Hi, am looking to update my Processor and need a BIOS update (Won't boot w/new processor). There are no new updates at Sony's Support website, called and "Sony doesn't recommend a processor upgrade for my model"? Tried eSupport.com link from AMI's site and they advise mine is most current Bios. I'm not sure if it's the Execute Disable Bit°, Intel® 64 & Enhanced Intel SpeedStep® Technologies that are not supported (locked out by Sony) or Bios isn't recognizing CPU? Any help would be appreciated. Installed Processor is a P4 560 3.60Ghz HT, Architecture 90 nanometer technology L2 Cache 1M L3 Cache N/A Clock Speed 3.60 GHz Front Side Bus Speed 800 MHz Other Intel Technologies HT† Enabled Package FC-LGA Chipset Intel® 925X Chipset , Intel® 915P Express Chipset, Intel® 915PL Express Chipset, Intel® 915G Express Chipset, Intel® 915GL Express Chipset, Intel® 915GV Express Chipset, Intel® E7230 Chipset Memory Type Dual Channel DDR 400/333, Dual Channel DDR2 400/533 Boards Compatible Boards (AttrID=132) Slot/Socket Type LGA775 Pin Count 775-land sSpec Number SL7J9 The New Processor is a P4 650 3.40Ghz Ht. Architecture 90 nanometer technology L2 Cache 2M L3 Cache N/A Clock Speed 3.40 GHz Front Side Bus Speed 800 MHz Other Intel Technologies HT† Enabled, Execute Disable Bit°, Intel® 64, Enhanced Intel SpeedStep® Technology Package FC-LGA Chipset Intel® 925X Chipset , Intel® 915P Express Chipset, Intel® 915PL Express Chipset, Intel® 915G Express Chipset, Intel® 915GL Express Chipset, Intel® 915GV Express Chipset, Intel® E7230 Chipset Memory Type Dual Channel DDR2 400/533, Dual Channel DDR2, DDR Boards Compatible Boards (AttrID=161) Slot/Socket Type LGA775 Pin Count 775-land sSpec Number SL7Z7 -Sony VAIO VGC-RA920G -Manufacturer and Model: Sony VAIO VGC-RA920G(UC) -Motherboard: ASUSTeK Computer INC. PTGD2-VX, Rev 1.04 -Video: PCI Express x16 -BIOS Type: AMI -BIOS ID: 63-0400-000040-00101111-111604-I915 -BIOS OEM: BIOS Date: 11/16/04 1507 Ver: 08.00.10 - 2004 -Chipset: Intel 82915G/GV - 82801FB ICH6/82801FR Raid -Maximum Memory: 4GB - Sony limits to 2GB -Installed Memory: 2GB -Memory Config: Slot1:512 Slot2:512 Slot3:512 Slot4:512 -Bus Type: PCI; ISA -SMBIOS BIOS Version: 2004 -SMBIOS Major Version: 2.3 -Release Date: 11/15/2004 7:00:00 PM -BIOS Manufacturer: American Megatrends Inc. -OS: Microsoft Windows XP Media Center 2005 -Bios Link: