I've had my 780Ti Superclocked editions since they first came out.  I've always kept a 100mhz core and 150mhz memory overclock on them.  If I go to 200mhz on the memory I can get some artifacting in a stress test benchmark program or it might even outright  crash back to desktop.  I'm curious if I should try overvolting them to be able to go higher?  I have never tried over volting a graphics card so I just wonder how dangerous it is or if it is even worth it to get another 50mhz or could it actually allow for alike another 150mhz or something. 

So your saying a custom bios can have more benefit then overvolting?

Sounds interesting, I am assuming there are not links on evga.com for 780ti superclock custom bios that allows for 106+ power targets?

Thanks for that.  I guess I am more interested in increasing the default 106% power limit then I am increasing voltage.  Will this program allow me to increase the default power limit without unlocking the voltage or touching the voltage?

I read through it.  The part I don't understand and I think they assume some level of knowledge of the program is how to make it work with Nvflash.  The Bios tweaker just opens up blank and I think your supposed to use Nflash with it so that it reads the bios file.  But I haven't been able to figure that part out. 

First card is running:      80.80.34.00.80 (P2083-0030)
Second card is running: 80.80.30.00.80 (P2083-0030)
 
So I guess the first card has a slightly newer bios?

Not the ACX but the regular superclocks with reference cooler.  Both are listed as GDDR5 Hynix if that is the type your referring to
 
 

Use the Ezflash on the site to flash it?
 
These don't void the warranty do they?

Do you think increasing the power target will allow for more overclocking headroom?  oh and it doesn't void the warranty correct?

Relatively safe?  No warranty issues?

This is basically the commands to use?
 
 *PS: In order for this tool to work you must place it in the same
* nvflash directory and rename the vBios to "x.rom"

# 1. nvflash --protectoff      " This disable EEprom "
# 2. nvflash --save            " This will save the stock bios or vBios before flash "
# 3. nvflash -4 -5 -6          " Normal Flash "
# 4. nvflash -override -6      " Override GPU ID mismatch "

* Use this options to flash each individual GPU in different order
* and if you have *PLX chip* or if any those command above fail to flash.

# 5.  nvflash -i0 -4 -5 -6      " Flash GPU #1 "
# 6.  nvflash -i1 -4 -5 -6      " Flash GPU #2 "
# 7.  nvflash -i2 -4 -5 -6      " Flash GPU #3 "
# 8.  nvflash -i3 -4 -5 -6      " Flash GPU #4 "
# 9.  nvflash -i4 -4 -5 -6      " Flash GPU #5 "
# 10. nvflash -i5 -4 -5 -6      " Flash GPU #6 "

1,2,3,4,5 First, Reboot PC to make sure your first flashed card is OK, then 1,2,3,4,6 for 2nd card.

the vBIOS must be renamed to x.rom. 

Try process=2,5

You can backup your vBIOS using GPU-Z.