File name: 020722S.ROM check sum: B09Ah 1.Added delay time for HDD detection
File name: 020610S.ROM check sum: 6B5Ah 1.Adjust timing for stability and compatibility 2.Fixed system boot slowly when system has PCI IDE RAID card.
File name: 020426S.ROM check sum: 6CF6h 1.Updated Microcode(F13h) for P4P 478 Pin E-0 stepping 2.Support P4 Celeron CPU 1.7 and 1.8 GHz 3.Fixed THUMB(Apacer HandyDeive) can't boot 4.Adding TV-OUT function 5.Fixed PS/2 mouse could't work properly in WinXP
File name: 020402S.ROM check sum: C17Fh 1.Support SiS645 chipset's FSB 133MHz
File name: 020311S.ROM check sum: 0F7Dh 1. Supporting SiS 961B chipset with ATA 133 HDD 2. Adjusting default setting; MA 1T/2T select sets to 2T for DRAM stability.
File name: 020218S.ROM check sum: 714Bh 1.Fixed sound card sometimes has yellow mark in Windows OS series.
File name: 020204S.ROM check sum: 4B3Dh 1.Support USB Thumb Drive and add Thumb Drive legacy support in CMOS Setup Menu 2.Support 48-bit LBA HDD
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Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.