Anyone have one of these? Asus A B250 Mining Motherboard With 19 PCIe Slots  Isn't that the one where the pcie ports are too close together and usb risers can easily touch each other, shorting out (or frying) if they are bumped or lean a little in either direction? I think someone posted a picture of one with scorched usb risers after that happened, but I can't find it at the moment... You are thinking of the ASRock H110 Pro BTC+. The PCI-E slots are right net to each other in a row and barely have enough space for the usb risers. It's a stupid design. The solder on the back of the risers WILL short out on the metal USB connector unless you insulate them from coming in contact. I filed the back of the risers and put two pieces of electrical tape over them, which solved the problem. Even Biostar made fun of how stupid the design on the ASRock board is. The Asus B250 Mining Expert PCI-E spacing is much better and desen't have that problem.  |
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As soon as I plug in the 14th GPU, I can't get this thing to boot. Any ideas?
What cards and OS? |
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Anyone have one of these? Asus A B250 Mining Motherboard With 19 PCIe Slots What OS can handle 18-19 cards? I would think Linux only, which Linux or any will work? nvoc 0019 does at least 13 simplemining is over 10 I would guess they will be 19 soon if they are not already there. I know 19 looks cool but it is pretty dumb unless you have 5 or more. reason why if you have 1 and it goes down 19 gpus go off line. if you have 3 rigs 6+6+7 and one dies you still have 12 or 13 gpus running. if you have a 2400 watt psu like this http://www.parallelminer.com/product/2400-watt-power-supply-kit-for-gpu-mining-94-efficiency-200-240v-up-to-24-gpu/with a pico psu you could do 19x 1060's with it Even so, it would take a lot of downtime to make up for the upfront savings of not having to buy 3 motherboards, ram, CPU's and drives. 19 cards on a single rig is also a solo mining beast!  |
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It's not the Dag file size, since the current ETH Dag file is nowhere near even 3GB. It's a driver or PCI-E Bios configuration issue. I would uninstall the driver in safe mode using DDU and then reinstall the drivers. I was having a similar issue after adding a GTX 1070 to a rig with AMD cards and changing the PCI-E slot speed for the Nvidia cards in the motherboard Bios to GEN 2 solved it.
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does any one tried to mine something of this coins (MUSIC/ETC/EXP/UBQ) with R9 380? And how much he gets h/s?
There is no difference in hashrate if you mining with same crypto algorithm. All described above are Ethash, so the hashspeed will be same for all of them. I.e. if you mine Ether with 22Mh/s it will be 22Mh/s at EXP or ETC. I think you are wrong here. With Different coins being on a different Epoch, coins like UBIQ's Dag File is much lower and smaller. It will have a faster Hashrate than ETH with the higher DAG File which is bigger. This is why AMD released the Driver optimized for crypto to address the reduced hashrate for larger DAG Files. This only affects AMD cards and not really Nvidia cards. Even with the new driver there is still a difference in hashrate if you test both coins There is no essentially no difference in hash rate (less than 1 MH/s over 8 mixed RX 4XX/5XX 4GB and 8GB cards) between mining UBQ or ETH with the AMD blockchain drivers. https://bitcointalk.org/index.php?topic=1433925.msg21541169#msg21541169 |
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I am currently running a 10 GPU mining rig with only 4GB RAM on Windows 10. Just want to share my experience:
-Boot up takes around 3-5 minutes.
-After around 8 hours of mining if you check back the entire screen and all programs (claymore, afterburner, teamviewer, etc) is laggy/choppy
It seems that memory is all used up after some time and you have to restart the computer if you want to reconfigure things. Otherwise, it mines the same. All good and perfectly well. Mining is not affected. If you want fast ROI and dont mind the lag, id say 4gb RAM is enough.
The cost difference between 4 GB and 8GB of RAM is $60 at most, or less than a week of mining for a 10 card rig. RAM usage by Windows goes up with every new release so if it's already lagging, it's only going to get worse. With a board like the ASRock H110, you can also add more GPU's later without havng to buy additional RAM. |
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Both will have similar hash rates. However, the 8GB cards typically have better memory and overclock better. They also have a better resale value. At less than a $30 per card difference, you're better off with 8GB cards, IMO.
