gpuz ver:0.5.5 RBE ver:1.28 system: win7 amd64 u bios: px uefi GPU-Z can't save my video card bios gpuz says saved ,but the Bin file only 61.5KB,not 64kb or 128kb RBE tell me this: The problem is that the 4870's (and maybe later) BIOS is 128 kB instead of 64 kB in file size. ATIFlash, WinFlash and GPU-Z 0.2.4 and earlier however read out the first 64 kB only. So, the file you get this way will be corrupted. Flashing such a file (modified using RBE or not) to the card will prevent the system from booting. RBE detected now that you specified a BIOS which has a 64 kB filesize only but utilizes GDDR5 memory. So, please double check if this file has been read out correctly! To be sure, use GPU-Z v0.2.5 or later for BIOS extracting. However, flashing (correct 128 kB sized) BIOSes using ATIFlash or WinFlash should be no problem. so,how to save the complete bios?