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Bitcoin Discussion Thread Part 2

USMCGrunt said:
Ive been fighting my new mining rig build all day. Got the parts installed by 2 and its now 11pm. Everytime I go to enable crossfire I get a BSOD and its really unstable with all four cards installed. I've reinstalled windows nearly half a dozen times....just finishing up the last round going with the bare basics and adding piece by piece to either break the cycle of bullshit or find the broken link...hopefully I can get it mining tonight....
Click to expand...

Don't use Crossfire if you're mining. That will usually result in BSOD, freeze, or other bug.
 
Zink said:
Most newer cards disable voltage control. Many brands disabled voltage control on model numbers that had it at launch. From what I've seen there usually isn't any easy bios update to get voltage control back.
Click to expand...

That sucks. I bought the exact same card thinking they would work the same. XFX R7950. Still don't know which LTC pool is better to go with. Setup at coinotron, notroll, and ozcoin. Can't get ozcoin to work though.
 
SolidBladez said:
Don't use Crossfire if you're mining. That will usually result in BSOD, freeze, or other bug.
Click to expand...

Well...the cards say they are disabled in CCC...will they still kick in when I start mining? Last time I got to that point, it would just BSOD when I tried launching GUIMiner...not even start mining, just start the program....im nearly there again....Windows updates take a ridiculous amount of time...
 
USMCGrunt said:
Well...the cards say they are disabled in CCC...will they still kick in when I start mining? Last time I got to that point, it would just BSOD when I tried launching GUIMiner...not even start mining, just start the program....im nearly there again....Windows updates take a ridiculous amount of time...
Click to expand...

I just put 2 7950's in today. Not in crossfire. cgminer just works, and you can change the intensity on each card in cgminer and save your config. Here is my cgminer.conf file, that has been stable for me for the last couple of hours after finally getting things working.

{
"pools" : [
{
"url" : "http://notroll.in:6332",
"user" : "travanx.1",
"pass" : "12345"
}
]
,
"intensity" : "13,18",
"vectors" : "1,1",
"worksize" : "256,256",
"kernel" : "scrypt,scrypt",
"lookup-gap" : "0,0",
"thread-concurrency" : "21712,21712",
"shaders" : "1792,1792",
"gpu-engine" : "0-850,0-850",
"gpu-fan" : "0-60,0-60",
"gpu-memclock" : "1250,1250",
"gpu-memdiff" : "0,0",
"gpu-powertune" : "0,0",
"gpu-vddc" : "0.962,0.962",
"temp-cutoff" : "100,100",
"temp-overheat" : "100,100",
"temp-target" : "100,100",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "6",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
 
I don't know which pool is good at this point after using 3 of them. Ozcoin mined too slowly, notroll was mining fast and then the operator said it was giving double credit by mistake - it ran out of ltc, the operator took about 25% of everyone's stash there even if the stash held coins mined way before the double payout (some people lost dozens of coins) and since it is out of ltc people are having a hard time withdrawing the coins they have left. I then switched to coinotron and now its website is unavailable....
 
I think the guy who set up notroll was simply trying to be ironic with the name. That pool has been about as stable as a schizophrenic on bath salts. It seems a good LTC pool is hard to find. You can try give-me-ltc.com and ltc.kattare.com. Coinotron has actually been the most reliable, but the problem I have with it is that it under reports my KH/s by a significant amount. The KH/s on the site is simply an estimate based on the time it takes for you to solve a share + the difficulty, so it could be Coinotron's estimate is simply "off", as it actually over reports part of the time. But most of the time it's under. Kattare will give me worker not found errors and give-me-ltc seems to stall out my workers frequently sometimes without even producing an error. ? If anyone finds a good LTC pool post it. I recommend using a backup like below.

USMCGrunt said:
Well...the cards say they are disabled in CCC...will they still kick in when I start mining? Last time I got to that point, it would just BSOD when I tried launching GUIMiner...not even start mining, just start the program....im nearly there again....Windows updates take a ridiculous amount of time...
Click to expand...

Abandon GUIMiner for now, go with straight CGMiner. Start CGMiner from command prompt with a string like this (this uses Coinotron as primary and give-me-ltc as backup):

Code: 
cgminer.exe --scrypt -o stratum+tcp://coinotron.com:3334 -u [username] -p [password] -o http://pool.give-me-ltc.com:8080 -u [username] -p [password] --gpu-platform 0 -d 0 -w 256 -v 1 -I 6 -g 1 -l 1 --thread-concurrency 8192 --failover-only
type "cgminer -n" to find which platform it's detecting as the AMD cards. On some systems the IGP will be detected as 0 and AMD as 1, so change "gpu-platform".

