============================================================================= AST RESEARCH, INC. TECHNICAL BULLETIN #0723 12-02-91 ============================================================================= AST PREMIUM/386 TOWER EISA DETECTING RAM MEMORY AT 512K PROBLEM: When the system is configured with 512K of base memory the system BIOS may incorrectly identify LAN cards RAM memory as system memory. This problem will occur when the LAN card RAM has a starting address of 512K. When the system is re-booted via CNTL-ALT-DEL the following error message is displayed: [20.30] Memory size error - Run EISA config utility. AFFECTED SYSTEMS: Premium/386 Tower EISA system board with the following part number: 202377-002 Revision "D" and below. CAUSE: System BIOS incorrectly testing memory in the 512K - 640K range. SOLUTION: This problem has been resolved with a new release of the system BIOS. Customers experiencing this problem should have the system BIOS upgraded to version 1.14, see Field Change Notice #0046B.