The motherboard will use about 60 W. I have a 13 RX 580 dual mining rig on the ASRock H110 Pro BTC+ with a triple ATX PSU setup. You need to get a power meter so you can find out exactly how much power is being pulled from the wall. For maximum efficiency and longevity of your PSU, you don't want to run at more than 80% of the rated capacity. I have all three PSU's joined with a triple ATX cable so they come on and off together when the main PSU on the motherboard turns on/off. You also need to make sure you have enough PCI-E connectors for all the VGA power connectors and risers. https://www.aliexpress.com/item/24-Pin-Power-Supply-Synchronizer-Extension-Cable-20-4Pin-Triple-PSU-ATX-Power-Supply-Adapter-Cable/32845655579.html?Total system wattage: 2239 W EVGA 1600 W T2: 13x risers + Motherboard 4 x Sapphire Nitro+ SE RX 580 1193 - 1198 W ----- EVGA 1200 P2 VGA Only: 4 x Sapphire Nitro+ RX 580 1 x Asus RX 480 542 - 543 W ----- EVGA 1000 P2 VGA Only: 1 x Asus RX 580 1 x Asus RX 480 1 x MSI Gaming X RX 580 1 x Sapphire Nitro+ RX 580 496 - 498 W |
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Other than possibly having a better chance of coming with better memory, there is not much difference in hash rate between 4GB and 8GB cards of the same model. The main difference would be a better resale value in the future. Though IMO, it's not worth paying more than an extra $25 per card.
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Performance is about the same, but the AMD blockchain drivers have an 8 card limit. The Crimson Relive 17.11.x and Adrenalin 17.12.x drivers let you run at least 13 cards and are compatible with the Windows 10 v1709 fall creators update.
Maybe you can tell : Adrenalin 17.12.x can handle 14 cards under windows ? Many people report the motherboards won't POST with 14 or more GPU's. I believe 13 AMD cards is the limit under Windows. My ASRock H110 Pro BTC+ works fine with 13 RX 580 under Windows v1709 with the 17.12.2 drivers. https://bitcointalk.org/index.php?topic=2504064.msg27496480#msg27496480even with Asus 250 ? The Asus B250 mining expert motherboard requires Nvidia P106 mining cards to even POST with more than 13 cards. Otherwise 13 cards is the max. |
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Performance is about the same, but the AMD blockchain drivers have an 8 card limit. The Crimson Relive 17.11.x and Adrenalin 17.12.x drivers let you run at least 13 cards and are compatible with the Windows 10 v1709 fall creators update.
Maybe you can tell : Adrenalin 17.12.x can handle 14 cards under windows ? Many people report the motherboards won't POST with 14 or more GPU's. I believe 13 AMD cards is the current limit under Windows v1709. My ASRock H110 Pro BTC+ works fine with 13 RX 580 under Windows v1709 with the 17.12.2 drivers. https://bitcointalk.org/index.php?topic=2504064.msg27496480#msg27496480 |
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Performance is about the same, but the AMD blockchain drivers have an 8 card limit. The Crimson Relive 17.11.x and Adrenalin 17.12.x drivers let you run at least 13 cards and are compatible with the Windows 10 v1709 fall creators update.
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Best chance is to sign-up for auto notify stock alerts on the retailer websites or nowinstock.net. Even retailers have marked up new stock 10-25% compared to what they were a month ago.
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GPU shortages caused by a substantial increase in altcoin profitability has caused all GPU's to dissapear from the normal retail channels, leaving resellers to dictate the pricing on GPU's for immediate delivery.
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You can't run 19 cards on the Asus B250 mining expert motherboard without adding at least 6 Nvidia P106 mining cards. Otherwise 13 cards is the max.
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Other than possibly having a better chance of coming with better memory, there is not much difference in hash rate between 4GB and 8GB cards of the same model. The main difference would be a better resale value in the future, though IMO it's not worth paying an extra $30 per card, especially on a mid-range card like Sapphire Pulse.
