Asus P4PE P4PE User Manual - Page 37

Memory configurations

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2.5.2 Memory configurations You may install any DDR DIMMs with 64MB, 128MB, 256MB, 512MB, and 1GB densities into the DIMM sockets. Use only the following combinations to install DDR DIMMs. Otherwise, the system may not boot up. DDR DIMM1 (Rows 0&1) SS/DS SS/DS * SS - Single-sided DIMM DS - Double-sided DIMM DDR DIMM2 (Rows 2&3) DS SS DDR DIMM3 (Rows 3&2) None SS 1. DDR DIMM sockets 2 and 3 share the same rows, so if you install a double-sided DIMM into DIMM2 socket, you must leave DIMM3 socket empty. 2. You may install single-sided DIMMs into DIMM2 and DIMM3 sockets at the same time but neither one can be x16 DDR module. 3. Double-sided x16 DDR DIMMs are not supported on this motherboard. ASUS P4PE motherboard user guide 2-11

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ASUS P4PE motherboard user guide
2-11
2.5.2
Memory configurations
You may install any DDR DIMMs with 64MB, 128MB, 256MB, 512MB, and
1GB densities into the DIMM sockets.
1.
DDR DIMM sockets 2 and 3 share the same rows, so if you install
a double-sided DIMM into DIMM2 socket, you must leave DIMM3
socket empty.
2.
You may install single-sided DIMMs into DIMM2 and DIMM3
sockets at the same time but neither one can be x16 DDR module.
3.
Double-sided x16 DDR DIMMs are not supported on this
motherboard.
Use only the following combinations to install DDR DIMMs. Otherwise,
the system may not boot up.
DDR DIMM1
DDR DIMM2
DDR DIMM3
(Rows 0&1)
(Rows 2&3)
(Rows 3&2)
SS/DS
DS
None
SS/DS
SS
SS
*
SS - Single-sided DIMM
DS - Double-sided DIMM