TYAN S1572 ATX Pentium Class 75 thru 200MHz 430TX PCI-ISA System Board User's Manual

15S1572-001-01 http://www.tyan.com
3.10 DRAM Installation
The S1572 uses a 64-bit data path from memory to CPU and can
accommodate up to 256MB 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, 8 and 16MBx32 SIMMs.
wSIMM bank 0, 1 and 2 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.
wIf you use 4Mx64 DIMMs you cannot use DRAM bank 2.
wWe do not recommend using DRAM bank 2 along with DIMMs.
wThe following table shows some of the available memory configurations.
DRAM
Bank 0
DRAM
Bank 1
DRAM
Bank 2
SDRAM
Bank 0
SDRAM
Bank 1
Total
4MB x2 none none none none 8MB
none none none 8MB x1 none 8MB
none none none 16MB x1 none 16MB
8MB x2 none none none none 16MB
4MB x2 4MB x2 4MB x2 none none 24MB
16MB x2 none none none none 32MB
none 8MB x2 none 16MB x1 none 32MB
32MB x2 none none none none 64MB
none none none none 64MB x1 64MB
none none none 32MB x1 64MB x1 96MB
none none none 64MB x1 64MB x1 128MB
64MB x2 none none none 64MB x1 192MB
64MB x2 64MB x2 64MB x2 none none 256MB