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ECS SI56P AVIO socket 7 AT motherboard

Part # 101649

Condition : Refurbished | Warranty : 30 days

Brand : ECS
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$75.00

 

ECS SI56P AVIO

"Picture is for representation only. Not a picture of the actual item"

Socket 7 AT board. SIS 5513 chipset. Supports up to Pentium 166. 4 SIMM sockets, 3PCI and 4ISA slots. Award BIOS. AT form factor. 13" x 8.5". Motherboard only. No manual, no cables.

ELITEGROUP COMPUTER SYSTEMS, INC.

SI56P AVIO

 

 

ProcessorCX M1/Pentium
Processor Speed75/90/100/120/133/150/166MHz
Chip SetSIS
Video Chip SetNone
Maximum Onboard Memory128MB (EDO supported)
Maximum Video MemoryNone
Cache256/512/1024KB
BIOSUnidentified
Dimensions330mm x 218mm
I/O Options32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), serial port, VGA feature connector, VGA interface, IR connector, VRM connector
NPU OptionsNone

 

 

 

 

 

 

 

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J1

External battery

J15

VGA feature connector

J5

Turbo LED

J16 pins 2 & 3

VGA interface

J6

Green PC connector

J16 pins 4 & 5

Floppy drive interface

J8

Turbo switch

J16 pins 6 & 7

IDE interface LED

J9

Reset switch

J16 pins 9 & 10

Serial port 2

J10

Power LED & keylock

J16 pins 11 - 15

Serial port 1

J11

Speaker

J16 pins 17 - 20

IDE interface 1

J12

Chassis fan power

J26

Parallel port

J13

IR connector (optional)

JP8

IDE interface 2

J14

32-bit PCI slots

PC1 - PC3

 

 

 

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Super I/O enabled

JP11

Open

 Super I/O disabled

JP11

Closed

»

Flash BIOS voltage select 5v

JP25

Pins 1 & 2 closed

 Flash BIOS voltage select 12v

JP25

Pins 2 & 3 closed

»

CMOS memory normal operation

JP26

Open

 CMOS memory clear

JP26

Closed

»

On board video enabled

JP27

Closed

 On board video disabled

JP27

Open

 

 

 

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

Bank 1

TAG

256KB (A)

(2) 32K x 32

None

(1) 32K x 8

256KB (B)

None

(8) 32K x 8

(1) 32K x 8

512KB

None

(8) 64K x 8

(1) 32K x 8

1MB

None

(8) 128K x 8

(1) 32K x 8

 

 

 

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

256KB (A)

Pins 1 & 2 closed

Pins 1 & 2 closed

256KB (B)

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

Pins 1 & 2 closed

1MB

Pins 2 & 3 closed

Pins 2 & 3 closed

 

 

 

CACHE TYPE CONFIGURATION

Size

JP1

JP2

»

Mixed

Pins 2 & 3 closed

Pins 2 & 3 closed

 

Pure

Pins 1 & 2 closed

Pins 1 & 2 closed

 

 

 

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP15

JP22

JP24

120MHz

50MHz

2x

1 & 2

Open

Closed

150MHz

60MHz

2x

3 & 4

Open

Closed

166MHz

66MHz

2x

1 & 2, 3 & 4

Open

Closed

Note: Pins designated should be in the closed position.

 

 

 

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP15

JP22

JP24

75MHz

50MHz

1.5x

1 & 2

Open

Open

90MHz

60MHz

1.5x

3 & 4

Open

Open

100MHz

66MHz

1.5x

1 & 2, 3 & 4

Open

Open

120MHz

60MHz

2x

3 & 4

Open

Closed

133MHz

66MHz

2x

1 & 2, 3 & 4

Open

Closed

150MHz

60MHz

2.5x

3 & 4

Closed

Closed

166MHz

66MHz

2.5x

1 & 2, 3 & 4

Closed

Closed

Note: Pins designated should be in the closed position.

 

 

 

CPU VOLTAGE SELECTION

Voltage

JP16

3.3v (STD)

Pins 1 & 2 closed

3.385v (VR)

Pins 3 & 4 closed

3.525v (VRE)

Pins 5 & 6 closed

 

 

 

 

DMA CHANNEL SELECTION

Channel

JP12

JP13

»

1

Pins 1 & 2 closed

Pins 1 & 2 closed

 

3

Pins 2 & 3 closed

Pins 2 & 3 closed

 

 


 
 
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