pakai la calculator online...just key in your hash rate, and power consumption rate + tariff

http://dustcoin.com/mining

u using what cards? n how many?

oh yeah babeh.

So where do you guys get the materials for you rigs.

I went to a few shops and they don't sell 1 square inch aluminium pieces

Yeh, the way I look at it.
I think I'll use one of my spare drawers as a milk crate

Yeah, will probably have to unscrew the top and bottom cover. Using the side supports to hold the GPU in place.

3x MSI R9 280X (will get one last 280X and wait for NVIDIA and AMD's new cards, power efficiency FTW)
Stable at 755KH/sec each with OC to 1075MHz
UV to 1.080V

liddis also can.. 

My average temperature is around 68C to 73C for all cards depending on the time of day.

becareful your Dcu2 asus when working around the motherboard, the fan blade is jutting out abit.. hit my palm then broken.. 


luckily still can run cool cos the cooler design is very good.

u need to dump all your code here n see.. sometimes just one comma missing also program will not start,

Have you got it working yet?
Try with one card first. Is the " actually in the config? Try remove it if so, not sure if that affects, cos small things can screw it up

My config below

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://stratum.dogehouse.org:3337 -u user -p x -o stratum+tcp://stratum.dogehouse.org:3338 -u user -p x -I 13 -w 256 -g 2 --thread-concurrency 8192 --auto-gpu --gpu-engine 1000-1050 --gpu-memclock 1500 --temp-target 82 --temp-cutoff 90 --temp-overheat 85 --auto-fan

did you install driver and sdk?
here's a guide for litecoin https://litecointalk.org/index.php/topic,7722.0.html

looking at the pool JSON auth fail, seems like you either didnt register or set your workers at the pool?

actually it looks fine
lookup gap don't really need
just adjust the engine and memclock, highest is not always best
i put at 1050 or 1075, 1500

for your original setting, change -g 1 to -g 2
-g 1 is for HD7950

well your other setting look ok
memory to engine clock ratio is important

there is a readme file in cgminer:
First of all, do not underclock your memory initially. Scrypt mining requires memory speed and on most, but not all, GPUs, lowering memory speed lowers mining performance.

Second, absolute engine clock speeds do NOT correlate with hashrate. The ratio of engine clock speed to memory matters, so if you set your memory to the default value, and then start overclocking as you are running it, you should find a sweet spot where the hashrate peaks and then it might actually drop if you increase the engine clock speed further.

Need some advice..
The temperature seems high, fan is running on full speed and its just stock. 

*Edit*
Im running on 2 Gigabyte R9 280x OC

not really unless you set it to adjust autofan like i do, cos my card temp too high

try this, swap with your litecoin pool, just change user and pass
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://hk2.wemineltc.com:80 -u user -p x -w 256 -g 2 --thread-concurrency 8192 --auto-gpu --gpu-engine 1050 --gpu-memclock 1500 --temp-target 75 --temp-cutoff 85 --temp-overheat 80 --auto-fan

if temp too high adjust accordingly, usually when multiple gpu will be hotter
u can add range for auto-gpu like 1000-1050

edit: not autofan but auto-gpu
there is also a thread for 280x setting discussion here
https://litecointalk.org/index.php?topic=7534.0

i know of one in this thread...