So I just got my ASUS R9 290, plugged it, couldn't get it to run properly with cgminer so I switched over to sgminer.
I undervolted my card to 1.023v, and it's stable, hashing at 800 kh/s with 911/1250 and 75c.
Thing is, my WU is a lot higher than my KH/s (I know WU is what counts), is it okai? It's stable on 1k WU with 0 HW.
Actually, WU usually levels out to ~0.9 what your KH/s is. If you're running 800KH/s, you should be getting a WU:~720. Of course, this is all random, and sounds like you've had a stretch of good luck! When we reboot our rigs, we notice massive swings in the WU until they eventually level out. We've seen as low as 500, and as high as 1200 per GPU. They eventually even out, tho. Come back in 48 hours, and see what it says. Will do. Been like this for an hour + now, hopefully it will last Thanks!
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Been registered for a few months now. At least I ain't alone with this lack of luck
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So I just got my ASUS R9 290, plugged it, couldn't get it to run properly with cgminer so I switched over to sgminer.
I undervolted my card to 1.023v, and it's stable, hashing at 800 kh/s with 911/1250 and 75c.
Thing is, my WU is a lot higher than my KH/s (I know WU is what counts), is it okai? It's stable on 1k WU with 0 HW.
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So, any heard about this upcoming MMORPG? http://www.wildstar-online.comIf you have, and you're in the beta, any chance you got a spare beta key? Been registered for it for months now
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Don't buy XFX, get a Gigabyte R9-270 OC or some Sapphire which gives even higher hashrate. Search around for best brands, memory types, temperatures, noise, etc...
To the poster above, did you have to plug them and install by a particular order, or you plugged both, installed drivers and they did "just work"?
I plugged and installed the AMD first, restarted PC, shut down, plugged and installed the Nvidia second, restarted and they worked. Speaking of which, has anybody ever seen an idiots guide to all the commands available to CGMiner? I'm plunking in all these tags and numbers based on the recommendations of other users, but I'm not quite sure what most of them actually mean, or if they can be further optimized for my particular card.
Check the read me file.
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I'm about to run out to the store to buy myself an XFX R9 270 to either add to or replace my EVGA GTX 660ti. I'm curious if anybody has a success story of combining GPU's in one machine without the nightmare of driver conflicts? The 270 would end up being strictly for mining with the 660ti taking care of the rest of the system. I'm using Windows 8.1.
I did the same - combined AMD and Nvidia GPUs, except used both for mining and had no issue under windows 7. Just installed the drivers for each and in the miners config (using 2 different miners) I set the GPU that's gonna be used ( -d ) with said miner (although from my understanding I didn't need to set the GPUs, but w/e).
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Over time electricity is the main expense, that is just a fact.
I am all but done with purchasing mining equipment that is not being designed to mine, also I don't spend fiat on mining equipment anymore. These were essentially free minus my initial hardware expenses 10 months ago and electricity. And an HD 6850 is still horribly inneficient as far as khs/kwh
Everything is more expensive in Cali near the beach. Also have mouths to feed.
I bought a mining item that costs less to operate and is at least 300x more efficient than my first rig. Denial is a tough pill to swallow, the btc guys had to do it when ASIC was developed and so will the alt guys. ASIC is not a bandwagon, it is the future.
That about covers it.
You should read about Moore's law the next time you are thinking about buying your next $800 gpu.
Denial... Future... So that's why you bought 70KH/s for 90 bucks. I see. If Scrypt does follow the path of BTC, than by the time you see ROI you'll make 0 profit, even with the minimal electricity consumption (same as with todays BE). And FYI, when ASIC does become avaiable and viable for Scypt, I'll be the first to get it, until than, I don't see the point in getting hybrid ASIC which is gimmicky at best.
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Nope they are real. People in the forum have them and are running test right now. Lets face it.... it will be the same cycle as Bitcoin... first CPU, then GPU then FPGA then ASIC's. SCRYPT will follow the same exact pattern.
I would say its almost to late to invest a large amount of capitol in GPU as everyone now will switch over to ASIC's.
There's no ASIC for scrypt. Period. The hybrid that is being sold is hardly ASIC, in fact, I bet its Scrypt mining part is not ASIC but a regular GPU chip with a few tweaks, especially when you look at its KH/s and the price tag it's coming with. 300 KH/s is very laughable. You're referring to these, right? www.dualminer.comThey're interesting, I'll give them that. They're available but still seem way to pricey for the output. ROI is too far out. The only appealing aspect is the power consumption. Then again, we've seen how the Bitcoin block erupter USB's became obsolete so you know it's going to happen to these as well and they won't have a resell value like a gaming GPU. There will need to be a price drop/output increase for these to catch on at this point in the game. I had these in mind when I was writing the reply: https://bitcointalk.org/index.php?topic=421921.0But what you linked is just as a bad, a bit better on the power consumption I guess, but still, 100 bucks for 40KH/s.... got mine at BTC.107 per and they run at 70khs. Also they hash out in BTC only mode as fast as an antminer U1. For four of these it is cheaper than building a whole rig. And it is portable and way cheaper on power. When the price comes down, and it will, those who went all in on GPU for scrypt will be wondering what happened. These will eventually cause difficulty to skyrocket and a new algorithm will need to be developed, sound familiar? A small rig that will equal your hashrate than maybe you're right, but bigger rigs will overshadow the price of the mb, cpu, ram, case, etc (except psu), because than the price of the GPU will be the main expense. Now, with your 4 hybrids, you do 280KH/s which equate to one HD 6850 card, which you can get for 100 bucks. With my electricity bill, if I'd build my rigs hashrate using those hybrid usb stick, I'd need to wait an extra 2 months to see ROI, even with the cheaper electricity bill, and that's a lot in mining term. Right now, those hybrids ain't worth it unless electricity is really, really expensive where you live. Not sure what your comment was all about anyway, so you bought a mining item, with long time to see ROI because you wanted to jump the ASIC bandwagon?
