Epson NX User Manual - Page 22

Memory, ROM BIOS and CMOS RAM

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System Description Memory The 170MB and 240MB HDD configurations for this system have 4MB of memory soldered on the system board and one 16MB SIMM installed, for 20MB total memory. The 525MB HDD configuration has 4MB of memory soldered on the system board and two 16MB SIMMs installed, for 36MB total memory. The DRAM on the system board consists of eight high-performance 512KB, 70-ns chips. The system supports 1, 4, 16, or 64MB (when available), 70-ns SIMMs; two SIMMs may be installed for a maximum of 128MB Memory is controlled by a custom ASIC designed by Epson that permits burst cycles from standard DRAM. The system memory has the following features: 0 Standard memory includes cache and shadow RAM 0 ROM BIOS and CMOS RAM 0 Video DRAM 0 Zero wait state memory access 0 32-bit data access 0 LIM 4.0 EMS compatiblity. Figure l-9 shows the system memory map. Epson NX Sevice Manual 1-15

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System
Description
Memory
The 170MB and 240MB HDD configurations for this system have 4MB of memory soldered
on the system board and one 16MB SIMM installed, for 20MB total memory. The 525MB
HDD configuration has 4MB of memory soldered on the system board and two 16MB
SIMMs installed, for 36MB total memory. The DRAM on the system board consists of eight
high-performance 512KB, 70-ns chips. The system supports 1, 4, 16, or 64MB (when
available), 70-ns SIMMs; two SIMMs may be installed for a maximum of 128MB Memory
is controlled by a custom ASIC designed by Epson that permits burst cycles from standard
DRAM. The system memory has the following features:
0
Standard memory includes cache and shadow RAM
0
ROM BIOS and CMOS RAM
0
Video DRAM
0
Zero wait state memory access
0
32-bit data access
0
LIM 4.0 EMS compatiblity.
Figure l-9 shows the system memory map.
Epson NX Sevice
Manual
1-15