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Sunday, October 22, 2017

DRAM? SDRAM ?

Memory FAQ Topics
DRAM? SDRAM ?
Q. If a SDRAM DIMM module is assembled with a -10 SDRAM chip, is it considered PC100 compatible?
A. No - An SDRAM DIMM with -10 (100 MHz) chip will support only 66 MHz Systems. This type of module is not guaranteed to run consistently in a PC100, 100 MHz system.

In order for the module to be PC100 compatible the components need to be marked with -8A, -8B, -8C, -8D or -8E (or 125 MHz)and example taken from micron chips.

Micron Modules with -8A through -8C sdram chips will run at 100 MHz at a CAS latency of 3.

Modules with -8D or -8E components will run at 100 MHz at a CAS latency of 2.

Refer to the original manufacturer data sheet to determined the correct CAS latency setting.

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