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Apollo IV PCI Pentium ISA Motherboard User’s Guide
2
Overview, Continued
Chipset The Apollo IV PCI Pentium ISA baby-AT size motherboard uses an Intel
430TX chipset, including CPU interface controller, advanced cache
controller, integrated DRAM controller, synchronous ISA bus controller, PCI
local bus interface, and an integrated power management unit. The Intel
430TX chipset supports intelligent diagnostic and power management
through features such as DMI support.
Expansion Slots The motherboard includes:
• three 16-bit ISA expansion slots and
• four 32-bit PCI expansion slots.
The PCI local bus throughput can be up to 132 megabytes per second.
L1 Internal Cache The Intel Pentium on the motherboard has an 8 KB data cache and an 8
KB instruction cache.
L2 Secondary Cache The motherboard has 512 KB of pipeline burst direct-mapped,
WriteBack L2 secondary cache memory. Up to 256 MB of system memory
can be cached.
Supported Standards The Apollo IV motherboard supports:
• DMI,
• the Intel DPMA (Dynamic Power Management Architecture,
• Concurrent PCI V2.0 and V2.1, and
• USB (Universal Serial Bus).
Switching Voltage Regulator This motherboard includes a switching voltage regulator that
significantly reduces the CPU and voltage regulator temperature. This voltage
regulator is also fully upgradable to the next generation of Socket 7 CPUs.
These new CPUs will require more electrical current and will generate more
heat.
Cont‘d