American Megatrends Super Voyager PCI-II User Manual page 6

Overview,
Continued
Main System Memory
The motherboard requires Fast Page Mode SIMMs operating at 70 ns (RAS access time). The motherboard
supports up to 64 MB of onboard system memory via four 32-bit 72-pin SIMMs (Single Inline Memory
Modules). Supported SIMM types include: 256 KB x 36, 512 KB x 36, 1 MB x 36, 2 MB x 36, 4 MB x 36,
8 MB x 36, or 16 MB x 36 SIMMs.
Fast ATA
This motherboard supports the Fast ATA specification up to mode 4.
L2 Secondary Cache Memory
The motherboard supports 128 KB or 256 KB of direct mapped, write-back L2 external (secondary) cache
memory.
The external (secondary) cache memory is mounted on the motherboard in two rows of four SRAMs each.
The Data SRAM is 15 ns 32 KB x 8 5V SRAMs.
Cache memory is enabled and disabled through WINBIOS Setup Advanced Setup.
All installed system memory can be read from or written to L1 internal cache memory and L2 external
cache memory.
Super Voyager PCI-II 486 ISA Motherboard User's Guide
Caution
You must use 5.V SRAMs when upgrading from 128 KB
to 256 KB of L2 secondary cache memory.
Cont'd
3