did you downloaded the same BIOS to All cards? What is the memory of the cards?
You can not mix BIOS from differnet Cards and different Memory.
Topic: claymore eth hashrate drop with multiple cards (Read 145 times)
- no it's the bios from anorak vbios collection so it should be okay
- clocks 1150/2100 and some undervolt might be okay
- 550w is enough, system is only 50w , cards 200 each
specs
Intel Celeron G3930
ASUS PRIME H270-PLUS
60gb ssd
4gb ram
- clocks 1150/2100 and some undervolt might be okay
- 550w is enough, system is only 50w , cards 200 each
specs
Intel Celeron G3930
ASUS PRIME H270-PLUS
60gb ssd
4gb ram
- You might be flashed the wrong bios for your card(s)
ppl downloading bios files from internet , and they have no clue , those bios files version number is probably different than what they have on they card with the same model number ...
I hope you saved your original bios files ..
my suggestion will be , flash back the original bios files for each cards !!! you should saved the bios for each cards separetly ... so two saved bios for each 480 , one for the 470 nad for the 570 , and try mining, see how the cards working with original bios.... make sure you rsetting all overclocking , undervolting software u used
-or you just have no idea how properly overclock undervolt your cards if you have a modded bios
-or your 2x550watts psu not enough ...
If you have your system on one psu , cpu-mobo-mem-hdd and the 2 rx480 on the same 550w psu , that can be a problem also ...
Read this topic about rx 480 power usage
full system spec would be great , can be helpful to estimate your rig power usage
ppl downloading bios files from internet , and they have no clue , those bios files version number is probably different than what they have on they card with the same model number ...
I hope you saved your original bios files ..
my suggestion will be , flash back the original bios files for each cards !!! you should saved the bios for each cards separetly ... so two saved bios for each 480 , one for the 470 nad for the 570 , and try mining, see how the cards working with original bios.... make sure you rsetting all overclocking , undervolting software u used
-or you just have no idea how properly overclock undervolt your cards if you have a modded bios
-or your 2x550watts psu not enough ...
If you have your system on one psu , cpu-mobo-mem-hdd and the 2 rx480 on the same 550w psu , that can be a problem also ...
Read this topic about rx 480 power usage
full system spec would be great , can be helpful to estimate your rig power usage
Hello, I have rig with 2x rx 480 1x 470 1x 570, I flashed anoraks moded bios to all cards, first I tried 1 card only in the system, it gave me 29+mhs, overclocked... I plugged in 4 cards and the hashrate for the 2x 480 started at 29 with miner restart it dropped to 25 and now I can get only 25max, I tried flashing it again and changing few settings with overclocking but it's the same, I don't think it's problem with psu because I have 2x 550W. I don' know whats the problem... (when I tried again only 1 card, eth solo hashrate was 31.5mhs which is a bit over i think 
(samsung memory) then again ony 25 with multiple cards....) (the hashrate for monero is 740hs for each card) any help appreciated
(samsung memory) then again ony 25 with multiple cards....) (the hashrate for monero is 740hs for each card) any help appreciated Jump to: