Bitcoin Discussion Thread Part 2

Parja said:
Damn, next difficulty is estimated to be about a 14% increase. Hard to believe people are still bringing that much more hardware online.
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Jesus.. that sux.. thatll put me under 1BTC a day, and I have 8 cards running..
 
Parja said:
Damn, next difficulty is estimated to be about a 14% increase. Hard to believe people are still bringing that much more hardware online.
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People are expecting fresh demand created by the opening of Ruxum, the new exchange created by an ex-citigroup team (currently in private invite only beta). Add to that the recent media exposure we've had and the relative stability the currency has been enjoying, it's somewhat expected to see more people join in.
 
Parja said:
Damn, next difficulty is estimated to be about a 14% increase. Hard to believe people are still bringing that much more hardware online.
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July has been pretty flat really

RHUXy.png


Definitely not the 40% weekly predicted in the past.
 
Got my open box 6970........there's a heat pipe missing! They have 4 large heat pipes, mine only has 3 with the slots open for the 4th one. WTH. It's a powercolor. I guess I need to contact the manufacturer.
 
flogge said:
Got my open box 6970........there's a heat pipe missing! They have 4 large heat pipes, mine only has 3 with the slots open for the 4th one. WTH. It's a powercolor. I guess I need to contact the manufacturer.
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If it's not the factory super clocked one it only comes with 3.
 
flogge said:
Got my open box 6970........there's a heat pipe missing! They have 4 large heat pipes, mine only has 3 with the slots open for the 4th one. WTH. It's a powercolor. I guess I need to contact the manufacturer.
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So mine has an odd thing that if I leave it sub 960MHz I get 6950 performance.
959MHz on that card = ~330MH/s
960MHz = ~420MHz

Would be interesting to see what yours does.
 
Do these cards typically run over 100C? I had mine at stock clocks and it was running 101-103 celcius. I backed off the power and the clock speed to get temps that I'm used to seeing.
 
I've just started at this with my two xfx 6970s currently clocked at 900MHz. They're doing ~370Mh/s each with cgminer.

In slots 1 and 3 with the case open at fans at 100% they're running at 74 and 71C. Hope that helps.
 
Oneos said:
I've just started at this with my two xfx 6970s currently clocked at 900MHz. They're doing ~370Mh/s each with cgminer.

In slots 1 and 3 with the case open at fans at 100% they're running at 74 and 71C. Hope that helps.
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those things should be pulling 420-430

suggest reading back and getting the latest phoenix hack on
 
I'm still playing with it, but cgminer has been atleast the most consistent thus far. Running either of the kernels with phoenix resulted in varying between 300-350Mh/s.

I haven't gone through the entire thread, but are you speaking of the change to "'#define Ma(x, y, z) amd_bytealign( (z^x), (y), (x) )'? As that appears to be in the kernels which came with cgminer already.
 
I seem to be having trouble with guiminer, my boxes regularly do less than stellar MH/s and regularly have communication issues with BTCGuild though I guess it could be BTCGuilds fault. Is there another program similar to guiminer that's really easy to use without having to read pages of instructions? I really don't want to hit the console and type a lot of shit on six machines.
 
Oneos said:
I'm still playing with it, but cgminer has been atleast the most consistent thus far. Running either of the kernels with phoenix resulted in varying between 300-350Mh/s.

I haven't gone through the entire thread, but are you speaking of the change to "'#define Ma(x, y, z) amd_bytealign( (z^x), (y), (x) )'? As that appears to be in the kernels which came with cgminer already.
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If you're running headless try the params "-I 8 -k phatk" for starters. If you are using the machine for things other than mining cgminer may not be the best option.
 
Oneos said:
I'm still playing with it, but cgminer has been atleast the most consistent thus far. Running either of the kernels with phoenix resulted in varying between 300-350Mh/s.

I haven't gone through the entire thread, but are you speaking of the change to "'#define Ma(x, y, z) amd_bytealign( (z^x), (y), (x) )'? As that appears to be in the kernels which came with cgminer already.
Click to expand...

Credit to Lorien

http://forum.bitcoin.org/index.php?topic=25860.0;all

My unlocked 6950s at 915 are making 430 with this kernel.

One note, while this setup hashes very well, it is very sensitive to other uses of the box, particularly java or flash animations and any program that monitors the GPU hardware (afterburner)
 
jojo69 said:
Credit to Lorien

http://forum.bitcoin.org/index.php?topic=25860.0;all

My unlocked 6950s at 915 are making 430 with this kernel.