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Nope they are real. People in the forum have them and are running test right now. Lets face it.... it will be the same cycle as Bitcoin... first CPU, then GPU then FPGA then ASIC's. SCRYPT will follow the same exact pattern.
I would say its almost to late to invest a large amount of capitol in GPU as everyone now will switch over to ASIC's.
There's no ASIC for scrypt. Period. The hybrid that is being sold is hardly ASIC, in fact, I bet its Scrypt mining part is not ASIC but a regular GPU chip with a few tweaks, especially when you look at its KH/s and the price tag it's coming with. 300 KH/s is very laughable. You're referring to these, right? www.dualminer.comThey're interesting, I'll give them that. They're available but still seem way to pricey for the output. ROI is too far out. The only appealing aspect is the power consumption. Then again, we've seen how the Bitcoin block erupter USB's became obsolete so you know it's going to happen to these as well and they won't have a resell value like a gaming GPU. There will need to be a price drop/output increase for these to catch on at this point in the game. I had these in mind when I was writing the reply: https://bitcointalk.org/index.php?topic=421921.0But what you linked is just as a bad, a bit better on the power consumption I guess, but still, 100 bucks for 40KH/s....
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Nope they are real. People in the forum have them and are running test right now. Lets face it.... it will be the same cycle as Bitcoin... first CPU, then GPU then FPGA then ASIC's. SCRYPT will follow the same exact pattern.
I would say its almost to late to invest a large amount of capitol in GPU as everyone now will switch over to ASIC's.
There's no ASIC for scrypt. Period. The hybrid that is being sold is hardly ASIC, in fact, I bet its Scrypt mining part is not ASIC but a regular GPU chip with a few tweaks, especially when you look at its KH/s and the price tag it's coming with. 300 KH/s is very laughable.
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I've seen a couple of sites claiming to have pre-order Scrypt ASICs but is there any concrete evidence that they exist?
No. And by "a couple of sites" you mean Alpha-T? I'd bet good money that they are a scam.
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Vcore being a fix value, when the load from the gpu goes down the only thing that can be reduced is amperage. check if gpu load is also lower when the amps go lower.
Will do and update. UPDATE : GPU load remains stable at 99%. What else could be causing the fluctuation in current ? Try switching the PCI power connectors of the card and see if the same card that keeps getting his current drop.
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As Im in europe and I got 230v outlets, is anything different?
They have higher efficiency with higher voltage, so in your case (mine too), the efficiency will stand on 90% at 100% load (as opposed to 88% with 110v).
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Hi, One of my cards sometimes fluctuates the current level shown in GPU-z
The normal current lievel VDDC Current is 93-94 A (Amps).
However the card sometimes falls to 76-77 A for a few seconds and comes back to the level earlier.
Is this normal ? Or it something wrong perhaps with my PSU ?
PS: I recently had one of my burnt cards replaced so don't want the same situation again.
Which PSU are you using and how many cards?
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I have a rig with 5 r9-270s in it and only 4 are being detected by the motherboard. I know that only 4 are being detected by the motherboard because it is a MSI A88x-G43 which has a hardware display built into the uefi. Has anyone had any experience with this problem?
What PSU are you using and are you using powered risers?
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I'm new to mining and the reading I had done had me under the impression that the graphics card was the dominant factor in determining what you could get out of your rig. However, I started with getting about 400 kH/s with the XFX R9 270 on my work/gaming machine, and then decided to try to stick some XFX 7950s into a crappy rig with a Celeron, cheap Gigabyte mobo and cheap memory, and it is giving me almost nothing. If I take the 7950 and put it in my "good" machine, I can get about 530 kH/s stably without touching other options; in my cheap rig, I get about 150 from the exact same card before it explodes with HW errors. With overclocking, I can get my good machine to do about 630 kH/s with that card before I start getting occasional (~2%) rejections (still no hardware errors).
Am I doing something wrong, or did I just pick some bad components for the rest of the rig?
What miner are you using and are the configurations the same?
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how many power does all cards draw?
My new Watt-o meter shows approx 1400W Wow, that's a lot for 4 cards.... Your KH / W ratio is so low :|
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From the information I've come across, litecoin source contains SHA256 algorithms, only the memory requirement is more.
Why not add massive 500GB of non ECC memory to a server board and some bitcoin mining chips?
Am I missing something or is 3TH of scrypt hashing power on ltc just not worth the effort to any dev out there?
The essence of what you wrote is true: Scrypt does require a massive amount of memory to be hashed, however, this cannot be added to current BTC ASIC equipment because Scrypt is using a modified version of the SHA-256 algorithm, and since the ASIC is specific to the SHA-256 algorithm, it won't be able to work with the modified version, AKA, Scrypt. Atleast, to my understanding.
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If the new drivers don't help try a different version of CGminer.
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How many cards are you running? What is the temp of your GPU? Also, what is your HW?
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