Op de site van Asus is een nieuw BIOS te vinden voor het P4B moederbord. Zoals in de release-notes is te zien, zijn er veel fixes en is een flash waarschijnlijk zeker de moeite waard:
P4B BIOS Ver. 1004 09/24/2001
- Support AGP 4X override.
- Fix keyboard controller sometimes fails when resume system from S1 by PS/2 mouse.
- Fix AGP function sometimes disabled when DRAM frequency is equal to host frequency.
- Fix AC97 audio controller subsystem ID is incorrect after system resume from S3.
- Fix Windows 2000 and Windows XP lock up when booting if all PnP devices in super I/O are disabled.
- Fix more than one key can power up the system when PS/2 keyboard wake up function is set to "Power Key".
- Fix RTC can not power up the system after Windows is shut down.
- Fix system can not be wake up from S4 after system resume from S3.
- Fix Windows 98SE Chinese Edition can not be installed from bootable CD-ROM when HDD is partitioned into 2 or more drives.