One note, while this setup hashes very well, it is very sensitive to other uses of the box, particularly java or flash animations and any program that monitors the GPU hardware (afterburner)
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Turn off graphics acceleration in flash. Not usually noticeable, but keeps flash from messing with your cards clocks.
 
jojo69 said:
Credit to Lorien

http://forum.bitcoin.org/index.php?topic=25860.0;all

My unlocked 6950s at 915 are making 430 with this kernel.

One note, while this setup hashes very well, it is very sensitive to other uses of the box, particularly java or flash animations and any program that monitors the GPU hardware (afterburner)
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Alright thanks jojo. I'll have to give this a go when I'm back home tomorrow (different city right now and remote connections aren't going through). It is a personal-use desktop, though I've found -I 8 with cgminer has allowed general desktop use. Other than that, I'm out of the house for a good chunk of the day anyway, so it can run mostly unhindered.

And my pool stats were claiming 909Mh/s for a lil while there, but not sure how accurate that was.
 
11.7and 11.8 has cause CPU usage to 40 % Up
I had to D/Grade back to 11.6
I have a following Hard ware
GPU Radeon 5850 1 GiG Ver
CPU Xeon 3100 (3 Gig) 333 FB
4 Gig Ram
Chipset P45
and os is Win 7 Pro 64 Bit
Miner is Guimer
 
I can pickup 4 no brand, new 5850s for 170 each.

You guys think I should expand the farm :)?
 
I'm debating the same question. I picked up 4 brand new Sapphire 5850 Xtremes for $145 each. Anyone looking to expand? I take bitcoins :cool:
 
Damn was that a typo or did you really get some 5850s for that price? I want in on that lol.

on a side note 2 of my new sapphire 5830s have died already. Sapphires crappy RMA company needs a receipt with serial numbers and new eggs sales receipts don't show serial numbers. Has any one dealt with sapphire warranty before?
 
Lorien said:
I'm debating the same question. I picked up 4 brand new Sapphire 5850 Xtremes for $145 each. Anyone looking to expand? I take bitcoins :cool:
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If my quad 6870 deal falls through I might be interested in taking all 4 off your hands.
 
Kardonxt said:
Damn was that a typo or did you really get some 5850s for that price? I want in on that lol.
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Just like the Powercolor 6950 1GB at Amazon deal, this didn't last long. In this case though, they jacked up the price to >$175 within an hour of going on sale.
Hint: Got em from the e-tailer that cannot be mentioned here.
image1id.jpg


tsd said:
If my quad 6870 deal falls through I might be interested in taking all 4 off your hands.
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If I were you I'd never buy 6870s unless you got a killer deal for 'em. 5830s are more cost effective, consume less power and can do the same Mhash/s. But yeah let's talk in PMs I'm very reasonable to deal with, just ask edgaRRRR
 
If one could describe the speculation sub-section of the economics forum at bitcoin.org with a picture, it would have to be this:

ololololv.jpg
 
Lorien said:
Just like the Powercolor 6950 1GB at Amazon deal, this didn't last long. In this case though, they jacked up the price to >$175 within an hour of going on sale.
Hint: Got em from the e-tailer that cannot be mentioned here.
image1id.jpg




If I were you I'd never buy 6870s unless you got a killer deal for 'em. 5830s are more cost effective, consume less power and can do the same Mhash/s. But yeah let's talk in PMs I'm very reasonable to deal with, just ask edgaRRRR
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Made a reasonable deal with Lorien. Very swell guy. Thanks Lorien!
 
Lorien said:
If I were you I'd never buy 6870s unless you got a killer deal for 'em. 5830s are more cost effective, consume less power and can do the same Mhash/s. But yeah let's talk in PMs I'm very reasonable to deal with, just ask edgaRRRR
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Every review/test I've seen has the 5830 taking more power than the 6870?
 
I'm probably wrong then, but did any of those reviews test the card at 99% load? Just looking at the base TDP or regular gaming power consumption is not enough.

