i know is low, but even with 14 i have too much hw error!!!anyone can tell me why?
Topic: problem with my hd7950 - page 4. (Read 5045 times)
how can i say that max intensity i can set is 13? i know is low, but even with 14 i have too much hw error!!!
anyone can tell me why?
i know is low, but even with 14 i have too much hw error!!!anyone can tell me why?
im using this config for my 7950 sapphire and i got average 670-675 from that if u have enough cooling i suggest to use 20 for intensity. if not you can get average above 600 with intensity 17
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -w 256 --shaders 0 --intensity 20 -v 1 -g 1 --lookup-gap 2 --thread-concurrency 21712 --gpu-engine 1100 --gpu-memclock 1500 --gpu-memdiff 0 --gpu-powertune 20 --temp-cutoff 90 -o "your pool adress" -u "user" -p "password"
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -w 256 --shaders 0 --intensity 20 -v 1 -g 1 --lookup-gap 2 --thread-concurrency 21712 --gpu-engine 1100 --gpu-memclock 1500 --gpu-memdiff 0 --gpu-powertune 20 --temp-cutoff 90 -o "your pool adress" -u "user" -p "password"
if i use I = 19 i have 600 or more kh/s, but i also have 100% hw error!!
640 kh/s with pretty basic settings, how much RAM are you running?
-w 256 -g 1 --thread-concurrency 14336 --intensity 19 --auto-fan --auto-gpu --gpu-engine 1100 --gpu-memclock 1250 --gpu-powertune 20
Catalyst 13.1
SDK 2.7
cgminer 3.3.1
-w 256 -g 1 --thread-concurrency 14336 --intensity 19 --auto-fan --auto-gpu --gpu-engine 1100 --gpu-memclock 1250 --gpu-powertune 20
Catalyst 13.1
SDK 2.7
cgminer 3.3.1
thread 21712
vectors 1
gpu threads 1
worksize 256
Intensity 19
MSI afterburner settings:
clock 1080 fan 80% memory 1250
Download sapphire trixx to disable ulps settings.
Thank me later.
vectors 1
gpu threads 1
worksize 256
Intensity 19
MSI afterburner settings:
clock 1080 fan 80% memory 1250
Download sapphire trixx to disable ulps settings.
Thank me later.
now i'm using this settings --gpu-threads 2 --thread-concurrency 8192 -I 13
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
For 7950 you must set --gpu-threads 1
if i set --gpu-threads 1 --thread-concurrency 8192 -I 13 my hashrate decrease
also, if i try to use highter value of I with --gpu-threads 1 i have the same problem with too much hw error.
tomorrow i'll try some oc of my videocard with msi afterburn and i'll let you know...
@bitcointaco: flash the card with another 7950 bios...uhm...i'm not sure i'm able to do it.
now i'm using this settings --gpu-threads 2 --thread-concurrency 8192 -I 13
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
For 7950 you must set --gpu-threads 1
setx gpu_max_alloc_percent 100
any help??
You only need to enter that command once at the command prompt. It doesn't need to be a command in a .bat file that is run every time. It will say:
Code:
Success: specified value was saved.
If it works correctly, and that's it, no need for that command again.
Also, have you tried it with the above MSI Afterburner settings?
Try to find your max stable memory clock. Then find the core clock that is equal the 60% of the max memory clock. For some reason, this ratio improved my hash rate.
For example, if your max memory is 1000, then you core clock should be 600. Hope this makes sense.
For example, if your max memory is 1000, then you core clock should be 600. Hope this makes sense.
There is some problem:
- I can't set intensity greater than 13. With 13 i haven't any hw error, with 14 or more, i have too much hw error.
- I can't set thread concurrency greater than 8192. If i use greater value i have this error--->
maximum buffer memory device 0 supports says 536870912
your script setting come to 939524096
error -61 etc
failed to init GPU thread 0 disagling device 0
one question: that overclock need an overvolt too?
- I can't set intensity greater than 13. With 13 i haven't any hw error, with 14 or more, i have too much hw error.
