xfx 7950 LTC mining with many stales, need help please.

[biged214]

Hello all,
First off thanks for having this forum and for all the wonderful support.

I have a XFX7950 that I'm running and I keep coming across people who keep saying that can easily get passed 500Kh/s with these cards while mining LTC. I can't seem to do this without having the pool and also cgminer tell me that I have lots of stales. If I keep my current settings, which are:

cgminer --scrypt --shaders 1000 --intensity 12 --worksize 256 -g 1
Temp: 80.0 C
Fan Speed: 76% (3370 RPM)
Engine Clock: 1150 MHz
Memory Clock: 1450 Mhz
Vddc: 1.250 V
Activity: 97%
Powertune: -10%
Fan autotune is disabled (0-85)
GPU engine clock autotune is disabled (900-900)

I get this below

(5s):298.5K (avg):305.8Kh/s | Q:13  A:48  R:0  HW:0  E:315%  U:7.7/m
 ST: 2  SS: 0  DW: 24  NB: 7  LW: 46  GF: 0  RF: 0  WU: 223.5
 GPU 0:  80.0C 3389RPM | 298.5K/305.8Kh/s | A:48 R:0 HW:0 U: 7.89/m I:12

It seems like anything I adjust I either use more power or my stales go up and my Kh/s on my pool goes down from what my miner says I'm doing, I understand that the pools calculate Kh/s by accepted shares so that is really my concern. Is there anything I can change to increase my Kh/s output while having my stales stay down?

Thanks in advance for any help 

[1715610682]

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[pekv2]

Try giving this a read for 7xxx series cards.

Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs

[GiLa]

try cooling it down
i had my xfx ghost dd 7970 at 650mhs but the temp was like 90+ degress getting alot rejects
after almost a week of tweaking, now doing 655mhs but at 70 degress at the expense of 4 6cm fans blowing directly on the card and getting 1 rejects every 1000
mind you this is bitcoin

[pekv2]

try cooling it down
i had my xfx ghost dd 7970 at 650mhs but the temp was like 90+ degress getting alot rejects
after almost a week of tweaking, now doing 655mhs but at 70 degress at the expense of 4 6cm fans blowing directly on the card and getting 1 rejects every 1000
mind you this is bitcoin

khash/s. He/she is litecoin mining.

[biged214]

Try giving this a read for 7xxx series cards.

Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs

Thanks for this link, this worked perfectly and now I'm mining where I should be!!

[elchorizo]

Another thing to try is reaper as opposed to cgminer. Reaper seems to work better for me and with less rejects/work resets.

[final war]

Hello all,
First off thanks for having this forum and for all the wonderful support.

I have a XFX7950 that I'm running and I keep coming across people who keep saying that can easily get passed 500Kh/s with these cards while mining LTC. I can't seem to do this without having the pool and also cgminer tell me that I have lots of stales. If I keep my current settings, which are:

cgminer --scrypt --shaders 1000 --intensity 12 --worksize 256 -g 1
Temp: 80.0 C
Fan Speed: 76% (3370 RPM)
Engine Clock: 1150 MHz
Memory Clock: 1450 Mhz
Vddc: 1.250 V
Activity: 97%
Powertune: -10%
Fan autotune is disabled (0-85)
GPU engine clock autotune is disabled (900-900)

I get this below

(5s):298.5K (avg):305.8Kh/s | Q:13  A:48  R:0  HW:0  E:315%  U:7.7/m
 ST: 2  SS: 0  DW: 24  NB: 7  LW: 46  GF: 0  RF: 0  WU: 223.5
 GPU 0:  80.0C 3389RPM | 298.5K/305.8Kh/s | A:48 R:0 HW:0 U: 7.89/m I:12

It seems like anything I adjust I either use more power or my stales go up and my Kh/s on my pool goes down from what my miner says I'm doing, I understand that the pools calculate Kh/s by accepted shares so that is really my concern. Is there anything I can change to increase my Kh/s output while having my stales stay down?

Thanks in advance for any help 

get guiminer-scrypt alpha, there is a already set up config i get 520-40 kh/s for ltc