IWILL P4R533, User Manual, Page: 54 / 104

P4R533/P4R533-N Motherboard
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User’s Manual 4•8
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Installing System Memory
This section details the procedure for installing system
memory on the motherboard. Correct memory configu-
ration is critical for proper system operation. Please re-
view this section carefully and follow the configuration
guidelines precisely.
Memory Specifications
The motherboard has four RIMM module sockets. The
sockets operate in pairs or “banks”. This motherboard
uses Rambus DRDRAM RIMM modules for system
memory. The system memory specification are:
• Rambus DRDRAM RIMM modules
• PC800 or PC1066 memory
• Maximum 2GB total system memory
Memory Configuration Options
This motherboard has specific memory configuration re-
quirements. These include:
• All sockets must have either RIMM or CRIMM mod-
ules installed in them.
• Any capacity RIMM may be used in any socket as
long as total memory does not exceed 2GB.
• Modules must be the same speed (PC800 or PC1066).
Module Types
There are two modules types:
• RIMM
Rambus Inline Memory Module – a Rambus DRDRAM
memory module.
• CRIMM
Continuity Rambus Inline Memory Module – not a
memory module. Used to occupy empty sockets
CRIMMs must be installed in all sockets that do not have
RIMMs installed in them. No sockets can remain empty.
Module Configurations
The figures on the next page illustrate the allowed mod-
ule configurations. Do not install modules in any other
configuration. Please note the configurations indicate
module positioning, not capacity. You can install any
mixture of module capacities that does not exceed 2GB.