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I'm running Windows 10 Pro v1709 and it's taking 50GB> of the system drive and that is with 20GB virtrual memory and 4.5GB reserved for restore points. You can try running ccleaner to cleanup old temp and windows error reporting files. Also delete old restore points and old driver setup files. If you did an update of the existing installation instead of a clean install, your old Windows installation will be in a Windows.old folder on the system drive. You can delete that folder to save space as well.
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I have never used Nicehash. It's an easy way to get started with mining on your home PC, but for that convinience they take a cut of your profits and you only have the option to cash out BTC. I find it a better strategy to mine coins that are undervalued and HODL for the right time to sell.
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Profit calculators are just showing profitability based on what you would receive if you cashed out the coins you mined at that moment. They can't predict what the profitablity will be the next day or even the next hour. That's why mining the current most profitable coin that hour is pointless. By the time you accumulate enough coins to cash out, the profitability will have changed. Conversely, what the profit calculator showed as a $6-$7 per day profit, will more often than not be a $4-$5 profit by the time you cash out on the pool and if you were to sell right away. A much better indicator is the average profitability over 3 days and 7 days. By mining and HODLing coins, you can determine the best time to sell. So what the calulator was showing as a $2-3 profit per day, becomes $5-$7+ per day if you wait for the right time to sell.
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I just use the Microsoft media creation tool to create a bootable flash drive with the latest build and always nuke the system drive to do a clean install. The media creation tool automatically creats a bootable flash drive with the latest Windows 10 build and updates. https://support.microsoft.com/en-us/help/15088/windows-create-installation-mediahttps://www.techspot.com/downloads/6734-windows-10-installation-tool.htmlThen I unplug all the x1 riser connectors except for the one in the primary x16 slot. The only change I make in the Bios is to make sure to boot off of the UEFI installation partion on the flash drive. After Windows installs I run DDU in safe mode to remove the existing driver and set Windows to not automatically install drivers. Then I shutdown, connect all the risers back in the PCI-E slots and install the latest driver. I also set a group policy to disable driver updates from Windows Updates. In the Windows 10 Pro Group Policy Editor you can keep Windows Update from updating the the drivers. gpedit ==> Computer Configuration ==> Administrative Templates ==> Windows Components ==> Windows Update and set 'Do not include drivers with Windows Update' to enabled. |
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The Windows 10 v1709 Fall Creators Update a major Windows update, especially since it added the capability to run 13+ GPU's of the same type, instead of just 8. The AMD blockchain driver came out before the v1709 Fall Creators Update and was not designed or tested to be compatible with that build. In fact I remember at the time AMD had to release new Crimson Relive drivers that were compatible with the Fall Creators Update and the new compute mode instead of the blockchain driver for compute workloads. https://www.guru3d.com/files-details/radeon-software-crimson-relive-fall-creators-update-beta-driver-download.htmlIn any case, since it wasen't designed to run with those drivers, you don't gain anything from running the blockchain driver with v1709 and more than likely, it will cause issues. You are better off with v1703 if you want to run the AMD blockchain drivers. When I tried running the blockchain drivers with v1709 it created all sorts of UI and taskbar lockups. |
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Here are my fan control, overclock and undervolt settings for my 13 card mixed RX 580 13 card rig dual mining. You have to find out the settings for each of your cards. -tstop 76
-tt -34,-49,-42,-35,-23,-6,-19,-33,-44,-21,-20,-25,-10
-cclock 1200,1200,1200,1200,1200,1200,1200,1200,1200,1200,1200,1200,1200
-mclock 1950,1950,1950,2220,2050,2075,2050,2075,2220,2250,2050,2250,2075
-powlim 0,-15,-15,-15,-15,-15,-15,-5,-5,-15,-15,-15,-15
-cvddc 1050,950,950,850,850,850,850,900,900,850,850,850,900
-mvddc 1050,950,950,850,850,850,850,900,900,850,850,850,900  RX 570's can't handle as much of an undervolt compared to RX 580's. -tstop 76
-tt -77,-69,-52,-19,-20,-64
-cclock 1200,1200,1200,1200,1200,1200
-mclock 2075,2075,2050,2075,2020,2075
-powlim -15,-15,-5,-15,-5,-10
-cvddc 925,925,925,950,950,925
-mvddc 925,925,925,950,950,925  |
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