A method and a motherboard for automatically determining the memory type. By
applying
the characteristics of different operational voltages for various dynamic random
access memory modules, a software program is used to drive a control signal and
to automatically adjust the control voltage of the dynamic random access memory.
An automatic detection of the types of the dynamic random access memory is obtained.
The objectives of protecting the dynamic random access memory and to allow the
dynamic random access memory to operate normally can thus be achieved. The invention
not only provides the detection mechanism for accessing the dynamic random access
memory during the initial activation of the computer system, but also determines
the voltages required by the memory module for the computer system to enter various
power saving modes.