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Voltage mod for the Nvidia GT 555m of the M14x This is an Alienware M14x BIOS containing a modified VBIOS which has a slightly increased GPU core voltage at 3d clocks. The increased voltage will allow you to overclock the GPU core a bit more. So far people got it up to 850MHz, but each chip is different. The system will draw a bit more power and run warmer than before. If you want to see some results, -voltage-increase-nvidia-gt-555m-8.html#post12013"]P1900 and -voltage-increase-nvidia-gt-555m-8.html#post12027"]even more is possible in 3dMark11, thanks to this mod. Since the VBIOS of this system is part of the BIOS, modifying it isn't as easy as playing with a vbios of a dedicated GPU. I had find and extract the VBIOS file from the BIOS. Since I don't have a lot of practice with modifying Nvidia bios files I needed some help there, so thanks to Saltius from MVKtech for identifying the voltage strings and modifying the VBIOS. Also thanks @n3ocort3x for starting this project and @Ninjahunter for testing it, and thanks to everyone else involved! INSTRUCTIONS: Attached is the repacked BIOS which contains the modified VBIOS. Extract it and simply execute InsydeFlash.exe and it the flashing procedure will start. Remember to close all applications in the background before doing this and make sure your system doesn't accidentally shutdown during the process. After flashing, I highly recommend going to the BIOS, load the default settings, apply and reboot. This will cause the system to reinitialize the hardware and can save you from some issues in certain cases. As already mentioned, overvolting always comes with raised temperatures. Make sure your system can handle the additional amount of heat. Check the airflow, a dust-free system is important and reapplying the thermal paste can lower your temperature by several degrees.And keep in mind that this only changes the core voltage of the GPU, not the memory voltage. So this will only affect the maximum overclock on the core. Update: Repacked the unlocked BIOS A03 with the modified VBIOS, check the attachements. Update 2: Repacked BIOS A05 with the modded VBIOS. Update 3: Repacked the unlocked BIOS A05 with the modded VBIOS. Update 4: Repacked BIOS A07 & A08 with the modded VBIOS, attached below. Update 5: Unlocked A07 & A08 with modded VBIOS added. Update 6: New version of A08 uploaded, volt mod now works for GF116 as well. Users with the newer 555m revision (GF116 - check GPU-Z) seem to have issues with the original mod. So please use the updated A08 version attached at the end of the post ("GF116 fix"). It will also work for GF106 systems. I will upload a fix for the unlocked version of A08 as well, as soon as I get around to do so. UPDATE: Two new versions of A08 added which bring back the SATA behavior of A05, so GF116 users can enjoy more SATA speed as well. Or for all GF106 users which want to use the latest BIOS but keep the SATA behavior from A05. Standard and unlocked versions added. *************** If you like these BIOS releases, please consider a donation to Tech|Inferno. *************** _____________________________ #As always with such mods: You are responsible for all the changes at your system and do this at your own risk _____________________________ M14x A01 voltmod flash package.zip M14x unlocked A03 with GT555m volt mod.zip M14x A05 incl VBIOS volt mod.zip M14x unlocked A05 incl VBIOS volt mod.zip M14x [unlocked] A08 with voltmod.zip M14x A07 - voltmod.zip M14x A08 - voltmod.zip M14x A08 - voltmod - GF116 fix.zip M14xR1_A08_voltmod_incl_GF116_support_&_SATA_fix.zip M14xR1_A08_[unlocked]_voltmod_incl_GF116_&_SATA_fix.zip