Beta BIOS release 1.4 beta 0 for IS7-M Release information: [ENGLISH] New Fixes/Features 1. Fixed the error message "CPU is unworkable" for P4 Prescott 2.4G (533MHz/ 1M L2/90nm) CPU. Please follow below steps to update BIOS. - Press key to continue booting when error message "CPU is unworkable" shown on screen. - Boot up the system from bootable floppy disk and then update BIOS. 2. BIOS Compile Date: 3/12/2004.