Add new command windows one by one starting each card by changing "-d 0" to "-d 1" etc, and change your worker username/pw so each card is working on a separate worker. If you get to a point where card number three or four crashes the computer, you could be running into power supply issues, or it could be that one of the cards simply sucks. Running all the cards in seperate threads will allow you to fine tune the intensity to each card letting you manage temps/performance per card. Change the intensity by change the "-i" setting. 18 is usually about max.

CCC showing crossfire disabled is fine, just make sure all the cards show up under Control Panel>Device Manager>Display Adapters.
 
Fooshnik said:
I think the guy who set up notroll was simply trying to be ironic with the name. That pool has been about as stable as a schizophrenic on bath salts. It seems a good LTC pool is hard to find. You can try give-me-ltc.com and ltc.kattare.com. Coinotron has actually been the most reliable, but the problem I have with it is that it under reports my KH/s by a significant amount. The KH/s on the site is simply an estimate based on the time it takes for you to solve a share + the difficulty, so it could be Coinotron's estimate is simply "off", as it actually over reports part of the time. But most of the time it's under. Kattare will give me worker not found errors and give-me-ltc seems to stall out my workers frequently sometimes without even producing an error. ? If anyone finds a good LTC pool post it. I recommend using a backup like below.



Abandon GUIMiner for now, go with straight CGMiner. Start CGMiner from command prompt with a string like this (this uses Coinotron as primary and give-me-ltc as backup):

Code: 
cgminer.exe --scrypt -o stratum+tcp://coinotron.com:3334 -u [username] -p [password] -o http://pool.give-me-ltc.com:8080 -u [username] -p [password] --gpu-platform 0 -d 0 -w 256 -v 1 -I 6 -g 1 -l 1 --thread-concurrency 8192 --failover-only
type "cgminer -n" to find which platform it's detecting as the AMD cards. On some systems the IGP will be detected as 0 and AMD as 1, so change "gpu-platform".

Add new command windows one by one starting each card by changing "-d 0" to "-d 1" etc, and change your worker username/pw so each card is working on a separate worker. If you get to a point where card number three or four crashes the computer, you could be running into power supply issues, or it could be that one of the cards simply sucks. Running all the cards in seperate threads will allow you to fine tune the intensity to each card letting you manage temps/performance per card. Change the intensity by change the "-I" setting. 18 is usually about max.

CCC showing crossfire disabled is fine, just make sure all the cards show up under Control Panel>Device Manager>Display Adapters.
Click to expand...

no way to do backup with guiminer?
 
This is frustrating to no end....im going on 14 hours trying to get this system stable. Anytime I try to open anything that utilizes the GPUs, the thing just sits there for about 5-8 seconds without doing anything and then BSODs with atikmpag.sys....
 
USMCGrunt said:
This is frustrating to no end....im going on 14 hours trying to get this system stable. Anytime I try to open anything that utilizes the GPUs, the thing just sits there for about 5-8 seconds without doing anything and then BSODs with atikmpag.sys....
Click to expand...

is it OCd?
 
USMCGrunt said:
This is frustrating to no end....im going on 14 hours trying to get this system stable. Anytime I try to open anything that utilizes the GPUs, the thing just sits there for about 5-8 seconds without doing anything and then BSODs with atikmpag.sys....
Click to expand...

sounds like a bad card? try 1 card at a time?
 
Not even trying to OCanything, just trying to get it up and running from out of the box. I think its a bad motherboard. I can get it to work with two cards but if I put a third in, I get a BSOD. Ive tried a couple (but not all) combinations of slots and swapped out cards. I am also getting the message "display driver has stopped working but has been recovered" after mining with the cards for about 5 minutes or so. I've got a custom profile on the fans so that the temps don't break about 70c according to trixx. What do you guys think...motherboard?
 
robble said:
I don't know which pool is good at this point after using 3 of them. Ozcoin mined too slowly, notroll was mining fast and then the operator said it was giving double credit by mistake - it ran out of ltc, the operator took about 25% of everyone's stash there even if the stash held coins mined way before the double payout (some people lost dozens of coins) and since it is out of ltc people are having a hard time withdrawing the coins they have left. I then switched to coinotron and now its website is unavailable....
Click to expand...

I feel ya on this. Maybe we should start our own pool?
 
Mining with ltcmine.ru with no issues, pretty sure they are affiliated with btc-e.com. Ordered a pair of 7950's for $300 ea, going to start replacing my older 58XX series cards with more powa.
 
J Macker said:
Alright guys, I'm finally hopping on. 2 coworkers are going to build some mining rigs too. We arranged to purchase a bunch of 7950's.

