"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
| Processor | CX M1/Pentium |
| Processor Speed | 75/90/100/120/133/150/166MHz |
| Chip Set | SIS |
| Video Chip Set | None |
| Maximum Onboard Memory | 128MB (EDO supported) |
| Maximum Video Memory | None |
| Cache | 256/512/1024KB |
| BIOS | Unidentified |
| Dimensions | 330mm x 218mm |
| I/O Options | 32-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 Options | None |
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 | |