Cryptocoin Mining?

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OVerLoRDI

Diamond Member
Jan 22, 2006
5,494
4
81
As far as difficulty -- it auto adjusts every 210000 blocks. If it's sky high and people stop mining it'll take a very, very, very VERY long time to adjust again.

False, every 2100 blocks. Which is roughly every 12 days. Next difficulty in about a week. Probably will be around 800k.

Difficulty can also drop if enough people drop out. At these prices though, I highly doubt people will drop anytime soon. If the market tanks we will see people dropping out.
 

YoungGun21

Platinum Member
Aug 17, 2006
2,551
1
81
Has anyone seen a card just crap out due to running at full load constantly? Im mining now, and my temps are great (77c under 99% load, fan only at 32%) but I am just paranoid about leaving it run constantly like that.

Turn your fan to 80%
 

hans030390

Diamond Member
Feb 3, 2005
7,326
2
76
Got my 5830 in! Did a quick overclock 15% to 920/1150 from 800/1000. Bumped up the voltage to 1.2v. Getting about 270-275MH/s with Phoenix (phatk). Good jump compared to my 5770 at 190MH/s (about 45%).

My GPU seems to hover around 73-78 degrees C without air conditioning on at automatic fan settings.
 

hdfxst

Senior member
May 13, 2009
851
3
81
Got my 5830 in! Did a quick overclock 15% to 920/1150 from 800/1000. Bumped up the voltage to 1.2v. Getting about 270-275MH/s with Phoenix (phatk). Good jump compared to my 5770 at 190MH/s (about 45%).

My GPU seems to hover around 73-78 degrees C without air conditioning on at automatic fan settings.

read this and see what the voltage is compared to what is set in trixx http://www.techpowerup.com/forums/showthread.php?t=147165 and also watch your vrm temps (gpu temp 2 in gpu-z) mine runs 7-8C hotter than the core with the fan at 70%
 

Muyoso

Senior member
Dec 6, 2005
310
0
0
Got my 5830 in! Did a quick overclock 15% to 920/1150 from 800/1000. Bumped up the voltage to 1.2v. Getting about 270-275MH/s with Phoenix (phatk). Good jump compared to my 5770 at 190MH/s (about 45%).

My GPU seems to hover around 73-78 degrees C without air conditioning on at automatic fan settings.

Drop that voltage! I initially did the same thing as you. Upped the voltage to 1.2, since my 5850 needed a voltage bump to overclock, I thought my 5830 would as well. My 5830 is a monster though. Stock voltages, 1000mhz clock, 59c at load in a 75f room.

I can't wait for bitmining to be over so I can bench this 5830 for real. At those clocks, I wonder how close it is to my 5850.
 
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SlowSpyder

Lifer
Jan 12, 2005
17,305
1,001
126
Hi guys, is there a good guide to getting this set up? I'd like to see how my system does with this task. What application are you using for GPU mining?
 

hans030390

Diamond Member
Feb 3, 2005
7,326
2
76
read this and see what the voltage is compared to what is set in trixx http://www.techpowerup.com/forums/showthread.php?t=147165 and also watch your vrm temps (gpu temp 2 in gpu-z) mine runs 7-8C hotter than the core with the fan at 70%

Ah, good find. So, how can I check to see what my voltages are really at? Does this mean that the default voltage setting in Trixx for the 5830 is higher than the default should actually be?

I've been using GPU-Z to test temperatures. And while I didn't specifically state it, the range of temps I gave represented the range of temperatures I'm seeing in GPU-Z. So, yes, I've been checking the vrm temperatures.

Drop that voltage! I initially did the same thing as you. Upped the voltage to 1.2, since my 5850 needed a voltage bump to overclock. My 5830 is a monster though. Stock voltages, 1000mhz clock, 59c at load in a 75f room.

I can't wait for bitmining to be over so I can bench this 5830 for real. At those clocks, I wonder how close it is to my 5850.

Why would I drop it? I mean, sure, now that I know Trixx misreads voltages, I'll drop it. However, I still plan on keeping it around 1.2v, as my 5830 isn't a fantastic overclocker. It will crash if I put it at 930Mhz on stock voltages (well, stock voltages according to Trixx). 1.2v should be a safe voltage, and my temperatures are well within a safe range.
 

dust

Golden Member
Oct 13, 2008
1,339
2
71
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v8envy

Platinum Member
Sep 7, 2002
2,720
0
0
False, every 2100 blocks. Which is roughly every 12 days. Next difficulty in about a week. Probably will be around 800k.

Difficulty can also drop if enough people drop out. At these prices though, I highly doubt people will drop anytime soon. If the market tanks we will see people dropping out.

Off by two orders of magnitude on the adjustment, good to be wrong. How would difficulty drop if enough people drop out? Is there a safeguard to do that if too few blocks are being generated? That was my concern -- if it takes 10 days to generate 2100 blocks at a difficulty of 560k then how long would it take if just about everyone dropped out at once? Right now pool capacity appears to be growing by 20% a day for the 3 pools I looked at.

I think 800k may be a bit conservative for next week looking at massive pool capacity growth.

And speaking of pools, I'm getting much higher payouts in BTCGuild as opposed to slush's pool. About 15% better over 12 hours looking at a parallel test with one 5830 in slush's pool, one 5830 in BTCGuild. I've converted both of my miners to BTCGuild as of now.

