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Topic: Sapphire Vapor-x Ghz 7970 Litecoin Mining 800Kh/s - page 2. (Read 16988 times)

full member
Activity: 182
Merit: 100
fml
Would you mind moving Afterburner, slightly to the left?
newbie
Activity: 56
Merit: 0
So sexy  Wink

Haha Yeah she is a fitty. Makes it easier on the eyes when i'm staring at CGminer all day Tongue
hero member
Activity: 700
Merit: 503
So sexy  Wink
newbie
Activity: 56
Merit: 0
Cheers Smiley

Catalyst 13.2 Beta 7 and SDK v2.8
hero member
Activity: 572
Merit: 500
very nice work there

what driver version are you using and sdk?
newbie
Activity: 56
Merit: 0
Yeah i can get 740Kh/s with much lower settings - As i say i'm not sure if it's worth the extra wattage, but i'm just showing it can be done relatively easily, and with decent heat. Once i get the wattage meter i'll work out whether it is in fact worth doing and update.
sr. member
Activity: 476
Merit: 250
my pcs 7970 can get about 740Khash with 1050/1250Mhz and voltage is 1.06 in afterburner,it drops ~ 1volt in GPUz
newbie
Activity: 56
Merit: 0
**EDIT - I do not think these settings are stable, after about ten hours GPU 0 reports as "DEAD" - Thus I wouldn't recommend using them. I will try and sort the problem when i get a chance and update.**

So i managed to get my 7970 up to 800Kh/s, stable so far, and thought i would share.

I'm not sure if the extra Kh/s is worth the extra wattage - i am going to order an electricity meter so i can find out what it draws and i'll update once i have.

If you have a Vapor-x 7970, and haven't yet flashed the BIOS - Check my other thread out first:

https://bitcointalksearch.org/topic/m.2095364

GPU Voltage        1187mV
GPU Clock           1135Mhz
Memory Voltage   1600mV
Memory Clock      1840Mhz

Fans Auto

cgminer --scrypt -o yourpool -u username -p password -s 2 --expiry 1 --queue 0 --thread-concurrency 20992 -I 13 -w 256 -g 2

Screenshot:

http://s14.postimg.org/ll0pvjech/Untitled.png

The reason my other 7970 is running at 720Kh/s is due to the fact its airflow is restricted by the first card and therefore gets too hot for my personal taste. I have a PCI-e riser in the post to fix this.
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