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PEGASUS

AMERICAN MEGATRENDS, INC.

PEGASUS

Processor

Pentium II

Processor Speed

200/233/266/300MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

768MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB (located on Pentium II CPU)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, VRM connector, USB connectors (2), CPU Slot 1

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J1

Power LED & keylock

J25

Serial port 2

J2

Reset switch

J27

Serial port 1

J3

Turbo LED

J28

Floppy drive interface

J4

Green PC connector

J30

Chassis fan power

J5

IDE interface LED

J31

CPU fan power

J6

Speaker

J32

Parallel port

J8

Chassis fan power

J33

IDE interface 2

J9

IR connector

J34

IDE interface 1

J11

32-bit PCI slots

PC1 PC4

USB connector 2

J14

CPU Slot 1

SL1

USB connector 1

J15

VRM connector

VRM

Chassis door intrusion connector

J23

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J20

Unidentified

Factory configured - do not alter

J24

Unidentified

Factory configured - do not alter

J26

Unidentified

CMOS memory normal operation

J29

Open

 

CMOS memory clear

J29

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(2) 1M x 36

None

None

16MB

(2) 1M x 36

(2) 1M x 36

None

16MB

(2) 2M x 36

None

None

24MB

(2) 2M x 36

(2) 1M x 36

None

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

40MB

(2) 4M x 36

(2) 1M x 36

None

48MB

(2) 4M x 36

(2) 2M x 36

None

48MB

(2) 4M x 36

(2) 1M x 36

(2) 1M x 36

56MB

(2) 4M x 36

(2) 2M x 36

(2) 1M x 36

64MB

(2) 8M x 36

None

None

64MB

(2) 4M x 36

(2) 4M x 36

None

80MB

(2) 8M x 36

(2) 2M x 36

None

80MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

88MB

(2) 8M x 36

(2) 2M x 36

(2) 1M x 36

96MB

(2) 8M x 36

(2) 4M x 36

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

96MB

(2) 8M x 36

(2) 2M x 36

(2) 2M x 36

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

104MB

(2) 8M x 36

(2) 4M x 36

(2) 1M x 36

112MB

(2) 8M x 36

(2) 4M x 36

(2) 2M x 36

128MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

136MB

(2) 8M x 36

(2) 8M x 36

(2) 1M x 36

136MB

(2) 16M x 36

(2) 1M x 36

None

144MB

(2) 16M x 36

(2) 2M x 36

None

144MB

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

160MB

(2) 16M x 36

(2) 4M x 36

None

160MB

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

168MB

(2) 16M x 36

(2) 4M x 36

(2) 1M x 36

176MB

(2) 16M x 36

(2) 4M x 36

(2) 2M x 36

192MB

(2) 16M x 36

(2) 8M x 36

None

192MB

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

200MB

(2) 16M x 36

(2) 8M x 36

(2) 1M x 36

208MB

(2) 16M x 36

(2) 8M x 36

(2) 2M x 36

224MB

(2) 16M x 36

(2) 8M x 36

(2) 4M x 36

256MB

(2) 16M x 36

(2) 16M x 36

None

256MB

(2) 16M x 36

(2) 8M x 36

(2) 8M x 36

256MB

(2) 32M x 36

None

None

264MB

(2) 16M x 36

(2) 16M x 36

(2) 1M x 36

272MB

(2) 16M x 36

(2) 16M x 36

(2) 2M x 36

288MB

(2) 16M x 36

(2) 16M x 36

(2) 4M x 36

320MB

(2) 16M x 36

(2) 16M x 36

(2) 8M x 36

384MB

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

512MB

(2) 32M x 36

(2) 32M x 36

None

520MB

(2) 32M x 36

(2) 32M x 36

(2) 1M x 36

528MB

(2) 32M x 36

(2) 32M x 36

(2) 2M x 36

544MB

(2) 32M x 36

(2) 32M x 36

(2) 4M x 36

576MB

(2) 32M x 36

(2) 32M x 36

(2) 8M x 36

640MB

(2) 32M x 36

(2) 32M x 36

(2) 16M x 36

768MB

(2) 32M x 36

(2) 32M x 36

(2) 32M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Do not use 16M x 36 SIMMs that have more than 36 chips per SIMM.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J16

J17

J18

200MHz

66MHz

3x

Closed

Open

Closed

233MHz

66MHz

3.5x

Closed

Open

Closed

266MHz

66MHz

4x

Closed

Open

Closed

300MHz

66MHz

4.5x

Closed

Open

Closed

CPU SPEED SELECTION (CONT)

CPU speed

Clock speed

Multiplier

J19

J21

J22

200MHz

66MHz

3x

Open

1 & 2

1 & 2, 5 & 6, 7 & 8

233MHz

66MHz

3.5x

Open

1 & 2

5 & 6, 7 & 8

266MHz

66MHz

4x

Open

1 & 2

1 & 2, 3 & 4, 7 & 8

300MHz

66MHz

4.5x

Open

1 & 2

3 & 4, 7 & 8

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

J12

 

1.8v

Pins 1 & 6, 2 & 7, 4 & 9 closed

 

1.85v

Pins 1 & 6, 2 & 7, 4 & 9, 5 & 10 closed

 

1.9v

Pins 1 & 6, 2 & 7, 3 & 8 closed

 

1.95v

Pins 1 & 6, 2 & 7, 3 & 8, 5 & 10 closed

 

2.0v

Pins 1 & 6, 2 & 7, 3 & 8, 4 & 9 closed

 

2.05v

Pins 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 closed

 

2.1v

Pins 5 & 10 closed

 

2.2v

Pins 4 & 9 closed

 

2.3v

Pins 4 & 9, 5 & 10 closed

 

2.4v

Pins 3 & 8 closed

 

2.5v

Pins 3 & 8, 5 & 10 closed

 

2.6v

Pins 3 & 8, 4 & 9 closed

 

2.7v

Pins 3 & 8, 4 & 9, 5 & 10 closed

2.8v

Pins 2 & 7 closed

 

2.9v

Pins 2 & 7, 5 & 10 closed

 

3.0v

Pins 2 & 7, 4 & 9 closed

 

3.1v

Pins 2 & 7, 4 & 9, 5 & 10 closed

 

3.2v

Pins 2 & 7, 3 & 8 closed

 

3.3v

Pins 2 & 7, 3 & 8, 5 & 10 closed

 

3.4v

Pins 2 & 7, 3 & 8, 4 & 9 closed

 

3.5v

Pins 2 & 7, 3 & 8, 4 & 9, 5 & 10 closed