Compaq 164SX Manual De Usuario

Features

XB1

RTC battery (CR2032)

J20

LEDs/speaker/buttons connectors

J1

Soft power connector

J21

SROM test port connector

J2

Input power (+3 V, +5 V, -5 V, +12 V, 
-12 V)

J22

ISA slot 1

J3

COM1/COM2 (DB9) connectors

J23

ISA slot 0

J4

Keyboard/mouse connectors

SW1

Configuration switchpack

J5

EIDE drive 2/3 connector

U48

System clock PLL (CY2081)

J6

EIDE drive 0/1 connector

U10, U11, 
U20, U22

L2 cache data SRAMs

J7

SDRAM DIMM 0 [0:63] connector

U21

L2 cache tag SRAM

J8

SDRAM DIMM 1 [64:128] connector

U33

21174 core logic chip

J9

SDRAM DIMM 2 [0:63] connector

U19, U26, 
U29

Memory address/control buffers

J10

SDRAM DIMM 3 [64:128] connector

U1, U3, U4, 
U5, U7, 
U12, U13, 
U17, U18, 
U23, U24, 
U25, U27

Data switches

J11

Diskette (floppy) drive connector

U40 to U43

Interrupt shift registers

J13

Parallel I/O connector

U30

Flash ROM (1MB)

J14

Microprocessor fan/fan sense connector U46

PCI-ISA Bridge (CY82C693U-NC)

J15

PCI slot 3 (32-bit)

U36 to U38

IDE buffers

J16

Fan power, enclosure (+12 V)

U47

Combination controller 
(FDC37C669)

J17

PCI slot 2 (32-bit)

U2, U28, 
U32

Reg-reg cache isolate logic

J18

PCI slot 1 (64-bit)

U31

Microprocessor, socketed 
(Alpha 21164PC)

J19

PCI slot 0 (64-bit)

U45

Microprocessor clock synthesizer 
(MC12439)