My laptop failed to boot about a weeks ago after a failed Windows update, no display, power and num-lock lights only, nothing when I hit ESC-key or F9. I had tried everything including disassembling the unit to expose the motherboard underneath the keyboard, disconnecting the CMOS battery and shorting across the two pins, but nothing happened.
The I saw a picture on a French website after googling several terms. After translating the page, it mentioned resetting the CMOS in it's broken English. The picture showed two sets of solder points, like two dabs of solder very close but not quite touching. The sets are labeled JRST2001 and JRST2002 and are located very close to the user accessible memory slots on the bottom of the mother board (under the memory cards if you have those slots filled). I shorted/jumpered across each set of points separately, meaning made a connection across the two solder points at JRST2001 with a metallic object the did the same thing with the two at JRST2002 (not from JRST2001 to JRST2002).
I turned the unit over and started it and after a short delay...It started up!!! I went into the BIOS and the CMOS had completely reset! It show the date as something in 2009. I reset to defaults and my computer booted beautifully. Buy-the-way, you should have the laptop battery and power adapter disconnected.
**Note of Caution** one of these maybe the CMOS and one maybe the EPROM. It is totally possible that this also erased the BIOS and restored it from the G75.BIN file from my hard drive when I turned it on afterward.
I struggled with the idea of posting this as it could make it easier for computer thieves, but that would be after that that the unit was already stolen and we have so many people here with "bricked" unit that this could help!
But use this only as a last resort, I had already gotten a quote of $315 to replace my motherboard and set up an RMA with ASUS tech support who could not guide me in this direction.
Good Luck!