2.80 1. "IDE Driving Strength" option was added in the BIOS setup. 2. CPU Microcode updated. 3. Fine tuned Defer Function. 2.60 1. CPU Microcode updated. 2. With Prescott Celeron 2.8GHz CPU, Windows XP should be installed correctly. 2.50 1. Added BIOS Setup option "Defer Function" with "Auto"(Default), "Disabled", and "Enabled" options for Prescott 2.4 GHz FSB 533 MHz CPU. 2.40 1. CPU Microcode Updated. 2. With Prescott 2.4 GHz FSB 533 MHz CPU installed, Windows XP should restart correctly. 2.30 1. Fine tuned 2 DIMM of single side memory installed. 2.20 1. Removed one memory test in check point d4h and added io delay in init local APIC code. 2.10 1. CPU Microcode updated. 1.90 1. When system resume from hibernation, "The system failed to boot several times" warning message should not be shown. 2. System can boot to USB-FDD if "Try Other Boot Devices" is set to "Yes". 3. Added "Flexibility" setup with "Disabled"(Default) and "Enabled" options. Also press "Home" key right after power on will force "Flexibility" setup to "Enabled". 1.70 1. System should resume from hibernate correctly if USB Legacy Support is enabled in BIOS setup. 1.60 1. The speed of DDR SDRAM should be shown correctly in the BIOS setup.