AT & T
AT & T GLOBALYST 510
AT & T GLOBALYST 515
Processor | SL80486SX/SL80486SX2/SL80486DX2/SL80486DX4/P24T/ 486Overdrive |
Processor Speed | 25/33/50(internal)/66(internal)100(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | Cirrus Logic |
Maximum Onboard Memory | 64MB |
Maximum Video Memory | 1MB |
Cache | 256KB |
BIOS | IBM |
Dimensions | 330mm x 218mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA graphics pass through connector, VGA port, riser slot, cache slot |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
PS/2 mouse port | CN1 | Floppy drive interface | J10 |
Serial port 1 | CN2 | VGA graphics pass-through connector | J14 |
Serial port 2 | CN3 | Front panel LEDS | J15 |
Parallel port | CN4 | Speaker | J16 |
VGA port | CN5 | Riser slot | SL1 |
IDE interface | J8 | Cache slot | SL2 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | CMOS memory normal operation | J1 | Pins 2 & 3 closed |
CMOS memory clear | J1 | Pins 1 & 2 closed | |
Jumper information unavailable | J3V | Unidentified | |
On board video enabled | SW1/1 | On | |
On board video disabled | SW1/1 | Off | |
» | Monitor type select color | SW1/2 | On |
Monitor type select monochrome | SW1/2 | Off | |
Note: If a VGA processor is enabled, SW1/2 has no function. If the VGA controller is disabled, and a CGA or MDA controller is installed, set the switch to the above setting. |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
4MB | (1) 1M x 36 | None | None |
8MB | (1) 1M x 36 | (1) 1M x 36 | None |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 4M x 36 | None | None |
20MB | (1) 1M x 36 | (1) 4M x 36 | None |
20MB | (1) 4M x 36 | (1) 1M x 36 | None |
24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 36 |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 |
24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 | None |
36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
36MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 8M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 |
Note: The location of banks 0, 1, & 2 are unidentified. |
CACHE CONFIGURATION | |
Size | SL2 |
None | Not installed |
256KB | 256KB module installed |
VIDEO MEMORY CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | 512KB | None |
1MB | 512KB | 512KB |
Note: Bank 0 is factory installed and is not configurable. The size of the upgrade ships are unidentified. |
CPU SPEED SELECTION | |
Speed | JK1 |
25MHz | Pins 1 & 2, 5 & 6 closed |
33MHz | Pins 3 & 4, 5 & 6 closed |
50iMHz | Pins 1 & 2, 5 & 6 closed |
66iMHz | Pins 3 & 4, 5 & 6 closed |
100iMHz | Pins 3 & 4, 5 & 6 closed |
CPU TYPE SELECTION | ||||
Type | JC1 | JC2 | JC3 | JC4 |
SL80486SX | Pins 2 & 3 closed | Pins 2 & 3 closed | Closed | Closed |
SL80486DX | Pins 1 & 2 closed | Pins 1 & 2 closed | Open | Open |
SL80486DX2 | Pins 1 & 2 closed | Pins 1 & 2 closed | Open | Open |
SL80486DX4 | Pins 1 & 2 closed | Pins 1 & 2 closed | Open | Open |
486Overdrive | Pins 1 & 2 closed | Pins 1 & 2 closed | Open | Open |