Here's a quick comparison of the cards at maximum load. This is obviously not entirely accurate since they are both running at different clocks. The true test should be power consumption at the clock speeds and voltage required to generate ~315Mhash/s which is about the peak these cards can do.
powerof.jpg
 
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that 13.5 point is starting to look like resistance from a technical point of view

but the fundamentals...anything but USD thank you

edit, this 13.35-13.5 drama is getting amusing, I wonder if someone will run out of USD before the other someone runs out of BTC
 
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You are assuming these are different people, don't. It's most likely one person with a bot skimming off the top little by little. If you remove the phantom bid and ask walls you'll see that the market is extremely shallow. Though there definitely are some people out there with >10K bitcoins playing with them every day.
 
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Lorien said:
Just like the Powercolor 6950 1GB at Amazon deal, this didn't last long. In this case though, they jacked up the price to >$175 within an hour of going on sale.
Hint: Got em from the e-tailer that cannot be mentioned here.
image1id.jpg




If I were you I'd never buy 6870s unless you got a killer deal for 'em. 5830s are more cost effective, consume less power and can do the same Mhash/s. But yeah let's talk in PMs I'm very reasonable to deal with, just ask edgaRRRR
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$850 for 4xsapphire 6870s, phenom II, nice mobo, 1k psu, 128g ssd, all in a haf932. And since I'm out of boards/cpus/mobos for miners I needed a new setup.

I'd prefer 5850s, the ones I have do 350mh with no problems. Where as I run my 6870s quietly at 278mh
 
Lorien said:
Just like the Powercolor 6950 1GB at Amazon deal, this didn't last long. In this case though, they jacked up the price to >$175 within an hour of going on sale.
Hint: Got em from the e-tailer that cannot be mentioned here.
image1id.jpg




If I were you I'd never buy 6870s unless you got a killer deal for 'em. 5830s are more cost effective, consume less power and can do the same Mhash/s. But yeah let's talk in PMs I'm very reasonable to deal with, just ask edgaRRRR
Click to expand...

LOL, I should check the unmentionable retailer more often. I wonder what they did to piss Kyle off.
 
I just bought two ASUS 5870s yesterday for $200 each. Threw them into a system that cost me $20 (needed a new ASUS P5K Deluxe mobo). Brings my group to ten overclocked 5870s going in 4 machines and over 4.25GH/s.

The miner is making almost 3 bitcoins a day. I grabbed five Gigabyte 5870s from Newegg only two weeks ago for $239 each. Those sold out in hours as well. Not as good as $145 for 5850s though!
 
Anyone knows why my CPU core #0 stays on fullload all the time?The others are near idle so the total CPU usage is around 30-40%.
 
It's a known bug in the way AMD implements OpenCL, blah blah blah constant spin wait state to prevent stalls in OpenCL programs as the GPU apporaches 100% load so the CPU is on a revved up state ready to kick in to help. And since the GPU is at a constant 99% the CPU is stuck in that revved up state. Try using AGGRESSION=7, that helped when I had single GPU systems. If your system has more than one GPU though, you won't be able to avoid it. You can try pegging guiminer to one core (set affinity in task manager) but you'll have to remember to do that every time you run it.

Let me quote myself from the old thread:

Lorien said:
...the high cpu usage is due to the way AMD implements OpenCL (Nvidia too but they are largely irrelevant in this case). As I understand it; It makes the CPU spin wait ready to kick in to help if the card is about to approach 100% usage, and since the card is constantly loaded at 99% the CPU is locked in a permanent spin waiting state.
Click to expand...
 
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jojo69 said:
Credit to Lorien

http://forum.bitcoin.org/index.php?topic=25860.0;all

My unlocked 6950s at 915 are making 430 with this kernel.

One note, while this setup hashes very well, it is very sensitive to other uses of the box, particularly java or flash animations and any program that monitors the GPU hardware (afterburner)
Click to expand...

I was able to play with it a little bit last night. Upping clock speeds saw the definite increase in hashes. Just need to get something stable there.
 
ahhhh, that explains why each card will peg a core on its own, but when I lock them both to the same core I don't lose any hash
 
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Alright guys, I have a reall stupid/noobish question. I mined for a month on slush's pool and I used the default wallet address created when I signed up for the pool. A total of 11 payouts were made to that address, but I can't for the life of me figure out where that address went to. I never saw my bitcoin client update with the payouts.

I have since updated my new wallet (one generated in the bitcoin client) and have received a payout, so I know its working now, but what about the other 11. Are they history?
 
capt_zman said:
default wallet address created when I signed up for the pool
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So there was an address already set when you signed up for the pool?

If you didn't enter an address, someone else (I'm guessing the pool operator) got your coins.
 
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