Saphhire 7950 Vapor x OC settings

[blarg]

so i have 2 7950's stock getting around 900 k hash on scrypt and i havent messed with the over clock setting on at all and was wondering what experiences youve had (if you have the same card) what works best for you

also what should i mess around with in the bios to minimize power of components a mining rig wont use

thanks!

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[zackclark70]

i use 1050mhz core 1250mhz ram and 1.050-1.065v  ( use trixx to change setings) i get 630-640kh / 7950  ( i have 83 of the cards you have )

[blarg]

which version of trixx?

what you pointing your hashing power at? im mining digicoin

[zackclark70]

i have 83 total 7950s i am solo mining ltc with 80 of them and using 3 of them to mine pxc i use tha latest vetion of trixx

[blarg]

what does the VDDC start for? mine is at 1250. where should i put it?

when i put the gpu clock up to 1050 i got my hashes up to 570

thanks!

[kevindeangelis]

i have 83 total 7950s i am solo mining ltc with 80 of them and using 3 of them to mine pxc i use tha latest vetion of trixx

oh good lord! I'd love to see a picture!

[User_513]

what does the VDDC start for? mine is at 1250. where should i put it?

when i put the gpu clock up to 1050 i got my hashes up to 570

thanks!

VDDC is the volts in DC that the card is running at. Under volting a card, if you can do it, saves electricity and reduces the heat that the cards produce. What's the rest of your config? I'm getting ~1.2Mh with my 2 7950's, and my Sapphire is much better than the XFX DD I bought before I knew better.

[zackclark70]

what does the VDDC start for? mine is at 1250. where should i put it?

when i put the gpu clock up to 1050 i got my hashes up to 570

thanks!

you should get 630kh

[blarg]

what does the VDDC start for? mine is at 1250. where should i put it?

when i put the gpu clock up to 1050 i got my hashes up to 570

thanks!

VDDC is the volts in DC that the card is running at. Under volting a card, if you can do it, saves electricity and reduces the heat that the cards produce. What's the rest of your config? I'm getting ~1.2Mh with my 2 7950's, and my Sapphire is much better than the XFX DD I bought before I knew better.

what is you VDDC at 1250 too?

im getting 1.1 mh with 2 sapphire 7950 vapor x's

i got 2 more 7950 sapphires but im waiting for my risers to come

[blarg]

thanks!
[/quote]

you should get 630kh
[/quote]


  whats not right

gpu clock 1050 mem clock 1250 VDDC 1250 running crossfire CGMiner intensity 20

am i forgetting something? i restarted my computer too

[blarg]

zach can you post your .bat text or cmd prompt you use in CGminer?

[zackclark70]

zach can you post your .bat text or cmd prompt you use in CGminer?

i use reaper lol

[blarg]

zach can you post your .bat text or cmd prompt you use in CGminer?

i use reaper lol

well i use tacotime's guiminer it has both

[zackclark70]

zach can you post your .bat text or cmd prompt you use in CGminer?

i use reaper lol

well i use tacotime's guiminer it has both

protocol litecoin

worksize 256

aggression 20
threads_per_gpu 1
sharethreads 18
lookup_gap 2
gpu_thread_concurrency 20992


7950 vaporx 1050 core 1250 ram 1.050v corev   55% fan   at room temp of 27c  60c core 80c vrm   633-640kh

[blarg]

alright thanks!

[zackclark70]

let me know if you need any more help

[ohiwastedmylif]

I only get about 560-575 with your 600+ settings.

If you have the cooling ability this will get you about 660-670 Kh/s


setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
color 40
cgminer.exe -o x -u x -p x --scrypt --auto-fan --temp-target 69 --intensity 20 --thread-concurrency 24000 -w 256 --gpu-engine 1125 --gpu-memclock 1600 --gpu-powertune 15 -g 1

[zackclark70]

I only get about 560-575 with your 600+ settings.

If you have the cooling ability this will get you about 660-670 Kh/s


setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
color 40
cgminer.exe -o x -u x -p x --scrypt --auto-fan --temp-target 69 --intensity 20 --thread-concurrency 24000 -w 256 --gpu-engine 1125 --gpu-memclock 1600 --gpu-powertune 15 -g 1

that would be because you are not using reaper lol reaper uses system ram so you can run lower mem clocks

cooling is not a problem power usage is ( i am puling 20kw 24/7 )

[ohiwastedmylif]

Reaper instantly crashes for some reason.

I used to use to all the time and then one day it just stopped working.

I removed everything re-installed, tried betas etc but it has never worked since!

[zackclark70]

Reaper instantly crashes for some reason.

I used to use to all the time and then one day it just stopped working.

I removed everything re-installed, tried betas etc but it has never worked since!

if your on windows make a new admin acount and it will work on there