System Memory; Overview; Memory Configurations - Asus P5GDC User Manual

1.4

System memory

1.4.1 1.4.1 1.4.1 1.4.1 1.4.1

Overview

Overview Overview Overview Overview
The motherboard comes with two 240-pin Double Data Rate (DDR2) and
four 184-pin DDR Dual Inline Memory Modules (DIMM) sockets.
DDR2 DIMMS are notched differently to prevent installation on a DDR DIMM
socket.
The following figure illustrates the location of the sockets:
P5GDC
P5GDC DIMM sockets
To prevent damage to the motherboard, d o n o t u s e D D R a n d D D R 2
m e m o r y s i m u l t a n e o u s l y . m e m o r y s i m u l t a n e o u s l y . m e m o r y s i m u l t a n e o u s l y .
m e m o r y s i m u l t a n e o u s l y . m e m o r y s i m u l t a n e o u s l y .
1.4.2 1.4.2 1.4.2

Memory Configurations

Memory Configurations Memory Configurations
1.4.2 1.4.2 Memory Configurations Memory Configurations
You may install 256 MB, 512 MB, and 1 GB unbuffered non-ECC DDR/DDR2
DIMMs into the DIMM sockets using the memory configurations in this
section.
•
•
•
1 - 1 2 1 - 1 2
1 - 1 2 1 - 1 2 1 - 1 2
Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommend that you obtain memory modules from
the same vendor.
Due to chipset resource allocation, the system may detect less than
4 GB system memory when you installed four 1 GB DDR memory
modules.
This motherboard does not support memory modules made up of
128 Mb chips or double sided x16 memory modules.
DDR_B1
DDR_B2
DDR_A2
DDR_A1
d o n o t u s e D D R a n d D D R 2 d o n o t u s e D D R a n d D D R 2
d o n o t u s e D D R a n d D D R 2 d o n o t u s e D D R a n d D D R 2
C h a p t e r 1 : H a r d w a r e i n f o r m a t i o n C h a p t e r 1 : H a r d w a r e i n f o r m a t i o n
C h a p t e r 1 : H a r d w a r e i n f o r m a t i o n C h a p t e r 1 : H a r d w a r e i n f o r m a t i o n C h a p t e r 1 : H a r d w a r e i n f o r m a t i o n