|
Yep, sounds like bios signature issue. Be sure to remove the previous driver with DDU in safe mode and apply pixel patcher after the new driver install.
|
|
|
|
Actually, if you run the AMDGPU-PRO drivers, you CAN mix them in a rig. The Fiji card may perform slightly worse than with fglrx, but it works.
Since AMDGPU Pro drivers only support GCN3 or newer cards, I couldn't get it to work with my Pitcarin and RX 480 rig on Arch Linux. I had to switch to Windows 7 to be able to use all my cards  https://wiki.archlinux.org/index.php/Xorg#AMDThe support is labeled "experimental" but it IS there. The "experimental" support for GCN1 and 2 cards is for the open-source AMDGPU driver, which doesn't support AMD APP-SDK OpenCL for mining. The proprietary Catalyst drivers on Linux don't support the Polaris cards and the proprietary AMDGPU PRO drivers only support GCN3 and up cards. The Catalyst ReLive drivers on Windows do support GCN1 and up cards. |
|
|
|
Actually, if you run the AMDGPU-PRO drivers, you CAN mix them in a rig. The Fiji card may perform slightly worse than with fglrx, but it works.
Since AMDGPU Pro drivers only support GCN3 or newer cards, I couldn't get it to work with my Pitcarin and RX 480 rig on Arch Linux. I had to switch to Windows 7 to be able to use all my cards https://wiki.archlinux.org/index.php/Xorg#AMD |
|
|
|
That board has three PCI-e slots so you could try up to 3 cards max using PCI-e 1x to 16x powered USB risers. I have a Dell XPS 720 (four PCI-E slots) with the same CPU and it's running three cards. The only problem is you can't access the bios with a newer video card in the primary 16x slot, so I have an old Nvidia 6600 I use when I need to access the Bios. Otherwise it mines just fine with three cards. If you can't get it to work, any B250 motherboard, a Pentium G4400 Celeron processor, a 4GB DDR4 2400/ 2133 RAM stick, RX 470 / RX 570 VGA cards and a 750W / 850W Gold or better PSU would be a good choice for up to 4 cards with risers.
Thanks for the suggestion. i was thinking of getting Gigabyte EP43-UD3L board, which have more pci-e slot shown in gigabyte website. but it only support ddr2 ram. does ram affect mining performance? It has 1 x PCI Express x16 slot and 4 x PCI Express x1 slots. If you want to resuse the hardware you have and can get one cheap enough, that motherboard should easily support 3-4 GPU with powered risers. CPU speed, RAM speed and PCI-E speed are not an issue for GPU mining. The Dell XPS 720 I have uses DDR2 RAM and PCI-E 2.0 slots. Any 4GB of RAM that the motherboard supports is good. The biggest limiting factor in a motherboard for mining is how many PCI-e lanes it has and whether they are shared. How much power can be delivered though the PCI-E slots is also a factor unless you use powered risers. |
|
|
|
so AMD cards arenīt good at all when it comes to zcash mining ?
I am building a new rig and bought 4 rx480 allready.... damn
Cost per hash AMD RX 480 are better than Nvidia for ZCash. With a memory strap bios mod I get ~315 H/s from my RX 480's at ~125 W each. |
|
|
|
|
Researching I found the RX 580 use more power out of the box and are also slightly faster, but can be bios modded to use less power. The RX 480 is easier to setup in a 6+ GPU rig. If both were available and cost the same, I would go with the RX 480, but either is a good choice. Cost-per-hash, the 4GB RX 470 / RX 570 is a better choice for a multi-card rig.
|
|
|
|
|
That board has three PCI-e slots so you could try up to 3 cards max using PCI-e 1x to 16x powered USB risers. I have a Dell XPS 720 (four PCI-E slots) with the same CPU and it's running three cards. The only problem is you can't access the bios with a newer video card in the primary 16x slot, so I have an old Nvidia 6600 I use when I need to access the Bios. Otherwise it mines just fine with three cards. If you can't get it to work, any B250 motherboard, a Pentium G4400 Celeron processor, a 4GB DDR4 2400/ 2133 RAM stick, RX 470 / RX 570 VGA cards and a 750W / 850W Gold or better PSU would be a good choice for up to 4 cards with risers.
|
|
|
|
|
IMO, you would get much more of a bang-for-your-buck by building a one or two card rig with a cheap motherboard, cpu and a RX470/RX570 VGA rather than trying to use the Synology for mining. Any ATX B250 motherboard would be a good choice for up to four cards. You could also pick up a used Dell Optiplex or HP from Craigslist or Goodwill and add a card and risers for a basic cheap rig.
|
|
|
|
Its smart to have identical power supplies so they turn on at the same time or problems arise.
