2 memory configurations, Memory configurations -8 – Asus RS500A-X6/PS4 User Manual
Page 26
Chapter 2: Hardware setup
2-8
2.3.2
Memory Configurations
You may install 1 GB, 2 GB, 4 GB, or 8GB registered ECC/unbuffered ECC DDR3
DIMMs into the DIMM sockets using the memory configurations in this section.
Always install DIMMs with the same CAS latency. For optimum compatibility, it
is recommended that you obtain memory modules from the same vendor.
Memory population table
SR: Single Rank; DR: Double Rank; QR: Quad Rank
DIMM0 DIMM1 DIMM2 Max MHz (1.5V) Max MHz (1.35V) Timing Mode
UDIMM
--
--
SR/DR
800
800
1T
SR/DR
--
SR/DR
800
800
1T
--
--
SR/DR
1066
1066
1T
SR/DR
--
SR/DR
1066
1066
1T
--
--
SR/DR
1333
1333
1T
SR
--
SR
1333
1333
2T
DR
--
DR
1333
--
2T
SR
--
DR
1333
--
2T
DR
--
SR
1333
--
2T
RDIMM
--
--
SR/DR
667
667
SR/DR
--
SR/DR
667
667
--
QR SR/DR
667
667
SR/DR SR/DR SR/DR
667
667
SR/DR QR SR/DR
667
667
--
--
SR/DR
800
800
SR/DR
--
SR/DR
800
800
--
QR SR/DR
800
--
SR/DR SR/DR SR/DR
800
800
--
QR
--
800
800
--
--
SR/DR
1066
1066
SR/DR
--
SR/DR
1066
1066
SR
SR
SR
1066
--
--
--
SR/DR
1333
1333
SR
--
SR
1333
1333
DO NOT install DIMMs of different voltages on the motherboard at the same
time, such as a combination of 1.5V DIMMs and 1.35V LVDIMMs.