Not cards, i have 8GB cards, im talking about RAM, not VRAM It depends on how many cards and if you're planning to run Windows. For a 6-8 card rig on Windows 10, 4 GB is enough. If you want to run more than that on Windows by mixing AMD + Nvidia, go with at least 8 GB. I have 8 AMD RX series cards and 2 Nvidia cards in a Windows 10 rig with 8 GB and the RAM usage is ~40%. |
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Both will have similar hash rates. However, the 8GB cards typically have better memory and overclock better. They also have a better resale value. At less than a $30 per card difference, you're better off with 8GB cards, IMO.
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For the Core voltage option being disabled in Afterburner, run DDU in safe mode to remove the drivers. Reinstall the drivers and that should fix it. I would try the Polaris Bios Editor v1.6 'one click timing patch' bundled performance timings on the original Bios. If you have memory errors, reduce the memory clock by 25 MHz until there are no more errors. https://github.com/jaschaknack/PolarisBiosEditor |
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Stop talk a shit about 30,5-31 mh/s with rx 580!!! Yes, its possible to get 31 mh/s but how long?? Rig will shut down after 1 hour, 3 hour..in the best case rig will shut down after 24 h.
I have 3 Sapphire RX 580 8GB Special Edition cards (blue faceplate) with Samsung + Hynix dual timing straps. Easily got them to 30-31 MH/s with 855-865 MH/s DCR dual mining after just flashing the cards using the PBE v 1.6 'one click timing patch' bundled performance straps Bios mod. Cards run very stable with zero memory errors using a 1150 MHz core clock, 2100-2200 MHz memory, -96 mV undervolt and -15% power limit. Awesome cards!  |
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Its the difficulty bomb, mining eth is sure going to be very unprofitable soon and looks like the prices aren't getting any better, hopefully we can mine other stuff, check out monero if you're on amd and vtc if nvidia
Right now the block reward is 5 ETH with 30 second block times, which is 10 ETH generated per minute at an artificially high difficulty from the ICE AGE ramp up's. After the Byzantium fork the block reward will be ~3 ETH every 15 seconds, or 12 ETH generated per minute and a return to a lower network difficulty predicated on the total hash rate. Assuming the price stays the same, can you explain how mining ETH will be less profitable after the fork in three weeks than it has been in the last couple of months with the ICE AGE? |
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The Byzantium fork planned for the second week of October will roll back the ICE AGE difficulty ramp ups and return to the network difficulty predicated on the total hash rate along with a return to 15 second block times and a reward reduction to ~3 ETH. That should make the ETH mining payouts more than they have been in the last couple of months. https://www.youtube.com/watch?v=gxtftZB7_jA&feature=youtu.be&t=1458 |
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Good I have some suggestions
Instead of going with 3 PSUs try to go with 2 or even 1 PSU.
You can add 1 more GPU by using M2 to PCIE adapter without any issue.
Also, Instead of purchasing only 6x PCIE risers buy atleast 12 as a backup, their QA is sketchy.
Good Luck for your next built.
Yeah, definitely. You do realise it'll take you one and a half years to get your investment back?... IF profitability stays at today's levels...
Only if you mine something dumb like Eth, my 1080 Ti's currently have 170 days to ROI at only 180 watts, all hardware included.To make up $5000 in 170 days, you would need to make $30 a day or $5 per card WITHOUT power costs included. That's NOT going to happen. |
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Over $4000 in cards and trying to save $ on a PSU, that's the most important part of rig for stability. Those PSU's are NOT made for mining rigs! If you plan on mining for the long term, you NEED a quality PSU that can handle the load you are asking of it. Go with a EVGA 1000 W P2 and a 750 W P2. That will give you 10 PCI-E connectors. 4 of the 8-PIN PCI-E cables will have a 6-pin pigtail that you will need for the cards and for the other two you will need to use a PCI-E 8-pin to dual 6+2 spiltter or order two more additional PCI-E 8-pin + 6-pin pigtail cables from EVGA. You can use the remaining 4 PCI-E 8-pin (6+2) cables to power the PCI-E 6-pin risers, using PCI-E 8-pin to dual 6+2 spiltters. You can also go with a single EVGA 1600 P2/T2 PSU that has 9 PCI-E connectors and 5 8-pin + 6-pin cables. https://www.aliexpress.com/item/20CM-Black-Sleeved-8-Pin-PCI-E-GPU-to-Dual-8-6-2-Pin-Splitter-PC/32688175733.html |
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No, the back of the risers would short on the metal usb connector in the adjacent slot and the cards would not be recognized. The dropping hash could be from too much overclocking. You can use HWinfo to check for memory errors and ideally ther should be none. If there are more than a few, you should lower the memory clock by 25 MHz until there are no more errors.
