So there is some information about my newest build
Updated with pictures and some additional info 23/sept/2016
My project is completed today all , 16 cards installed with custom ROM's, Take me forever to mod all those BIOSes . YEP , i have 12 XFX rx 480 , same model number , but i had to create 7 different rom for those cards to work stable. I was not able to use 1 modded bios for all 12 cards . Higher ASIC quality cards have more overclocking potential for sure
, and much easier to mod those rom files for those cards:) Also i got 4 Nitro 8GB OC , those card have 3 different BIOSes . ( 13-2E3470U.X4L / 13-2E3470U.X51 / 113-2E3472U.053 ) Rom files are not interchangeable . You can flash them to another nitro , but then your hashrate will drop to lower 20's or under or just going up and down. Some of my card running over 30MH/s some is between 29.2-30MH/s STABLE !
My first priority was , creating a custom rom , with lower power draw and higher hash rate than stock .
My Build Total Hashrate is : 480 MH/s
Total Power draw at the wall : 2439Watts / 120volts
Still working on my setup for lower power draw
Parts :
1.00” X 1.00” Square aluminum tubingLocal hardware store
Fiber cement siding board as a
motherboard tray ( for safety reason i would not recomending
any kind of wood as a mobo tray . There is a high amps running all over
if something going wrong ,
It can be a fire hazard !!!
Local hardware store , Lowe , Home Depot3 Motherboards with cpu / 8GB mem
2x
ASRock H97 anniversary edition http://www.asrock.com/mb/intel/h97%20anniversary/ 1x
GigaByte GA-X99M-Gaming 5 (rev. 1.0)
http://www.gigabyte.us/products/product-page.aspx?pid=5221&dl=1#ov3 PSU 1x
EVGA SUPERNOVA 1600http://www.evga.com/articles/00840/1x
Corsair AXi Series, AX1500ihttp://www.corsair.com/en/company/press-release/corsair-ax1500i-the-worlds-first-1500-watt-80-plus-titanium-psu-now-available 1x
Corsair AX860i http://www.corsair.com/en-us/ax860i-digital-atx-power-supply-860-watt-80-plus-platinum-certified-fully-modular-psu16x PCI-E 16x to 1x Powered Riser Adapter Card w/ 50cm USB 3.0 Extension Cable & MOLEX to SATA Power Cable
easy to find on amazon , ebay
3x WeMo Insight Switch Smart Plug with Energy Monitoring, Wi-Fi
http://www.belkin.com/us/p/P-F7C029/ Best way to monitor energy usage and remotley restart , turn on , off your builds
And the most important
16 x RX 480 card .
13 arrived , 3 its on the wayI had to shop around a little bit , bc this card had a very limited availability when i placed my orders , so i got few from amazon , ebay , newegg
All cards have 8GB samsung memory , 4 x shappire nitro , 12 xfx , 1 MSI ( for my PC )
3x 120GB SSD hard drive
After placed everything together , installed win 10 on the SSDs , before connected to internet , blocked all automatic updates , downloads , reportings , sharings ect ...used Win 10 built in group policy editor , to prevent the system crashing from some stupid forced driver update by Microsoft . Then installed Intel inf utility , then the RX 480 driver with one RX 480 connected to the mobo ! if all 6 card was connected , AMD driver installation hang during install ...
After installation completed with 1 CARD connected ,set the virtual memory to 16GB min (, turned off the pc , connected another 5 card , WIN 10 booted up , recognized all the cards ...
TIMEOUT 90
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
EthDcrMiner64.exe -epool eth-us-west1.nanopool.org:9999 -ewal 0xmyethwallletaddress/workername
Fired up the bat file , the miner started hashing with 148-149MH/s , at this point it was pulling around 1100 Watts at the wall from a 120 Volts outlet . It was running stable for a few hours , then it was time to cut back that energy usage
After a little playing with wattman settings i was able to manage the energy usage down to 725-750Watts so it saved me 350 watts / mobo or 700 watts from the entire setup with 2 mobo/12cards
I let the 2 mobo with the same settings running for a few hours , it was not any stability issue , so cranked up the memory a little bit one by one under wattman settings to 2050 (8200) hash rate went up to 151-152MH/s then it pulled around 770Watts at the wall ...., both mobos running with this setting more than 24 hours without any problem .
For underclocking i reduced the gpu speed , voltage , memory voltage , target temp , power limit .
Dont want to post my settings yet , still testing the stability and will increase the mem speeds.
I was able to run my setup for 3 days with 162MH/s each mobo , with some high mem speed settings , but there was a lot of reboots , wattman reset the tune settings to factory default ... so i had to tune again one by one each 12 cards ...
was not able to sucessful underclock the miner with any other tune program , used ASUS GPU tweak , MSI afterburner..etc
wattman the only one worked for me the way i want
And there is some picrures :
