NEC MC2400 - Manual (Page 139)

Problem Solving 5-19
BIOS Messages (Continued)
Message Description
System timer error* The timer test failed. Requires repair of the system
board.
UMB upper limit segment address: nnnn Displays the address nnnn of the upper limit of the
Upper Memory Blocks, indicating released segments of
the BIOS, which may be reclaimed by a virtual memory
manager.
Video BIOS shadowed The video BIOS is successfully copied to shadow RAM.
*If your system displays this message, write down the message and notify your customer representative.
If your system fails after you made changes in the BIOS Setup menus, you may be able to correct the
problem by entering Setup and restoring the original values.