Search content
Sort by
Showing 20 of 78 results by yurtesen
Re: MAXCOIN POOLS REVIEW - Find the best POOL- Crowdsourced and Updated
http://dwarfpool.com/ seems to show correct hash rates.
I have been using https://max.hashfaster.com/ but lately it started giving 1/10th of what other pools are producing for same hash rate...so...
I have been using https://max.hashfaster.com/ but lately it started giving 1/10th of what other pools are producing for same hash rate...so...
Any tutorial for CPU Mining ? I just can't figure out how to do it 
Well, here's a start:
http://forum.max-coin.net/index.php/topic,3.0.html
I dunno about it not being worth it to CPU mine...in 3 days of CPU mining on my i5 3570k at 4GHz I've picked up 2 MAX. Not a lot, but better than a poke in the eye with a sharp stick! It has an onboard Intel graphics chip and won't accept an ATi video card. After I get rich mining with this 260X on this Phenom IIx4 945 rig (6-year-old HP Pavilion), I'll buy an nVidia for the 3570k rig.
Sorry, little off topic but why do you think it does not accept AMD card but Nvidia will work?
Actually I don't know that an nVidia will work. I tried this r7 260X on it first and it gave no display. The BIOS has no provision for specifying a primary video adapter, so maybe an nVidia won't work either. It's an Asus P8H77-I --a micro-ATX form factor with integrated Intel graphics. Cheap enough that if an nVidia won't work either, then I'll just go buy a new motherboard.
I had a slightly different problem with intel igpu's explained here:
https://bitcointalk.org/index.php?topic=456420
About your mobo:
http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8H77-I/E7988_P8H77-I.pdf
See page 2-19
Primary Display [Auto]
Quote
Allows you to decide which graphics controller to use as the primary boot device. Configuration
options: [Auto] [iGPU] [PCIE]
options: [Auto] [iGPU] [PCIE]
In either case, the GPU should work on your mobo I think. But it may use too much current (as I had that problem with Intel machines)... best is perhaps to get an AMD system...
Re: AMD GPU current usage on Intel integrated GPU processors...
Hi fghj,
Yes, the current usage increases when the cores get warmer, it is how any silicon behaves, but in this case the temperatures were same (until the card overheated due to so much current going in). In either case, it wouldn't have explained so drastic difference. I also think the current reading is correct. Even tested Intel and AMD mobo in the same case just to see if it will behave differently.
I can tell that there is something really screwed on Intel mobos. Well, to be honest it only happened in 2 Intel's so far both have igpu but I don't have many of those machines to test. One Asrock mobo and the other had Asus mobo and one machine had ivybridge and other had sandybridge processor. (with 2 different sets of R9 280x'es
For example at 800mhz cpu/1000mhz memory at about 0.925v both cards are able to run with 50%-70% fan speeds at ~73-75C temperature on any AMD system. But when an Intel CPU (with igpu) is used, the upper card shows ~20A current and fan hits 100% quickly, and also card still goes over 82C even at 100% fan speed. I dont see any reason to believe this has anything to do with card temperatures or cards themselves or settings (which I use the same in every machine). More strangely, GPU-Z shows correct core voltage for the card which uses so much power. Also, I have burned the voltage settings to the card bios using vbe editor/atiflash and I do not set them after booting the machine so it can't be some setting applied to wrong card etc.
Does anybody run R9 280x cards on Intel systems and tried to reduce voltages but failed to reduce current usage? I don't know how many are trying to tune their cards for efficiency?
Thanks!
Yes, the current usage increases when the cores get warmer, it is how any silicon behaves, but in this case the temperatures were same (until the card overheated due to so much current going in). In either case, it wouldn't have explained so drastic difference. I also think the current reading is correct. Even tested Intel and AMD mobo in the same case just to see if it will behave differently.
