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E520

PHILIPS CONSUMER ELECTRONICS, CO.

E520

Device Type

Mainboard

Processor

Pentium

Processor Speed

75/90/100/120/133/150/166MHz

Chip Set

SIS

Video Chip Set

Unidentified

Maximum Onboard Memory

128MB (EDO supported) Unified Memory Architecture (UMA)

Cache

256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

VGA feature connector

CN9

Parallel port

CN2

Power LED

J12/pins 1 - 3

Serial port 2

CN3

Turbo LED

J12/pins 6 & 16

Serial port 1

CN4

Reset switch

J12/pins 8 & 18

PS/2 mouse port

CN5

IDE interface LED

J12/pins 10 & 20

Floppy drive interface

CN6

Speaker

J12/pins 11 - 14

IDE interface 2

CN7

Riser slot

SL1

IDE interface 1

CN8

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP11

Pins 1 & 2 closed

 

CMOS memory clear

JP11

Pins 2 & 3 closed

Factory configured - do not alter

JP13

Unidentified

Factory configured - do not alter

JP14

Unidentified

Factory configured - do not alter

JP25

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

(1) 16K x 8

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

JP15

JP16

JP19

JP20

75MHz

50MHz

1.5x

Open

Open

Closed

Closed

90MHz

60MHz

1.5x

Open

Open

Open

Closed

100MHz

66MHz

1.5x

Open

Open

Closed

Open

120MHz

60MHz

2x

Closed

Open

Open

Closed

133MHz

66MHz

2x

Closed

Open

Closed

Open

150MHz

60MHz

2.5x

Closed

Closed

Open

Closed

166MHz

66MHz

2.5x

Closed

Closed

Closed

Open

CPU VOLTAGE SELECTION

Voltage

JP5

JP6

JP7

3.3v

Closed

Open

Open

3.45v

Open

Closed

Open

3.6v

Open

Open

Closed