Apple twentieth anniversary mac 서비스 매뉴얼
Main unit
Processor
A PowerPC
™
603e processor with the following features:
m Processor speed: 250 megahertz (MHz)
m Built-in floating point unit (FPU)
m 50 MHz system bus
m 32 kilobytes (K) internal cache (16K data, 16K instructions)
Memory
The following come with your computer:
m 32 megabytes (MB) of dynamic random-access memory (DRAM) installed in either a single 32 MB
Dual Inline Memory Module (DIMM) or two 16 MB DIMMs
Each DIMM slot can accommodate a DIMM of up to 64 MB, for a maximum of 128 MB. DRAM
DIMMs installed later should be 64-bit wide, 5 volt ( V ), 168-pin extended data output (EDO) or
fast-paged mode DIMMs, with 60-nanosecond (ns) RAM access time or faster and a 2K refresh count.
The Single Inline Memory Modules (SIMMs) from older Macintosh computers are not compatible
with your computer and cannot be used. DIMMs that require a 4K refresh count and 3.3 V DIMMs
also cannot be used.
DIMMs installed later should be 64-bit wide, 5 volt ( V ), 168-pin extended data output (EDO) or
fast-paged mode DIMMs, with 60-nanosecond (ns) RAM access time or faster and a 2K refresh count.
The Single Inline Memory Modules (SIMMs) from older Macintosh computers are not compatible
with your computer and cannot be used. DIMMs that require a 4K refresh count and 3.3 V DIMMs
also cannot be used.
Appendix D
306
A p p e n d i x D
Technical Information