Post (Power-On Self Test); Psb (Processor System Bus) Clock; Rdram (Rambus Dynamic Random Access Memory); Rimm (Rambus Inline Memory Module) - AOpen MX4SGI-4DN2 Online Manual

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The BIOS self-test procedure after power-on, sometimes, it is the first or the second screen shown on your monitor during
system boot.
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PSB Clock means the external bus clock of CPU.
CPU internal clock = CPU PSB Clock x CPU Clock Ratio
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A DRAM technology developed by Rambus Corporation*, to achieve high speed of memory through the use of multiple channels
in parallel by 16-bits. Basically, RDRAM uses new structure of Multibank, which is quite different from FPM, EDO, SDRAM.
Using different memory module as well, RDRAM uses "RIMM" with transfer rate of 600/700/800MHz, providing bandwidth as
high to 1.6GB.
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184-pin memory module that supports
RDRAM devices.
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RDRAM
memory technology. A RIMM memory module may contain up to maximum of 16
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