This simply isn't true. You power the cards first or at the same time. No problems arise. I looked in to using a server PSU, but decided against it after hearing they are too loud to use in a living space. I have enough noise already with all the auxillary fans I have going. The EVGA PSU I bought has an ECO mode that keeps the fan off untilit reaches 40% load. The fan is also barely audible. The way he explained that the motherboard PSU should power all the risers was that otherwise it creates a situation where the 2 PSU's fight to regulate the 12V line. https://bitcointalk.org/index.php?topic=1843586.msg18399752#msg18399752Server PSU's can get loud at high loads, but they're pretty quiet at ~70% or lower usage. If you hooked up a card's riser and PCI-E power to a second PSU, there's no power connection between that card and the other PSU. The card will draw what it needs, there's no fighting to regulate anything, this is just silly. Source: I run 8 GPU rigs with dual power supplies. 8 cards is a major speedbump in multiple GPU systems. Usually requires driver/bios mods.
They are giving good info. I suggest you read others' threads on multiple GPU systems. Theres LOTS of good info and things to learn just by going through what they did first.
Also,
They also make connectors that link the motherboard power cables so they power on at the same time. Its smart to have identical power supplies so they turn on at the same time or problems arise.
8 cards is zero issue if you have a motherboard that can handle it. You do NOT need to do some sort of BIOS or Driver mod. The only Driver mod required currently is you have to use Catalyst 16.x for RX 500 to run >5GPU, which just involves copying the drivers into a 17.4.3 installer. If you have a motherboard that supports it, it's just plug em in and turn it on. I think it may depend on the type of risers used. I know some USB risers have a voltage regulator and some do not. I use USB 6-pin risers and checked the outer pins on the USB cable that connects to the 1x PCI-E slot with a multiimeter. There was 3.3V coming from the motherboard. A PCI-E 1x slot also has 3 12V lines connected to it. http://pinouts.ru/Slots/pci_express_pinout.shtml |
|
|
|
|
Those cloks are lower than the stock clocks on many cards so definetly not too high. What damages GPU's is excessive voltage and heat. Otherwise modern GPU's are pretty durable. Normaly the fans wear out before anything else.
|
|
|
|
|
Once quantum computing becomes a reality, GPU mining may become irrelevant. Until then, the decentrailized nature of POW mining isn't going away any time soon IMO.
|
|
|
|
Dont know why you people make it so complicated. http://www.parallelminer.com/product/hp-1200-watt-power-supply-kit-for-gpu-mining-platinum-94-zec-dash-eth/Power the PCI-E power connectors this way, hell you can even power the risers with it, it doesn't matter from my testing because the hot of one plug doesnt run into the neutral of another plug. Just turn on the PCI-E/riser power before you turn the mobo power on. It doesnt even matter if you switch them on and keep the mobo off, the GPU gets idle power but generally this is never enough power to even require the fans to turn on (passive cooling will keep the chip below 40). I looked in to using a server PSU, but decided against it after hearing they are too loud to use in a living space. I have enough noise already with all the auxillary fans I have going. The EVGA PSU I bought has an ECO mode that keeps the fan off untilit reaches 40% load. The fan is also barely audible. The way he explained that the motherboard PSU should power all the risers was that otherwise it creates a situation where the 2 PSU's fight to regulate the 12V line. https://bitcointalk.org/index.php?topic=1843586.msg18399752#msg18399752 |
|
|
|
Hi, I got 5 RX470 but Claymore one recognizes 4.
The AMD Radeon control centers also shows 5.
I use this driver: non-whql-win7-64bit-radeon-software-crimson-relive-17.5.1-may4.exe
Any hints?
Check Device Manager in Windows. If the 5th card is disabled, you need to mod the drivers to use more than 4 cards on Windows 7. https://bitcointalk.org/index.php?topic=712228 |
|
|
|
|
I think getting the drivers and a miner to support it would be a problem. If you can get it to work, something like Monero would probably be your best bet.
|
|
|
|
|
Show Posts
