How to identify PC133 SDRAM

Although most of the experts agree that Rambus is an inevitable stage in PC development, PC133 SDRAM is seen as a sensible revolutionary technology. It is the one, which confers many advantages that make it very attractive to chip makers unsure of how long interest in Direct RDRAM will take to materialize. In early 1999, a number of non-Intel chipset makers decided to release chipsets, which supported the faster PC133 SDRAM.

PC133 SDRAM is capable of transferring data at a rate up to 1.6 GBps, as compared with the hitherto conventional speeds of up to 800 MBps, which requires no radical changes in motherboard engineering, has no price premium on the memory chips themselves as well as has no problems in volume supply. While the fixed availability of Direct RDRAM slipping, it appeared that Intel had little option other than to support PC133 SDRAM, especially given the widespread rumours that chipset and memory manufacturers were working with AMD to ensure that their PC133 SDRAM chips will work on the fast bus on the K6-III processor.

While PC133 SDRAM can be used with motherboards having a 100MHz front side bus, the memory will operate as fast as the slowest ‘link’ in your system. In this case, the motherboards 100MHz front side bus is used. If you are to install a PC133 SDRAM module in a system with a 100MHz FSB, or in a system, containing a 100MHz module, the PC133 module will operate only at 100MHz. PC133 is only available in the form of a 168-pin DIMM.

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