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Alternate cryptocurrencies / Mining (Altcoins) / Re: 1070gtx + biostar ?

on: June 15, 2017, 06:56:59 PM

Quote I like the bio star but the cpu should be a better one and you can get away with 1 stick of ram. I use these http://www.ebay.com/itm/SR2L1-Intel-Intel-Core-i5-6400T-Processor-for-V230ICUT-07-All-In-One-Desktop-/142408684804? any cooler will do. I mine with the cpu xmr pays for itself If he is not going to mine with the CPU, what is the downside of the G3900? Or, what is the upside of the i5-6400T which justifies its higher cost? I use the Pentium G4400T on this mobo with 4 EVGA 1080Ti cards with no problem.

Alternate cryptocurrencies / Mining (Altcoins) / Nvidia to release mining-only GPU?

on: May 30, 2017, 09:46:29 PM

FWIW, over at forum.z.cash there is a posting from May 26 where the poster, a Chinese miner, tells about an upcoming Nvidia product which is tailored to mining only - no video ports, no game playing. He says: https://forum.z.cash/t/nvidia-to-release-mining-only-gpus-soon/16257 "Ok bit of news from China... Nvidia will be releasing Mining Only GPUs soon... These will be GPUs without any display panels, no DP, no HDMI, no DVI... just a card and cooler. They will only be able to mine, they will not work for things such as playing games or rendering video, etc... "Just a heads up on whats to come... If your thinking of building an Nvidia mining rig now... might be best to wait... "I'm trying to find out more, cousin works for nviida, she told me about htem a week ago, and people are talking about them all around in ZCash groups in china now... when i find out any more I will update. "Otherwise I think it would be smart to wait and see... i dont think they they will be overpriced if they are aimed at miners and mining farms.. else why would they make them... ? "There would be no point in making a mining specific card that does nothing else but mine ... and then charge more than the gaming cards... no one is going to pay more money for less hashrate per dollar invested in the GPU. "Nvidia doesn't like miners using their mainstream gaming cards for mining, they do not like dealing with warranty issues on the cards, so instead of fighting it, they are starting to embrace mining (as far as I can see). "Even if they do end up costing 2000 or 5000$ a GPU, if the hashrate is worth it and makes it a better buy... then it is a better buy... and if they are coming out with these cards... we should wait to see if these cards will kill the current hashrate on existing GTX cards. "I just dont think its smart to build a GTX miner without knowing more about these cards, as they will be coming out ... so..."

Alternate cryptocurrencies / Mining (Altcoins) / Re: what 470? Nitro+, STRIX or XFX470

on: April 21, 2017, 10:47:08 PM

I'm using 4 XFX 470 4GB cards, stock, to mine Zcash. They have been rock solid. Each card has two easily replaceable fans, which is nice, in case a fan dies. I'm happy with them.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Setting up new rig - mobo is Asrock Fatal1ty Killer Z87 - fails with 3xGPU

on: April 18, 2017, 01:18:37 AM

Quote from: ZimmyK on April 18, 2017, 12:18:54 AM Quote from: fbminers on April 17, 2017, 11:45:30 PM Do it Quote from: ZimmyK on April 17, 2017, 09:32:59 PM Is Power Connector 22 on the motherboard being powered by the power supply? Page 27 of the manual says, "Please connect this connector with a hard disk power connector when two graphics cards are installed on this motherboard." I have this same board and it works with 7 gpus. In the pci express x1 slots you will have to do this: Sorry for my bad English That's interesting. Do you have any other references or documentation which explains why this works? I suppose that you have to jumper each PCIE x1 slot, right? The documentation is here: https://bitcointalk.org/index.php?topic=36061.0 https://bitcointalk.org/index.php?topic=102547.msg1124000#msg1124000

Alternate cryptocurrencies / Mining (Altcoins) / Re: Setting up new rig - mobo is Asrock Fatal1ty Killer Z87 - fails with 3xGPU

on: April 18, 2017, 12:18:54 AM

Quote from: fbminers on April 17, 2017, 11:45:30 PM Do it Quote from: ZimmyK on April 17, 2017, 09:32:59 PM Is Power Connector 22 on the motherboard being powered by the power supply? Page 27 of the manual says, "Please connect this connector with a hard disk power connector when two graphics cards are installed on this motherboard." I have this same board and it works with 7 gpus. In the pci express x1 slots you will have to do this: Sorry for my bad English That's interesting. Do you have any other references or documentation which explains why this works? I suppose that you have to jumper each PCIE x1 slot, right?

Alternate cryptocurrencies / Mining (Altcoins) / Re: Setting up new rig - mobo is Asrock Fatal1ty Killer Z87 - fails with 3xGPU

on: April 17, 2017, 09:32:59 PM

Quote from: bobben2 on April 12, 2017, 10:03:06 AM I picked up a second hand mobo for a good price - Asrock Fatal1ty Killer Z87 board. It has 7 pcie slots - 3 x 16 and 4 x 1, so I thought it should be good for gpu-mining. I got Win 7 installed with drivers and connected 2 x RX 470 cards directly into two of the x16 slots and claymore eth miner was running fine. As soon as I install a 3rd card in one of the pcie x 1 slots via powered riser, then upon reboot the rig hangs with all the gpu fans spinning seemingly at max (It was quite loud). I know the riser is good as I was using that one in another rig. In the BIOS there is only option to set the x16 slots to Gen 1, Gen 2 and Auto. I had all three set to Auto, so that didnt work. There is no option to set the pcie 1 slots to Gen 1 as they are already Gen 1, right? I never got so far as to try setting the x16 slots to Gen 1. If that fails what else should I try? The PSU is a 760Watt Corsair AX760, the kill-a-watt with two cards mining eth showed 230Watts so power is ok. Is Power Connector 22 on the motherboard being powered by the power supply? Page 27 of the manual says, "Please connect this connector with a hard disk power connector when two graphics cards are installed on this motherboard."

Alternate cryptocurrencies / Mining (Altcoins) / Re: GPU & CPU BENCHMARKS FOR ZCASH MINING!

on: April 11, 2017, 03:54:58 PM

CPU CPU's MODEL NAME: Intel i7-6850K 3.60 GHz HASHRATE: 40 sols/s MINER SOFTWARE: nheqminer v0.4b PARAMETERS: 11 threads OS: Windows 10 EXTRA CONFIG(OPTIONAL): 32 GB RAM, 4 channel configuration GPU GPU's MODEL NAME: XFX RX-470 VRAM: 4 GB CORE/MEMORY CLOCK:1200/1750 MHz HASHRATE: 278 Sol/s MINER SOFTWARE: Claymore 12.4 OS: Windows 10 CPU CPU's MODEL NAME: Intel Celeron G1820T 2.40 GHz HASHRATE: 3 Sols/s MINER SOFTWARE: nheqminer v0.4b PARAMETERS: 3 threads OS: Windows 10 EXTRA CONFIG(OPTIONAL): 16 GB RAM, dual channel configuration GPU GPU's MODEL NAME: EVGA GTX 1070 Gaming ACX 3.0 6171-KR VRAM: 8 GB CORE/MEMORY CLOCK: 1506/8008 MHz HASHRATE: 430 Sol/s MINER SOFTWARE: EWBF 0.3.3b OS: Windows 10

Alternate cryptocurrencies / Mining (Altcoins) / Re: Claymore's ZCash AMD GPU Miner v9.0

on: December 07, 2016, 06:51:36 PM

Quote from: toptek on December 07, 2016, 06:33:44 PM Quote from: ZimmyK on December 07, 2016, 06:27:26 PM First post. I'm using three identical XFX RX 470 4 GB cards in an ASUS X99 Deluxe II motherboard, 6 pcie 40 lane slots. Windows 10 64 bit. 32GB main memory (8GB per quad memory controller channel) Using Claymore v8.0 and v9.0 AMD drivers tried are 16.9.2, 16.7.3 (from the XFX install dvd); (15.12 incompatible with RX 470) Claymore recognizes all three cards, but hashrates are significantly different (v 9.0): GPU0 = 66 H/S GPU1 = 198 H/S GPU2 = 70 H/S intensity = 6 for all cards. config file treats all cards identically. Help me understand why GPU0 and GPU2 significantly underperform. What is the problem? Thx may have to reset them all with afterburner or a program similar to afterburner, that can reset to default setting . it maybe hashing lower because the profile it is using it clocked wrong, Ive had it happen a few times so i looked at it with after burner sure enough they were under clocked due to changes that either claymore didn't adjust right or the drivers didn't understand what claymore was asking it to do or it was stuck on a profile i have no idea were it came form . even with the VM @ 16 GIB and using Code: setx GPU_FORCE_64BIT_PTR 0 setx GPU_MAX_HEAP_SIZE 100 setx GPU_USE_SYNC_OBJECTS 1 setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_SINGLE_ALLOC_PERCENT 100 I still had to do a reset to default in some cases i even had to reinstall the drivers on a multi card rig once I did they all worked great till some thing else changed like a new driver update or miner update then i have do it again which makes sense . Thanks for the recommendation. I'll investigate per your suggestions.

Alternate cryptocurrencies / Mining (Altcoins) / Re: Claymore's ZCash AMD GPU Miner v9.0

on: December 07, 2016, 06:27:26 PM

First post. I'm using three identical XFX RX 470 4 GB cards in an ASUS X99 Deluxe II motherboard, 6 pcie 40 lane slots. Windows 10 64 bit. 32GB main memory (8GB per quad memory controller channel) Using Claymore v8.0 and v9.0 AMD drivers tried are 16.9.2, 16.7.3 (from the XFX install dvd); (15.12 incompatible with RX 470) Claymore recognizes all three cards, but hashrates are significantly different (v 9.0): GPU0 = 66 H/S GPU1 = 198 H/S GPU2 = 70 H/S intensity = 6 for all cards. config file treats all cards identically. Help me understand why GPU0 and GPU2 significantly underperform. What is the problem? Thx

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