I need help with radeon hd 7950

[parham_dante]

Hi everyone
my HD 7950 hast rate is about 375 kh/s using cgminer but I thought It maight be around 650 kh/s
I want to know how to improve it to 650 kh/s or higher
and is there another miner better than cgminer
thanks a lot

[beegatewood]

Hi everyone
my HD 7950 hast rate is about 375 kh/s using cgminer but I thought It maight be around 650 kh/s
I want to know how to improve it to 650 kh/s or higher
and is there another miner better than cgminer
thanks a lot

You need to have a better settings, even at stock clock you should get 550 hash...

[Wipeout2097]

Hi there!

Please post the configuration file

[expalpo]

Hi everyone
my HD 7950 hast rate is about 375 kh/s using cgminer but I thought It maight be around 650 kh/s
I want to know how to improve it to 650 kh/s or higher
and is there another miner better than cgminer
thanks a lot

You need to have a better settings, even at stock clock you should get 550 hash...

Agreed, you will most likely have to 'tweak' your settings. Check out the cgminer SCRYPT-README for a good explanation of the 'Tuning process' for a 7970... Should be a good place to start.

[parham_dante]

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

[TheDragonSlayer]

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

Change your -g 8 to -g 1 and try intensity 20

[parham_dante]

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

Change your -g 8 to -g 1 and try intensity 20

thanks buddy

[parham_dante]

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

Change your -g 8 to -g 1 and try intensity 20

thanks buddy

I faced another problem CGminer detect no new block at all when mining from https://www.liteguardian.com/‎

[udet4food]

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

Change your -g 8 to -g 1 and try intensity 20

Try slowly increase intensity from 14, and check when HW errors start increasing a lot

[jonatello]

Hey it's normally easier (at least in my opinion) to point your .bat file to a conf file which contains all of the settings for your cards. This is how I have mine setup, the .bat file contains the following:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1

cgminer -c litecoin.conf
_________
Where litecoin.conf is a new text file I have saved (This is mining for litecoin instead of bitcoin, but you set this up the same regardless. Inside of this conf notepad file you can then include all of your settings, such as the following (which I am using a 7970, you'll probably want to lower your core/mem speeds to 1100/1300):

{
"expiry" : "120",
"log" : "5",
"pools" : [
   {
      "url" : "%http://stratum.pool.com:3334%",
      "user" : "%account:worker%",
      "pass" : "%password%"
   }
]
,
"scrypt" : true,
"kernel" : "scrypt",
"no-restart" : true,
"no-submit-stale" : true,
"remove-disabled" : true,
 
"queue" : "1",
"scan-time" : "60",
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" :   "8192",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "100",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "20",
"gpu-vddc" : "1.1",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-port" : "4028",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
________
I hope this helps, good luck!

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

[mrhelpful]

Just invest in a miner? Isnt that better?

[jonatello]

Just invest in a miner? Isnt that better?

Not necessarily a bad option but if you're not interested in setting it up and tweaking it yourself I'd recommend just investing in the coins directly instead.

[ajax3592]

Hi everyone
my HD 7950 hast rate is about 375 kh/s using cgminer but I thought It maight be around 650 kh/s
I want to know how to improve it to 650 kh/s or higher
and is there another miner better than cgminer
thanks a lot

Its hard, but the truth is you'll only be able to mine 0.01944971 BTC even if you improve it to 650 kh/s
http://www.alloscomp.com/bitcoin/calculator

[parham_dante]

Hey it's normally easier (at least in my opinion) to point your .bat file to a conf file which contains all of the settings for your cards. This is how I have mine setup, the .bat file contains the following:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1

cgminer -c litecoin.conf
_________
Where litecoin.conf is a new text file I have saved (This is mining for litecoin instead of bitcoin, but you set this up the same regardless. Inside of this conf notepad file you can then include all of your settings, such as the following (which I am using a 7970, you'll probably want to lower your core/mem speeds to 1100/1300):

{
"expiry" : "120",
"log" : "5",
"pools" : [
   {
      "url" : "%http://stratum.pool.com:3334%",
      "user" : "%account:worker%",
      "pass" : "%password%"
   }
]
,
"scrypt" : true,
"kernel" : "scrypt",
"no-restart" : true,
"no-submit-stale" : true,
"remove-disabled" : true,
 
"queue" : "1",
"scan-time" : "60",
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" :   "8192",
"shaders" : "2048",
"gpu-engine" : "1100",
"gpu-fan" : "100",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "20",
"gpu-vddc" : "1.1",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-port" : "4028",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
________
I hope this helps, good luck!

Hi there!

Please post the configuration file

hi yeah it is my config file of .bat file
cgminer --scrypt -o stratum+tcp://usa.liteguardian.com:3333 -u parhamdante.1 -p x --shaders 1792 --intensity 14 --worksize 3072 -g 8
I change if since that post this topic and my average hash rate is 530 kh/s my vga is a HD 7950 gigabye windforce
here is the specs
Chipset   Radeon HD 7950
Digital max resolution   2560 x 1600
Analog max resolution   2048 x 1536
Process Technology   28 nm
PCB Form   ATX
Core Clock   Base 900/ Boost 1000 MHz
Memory Clock   5000 MHz
Memory Size   3072 MB
Memory Bus   384 bit
Card Bus   PCI-E 3.0
Memory Type   GDDR5
DirectX   11.1
OpenGL   4.2
Multi-view   4
I/O   HDMI * 1
DVI-I * 1
Mini DisplayPort *2
Card size   H=38 mm, L=285 mm, W=126 mm
Power requirement   500 W

why hw errors start happen when the intensity is only 15 and hash rate is about 500
i mean can cpu bottleneck or using old motherboard cause this problem or it is a bug in the program ?

[fanpas]

had the same problem, just review the config again.

[parham_dante]

had the same problem, just review the config again.

hi may i ask you about your rig specs at the time you had this problem

[nerogardens]

Try this configuration:

cgminer.exe --scrypt -o http://xxx -u xxx -p xxx --lookup-gap 2 --gpu-fan 100 --temp-cutoff 77 --gpu-engine 1000 --gpu-memclock 1350 --gpu-vddc 1.105 --shaders 1792 --thread-concurrency 21712 -g 1 -v 1 --worksize 256 -I 17

I use cgminer 3.4.2

[Leehoya]

What's the specs of your rig?

[dertimo]

You shouls not mine using radeon hd 7950 but use ASIC hardware instead, generally you mine at a pool which means if the pool finds a block (which rewards coins) you get a portion of the coins depending on how much you contribute. Depending on the coin and how much you contribute you could be paid 1 or less, in the end the number of coins you get doesn't really matter, its the exchange rate you get that does.

[SLicKZA]

As others have said in the thread, stay away from mining SHA256 based coins with GPU's, even with free electricity it's not profitable at all.

Consider doing some scrypt mining (Litecoin, Feathercoin are 2 big ones).

My settings for my 7950's are as follows :

Core : 1000mhz
Memory : 1450mhz
Vcore : 1000mv
Fan speed : 80%

I get around 600k/hash per card with this setup, using 20 intensity, 2 threads and 21712 thread concurrency. I use GUIminer btw and not cgminer. Yeah, I'm lazy to change it, but so far it works.

The cards I'm using are either Powercolor or Club 3D HD7950's. If you are seeing H/W errors it could be either due to your card getting too hot, or you are pushing too hard with overclocks. Try using the standard settings and tweak from there, no 2 cards are the same.