TANDY/RADIO SHACK
SENSATION! (250-1650)
Processor | 80486SX/80487SX/ODP486 |
Processor Speed | 25MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 32MB |
Maximum Video Memory | 1MB |
Cache | None |
BIOS | Unidentified |
Dimensions | 394mm x 381mm |
I/O Options | CD-ROM interface, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA feature connector, VGA port, riser slot, audio connector, fax/data modem connector, CD-ROM adapter, modem port MIDI/game port, microphone connector, headphone connector, line out connector |
NPU Options | 80487SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VGA feature connector | CN1 | Serial port | Unidentified |
Floppy drive interface | CN2 | Parallel port | Unidentified |
CD audio connector | CN3 | MIDI/game port | Unidentified |
Fax/data modem connector | CN4 | Microphone connector | Unidentified |
CD-ROM interface | CN5 | Headphone connector | Unidentified |
CD-ROM adapter | CN6 | Line out connector | Unidentified |
IDE interface | CN7 | VGA port | Unidentified |
PS/2 mouse port | Unidentified | Riser slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | J9 | Unidentified |
» | Synthesizer IRQ15 enabled | J11 | Closed |
Synthesizer IRQ15 disabled | J11 | Open | |
» | Factory configured - do not alter | J12 | Unidentified |
» | Monitor type select color | J16 | Closed |
Monitor type select monochrome | J16 | Open | |
» | Factory configured - do not alter | J17 | Unidentified |
» | Waveform IRQ5 enabled | J21 | Closed |
Waveform IRQ5 disabled | J21 | Open | |
» | Monitor frequency select 31.5KHz | SW1/5 | Off |
Monitor frequency select 40KHz | SW1/5 | On | |
» | Factory configured - do not alter | SW1/6 | On |
» | VGA IRQ9 disabled | SW1/7 | Off |
VGA IRQ9 enabled | SW1/7 | On | |
» | On board video enabled | SW1/8 | On |
On board video disabled | SW1/8 | Off |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
4MB | None | None | None | (1) 1M x 36 |
6MB | (1) 512K x 36 | (1) 512K x 36 | (1) 256K x 36 | (1) 256K x 36 |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
8MB | None | None | (1) 1M x 36 | (1) 1M x 36 |
8MB | None | None | None | (1) 2M x 36 |
10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 512K x 36 | (1) 512K x 36 |
12MB | None | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | None | None | (1) 2M x 36 | (1) 2M x 36 |
18MB | (1) 2M x 36 | (1) 2M x 36 | (1) 256K x 36 | (1) 256K x 36 |
20MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x 36 | (1) 512K x 36 |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x 36 |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
VIDEO MEMORY CONFIGURATION |
Note: Board accepts 512KB/1MB of video memory. 512KB is factory installed and is not configurable. The size of the chips are unidentified. The number of banks is unidentified. |
VIDEO RESOLUTION SELECTION (800 X 600) | |||
Frequency | SW1/1 | SW1/2 | |
» | 56Hz | Off | Off |
60Hz | Off | On | |
72Hz | On | Off | |
56Hz | On | On |
VIDEO RESOLUTION SELECTION (1024 X 768) | |||
Frequency | SW1/3 | SW1/4 | |
» | 56Hz interlaced | Off | Off |
60Hz non-interlaced | Off | On |