The plummeting hashrate is partially caused by what I consider a bug I noticed recently. When a pool lags, cgminer sets the clocks back to 157 Mhz. When the pool comes back or cgminer switches to a backup pool, it slowly ramps up the speed from the minimum configured. I see no need for that behavior.  It takes a few minutes before its mining back at full speed for no real reason.

If you planned on bridging that 200+ feet with wifi... good luck, particularly if there is like a dozen crappy USB sticks in those mining rigs. There are wireless solutions that work at such distances, but dont expect a typical home router to work reliably.

But cgminer already stores passwords in clear text and transmits them as such. Of course they are not important passwords (workers), but the same goes for protecting the API. Only an idiot would set the same password as for his email/facebook whatever. But then that idiot might be using that password for his workers already, so nothing changes there.

Wifi ought to be plenty good, I suspect even 3G tethering probably works.
What you will need is remote reboot, so customers can reboot the machines without anyone going there.

Biggest concern would be theft and fire though. So, access control, fire suppression..  Add to that air conditioning, backup power, and hey, you are building a datacenter like everyone else. I hear thats not so cheap .

On a small scale I guess it could work, for a few miners that trust you and that you can trust with not so much equipment that its a true drama when its lost. Anything beyond that, it becomes too risky or much more expensive than it could be worth IMO.

Im not going to post it a millionth time. The google cache page shows it pretty well.
Ive also given him my btc address a million times, but here it is again:
15ZPNczbVbmuP5XjnaBGNVVLSAaWRaPF62

Paying out 20BTC when you got 50BTC and owe 100BTC isnt going to do it though.

Im not entirely sure this belongs here; a feature requests for the API?

I would like to have password on the API. Its kinda dangerous to leave it open, someone could turn off the fans or whatever, and its extremely useful to have access to the API remotely

I would also like the possibility to manage pools via the API. Add, delete, enabe/disable pools. If thats already possible, then perhaps I misread the documentation.

I someone can make this happen, Ill toss you a coin.

129,484 shares according to google cache.

PPLNS, so not all is lost yet. Maybe we find 4 blocks in 4 hours now

BTW, out of curiosity, how much did you pay per share?

Actually, I never said what was on the PSU cables, and I assumed it to be different since I assumed the labeling on the wires to be correct.
But WTH, you are right, it says AWG 18 on the PSU cables as well, and they are at least 4x as thick!

THis is getting interesting. I can easily see someone cutting corners by using subpar wires, but who else than a producer of wires would actually forge those tiny numbers on the wire that no one ever reads? So it appears some shady supplier of wires ripped off whoever made those adapters, saving a few pennies worth of copper.

Doh!

BTW, I also checked my 2xmolex > PCIe adapters that work fine and it says AWG 20, which is supposedly thinner thatn AWG18. I havent cut them, but I assume they will indeed be thinner than the PSU cables (which are rather massive), but probably at least 2x thicker than the shoddy adapter even if the labeling suggests the opposite.

Im also thinking that whoever made the single molex adapter deliberately bought thicker wires to get away with 1 molex plug, but due to a scam he ended up getting wires that are woefully inadequate.


I had just finished soldering when the door bell rang and a brand new 850W was delivered. Hadnt expected delivery on saturday .

But knowing now that those supposed AWG18 cables really are far thinner than they should be, Ill just cut the connector again and throw it away.

Indeed, but it does say AWG 18, so you are saying that ought to do?

May have found the cause.
The left most 2 wires are from one of those burnt molex>pci-e adapters (and no, I didnt mess up stripping). The right 4 wires are from my PSU's 12V 4+4 pin.



I dont know how to measure the thickness or calculate how many amps those wires can carry, but that looks way too flimsy to me.  Outside diameter is the same though, so no way to tell unless you cut them.

Not sure I understand the problem, but having an external chain (bitcoin in this case) "approve" the dianna chain actually makes it much more flexible. At any point you could decide to switch to another vetting system, say when bitcoin withers away and litecoin becomes the next big thing.

Anyway, like I said, I have no clue what Im talking about, just airing some random thoughts that other people perhaps can turn in to usable ones .

Could you not have some hybrid approach where the dianna data is stored in a separate blockchain, but the blocks are "approved" in the bitcoin blockchain? So you wouldnt store anything in the bitcoin chain, other than a hash of the last known "approved" dianna block.
disclaimer: I have no idea what Im talking about

Oh its definitely not the best PSU; its an old coolermaster 450W that I salvaged. But it only has to power that 5870 (and a hdd to load the 5v).
Even so, rubbish PSU or not, why would the connector overheat  Voltage appears stable and the 5870 isnt complaining afaict; at least it runs stable, cool and is my best overclocker (does nearly 1.1 GHz at stock voltage). .I could imagine the PSU blowing itself up, but I see no reason for the connector to heat up.

OH well, I changed it so now it only has to power half that 5870 using a double molex adapter and Ill retire it next week.

In a word: electromigration.
You can slow the aging process by trying to reduce your temps. 77C is way above my comfort zone. Getting it down 10C will double your cards life expectancy.
If you have room for a triple slot cooler, I would consider buying one. Most of them are pretty universal, so if the card dies or becomes obsolete, just reuse it for another card.

FWIW, I just installed a Deepcool V6000 on an XFX 5870 @1 GHz with a dead fan.
I bought it for ~$30. Temps dropped from ~70C at deafening noise to 54C and you can not hear the thing with the supplied fans (fixed low speed, they dont connect to the videocard fan header and are therefore not variable, which I do find a problem, but it works well enough it seems).

You are using them on a 5850 right? What clock are you running them at? im running one at 900 the other at 850.

On a sidenote, as I was switching cards on a different rig the other day, I removed a 6pin PCIe plug (no adapter) from one of my older PSUs. It has  a white PCIe connector and it had a brown tint near one of the pins as well. Nothing too serious, but clearly it had gotten hot. This PSU was powering a 5870 @ 1 GHz.

So i began wondering if perhaps underpowered PSUs dropped voltage too much, increasing the amperage, but it measured 11.7V under load.

So Im not sure whats causing it with me   I do know I dont like it one bit.  And that I wish all connectors where white so you can actually see if something is getting too hot or has ever gotten too hot. There is no way to tell with these black connectors until its likely too late.

My new PSU cant arrive soon enough... though Im not sure this really is a PSU problem.

Rejection rate with GPUmax still seems a problem though. I briefly saw 18% on the current shift. Ouch. Im assuming its gpumax related since I had 0.0%

As I understood, the OP had made several such requests and got nothing. Maybe I misread that? Even so, fact is even now Zoutoung doesnt even want to say the country his business is registered in (let alone all the other thing his customers ought to know), that should raise red flags and alarm bells all over.

Dont get me wrong, I have no reason to assume he will scam anyone, but I cant see any reason why Zoutoung wouldnt put this information on his website either (AFAIK, he is legally obliged to in several countries, among them Germany). Instead we have a 17 year old wizzkid controlling what most likely is a small fortune in dollars and btc, perhaps more than anyone else in the bitcoin world, and we have no clue who he is, what company is running the show, nothing.

That he says he will say so soon is simply not good enough by any stretch.

Do we even know where its registered and under what name? I certainly dont.