Stack-XMR seems to be the Monero miner of choice recently - minor upgrade from Wolf's CPU miner as I recall, not hugely faster but some. Also, optimising XMR mining hashrate rule of thumb seems to be "set the number of threads to one thread for every 2MB of cache size on the CPU", per several comments I've seen in a few places and my own testing on my Ryzen 1700 and my FX-8350. How many and how big of Burst plotted drives do you HAVE on that thing?  Dug up the actual specs tonight for power connectors that risers use - turns out I was off a LITTLE but not enough to matter. Molex connectors (technically AMP Mate-N-Lock but they got commonly MIScalled Molex a long time back in computer-related usage and the name stuck - I've USED the actual "Molex" 4-pin connectors back in the day on a few 2-way radios) are rated for 13 amps per pin - one pin on 12V (and 2 ground pins, though one is really intended for use on the 5V connection) gives 156 watts power capacity, PLENTY to power the PCI-E bus on a riser with lots of capacity to spare - the limit is usually going to be the WIRING. SATA power connectors have 3 12VDC pins (and 5 ground pins) but each pin is only rated 1.5 amps BY THE MANUFACTURER OF THE PINS, so 4.5 TOTAL amps at 12vdc = 54 watts WHICH IS NOT ENOUGH TO HANDLE THE 75 WATT RATED POWER DRAW FOR THE PCI-E BUS SAFELY. Forget the wiring, the connector ITSELF is not rated for the specified power load. PCI-E 6-pin connectors are rated 75 watts by the PCI-E spec but they're actually good for 8 amps per pin (in the connector, 13 amps free-air but that's not a reasonable rating in actual usage) and at least 2 are connected to 12VDC (the third is sometimes used for a "sense" line), so even 2 pins 8 amps each = 16 amps at 12VDC = 192 watts so the connector is way overkill for PCI-E's rated usage. PCI-E rates the power connectors VERY VERY conservatively - but again, be cautious about the wiring which often is NOT that far overrated. An adapter from 2 SATA to a single PCI-E would be safe enough, at a rated 108 watts - won't split exactly evenly but should be close enough given how many pins are involved. Anyone else notice those "version 008s" risers with all 3 connector types on each riser? Anyone try them yet? https://www.amazon.com/Wonoovi-Riser-Adapter-Extension-Cable/dp/B074V6Z5SZ or https://www.newegg.com/Product/Product.aspx?Item=N82E16812423198 |
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Using SATA to PCI-E adapters on risers is a BAD IDEA - the SATA power connection is not rated for enough 12v DC to handle the typical 70 watts most "mining" GPUs pull out of the PCI-E bus connection.
You can connect most risers direct to your power supply with a standard PCI-E 6-pin connection - which IS rated to handle the load VERY safely.
they are not eat 70W from sata - typically it is about 3-5W all required power vga takes from 6x8pins from power supply my friend had measured - and seems the system "knows" there is not enough power from risers and switches to main psu for required power from sata comes the power to power the riser itself, that's all! Try doing that on a GTX 1080 (180-200 watt factory TDP on most of them) with a single 8-pin PCI-E connector. They will NOT "draw 3-5 watts" from the PCI-E bus - they will draw AT LEAST 50 for the 200 watt TDP models because they are not ALLOWED to draw more than 150 watts from the *8 PIN* PCI-E connection. Many RX 470/480/570/580 models have a single *6 pin* connection rated 75 watts but have a factory TDP of 150 watts - those were NOTORIOUS for a while for drawing 80+ watts from the PCI-E bus (AMD fixed that with a driver change to keep the draw DOWN TO the PCI-E 75 watt spec for the bus power). SATA power connectors have 3 12V pins (and 5 ground pins) but each pin is only rated 1.5 amps PER MOLEX SPEC FOR THE ACTUAL CONNECTOR PINS, so 4.5 TOTAL amps at 12vdc = 54 watts WHICH IS NOT ENOUGH TO HANDLE THE 75 WATT RATED POWER DRAW FOR THE PCI-E BUS SAFELY. Forget the wiring, the connector ITSELF is not rated for the power load needed for safe operation. DO NOT ASSUME THAT SATA POWER IS SAFE FOR A RISER CARD - the connector is NOT rated to supply the full power draw the PCI-E bus is RATED for, and many cards push that rating hard or even slightly exceed it. Oh yeah - 1050 and 1050ti are rated for 75 watts TDP and generally don't HAVE a PCI-E power connector, though not used a LOT in mining. RX 460 has a 60 watt TDP and no PCI-E power connector on ANY of those I've ever looked at, though again not used a LOT in mining. GTX 750ti was generally rated 75 watts and rarely had a PCI-E power connector - and a LOT of those were used for Monero minng because at one point they were THE most efficient Monero mining GPU (and beat out most CPUs as well). Try claiming THOSE pull "3-5 watts from the PCI-E bus" sometime.... Dual SATA to PCI-E adapter to feed a PCI-E power connector on the riser should be safe, at 108 rated watts. |
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Found the actual specs tonight.
