AOpen MX3S-T, Online Manual

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Rambus is a memory technology that uses large burst mode data transfer. Theoretically, the data transfer should be high than
SDRAM . RDRAM is cascaded in channel operation. For Intel 820, only one RDRAM channel is supported, 16-bit data per
channel, and this channel may have maximum 32 RDRAM devices, no matter how many RIMM sockets.
R R I I M M M M ( ( R R a a m m b b u u s s I I n n l l i i n n e e M M e e m m o o r r y y M M o o d d u u l l e e ) )
184-pin memory module that supports RDRAM memory technology. A RIMM memory module may contain up to maximum of 16
RDRAM devices.
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SDRAM is one of the DRAM technologies that allow DRAM to use the same clock as the CPU host bus ( EDO and FPM are
asynchronous and do not have clock signal). It is similar as PBSRAM to use burst mode transfer. SDRAM comes in 64-bit
168-pin DIMM and operates at 3.3V. AOpen is the first company to support dual-SDRAM DIMMs onboard (AP5V), from Q1 1996
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A memory space in Flash-ROM to simulate E
2
PROM operation, AOpen motherboard uses Shadow E
2
PROM for jumper-less and
battery-less design
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