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Chapter One
AM-6060 Computer Owner's Manual, Rev. 00
AM-176 Board
The AM-176 board provides the AM-6060 with:
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4GB of direct memory addressability
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64KB external cache memory SIMM
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8KB on-chip processor instruction cache memory and 8KB of data cache
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On-board serial interface (not used in the AM-6060)
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On-board Ethernet controller with 32-bit DMA transfer capability
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Four on-board single inline memory module (SIMM) expansion slots, which support 60ns
DRAMs for up to 512MB of memory
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SCSI controller with standard and Wide SCSI interfaces
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20-pin cable connector to AM-368-10 10BaseT Ethernet adapter
Processor
The heart of your computer is its powerful CPU (Central Processing Unit), a high-speed 32-bit
microprocessor. AM-6060 computers have an MC68060 processor running at 66MHz.
Memory
The AM-176 board in the AM-6060 has four sockets in which main memory SIMMs (Single Inline
Memory Modules) are installed. You must always install SIMMs in pairs of equal capacity. The AM-
6060 supports a minimum of 8MB of memory and a maximum of 512MB. Always use PFB-00712-xx
60ns SIMMs.
See the specification sheet included with your computer for more detailed information on memory
capacity, and the AM-6060 Computer Service Manual for instructions on installing it.
Cache Memory
To streamline the use of repetitive instructions within a program and to decrease retrieval time, the AM-
176 board contains an external 64KB combined instruction/data cache. This cache improves the overall
system performance by reducing the number of clock cycles required by the processor to fetch
information from memory. In addition, the CPU has an 8KB instruction cache and an 8KB data cache.
CMOS Menu Setup
The CMOS setup procedure gives you many boot options. Among the CMOS menu options are:
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Select any SCSI disk, at any SCSI address, as the primary boot disk, and any SCSI disk or tape,
at any SCSI address, as an alternate boot device.
