System Installation
WEB-6681 SERIES
【
R1.0
】
User’s Manual
3-1
Chapter 3 System Installation
This chapter provides you with instructions on how to setup your system. The
additional information shows you how to handle WDT operation in software
program.
3.1 Memory
WEB-6681 Series provide onboard 64MB and 1 SO-DIMMs (144-pin Dual
In-line Memory Module) to support 3.3V SDRAM (Synchronized DRAM) as
on-board main memory. Onboard memory can be expansive up to 128MB by using
4 pieces of x16 type SDRAM. The maximum memory size of SO-DIMM is
32MB~ 512MB with using 16MB/32MB/64MB/128MB/256MB technology.
Support up to 1 double-sided SO-DIMMs at 100/133MHz or 1 single-sided
SO-DIMMs at 100/133MHz system memory bus. The memory architecture adopts
64-bit data interface to support for x16 SDRAM device width. In addition, it also
supports Un-buffered , Non-ECC SDRAM and Enhanced Open page arbitration
SDRAM paging scheme. For Refresh mechanism, the CBR ONLY supported.
For system compatibility and stability, don’t use memory module without
brand. You can also use the single or double-side SO-DIMM .The SO-DIMMs can
be out of order. You can install different size of SDRAM module.
Without out the contact and lock integrity of memory module with socket, it
will impact on the system reliability. Follow normal procedure to install your
SDRAM module into memory socket. Before locking, make sure that the module
has been fully inserted into the SO-DIMM slot.
NOTE:
For maintaining system stability, do not change any of SDRAM parameters in BIOS
setup to upgrade your system performance without acquiring technical information.