H132270 - RAID SERVER DOES NOT BOOT TO CORRECT OPERATING SYSTEM SYMPTOM: After flashing to BIOS 16T3B/16T3C or later, from BIOS 09N/09F, the following symptoms may be observed: - Error 1300, No Operating System found; -OR- - The system boots to the wrong operating system. PROBLEM ISOLATION AIDS: The system is an IBM PC Server 320/520 (PCI/EISA) with multiple IBM PCI RAID Adapters: FRU p/n06H5078 (Option p/n07H0508) and/or FRU p/n06H9334 (Option p/n 70G8489). The BIOS is has been upgraded from 09N/09F to 16T3B/16T3C. FIX: This is not a hardware failure. After the BIOS upgrade, swap the RAID adapter in the PCI slot nearest the memory sockets(J23) with the RAID adapter in the middle PCI slot (J22). Servers with BIOS 16T3B and 16T3C will now correctly boot from the RAID adapter in the PCI slot (J23) if multiple RAID adapters are installed. Servers with BIOS 09F and 09N incorrectly booted from the RAID adapter in the middle PCI slot (J22) if multiple RAID adapters were installed. System Server 320 Server 520 Board Slot PCI PCI Location Slot # Slot # ------------------------------------- J21 0 1 J22 1 2 J23 2 3 October 28, 1996