i agree .. cross fire is a waste for mining ...
it is also better for trouble shooting with out it plugged in
1040 core and 1500 mem is a nice lower electric cost solution and much more stable for most cards
good luck
Topic: How to get +1300Kh/s with 2 280x ? (Read 785 times)
I have 2 r9 280x connected, without crossfire on the same motherboard
I use -I 13 -g 2 -w 256 --shaders 2048 and I get a maximum speed of 1100 kh/s.
Do you know what line or what should I do to get around 1400 kh/s?
My fan is at 100 power, tem is steady around 60-65 degrees and i''m using cgminer 3.5.0
I use -I 13 -g 2 -w 256 --shaders 2048 and I get a maximum speed of 1100 kh/s.
Do you know what line or what should I do to get around 1400 kh/s?
My fan is at 100 power, tem is steady around 60-65 degrees and i''m using cgminer 3.5.0
my advice is: don't use crossfire , with 2 graphic cards u can get 1400 or 1480kh/s
that script it what i use
cgminer.exe --scrypt -o http://stratum4 -u user -p 123456 -I 13 -g 2 -w 256 --thread-concurrency 8193 --shaders 2048 --gpu-powertune 20 --temp-cutoff 90 --temp-overheat 85 --temp-target 71 --gpu-fan 43-100 --auto-fan --gpu-engine 1052 --gpu-memclock 1498
my another advice is: if your card is new not burn it now just use 530 kh/s after u can burn ,i know saphire is overclocked but is like a new car u need go easy
thats script run 530 kh/s
cgminer.exe --scrypt -o http://stratum -u user -p 123456 -I 14 -g 1 -w 256 --thread-concurrency 15232 --auto-fan --temp-target 65
My card 7970 - ASUS x 2 (1420 Kh/s):
cgminer.conf
cgminer.conf
Code:
{
"pools" : [
{
"url" : "POOL",
"user" : "USER",
"pass" : "PASSWORD"
},
{
"url" : "POOL",
"user" : "USER",
"pass" : "PASSWORD"
}
],
"api-listen" : true,
"intensity" : "19",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"auto-fan" : true,
"temp-cutoff" : "85",
"temp-overheat" : "75",
"temp-target" : "70",
"expiry" : "30",
"gpu-dyninterval" : "7",
"log" : "5",
"queue" : "1",
"retry-pause" : "5",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"shaders" : "2048",
"thread-concurrency" : "24768",
"failover-only" : true,
"gpu-thread" : "1",
"gpu-engine" : "1100",
"sharethreads" : "32",
"lookup-gap" : "2",
"gpu-powertune" : "20",
"gpu-memclock" : "1500"
}
"pools" : [
{
"url" : "POOL",
"user" : "USER",
"pass" : "PASSWORD"
},
{
"url" : "POOL",
"user" : "USER",
"pass" : "PASSWORD"
}
],
"api-listen" : true,
"intensity" : "19",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"auto-fan" : true,
"temp-cutoff" : "85",
"temp-overheat" : "75",
"temp-target" : "70",
"expiry" : "30",
"gpu-dyninterval" : "7",
"log" : "5",
"queue" : "1",
"retry-pause" : "5",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"shaders" : "2048",
"thread-concurrency" : "24768",
"failover-only" : true,
"gpu-thread" : "1",
"gpu-engine" : "1100",
"sharethreads" : "32",
"lookup-gap" : "2",
"gpu-powertune" : "20",
"gpu-memclock" : "1500"
}
Hey there, so let me first say i got a Sapphire Vapor-X 280x.
With that being said let me tell you i'm getting aroun 700-730kh/s.
My temp is around 69C and my fan is running at around 43-45% only.
If you want to try and duplicate my results here is how i run my cgminer 3.7.2:
If you don't have the same card i suggest you play with the thread concurrency, gpu engine and gpu memclock to get the best results.
Hope this helps
With that being said let me tell you i'm getting aroun 700-730kh/s.
My temp is around 69C and my fan is running at around 43-45% only.
If you want to try and duplicate my results here is how i run my cgminer 3.7.2:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o < MY POOL URL HERE > -u -p -I 13 -g 2 -w 256 --thread-concurrency 8193 --shaders 2048 --gpu-powertune 20 --temp-cutoff 90 --temp-overheat 85 --temp-target 71 --gpu-fan 43-100 --auto-fan --gpu-engine 1052 --gpu-memclock 1498
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o < MY POOL URL HERE > -u
If you don't have the same card i suggest you play with the thread concurrency, gpu engine and gpu memclock to get the best results.
Hope this helps
I would use -I 13 -g 2 -w 256 --gpu-engine 1050 --gpu-memclock 1500 --thread-concurrency 8192
With 3.7.2 and 13.12 drivers I see ~700 per card with this.
With 3.7.2 and 13.12 drivers I see ~700 per card with this.
I have 2 r9 280x connected, without crossfire on the same motherboard
I use -I 13 -g 2 -w 256 --shaders 2048 and I get a maximum speed of 1100 kh/s.
Do you know what line or what should I do to get around 1400 kh/s?
My fan is at 100 power, tem is steady around 60-65 degrees and i''m using cgminer 3.5.0
I use -I 13 -g 2 -w 256 --shaders 2048 and I get a maximum speed of 1100 kh/s.
Do you know what line or what should I do to get around 1400 kh/s?
My fan is at 100 power, tem is steady around 60-65 degrees and i''m using cgminer 3.5.0
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