Go Back

Updating Product Details

Please wait while we refresh the product information...

SI56P AVIO socket 7 AT motherboard

SI56P AVIO socket 7 AT motherboard

Part #: 101649
Condition: Refurbished
Warranty: 30 days
Brand: ECS
| Log in to add review
Rate this product:

$52.65

Updating Variation

Please wait while we update product details...

 

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
PurposeLocationPurposeLocation
PS/2 mouse interfaceJ1External batteryJ15
VGA feature connectorJ5Turbo LEDJ16 pins 2 & 3
VGA interfaceJ6Green PC connectorJ16 pins 4 & 5
Floppy drive interfaceJ8Turbo switchJ16 pins 6 & 7
IDE interface LEDJ9Reset switchJ16 pins 9 & 10
Serial port 2J10Power LED & keylockJ16 pins 11 - 15
Serial port 1J11SpeakerJ16 pins 17 - 20
IDE interface 1J12Chassis fan powerJ26
Parallel portJ13IR connector (optional)JP8
IDE interface 2J1432-bit PCI slotsPC1 - PC3

 

 

 

USER CONFIGURABLE SETTINGS
FunctionLabelPosition
»Super I/O enabledJP11Open
 Super I/O disabledJP11Closed
»Flash BIOS voltage select 5vJP25Pins 1 & 2 closed
 Flash BIOS voltage select 12vJP25Pins 2 & 3 closed
»CMOS memory normal operationJP26Open
 CMOS memory clearJP26Closed
»On board video enabledJP27Closed
 On board video disabledJP27Open

 

 

 

DRAM CONFIGURATION
SizeBank 0Bank 1
8MB(2) 1M x 36None
16MB(2) 2M x 36None
16MB(2) 1M x 36(2) 1M x 36
24MB(2) 2M x 36(2) 1M x 36
32MB(2) 4M x 36None
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 36None
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
SizeBank 0Bank 1TAG
256KB (A)(2) 32K x 32None(1) 32K x 8
256KB (B)None(8) 32K x 8(1) 32K x 8
512KBNone(8) 64K x 8(1) 32K x 8
1MBNone(8) 128K x 8(1) 32K x 8

 

 

 

CACHE JUMPER CONFIGURATION
SizeJP6JP7
256KB (A)Pins 1 & 2 closedPins 1 & 2 closed
256KB (B)Pins 1 & 2 closedPins 1 & 2 closed
512KBPins 2 & 3 closedPins 1 & 2 closed
1MBPins 2 & 3 closedPins 2 & 3 closed

 

 

 

CACHE TYPE CONFIGURATION
SizeJP1JP2
»MixedPins 2 & 3 closedPins 2 & 3 closed
 PurePins 1 & 2 closedPins 1 & 2 closed

 

 

 

CPU SPEED SELECTION (CYRIX)
CPU speedClock speedMultiplierJP15JP22JP24
120MHz50MHz2x1 & 2OpenClosed
150MHz60MHz2x3 & 4OpenClosed
166MHz66MHz2x1 & 2, 3 & 4OpenClosed
Note: Pins designated should be in the closed position.

 

 

 

CPU SPEED SELECTION (INTEL)
CPU speedClock speedMultiplierJP15JP22JP24
75MHz50MHz1.5x1 & 2OpenOpen
90MHz60MHz1.5x3 & 4OpenOpen
100MHz66MHz1.5x1 & 2, 3 & 4OpenOpen
120MHz60MHz2x3 & 4OpenClosed
133MHz66MHz2x1 & 2, 3 & 4OpenClosed
150MHz60MHz2.5x3 & 4ClosedClosed
166MHz66MHz2.5x1 & 2, 3 & 4ClosedClosed
Note: Pins designated should be in the closed position.

 

 

 

CPU VOLTAGE SELECTION
VoltageJP16
3.3v (STD)Pins 1 & 2 closed
3.385v (VR)Pins 3 & 4 closed
3.525v (VRE)Pins 5 & 6 closed

 

 

 

 

DMA CHANNEL SELECTION
ChannelJP12JP13
»1Pins 1 & 2 closedPins 1 & 2 closed
 3Pins 2 & 3 closedPins 2 & 3 closed

 

 

 
 

No information available

No reviews yet. Be the first to share your experience!

Copyright © 2026 Interloper Inc. All Rights Reserved.