I don't really have an explanation for this, except I've noticed my payout per block in Slush's pool declines the longer the block takes to solve -- a double whammy. He seems to weigh the work submitted right before the block is solved much, MUCH higher than all the other work. Or someone's figured out a way to game his system. I get consistent results in BTCGuild, so between less flakiness, support for long polling (about half as many rejected blocks) that pool works much better for my hardware.
 

dust

Golden Member
Oct 13, 2008
1,339
2
71
So I got a 6850 to replace the 7800gt I have in a Pentium D platform that was taking space and I added another 194Mhash/s to my efforts, at least until the old Force 450W is going to crap out.

Naturally I chose to play some Witcher on my main rig, just for 5 hours or so, relaxed that the mountain of BTC is piling up behind me under the direct supervision of the 6850. After the said period of time I put the 6950 back to mining and went to take a nap.

Two hours later I woke up and realized the income for the past 8 or so hours was only 0,2 BTC. At this rate I have to postpone my plans of getting a helicopter any time soon.

My question is: WTF is going on? Has the difficulty been increased already? I can see that the number of miners skyrocketed, it is actually double now from what it was last week, when I started this whole thing.
 

Muyoso

Senior member
Dec 6, 2005
310
0
0
Why would I drop it? I mean, sure, now that I know Trixx misreads voltages, I'll drop it. However, I still plan on keeping it around 1.2v, as my 5830 isn't a fantastic overclocker. It will crash if I put it at 930Mhz on stock voltages (well, stock voltages according to Trixx). 1.2v should be a safe voltage, and my temperatures are well within a safe range.

To keep the temps down. 1.2 is in the safe range for the card, but dropping it from that to the stock voltages really helped keep the temps low for me. What 5830 do you have? Have you tried lowering the memory clock to around 300-350mhz?
 

hdfxst

Senior member
May 13, 2009
851
3
81
Ah, good find. So, how can I check to see what my voltages are really at? Does this mean that the default voltage setting in Trixx for the 5830 is higher than the default should actually be?.

you need to check it with a multi meter.i thought i had a great overclocker (900@ 1.150 volts)but now i see that my actual voltage is probably closer to 1.2.if you have a 5830 xtreme i would assume that trixx is showing a lower voltage
 

hans030390

Diamond Member
Feb 3, 2005
7,326
2
76
To keep the temps down. 1.2 is in the safe range for the card, but dropping it from that to the stock voltages really helped keep the temps low for me. What 5830 do you have? Have you tried lowering the memory clock to around 300-350mhz?

Oh, my temps are fine, so I'm not worried about that. I'm using the Sapphie 5830 Xtreme. I also don't plan on underclocking the memory, since I do game with this machine. I don't want to have to switch back and forth with underclocking/overclocking for games.

you need to check it with a multi meter.i thought i had a great overclocker (900@ 1.150 volts)but now i see that my actual voltage is probably closer to 1.2.if you have a 5830 xtreme i would assume that trixx is showing a lower voltage

If that guy is right, 1.2v will actually put me at around 1.24v. Still safe, and my temps are still fine. I'll be messing with it more tonight.

I wonder if every overclocking application will show a lower voltage for this card.

BTW, my 5830 and 5770 never artifacted when overclocking. Well, to clarify, it seems as though there is a VERY small window for it to artifact without crashing. Usually it either just crashes or artifacts and instantly crashes. Do the 5xxx cards not artifact like other cards? Do they just crash if they're not stable or what?
 
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v8envy

Platinum Member
Sep 7, 2002
2,720
0
0
My question is: WTF is going on? Has the difficulty been increased already? I can see that the number of miners skyrocketed, it is actually double now from what it was last week, when I started this whole thing.

I noticed I wasn't getting very much in slush's pool, but BTCguild pool is still getting me the same amount as earlier this week when the difficulty went up to 560k. I think slush is either changing the work crediting to only count the last 10 or so submissions per block, or someone is gaming his new system hard.
 

dakU7

Senior member
Sep 15, 2010
515
0
76
I noticed I wasn't getting very much in slush's pool, but BTCguild pool is still getting me the same amount as earlier this week when the difficulty went up to 560k. I think slush is either changing the work crediting to only count the last 10 or so submissions per block, or someone is gaming his new system hard.

slush & deepbit had multiple DDoS attacks today (still going on deepbit I think), so loads of miners are jumping ship to BTCGuild. I'd expect a heavy grow in cluster performance.

EDIT: Infact, last time I checked was 6 hours ago and BTCGuild had just under 1Thash/s, now they're up to 1.2Thash/s. Amazing.
EDIT2: Make that 1.3Thash/s. Wow.
 

NoStateofMind

Diamond Member
Oct 14, 2005
9,711
6
76
Might want to invest in AMD stock before the end of next quarter? $7.59 end of trading today.
 
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NoStateofMind

Diamond Member
Oct 14, 2005
9,711
6
76
I'm wondering if you had three 5850's if you could dedicate two to mining while the third can be used for gaming? lol I know its asking a lot but if it can be done then those with just one PC can mine and game at the same time. Best of both worlds IMO.
 

pcm81

Senior member
Mar 11, 2011
584
9
81
I'm wondering if you had three 5850's if you could dedicate two to mining while the third can be used for gaming? lol I know its asking a lot but if it can be done then those with just one PC can mine and game at the same time. Best of both worlds IMO.

On my 2x 6990s I mine on 3 gpus and game on 1 gpu.
 
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