SOYO SY-6BA+ IV user manual Sdram, ¿Note

Motherboard Description SY-6BA+ IV

t wo, three, or four sockets. Using the serial presence detect (SPD) data structure, programmed into an E²PROM on the DIMM, the BIOS can determine the SDRAM’s size and speed. Minimum DIMM memory size is

8MB; maximum DIMM memory size is 256 MB. Memory size and speed can vary bet ween sockets.

The motherboard supports the following memory features:

•168- pin DIMMs with gold- plated contacts

•66/ 100/ 133 MHz SDRAM

•Non- ECC (64- bit) and ECC (72- bit) memory

•3.3 V memory only

•Supports 8/ 16/ 32/ 64/ 128/ 256 MB DIMM Modules

•Support unbuffered or registered single- or double- sided DIMMs

¿Note

Slot 1 processors with 100 MHz front-side bus should be paired only with 100 MHz SDRAM. Processors with 66 MHz front side bus can be paired with either 66 MHz or 100 MHz SDRAM.

1-8.2 SDRAM

SDRAM improves memory performance through memory access that is synchronous with the front- side bus clock. Burst transfer rates at x- 1- 1- 1 timing can be achieved using SDRAM, while asynchronous memory subsystem are typically limited at x- 2- 2- 2 transfer rates.

¿Note

All memory components and DIMMs used with the SY-6BA+ IV motherboard must comply with the PC SDRAM specifications. These include: the PC SDRAM Specification (memory component specific), the PC Unbuffered DIMM Specification, and the PC Serial Presence Detect Specification.

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