Molex connectors (technically AMP Mate-N-Lock but they got commonly MIScalled Molex a long time back) are rated for 13 amps per pin - one pin on 12V (and 2 ground pins, though one is really intended for use on the 5V connection) gives 156 watts power capacity, PLENTY to power the PCI-E bus on a riser with lots of capacity to spare - the limit is usually going to be the WIRING.
SATA power connectors have 3 12VDC pins (and 5 ground pins) but each pin is only rated 1.5 amps, so 4.5 TOTAL amps at 12vdc = 54 watts WHICH IS NOT ENOUGH TO HANDLE THE 75 WATT RATED POWER DRAW FOR THE PCI-E BUS SAFELY.
Forget the wiring, the connector ITSELF is not rated for the power load needed for safe operation.
PCI-E 6-pin connectors are rated 75 watts by the PCI-E spec but they're actually good for 8 amps per pin and at least 2 are connected to 12VDC (the third is sometimes used for a "sense" line), so even 2 pins 8 amps each = 16 amps at 12VDC = 192 watts.
PCI-E rates the power connectors VERY VERY conservatively - but again, be cautious about the wiring which often is NOT that far overrated.
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Over 10% hashrate higher is "no difference between 16 and 19 compute units"?
What a STRANGE theory.
I was predicting that this card would fall between the 1070 and 1080 on performance on ZEC - no shock there.
It IS a bit lower than I was hoping for on ETH, apparently it is severely memory-limited - but no shock there too.
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I keep struggling to understand why anybody would want one of these over a 1080ti. I understand they're less expensive and have a performance boost over the 1070's....but the 1080ti is still the best price per performance tradeoff despite its higher price.
In my case, I'm looking at "power limitations" of my infrastructure on the ASUS 19-slot and figuring I need ONE lower-power card to hang on the PS that also powers the MB/CPU/RAM/HDorSSD in the machine, while all the rest end up being 1080 ti cards. I've not had enough time to figure exactly HOW MUCH lower I need to go on power for that one card yet, so I figure getting ONE to figure out where it's going to end up at is a good idea ahead of time - and worse case it SHOULD be in the same ballpark as the rest of the 1070/1080/1080ti line for efficiency and hash/$. Keep in mind that the G1 Gaming is a very high end 1070 model with a 180 watt stock TDP (I've got a few of those myself) - I'd like to see what setttings were involved on the posted hashrates OTHER THAN the power draw. |
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CPU: E5-2630L (has 40 PCIe lanes and is less than $100 on eBay)
does the cpu mine xmr?] Yes, but you'd be better off with one of it's "bigger" siblings like the E5-2650 -2660 or -2670, depending on which the board will support. 2650 and 2660 can be found pretty cheap, even on Newegg, 2670 tends to be a fair bit more expen$ive. Tons of that series got used in a LOT of data centers in "open compute" Windmill and Winterfell servers, among other usages. |
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Heat is the problem. Back in the early days of Bitcoin a guy had some computers mining BTC in his bedroom. He closed the door and went to sleep. He woke up the next day suffering from heat stroke. He had to be taken to the hospital. Adequate ventilation and cooling needs to be considered as much as your GPU. http://www.zdnet.com/article/a-minor-bitcoin-miner-injury/ Every time someone comes up with an "idiot-proof" idea, a worse grade of idiot shows up. Odds are, if it got THAT hot in the room, his rigs were overheating and thermal throttling too. |
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I've got a question about that actually, I'm currently mining ZEC, which is also equihash. Will it be as simple as pointing EWBF at a BCG pool and wallet
Once they get it up and running, yes. |
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what you are failing to factor in is the 580s are beasts at dual mining , if you have adequate cooling a good 580 can do 30mhs eth and 95 lbr for 150 watt
that 95 lbry is basically nearly 3 times what i can get out of a 1070
A GTX 1070 should be good for more than 300 MHash on lbry - if you're seeing only 30 you're running some really badly outdated software, or have something configured WAY wrong. Sure you're not confusing ETH hashrate on a 1070 (which IS in the 30 Mhash ballpark) with lbry hashrate? On the other hand, ETH isn't a good choice for the 1070 any more, since RX 470/480/570/580 pricing dropped back under the $400 range. The reason to get a 1070 is for OTHER algorithms like the one used by ZEC/ZEN/ZCL/BTG, where it IS comparable to superior on hash/$ to the RX series cards, or lyra2r2 where it blows away AMD on hash/$ - among many other options. Keep in mind that ETH is not the end-all or be-all for GPU mining - it's the biggest SINGLE GPU-mineable coin right now, but not the ONLY profitable one by a long shot and often not the most profitable on a income/cost of rig basis. |
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P2Pool is designed to allow remote connections - no point in having a POOL if you can't do that.
It's just not a "big centralised" pool design, it's designed as a "distributed peer-to-peer pool" setup.