I can tell that there is something really screwed on Intel mobos. Well, to be honest it only happened in 2 Intel's so far both have igpu but I don't have many of those machines to test. One Asrock mobo and the other had Asus mobo and one machine had ivybridge and other had sandybridge processor. (with 2 different sets of R9 280x'es
For example at 800mhz cpu/1000mhz memory at about 0.925v both cards are able to run with 50%-70% fan speeds at ~73-75C temperature on any AMD system. But when an Intel CPU (with igpu) is used, the upper card shows ~20A current and fan hits 100% quickly, and also card still goes over 82C even at 100% fan speed. I dont see any reason to believe this has anything to do with card temperatures or cards themselves or settings (which I use the same in every machine). More strangely, GPU-Z shows correct core voltage for the card which uses so much power. Also, I have burned the voltage settings to the card bios using vbe editor/atiflash and I do not set them after booting the machine so it can't be some setting applied to wrong card etc.
Does anybody run R9 280x cards on Intel systems and tried to reduce voltages but failed to reduce current usage? I don't know how many are trying to tune their cards for efficiency?
Thanks!
Hello,
I have realized that on few Intel systems the AMD GPUs use double the power when they are on 1st slot compared to other PCIe slots. (I don't know about what Nvidia does)
I have tested this with two R9 280x'es and set them to a low power mode at 800mhz cpu/1000mhz memory at about 0.925v both and first GPU used about 18A-20A (at 12v) and the other one used 8A-10A current (checked using GPU-Z). Just to be sure that this was not related to the GPU, I have replaced the placement of the GPUs but still the same for the GPU which is connected to 1st slot.
I do not see this behavior on AMD FX CPUs or APUs. Did anybody else realize this? Do you know why this is happening or is there a solution?
Thanks!
I have realized that on few Intel systems the AMD GPUs use double the power when they are on 1st slot compared to other PCIe slots. (I don't know about what Nvidia does)
I have tested this with two R9 280x'es and set them to a low power mode at 800mhz cpu/1000mhz memory at about 0.925v both and first GPU used about 18A-20A (at 12v) and the other one used 8A-10A current (checked using GPU-Z). Just to be sure that this was not related to the GPU, I have replaced the placement of the GPUs but still the same for the GPU which is connected to 1st slot.
I do not see this behavior on AMD FX CPUs or APUs. Did anybody else realize this? Do you know why this is happening or is there a solution?
Thanks!
Any tutorial for CPU Mining ? I just can't figure out how to do it
Well, here's a start:
http://forum.max-coin.net/index.php/topic,3.0.html
I dunno about it not being worth it to CPU mine...in 3 days of CPU mining on my i5 3570k at 4GHz I've picked up 2 MAX. Not a lot, but better than a poke in the eye with a sharp stick! It has an onboard Intel graphics chip and won't accept an ATi video card. After I get rich mining with this 260X on this Phenom IIx4 945 rig (6-year-old HP Pavilion), I'll buy an nVidia for the 3570k rig.
Sorry, little off topic but why do you think it does not accept AMD card but Nvidia will work?
So far what people who bought devices learned is that the devices are overpriced and it is much better investment to just buy BTC instead. By the time any of these devices come out, you would be lucky to make 3-5 BTC with them at most. Many will regret not buying BTC as an investment instead. There is no way for consumers to make any profit as long as manufacturers make huge farms with their new devices.
The game is rigged, your device immediately becomes worthless after release. This is why all the companies are having some pre-order scheme going on. It is just too late when you figure out your mistake.
So, why buy the device and bother listening to its noise when you can just buy BTC and look at it's value rise? I would only buy from a company which can ship the device the next day.
So, long story short, no I won't invest in these devices. Also not investing does not mean that you are out of the competition as long as you have BTC. You can let those companies compete with each other and cause increase of BTC prices and make more profit that way. (and if BTC crashes, it wont help if you have a device or not anyway so all the same...)
The game is rigged, your device immediately becomes worthless after release. This is why all the companies are having some pre-order scheme going on. It is just too late when you figure out your mistake.
So, why buy the device and bother listening to its noise when you can just buy BTC and look at it's value rise? I would only buy from a company which can ship the device the next day.