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Right now trying to figure out how many ETH per month you can get is pointless until the Byzantium hard fork scheduled for the second week of October is implemented. That will bring a roll back of all the ICE AGE difficulty ramp ups and return the network to where the difficulty is predicated on the total hashrate, as well as returning the block times back to 15 seconds. The block reward will also be reduced to ~3 ETH at the same time, so that inflation stays about the same as it is now with the ICE AGE ramp up and increased block times.
There will also be one more pre-programmed ICE AGE difficulty ramp up of ~20% on September 24th until the Byzantium fork is implemented.
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The AMD HD 7850 2GB gets ~520 MH/s @ 130 W. You can find them used for ~$60.
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GPU's MODEL NAME: Zotac AMP! Exteme GTX 1070
VRAM: 8GB
CORE/MEMORY CLOCK: +110 MHz Core / +650 MHz Mem
HASHRATE: ~490 H/s @ 185 W
MINER SOFTWARE: EWBF 0.3.4b
OS: Windows 10 Pro x64
TDP(OPTIONAL): 75%
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Just ordered the ASUS B250 at Newegg for $150(not bad!).. It's gonna take a while to get 19 GPUs to fill it but it will happen. I'm thinking a new rig design. 7 cards on the 1st row, 6 on 2nd & another 6 on top. Or maybe something completely different. 19 GPUs is crazy
I'm getting ready by building a double-wide BBT dual tier open air frame https://www.youtube.com/watch?v=D5xNrlxsCVshttps://www.youtube.com/watch?v=MA_sH4q2toU&feature=youtu.be&t=283 19 GPU Double Tier Frame - (Dimensions 44.5" W x 16" D x 17" H): Build Cuts: For the Angled Aluminum: -First 8ft (96") Angled Aluminum; 95.5" use 0.5" waste 3 x 17" cuts (51" use) (Case Height) 1 x 44.5" cut (44.5" use) (Case Width) -Second 8ft (96") Angled Aluminum; 93.5" use 2.5" waste 1 x 17" cuts (17" use) (Case Height) 2 x 16" cuts (32" use) (Case Depth) 1 x 44.5" cut (44.5" use) (Case Width) -Third 8ft (96") Angled Aluminum; 46.5" use 19.5" left over 2 x 16" cuts (32" use) (Case Depth) 1 x 44.5" cut (44.5" use) (Case Width) -Fourth 8ft (96") Angled Aluminum; 89" use 7" waste 2 x 44.5" cut (89" use) (Case Width) And for the wood: -First 1" x 3" 8ft (96") Pine; 96" use no waste 6 cuts of 16" (96" use) (Case Bottom) -Second 1" x 3" 8ft (96") Pine; 96" use no waste 6 cuts of 16" (96" use) (Case Bottom) - 1" x 1" 4ft (48") Oak; 44.5" use 3.5" left over 1 x cut of 44.5" (44.5" use) (Card Bracket Support) Not bad dude! Yeah I considered 2 rows for this too. How much you spend on parts for this though? I've been using estoconnectors.com + T slots from 80/20(to hold the risers/cards) & love the black finish + they're super & cheap easy to build! This one was ~$90 in 3/4" x 1/8" angled aluminum and wood at Lowe's. Definitely need to go with the thicker aluminum angles because of the weight of all the GPU's. The 1/16" bends pretty easy. Those T-slot builds are cool too and easier to rearrange. |
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