!). Make an estimate of how big that "hot particle" is and how much you breath in 24hr and do the math. And lets not mention what an average Iraqi (or US soldier in Iraq) inhales every day in the form of depleted uranium dust.

And in the short term chances of a small pool doing far better than the big pools are the same as doing worse. How much did you make in september and october? Past month was terrible, but youve already had the bad luck, switching to another pool now cant undo that, it can only consolidate your loss with almost no chance of making up for it.

Anyway, its your call of course.

A (theoretical) infinitely large pool has no variance and is almost completely predictable. If you switch to such a pool after a stroke of bad luck at a small pool like ours, you will never make up for the bad luck youve already had. If you stick with the unlucky smaller pool with higher variance, its only a matter of time before the bad luck averages out.

What on earth makes you think all math is the same or that it is memory bound?
For a start there is quite a fundamental difference between floating point and integer math. The simple truth is that AMD cards have 2-3x more ALUs than nvidia cards and can therefore process 2-3x as many 32 bit integer calculations per clock. Another simple truth is that SHA hashing (and many other similar cryptographic functions) is greatly sped  up by rotate right  register operations. AMD cards have a dedicated 1 cycle hardware function for this, nvidia does not and requires 3 clock cycles for this.

Memory bandwidth or capacity is absolutely a non issue for hashing. Miners clock the memory as low they can to save power consumption and even to speed up mining (!) and bitcoin mining takes like a few megabyte of vram. Anything more is wasted for mining.

Please get a clue.

Sounds like we have another nvidia fan boy that thinks all bitcoin miners are amd fanboys.

Its really simple, AMD cards have a different architecture that happens to be massively better for bitcoin mining; they have many more but much simpler shaders than nvidia cards (which have fewer, but more complex). For games these different approaches tend to be competitive, for floating point math, nVidia is typically far ahead, but for simple integer math like bitcoin mining, AMD is the obvious choice.

Ive had it again today. It does seem related with bittorrent which was running overnight. Now you might expect the cause to be in the router (some routers do not cope well with bittorrent), but also this time, restarting the router didnt solve it. I had to restart all my instances of cgminer.

well "dumbass" in that case your post still doesnt make sense since a 5870 comes in both 1 and 2GB versions, and 5870x2 with 2x2GB == 2x 5870 2GB in crossfire.

I know exactly how you feel, and I even pointed one of my machines to another pool for a while. But then I thought it through.. the bad luck already happened. Switching to a bigger pool now just solidifies that bad luck with no chance of reversing it,  as you'll miss out when the luck changes.  It would be smarter to switch to a larger pool after we had a lucky streak.

Not sure Im understandig you correctly, but all nearly PSU's are just rebranded OEM products. You can find the oem here:
http://whirlpool.net.au/wiki/psu_manufacturers

It scares the crap out of me too. But Im still pro nuclear. Im just not pro building nuclear reactors on earth quake and tsunami prone coasts when the reactor is somehow designed in such a way that a flooding cuts off its electricity supply. I still cant wrap my head around that. As I understand it (but correct me if Im wrong), the only real problem was powering the pumps.  How hard can it be to put some generators in a shelter that can withstand just about anything?