So, long story short, no I won't invest in these devices. Also not investing does not mean that you are out of the competition as long as you have BTC. You can let those companies compete with each other and cause increase of BTC prices and make more profit that way. (and if BTC crashes, it wont help if you have a device or not anyway so all the same...)
If your card is working great can you please post the output of MemtestCL. it's kind of like a memory test for GPU
https://simtk.org/project/xml/downloads.xml?group_id=385
Both my Sapphire R9 290X with Elpida Memory chips throw lots of errors
The errors are in Random blocks Test
Random blocks: 985 errors (0 ms)
https://simtk.org/project/xml/downloads.xml?group_id=385
Both my Sapphire R9 290X with Elpida Memory chips throw lots of errors
The errors are in Random blocks Test
Random blocks: 985 errors (0 ms)
Code:
Test iteration 6 on 128 MiB of memory on device 0 (Hawaii): 0 errors so far
Moving Inversions (ones and zeros): 0 errors (0 ms)
Moving Inversions (random): 0 errors (16 ms)
Memtest86 Walking 8-bit: 0 errors (31 ms)
True Walking zeros (8-bit): 0 errors (16 ms)
True Walking ones (8-bit): 0 errors (15 ms)
Memtest86 Walking zeros (32-bit): 0 errors (78 ms)
Memtest86 Walking ones (32-bit): 0 errors (63 ms)
Random blocks: 985 errors (0 ms)
Memtest86 Modulo-20: 0 errors (171 ms)
Logic (one iteration): 0 errors (0 ms)
Logic (4 iterations): 0 errors (0 ms)
Logic (local memory, one iteration): 0 errors (16 ms)
Logic (local memory, 4 iterations): 0 errors (0 ms)
Moving Inversions (ones and zeros): 0 errors (0 ms)
Moving Inversions (random): 0 errors (16 ms)
Memtest86 Walking 8-bit: 0 errors (31 ms)
True Walking zeros (8-bit): 0 errors (16 ms)
True Walking ones (8-bit): 0 errors (15 ms)
Memtest86 Walking zeros (32-bit): 0 errors (78 ms)
Memtest86 Walking ones (32-bit): 0 errors (63 ms)
Random blocks: 985 errors (0 ms)
Memtest86 Modulo-20: 0 errors (171 ms)
Logic (one iteration): 0 errors (0 ms)
Logic (4 iterations): 0 errors (0 ms)
Logic (local memory, one iteration): 0 errors (16 ms)
Logic (local memory, 4 iterations): 0 errors (0 ms)
You will always get errors because the original memtestcl is broken... you should use the fixed one from svn.
http://devgurus.amd.com/message/1281389#1281389
Well, according to their manufacturing video, they should be producing about 1 board per 1m:30s so Jupiter would take roughly 6 minutes to produce. I am talking about throughput here. So they should be able to produce 1000 boards a day making 250 Jupiters daily. I expect the machines are working automatically anyway and they can have people working in shifts easily. So, the question is, where are all the units and if they are the cause of the recent hash rate increase?
Guess what, they managed to build 500+gh devices, but so far all the devices seem to be streaming into their hosting facility, and they say they are building so few to satisfy the demand quick enough 
Their official video shows they are able to build a board in about every 1m30s. Yet, they say they build like 700 units so far (they should be able to do 250x 550gh devices a day easily)
Their official video shows they are able to build a board in about every 1m30s. Yet, they say they build like 700 units so far (they should be able to do 250x 550gh devices a day easily)Re: [14000GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool
If I setup a p2pool node and want to make it available to public (well it is already available to people who find it :p), is there a list of p2pool instances (for LTC and BTC) somewhere?
I have 1 of foofighter's cases, still unopened in its box as I received it (I realized I wont need it after all). I am willing to sell it for 2.5BTC including shipping with tracking. Please PM me if you are interested.
