Originally Posted by Zawarudo
Koniakki, man that proper sucks that your card fried. The thing is when you start going into these super high voltages you really need to actively cool the parts of the card that supply voltage. Air coolers just don't do this, that's why your card blew. If you don't get a new card through RMA I would be happy to try and fix it myself for free if you're ok with that? probably only needs a new VRM or two soldering on.
Will it sound weird if as stranger to you(me) says that your post really moved me? What you said is one of the most thoughful/moving thing I ever read or have been said to me or anyone on an online forum.
Forums need more people like you, Skyn3t and many others here. I'm indebted to you my friend. You guys really moved me.. I'm out of words.
My card is coming straight to you along with few beers man if the RMA goes south. Nothing and noone is left unappreciated by me.
Also I hope I made it clear that I DID NOT
use your tool when it happened. I will say it again that I only use the AB Hack and the /wi command.P.S:
Also read this everyone and be careful
. This is serious stuff and it happened for real. You might think it will not happen to you and just say "look that stupid guy he killed his card". I hope it doesn't happen to you.
But I thought too it would never happen to me also. And you know what happened. I killed a 500euro GPU. If someone has enough money to not care then good for them. I don't. And I believe most of us here can't afford to loose $600-700 out of stupidity/ignorance.
Overclock safe and within safe margins.
Originally Posted by OccamRazor
Hi Little Brother!
Im going to take my Brother´s post to write something for those that have their card on air with OC:
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!
should be in the FIRST PAGE
of every overclocking thread that includes voltage. If I had known this before I would never, ever tried anything above 1.225-1.231V. And will never do again. Lesson learned.
Also I took one for the team. I hope it prevents others from having their card fry/die.
Originally Posted by Jamaican Reaper
Really sorry about your card mate,fingers crossed the RMA works out well for you....
Thanks man. Hope so too about the RMA. If not Zawarudo
IS ON THE RESCUE!!
Originally Posted by Zapee995
Yeah mate, i read your story and its really bad. Hope your rma will go well and get a shiny new card back! I destroyed my 3770k 2 weeks ago after deliding it...so i can tell you, if you are an overclocker, nothing matters...you pay the price for some more mhz just like a lot of us did!
Btw, i tested mine yesterday at firstname.lastname@example.org..Pretty lucky that the system frozed and i had to hard restart it...not even a benchmark run for 3''..
That's exactly what happened when it died. Maybe 2 seconds in the bench and it shutdown immediately.
But when previously any OC was unstable the card just crash/restore and it was back on stock settings. And I just had to re-apply the AB profile. No system crash/freeze of anything.
But when things start to freeze/reboot when it comes to gpu OC its bad. My advise man I believe you already know it. I can't say anything else after what happened. As OccamRazor
said nothing above 1.24V on air. I would settle for 1.231V for benchmarks and 1.225V for games if someone wants to play at those voltages.
Otherwise for 24/7 nothing more than 1.21V. Edited by Koniakki - 10/22/13 at 6:58am