Asus P1-AH1 - Manual (Page 25)

2-9 ASUS Pundit P1-AH1
2.7 Installing memory modules
2.7.1 Overview
The system motherboard comes with two Double Data Rate (DDR) Dual
Inline Memory Modules (DIMM) sockets that support up to 2 GB non-ECC
PC5300/4200/3200 DDR DIMMs.
Refer to the illustration below for the location of the DDR DIMM sockets.
For optimum compatibility, we recommend that you obtain memory
modules from the same vendor. Refer to section 2.7.3 for a list of
qualified DDR vendors.
2.7.2 Memory configurations
You may install 64 MB, 128 MB, 256 MB, 512 MB, and 1 GB DDR DIMMs
to the DIMM sockets.
When installing one DDR DIMM module, install into DIMM_A1 slot
only.
®
184-pin DDR DIMM sockets
DIMMA1
DIMMB1