- I can't set thread concurrency greater than 8192. If i use greater value i have this error--->
maximum buffer memory device 0 supports says 536870912
your script setting come to 939524096
error -61 etc
failed to init GPU thread 0 disagling device 0
one question: that overclock need an overvolt too?
No, they aren't overvolted except for that powertune setting in MSI Afterburner. They are voltage locked Gigabyte cards.
They are running on the 13.4 win7/8 x64 driver. Maybe flashing the card with another 7950 bios would help if nothing else will work. (there are guides on the forum, don't have the links handy though)
Oh, and they are running cgminer 3.7.2.
Also, download MSI Afterburner: http://event.msi.com/vga/afterburner/download.htm
Change settings to:
Power Level +20
Core 1152
Memory 1406
(MSI Afterburner works even if your card is not MSI brand)
Change settings to:
Power Level +20
Core 1152
Memory 1406
(MSI Afterburner works even if your card is not MSI brand)
Your thread concurrency is way too low. Try 25984.
Here is the cgminer.conf which gets all 3 of my 7950s up to 655kh all day long:
{
"pools" : [
{
"url" : "stratum+tcp://pool.pool.url:3333",
"user" : "user",
"pass" : "password"
},
{
"url" : "stratum+tcp://pool.pool.url:3333",
"user" : "user",
"pass" : "password"
}
]
,
"intensity" : "18,18,18",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "25984,25984,25984",
"shaders" : "0,0,0",
"gpu-engine" : "0-0,0-0,0-0",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "0,0,0",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
Here is the cgminer.conf which gets all 3 of my 7950s up to 655kh all day long:
{
"pools" : [
{
"url" : "stratum+tcp://pool.pool.url:3333",
"user" : "user",
"pass" : "password"
},
{
"url" : "stratum+tcp://pool.pool.url:3333",
"user" : "user",
"pass" : "password"
}
]
,
"intensity" : "18,18,18",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "scrypt,scrypt,scrypt",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "25984,25984,25984",
"shaders" : "0,0,0",
"gpu-engine" : "0-0,0-0,0-0",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "0,0,0",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
up
Hi,
i just bought an ATI msi 7950 3gb OC edition, but i'm very disappointed about its hashrate. I red that whit that card i can reach 600 or even more kh/s, but i barely reach 400kh/s, and, most important, i still don't know why!!
My frequency:
gpu clock @880mhz
memory clock @1250mhz
temp @70°
I tried whit:
-different version of cgminer (3.6.2, 3.7.0, 3.7.2), without changes
-different version of catalyst (13.1, 13.9, 13.12), without changes.
-different setting. I tried more or less every setting suggest in https://litecoin.info/Mining_hardware_comparison.
I noticed that:
-i can't set intensity greater than 13. With 13 i haven't any hw error, with 14 or more, i have too much hw error.
-i can't set thread concurrency greater than 8192. If i use greater value i have this error--->
maximum buffer memory device 0 supports says 536870912
your script setting come to 939524096
error -61 etc
failed to init GPU thread 0 disagling device 0
now i'm using this settings --gpu-threads 2 --thread-concurrency 8192 -I 13
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
i just bought an ATI msi 7950 3gb OC edition, but i'm very disappointed about its hashrate. I red that whit that card i can reach 600 or even more kh/s, but i barely reach 400kh/s, and, most important, i still don't know why!!
My frequency:
gpu clock @880mhz
memory clock @1250mhz
temp @70°
I tried whit:
-different version of cgminer (3.6.2, 3.7.0, 3.7.2), without changes
-different version of catalyst (13.1, 13.9, 13.12), without changes.
-different setting. I tried more or less every setting suggest in https://litecoin.info/Mining_hardware_comparison.
I noticed that:
-i can't set intensity greater than 13. With 13 i haven't any hw error, with 14 or more, i have too much hw error.
-i can't set thread concurrency greater than 8192. If i use greater value i have this error--->
maximum buffer memory device 0 supports says 536870912
your script setting come to 939524096
error -61 etc
failed to init GPU thread 0 disagling device 0
now i'm using this settings --gpu-threads 2 --thread-concurrency 8192 -I 13
setx gpu_use_sync_objects 1
setx gpu_max_alloc_percent 100
any help??
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