Winphlash makes log phlash.log in this log is visible difference on computers in which the bios does not run correcly: ...... [06/13/10 15:09:09] Analysis stage Loading and initializing driver... Installing and loading Windows NT driver: C:\WINNT\Temp\Biosupd\32bit\PHLASHNT.SYS Initializing driver... m_pbThisBase : 82a4e8h m_dwSize : a524h m_dwSizeFlashInt : a493h m_dwSizeRomImage : 800000h m_dw4GBStart : ffe0e000h m_dw4GBSize : 1f2000h m_bPartCount : 1h m_pPartTable : 82b59ch m_pDeviceTable : 82a579h m_pPartDescr : 82a509h m_pTextDescr : 82a531h m_pPlatform : 82a589h m_pBlockTbl : 82a5f1h m_pFixupTbl : 82a811h m_pKeyboardTbl : 0h m_pIBM : 82a5c6h m_pNIC : 0h m_dwPassword : 0h m_pSLPTable : 82ac79h ......... The bold marked hex is different oposite to log which successfuly flash bios [06/14/10 11:17:15] Analysis stage Loading and initializing driver... Installing and loading Windows NT driver: C:\WINNT\Temp\Biosupd\32bit\PHLASHNT.SYS Initializing driver... m_pbThisBase : afa4e8h m_dwSize : a524h m_dwSizeFlashInt : a493h m_dwSizeRomImage : 800000h m_dw4GBStart : ffe0e000h m_dw4GBSize : 1f2000h m_bPartCount : 1h m_pPartTable : afb59ch m_pDeviceTable : afa579h m_pPartDescr : afa509h m_pTextDescr : afa531h m_pPlatform : afa589h m_pBlockTbl : afa5f1h m_pFixupTbl : afa811h m_pKeyboardTbl : 0h m_pIBM : afa5c6h m_pNIC : 0h m_dwPassword : 0h m_pSLPTable : afac79h Read system BIOS to analysis gEscdSaveMode = 1 gSetupVarVolSaveMode=0 gUefiVarVolSaveMode=0. checkFfsValid ...