nevergonnaroi.jpeg
those usb miners
i think some of mine have  bought them with good old GBP  bought them in months agoo?! SOME of yours?!?!, It is the same ROI period for one USB and for 10 of USB i have 24 AM USB miners - 2 bought at original price (4.2BTC) that will never ROI and then several more bought at price reductions (1 BTC each) and special purchase deals (all for less than 0.1BTC) - i then bought 13 & 0.5BTC with 150 GBP (less than £6 each + shipping) a few months ago - with the new price of BTC - GBP i have made my money back - i was lucky and i doubt it will be possible again  |
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nevergonnaroi.jpeg
those usb miners
i think some of mine have bought them with good old GBP |
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you *may* need to swap to a different OS if you plan on using a lot of miners with XP - my NB200 (XP SP3) has issues with anything over 15 miners - something to do with the way XP handles device IDs or something idk what you are talking about... i got 51 on one machine and 70+ on another machine that is both windows... is that windows XP though? i have all mine running on 7 with no issues. |
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you *may* need to swap to a different OS if you plan on using a lot of miners with XP - my NB200 (XP SP3) has issues with anything over 15 miners - something to do with the way XP handles device IDs or something |
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I have my old (very old) motherboard/CPU/ram ssat doing nothing so its going up for sale - it has a replacement passive chipset cooler (fan started grinding) and includes the two USB headers/bluetooth)and even includes the physical manual) (i can even ship the CPU cooler if wanted - its heavy!)
if interested i can also include my AGP Leadtek A350XT (Nvidia FX 5900XT -128MB) GPU and my Creative Labs Audigy 2 ZS sound card.
Am in the UK and will only ship to the UK.
offers in BTC/LTC/GBP (inc shipping please)
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thanks - i've now configured 3 seperate instances of bfgminer for each of my gpu's... (as my 7950 is my primary card i've set the intensity to 15)
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As hashcows has vardiff, I used multiple instances of cgminer - 1 for each card in the system. This allowed me to tune each card individually (7850 & 5870 & 5770) and for each one to have its optimal difficulty.
What thread concurrency (t/c) are you using for your 5870? - i'm running 6144 atm but i'm conviced it can do better (850 clock - getting about 400) my 7950 is running at t/c atm 21712 but only getting a very low hashrate |
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i have 4GB in the system and 3 GPUs.
If i run the miner at 21712 my AMD driver crashes for the 58xx series cards
The 58xx cards don't have enough ram to use 21712 (and I never said to use 21712). I said to use that on the 7950. I presume you already have working settings for the existing cards. Yeah the cards were working fine... how do i run separate instances of cgminer/bfgminer? whenever i run the miner it automatically pulls in all the GPUs. |
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i have 4GB in the system and 3 GPUs.
If i run the miner at 21712 my AMD driver crashes for the 58xx series cards
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for the 7950, use this:
--thread-concurrency 21712 --worksize 256 -g 1 -I 20
Also, you'll need to set the GPU_MAX_ALLOC_PERCENT environment variable to 100 (instructions vary per OS). Use a 9:8 ratio for engine:memclock.
i get this error when i set it to 21712 [2013-11-12 21:15:22] Maximum buffer memory device 0 supports says 536870912 [2013-11-12 21:15:22] Your scrypt settings come to 1422917632 is that what the GPU_MAX_ALLOC_PERCENT fixes? I'm running win 7 |
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I have a gigabyte 7950 3GB version - hash rate is around 300 - accepted is 74 with 180 HW errors.
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I have bought myself a 7950 for mining to add to my 5xxx series mining rig (replaced two 5770s with a 7950)
I've got the card working fine BUT i'm getting a lot of HW errors with the -thread-concurrency setting... i was expecting quite a performance increase from my 7950 but only seem to be getting about the same as what one of my 5770s was getting.
Current settings: -g 1 -w 256 -I 15,18,18 --auto-fan --auto-gpu --temp-target 70
I have tried a --thread-concurrency 8000 and 6142 and I get a lot of HW errors and the hash rate seems much lower than it should be...
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0.007 BTC per MH and day... this profit barely covers a 0.10 USD/kwh rate. I keep my rigs working because they heat my house nicely, but this is the only reason now.
How is your efficiency on your mining Rigs? I generally have 500 Watts per MH of hashing power, which translates to roughly $4/day in power at 11/kwh electricity rates. Same results, about 0.5 kw per MH. That's 5 cents per hour per MH/s, so 1.20 $/day for every MH/s. What HW are you guys running? i'm still running 5 series GPUs and my rig eats 650w for 1Mh/s (5870/5850/5770/5770). I have a weird mix of 5xxx and 7xxx. I have now got a 7950 added (7950/5870/5850) whats the best config? i have: -g 1 -w 256 --thread-concurrency 8000 -I 15,18,18 --auto-fan --auto-gpu --temp-target 70 edit - i'm getting a lot of HW errors with the 7950 (i think this is the thread-concurrency being wrong though) |
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Evolution in action. The multipools are predators, if the alt-coins can't adapt, they die.
There is absolutely no reason for 90% of them to exist in the first place, other than for devs and those who mine in the first few days to make money on the initial dump anyway. If multipools can kill most of them off, it might actually leave enough space for some of the others to survive.
+1 - there seems so many coins that are just clones with a new name and a few figures changed, they've got no new innovations or bonuses apart from a low difficulty... the best coins will be the first generation OR ones that actually improve or fix the failings on that first generation cryptocurrency - faster transaction times, better security etc, this is why there are BTC, LTC and XPM markets - personnally i think FTC has the potential to overtake LTC but we will see |
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hopefully today i can get a good deal then... any takers?
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Accepting offers for several brand 5850s, can come with risers if you need. PM!
where are you? |
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0.007 BTC per MH and day... this profit barely covers a 0.10 USD/kwh rate. I keep my rigs working because they heat my house nicely, but this is the only reason now.
How is your efficiency on your mining Rigs? I generally have 500 Watts per MH of hashing power, which translates to roughly $4/day in power at 11/kwh electricity rates. Same results, about 0.5 kw per MH. That's 5 cents per hour per MH/s, so 1.20 $/day for every MH/s. What HW are you guys running? i'm still running 5 series GPUs and my rig eats 650w for 1Mh/s (5870/5850/5770/5770). |
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What is HSP ?
Heat Sink Paste or thermal paste... maybe noone calls it HSP any more |
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maybe even swap for a decent GPU |
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I'm after 18x USB block erupters (for GBP) - best price i have seen now is 0.035 each (elastic band) and i also want to buy 0.5 BTC in the same deal.
I will happily pay a trusted UK seller via BT. (Max £120 - can reduce the number of USB/BTCs to keep within the price range)
Ideally i want to finalise the deal today and get the kit in the post this afternoon (to setup tommorow evening)
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