Chapter 3 Hardware Description
6
AI5VP/AI5VPB User’s Manual
3.1 Processor and CPU Voltage
The AI5VP/AI5VPB is designed to take a Pentium Processor with a bus
speed of 60, 66 and 75MHz. Since the internal clock of the CPU can be
multiples of 1.5, 2, 2.5, 3 and 3.5 of the bus clock, the CPU frequency can
be 75, 90, 100, 120, 133, 150, 166, 200 and 233MHz.
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 AI5VP/AI5VPB supports 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 AI5VP/AI5VPB motherboard supports four 72-pin SIMM and an
optional 168-pin DIMM (Dual In-line Memory Module) sockets for a
maximum total memory of 256MB. 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 and 32MB.
The following should be noted when populating the SIMM/DIMM
sockets:
1. SIMM1/SIMM2, SIMM3/SIMM4 or DIMM1 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.
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