We're reading up a ton on this to try and learn the ropes. I think we're going to join coinotron and mine LTC. It's tempting though to mine some BTC (enough to buy an avalon) and then switch gpus to mining LTC.

I do have a question though; are all guilds trying to solve the same block simultaneously?
i.e., the days est to solve a block is basically the probability of solving a block within that timeframe?

I've seen some smaller guilds that took 400-600 hours to solve a block, where the btc guild is solving blocks in <20 mins.

Does it matter which pool or guild to join for profitability's sake or just for consistent payouts ?

Also, we're still undecided on BTC or LTC, but I'm thinking do a little of both. I worry if BTC is going to crash, but not sure. With the amount of horsepower we're going to have, we should be getting a few btc per week.
Click to expand...

Best get on it in a hurry. I suspect there's going to be a ridiculous difficulty spike soon with all of the fresh meat jumping on-board. And there's no logic at all to the price coins are at right now. I can't see how there won't be a market correction soon.
 
After not having mines in nearly two years, I saw the crazy spike in price, loaded up my wallet, spent almost 8 hours downloading previous blocks, and sold 2.36 coins from way back then for $546

:D
 
Parja said:
Best get on it in a hurry. I suspect there's going to be a ridiculous difficulty spike soon with all of the fresh meat jumping on-board.
Click to expand...
Or a 45% drop in price over the course of a few hours. 3-4months to see a return seems to be about the barrier needed to keep new people from signing on.
 
If you are going to try and buy this dip you best get your orders in, gox is lagging over 2000 seconds at this time
 
Fooshnik said:
Or a 45% drop in price over the course of a few hours. 3-4months to see a return seems to be about the barrier needed to keep new people from signing on.
Click to expand...

A good, if brutal, correction needed, yes.
 
some one has to be making a lot of $$$ right now look at how much the price is going up and down
 
Bitcoins sure are extreme... Lol...

Buy or not looks like a "coin" toss to me.... (yeah bad pun)

seriously, technical analysis kinda goes out the window with bitcoins...
 
All this makes me wonder if someone at AMD didn't have the bright idea to divert a little bit of their marketing budget into propping up BTC for a bit so they could get rid of a bunch of stock. Now that most 7950 and 7970's are pretty much sold out they don't have to keep it up any more. =)

This is truly crazy to behold though!

The last snapshot of MtGox I've got has:

Last Price: $150
High: $266
Low: $106
Weighted Avg: $216
 
Holy shit you weren't kidding. They are nearly sold out of every model lol. Add to that the fact that you can sell the game bundle which makes them a pretty sick value even after the recent price correction.

Edit: Plenty of 7950s though.
 
Lorien said:
Holy shit you weren't kidding. They are nearly sold out of every model lol. Add to that the fact that you can sell the game bundle which makes them a pretty sick value even after the recent price correction.

Edit: Plenty of 7950s though.
Click to expand...

Yeah sub $400 7970s, who woulda thought

Amazon still seems to have a good selection though
 
Now is a fine time to build a 7970 or 7950 rig. At current prices you get about $50 a week from each card mining and when that is over, folding and many other DC projects run great on AMD cards. The game codes are going for about $20 each on the FST forum so that is another $40 off each card.
 
LTC is about to take a nasty difficulty boost...allchains.info is estimating it to be at 283....a 20% increase.
 
Considering how many posts that I've seen from people claiming that they're putting together new 4x+ 79xx series mining rigs together, I'm surprised that it's not higher! Although I am a little surprised that the network hashrate hasn't really gone down at all with todays ridiculousness; maybe all the new miners are balancing out older ones that are shutting down? or nobody is backing down and the new guys just haven't gotten started yet...
 
no one is shutting down, we are back to the price of...what...4 days ago, lol

besides Avalon is delivering ASIC hashpower, network hash will continue to grow in excess of 2%/day for the foreseeable future IMO
 
I was looking at putting an extra computer together just to mine litecoins. Any ideas what the most efficient setup would be for 3 video cards? PSU, MB, RAM, and video. Even if this has a week or so left to be decent, I wouldn't mind upgrading my PC and having a spare one around. And yeah I bet a few people like me who watched the beginning of BTC might jump in for a bit.
 
travanx said:
.... I bet a few people like me who watched the beginning of BTC might jump in for a bit.
Click to expand...

I know for one thing, i ain't makin the same mistake as i did with BTC and stop mining because i failed to see the long-term profitability potential of the currency.

If i had kept mining coins, even when they weren't "profitable", i'd be sitting on a serious pile of cash right now.

gogo long Litecoins!

edit: @travanx: get 7970s. They're not that much more expensive than 7950 models.
 
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