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GTX 1080 ti can mine ETH - it's just not a sensible or economical option to do so, as it is nearly matched on hashrate by MUCH MUCH less expen$ive cards with similar or superior hash/watt.
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Currently all scrypt miners are in 28 nm node
Antminer L3/L3+ and Innosilicon A4/A4+ are 14/16 nm node (probably all 14nm as I'm pretty sure they're all TSMC-manufactured chips). I'm pretty sure the BW.COM scrypt miner I remember seeing an announcement about was also 14/16nm. Where do you get the silly idea that CURRENT scrypt miners are still on the 28nm node? I doubt we'll see a 20TH SHA256 miner, or a 800 MH Scrypt miner, or a 50 GH X11 miner before the next node hits - there doesn't seem to be that much room left on the current nodes for that much higher efficiency - though the Scrypt and X11 miners aren't pushing 1500 watts hard so it's POSSIBLE someone will built a "bigger" miner that hits those numbers there. I would bet AGAINST a SHA256 miner at 20TH though, unless someone builds a "monster" like the Spondoolies SP50 was going to be, or it's a custom design for internal use in a LARGE farm and probably NOT air-cooled. |
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Why are you guys even mining ETH on nvidia cards? ZEC is like 20% more profitable on its worst day.
Depends on the specific card. GTX 1060, it's been pretty close and often ETH IS more profitable. GTX 1070, usually fairly close though ZEC is usually a LITTLE more profitable. GTX 1080 and 1080 ti, no competition ZEC wins hands down as those cards are not real good at ETH due to the GDDR5X memory latency issues. GTX 1070 ti is a question mark at this point, depends on if the cores are actually usable for ETH or if it's memory limited, but I suspect it will be better on ZEC as well. |
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Surely this can't be right, I mean can it ? The Skein hashrate is given as 5Gh/s and putting those figures into Whattomine it gives, approximately, a profit of about $4000USD per month ! ASIC vs GPU. I'm not sure though, is Skein one of the X15 algos? I suspect they (again) designed the chip to be able to "split out" any of the X15 component algorithms, and are still working on the firmware to actually make the ones that are used in mining usable. |
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Pinout is NOT THE SAME between an 8-pin CPU connector and an 8-pin PCI-E connector.
If you are careful though, there is a matchup between the 6 pin PCI-E connector and the corresponding 6 pins of a CPU connector - but I advise you to use an adapter unless you know EXACTLY what you are doing.
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Humidity level TOO low dries out your sinuses and can cause health issues.
Humidity level too high tends to cause mold buildup and is VERY bad for you to breath that stuff for extended periods of time.
I'm not sure where the actual numbers on "too low" are, but I suspect they are probably under 20% and might be under 10%.
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Bittrex offers ZERO support for BTG at this time.
They apparently plan to change that once a viable BTG wallet finally shows up.
It is too late to move BTC - the "snapshot" was October 23.
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I notice that many AMD Gpu's are available for regular price now. Are you guys still buying rigs? Or is it at a point where it's not very wise to build more rigs?
I have yet to see ANY AMD RX 470/480/570/580 at anywhere near it's "regular price" from Febuary or before. The RX 460/560 was less effected by the shortage, and I think the Vegas are finally dropping down to close to their "list price" as supply catches up to demand (and given the relatively poor performance of the VEGA in it's price range, I won't be shocked to see them hitting noticeable discounts vs "list price" soon). HOWEVER Profitability on mining is back down into the rough ballpark of where it was at back in Febuary on most coins, before the big price surge hit - and I suspect new rig building is going to stay depressed for a while, then when ETH goes POS profitability is going to colllapse across the board for GPU mineable coins and a lotta current rigs are going to get sold off for parts because they're no longer profitable even at CHEAP electric rates. I personally am not mining with any of my AMD GPUs at this point, as such (technically they're earning some Gridcoin but it barely pays their electric usage). I have zero intent of buying any AMD cards for the foreseeable future to mine on because the pricing on the good mining cards is STILL inflated quite a bit. |
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The only way that undervolting a card might hurt is if you set the undervolt so low the card just stops working, and CAN'T set it back higher.
Not an issue if you're using a tool like Afterburner, rarely an issue if you are doing a BIOS mod to change the card (many recent cards especially AMD have a "BIOS switch" on them that switches between 2 seperate BIOS).
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yeah, but even counting that, sometimes the numbers are way off, even in that instant.
For example, I should earn like 2 zcoin daily according to them with one of my rigs, without the overclock,
yet with a huge overclock I get just 1.5, that is a HUGE difference.
So yeah, I dont know where they dig their data from, but it is almost always off.
Like ANY "calculator" site, they use a snapshot of data - and that data CHANGES. They also use "estimates" for each card that often won't be right for how YOU SET YOUR CARD UP, even on the same model of card. Don't count on ANY calculator to provide 100% accuracy - there are way too many variables for that to be possible. |
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