Intel AI5VG Processor and CPU Voltage, 3.2 L2 Cache Memory, Main Memory, Hardware Description

Chapter 3 Hardware Description

3.1 Processor and CPU Voltage

The AI5VG is designed to take a Pentium Processor with a bus speed of 60 and 66 MHz. The internal clock of the CPU can be multiples of 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 of the bus clock, the CPU frequency can be 90 to 300MHz.

The onboard CPU voltage regulator provides support for CPUs Vcore which require voltage other than 3.3V such as 2.8V, and/or power consumption higher than 10 watts.

3.2 L2 Cache Memory

The AI5VG supports 512KB P.B. (Pipelined Burst) Synchronous Cache. The P.B. Synchronous Cache boosts the system’s performance, 10% higher than regular Asynchronous Cache.

3.3 Main Memory

The AI5VG motherboard supports four 72-pin SIMMs and two 168-pin DIMMs (Dual In-line Memory Module) sockets. The DRAMs for the SIMM sockets can be 4MB, 8MB, 16MB, 32MB, and 64MB in EDO and FPM types. DIMM modules can be 8MB, 16MB, 32MB, 64MB and 128MB in EDO DRAM or SDRAM type.

The following should be noted when populating the SIMM/DIMM sockets:

1.SIMM1/SIMM2, SIMM3/SIMM4 or DIMM1, DIMM2 bank can be populated first.

2.Each bank** should consist of the same size SIMMs.

3.Each bank should consist of the same type SIMMs. For example, SIMM1 and SIMM2 are both be EDO or Page Mode.

**Each bank consists of two SIMM slots or one DIMM slot. For example, SIMM 1 and SIMM 2 are considered as one bank and DIMM 1 as another one.

6 AI5VG Pentium VP3 Baby AT Motherboard User’s Manual