If you prefer escrow, I have it on sale slightly at a higher price, at bitmit for (2.5BTC auction start) 3BTC(buy now) + 0.2BTC shipping.
https://www.bitmit.net/en/item/63450-bitfury-custom-case
If you prefer escrow, I have it on sale slightly at a higher price, at bitmit for (2.5BTC auction start) 3BTC(buy now) + 0.2BTC shipping.
https://www.bitmit.net/en/item/63450-bitfury-custom-case
Re: [12000GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool
I see higher amount of rejects on p2pool with BFL devices using cgminer compared to other pools. Is that normal? or am I missing some configuration?
Change your difficulty - nearest power of 2 of 30% of your hashrate(so +8 for a LS, +16 for a Single)
So if I have 3 singles running with cgminer, I should set it to 3x16=48 or 16 only?
Re: [12000GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool
Your BFLs will run great on p2pool, or you could just use p2pool as a backup for them.
I see higher amount of rejects on p2pool with BFL devices using cgminer compared to other pools. Is that normal? or am I missing some configuration?
A bit higher than other pools is normal. Non-rejects are worth slightly more on P2Pool to compensate. What reject rate are you getting? The average for the entire P2Pool is 7%, so if you're close to that you're not losing anything. If you're lower you're actually making more than expected.
I see about 5.1% to 5.5% now. How is it that I am making more compared to a pool with 1% fee but very low rejects? Because on a normal pool I get 0.3% rejects only? Wouldnt that mean I would make 4% more on a normal pool?
Re: [12000GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool
Your BFLs will run great on p2pool, or you could just use p2pool as a backup for them.
I see higher amount of rejects on p2pool with BFL devices using cgminer compared to other pools. Is that normal? or am I missing some configuration?
Isokivi, what kind of heatsinks did you use?
If anybody decides to use a paint stripper, first cover the undamaged area around the chip with some aluminium foil to protect it from the heat. First start out slow, so the board has a chance to heat up, and then increase the heat to take it off quickly.
Actually paint stripper is quite safe considering how rudimentary it is. I once managed to change a laptop gpu (yes one of those dreaded large nvidia mcp chips) and using hot air gun and laptop still works, but unfortunately some connections are not perfect I think and once in a while it draws strange stuff to the screen :p
Next time take a paint stripper to remove a damaged chip:)
If anybody decides to use a paint stripper, first cover the undamaged area around the chip with some aluminium foil to protect it from the heat. First start out slow, so the board has a chance to heat up, and then increase the heat to take it off quickly.
Actually paint stripper is quite safe considering how rudimentary it is. I once managed to change a laptop gpu (yes one of those dreaded large nvidia mcp chips) and using hot air gun and laptop still works, but unfortunately some connections are not perfect I think and once in a while it draws strange stuff to the screen :p
I am selling my 96chip slot for 30BTC right now:
https://www.bitmit.net/en/item/61563-380gh-bitcoin-asic-miner-slot-for-30btc
As bonus, I can bundle 256 chip credits (although it is not mentioned on BitMit, after purchase you can send me your address to transfer the credits to).
THEY ARE SOLD, THANKS FOR LOOKING
https://www.bitmit.net/en/item/61563-380gh-bitcoin-asic-miner-slot-for-30btc
As bonus, I can bundle 256 chip credits (although it is not mentioned on BitMit, after purchase you can send me your address to transfer the credits to).
THEY ARE SOLD, THANKS FOR LOOKING
I am selling my 96chip slot for 30BTC right now:
https://www.bitmit.net/en/item/61563-380gh-bitcoin-asic-miner-slot-for-30btc
As bonus, I can bundle 256 chip credits (although it is not mentioned on BitMit, after purchase you can send me your address to transfer the credits to).
THEY ARE SOLD, THANKS FOR LOOKING
https://www.bitmit.net/en/item/61563-380gh-bitcoin-asic-miner-slot-for-30btc
As bonus, I can bundle 256 chip credits (although it is not mentioned on BitMit, after purchase you can send me your address to transfer the credits to).
THEY ARE SOLD, THANKS FOR LOOKING