Tyan Computer TYAN S1471 user manual 9DRAM Installation

3.9DRAM Installation

The S1471 uses a 64-bit data path from memory to CPU and can accommodate up to 128 MB of RAM. The mainboard supports Fast Page Mode, and EDO (Extended Data Out) 72 pin SIMMs. SDRAM(Synchronous) are also supported in the DIMM slots. DIMM's must be of the unbuffered variety. All installed memory will be automati- cally detected so there is no need to set jumpers.

wSIMM modules must be installed in pairs.

wEach pair of SIMMs must be of the same size and type. wThe mainboard supports 1, 2, 4 and 8MBx32 SIMMs.

wSIMM bank 0 and 1 can use either double or single sided SIMMs.

wTwo SIMMs or One unbuffered DIMM must be installed for the system to POST.

wSDRAM DIMMs can be installed one at a time.

wThe mainboard supports 1, 2 and 4Mx 64 DIMM modules.

wSIMM bank 0 and DIMM bank 0 cannot be used at the same time. SIMM bank 1 and DIMM bank 1 cannot be used at the same time. You can use SIMM bank 0 with DIMM bank 1.

You can use SIMM bank 1 with DIMM bank 0.

wThe following table shows some of the available memory configurations.

DRAM Bank	DRAM	SDRAM Bank	SDRAM Bank	Total
0	Bank 1	0	1
4MB x2	none	none	none	8MB
none	none	8MB x1	none	8MB
none	none	16MB x1	none	16MB
8MB x2	none	none	none	16MB
4MB x2	4MB x2	none	none	16MB
8MB x2	8MB x2	none	none	32MB
16MB x2	none	none	none	32MB
none	none	16MB x1	none	32MB
32MB x2	none	none	none	64MB
16MB x2	16MB x2	none	none	64MB
16MB x2	none	none	32MB x1	64MB
none	none	32MB x1	32MB x1	64MB
32MB x2	16MB x2	none	none	96MB
32MB x2	none	none	32MB x1	96MB
32MB x2	32MB x2	none	none	128MB

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