Originally Posted by Penryn
So I flashed these rev 3 bios to my reference 780 and the voltage wont go past 1.162... suggestions?
If the load is not enough the voltage wont go past 1,16/1,18v, put the voltage slider to the max ( AB or precisionX ) and fire up crysis 3 or farcry 3 or some heavy duty stuff, valley isnt worth it as clocks down and voltages as well!
Originally Posted by maxkill
Do you also recommend max 1.212v for air? Cause I'm only reaching 1219 Mhz on core on my cards... It's ok I guess, but just wondering, pondering and evaluating
I leave you here a quote from one of my posts:
"Please do NOT GO ABOVE 1,212v WITH SOFT VOLT MOD AND LLC DISABLE!
No air cooler has the capacity to dissipate the heat load out of the VRM area when OC with overvoltage! And you cannot know the VRM´s temps, only do an estimate calculation based on your power draw! HEAT KILLS!
Exactly what happens depends on how excess the power is. It may be a sustained cooking. In this case, the MOSFET gets hot enough to literally unsolder itself. Much of the MOSFET heating at high currents is in the leads - which can quite easily unsolder themselves without the MOSFET failing! If the heat is generated in the chip, then it will get hot - but its maximum temperature is usually not silicon-restricted, but restricted by the fabrication. The silicon chip is bonded to the substrate by soft solder and it is quite easy to melt this and have it ooze between the epoxy and the metal of the body, forming solder droplets! Excess heat leads to short circuit! Usually, a MOSFET will fail short first. This is because excessive heat will, by diffusion, mix the dopants enough to create a good conductor instead of the p-n or n-p barriers that were there originally. Often, the gate oxide will be taken into the diffusion, too, causing a short between all three terminals.
Only if the short circuit current after this first mode of failure is high enough to blow the bond wires or the entire transistor, there is an open circuit.
Another forgotten thing is the voltage controller NCP4206 itself! its rated for a maximum operating temperature of 85C and again no way to measure the temperature!
Please guys PLAY SAFE!
ON AIR MAX VOLTAGE: 1.212v + 0.025 (+-) 0.006v = 1.24v(+-)
Keep the fan high and dont let temps go over 70/75C and even this is with a pinch of salt!"