HEWLETT-PACKARD COMPANY
HP VECTRA 486N PC Series
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2  | 
| 
 Processor Speed  | 
 16/20/25/33/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 HP  | 
| 
 Max. Onboard DRAM  | 
 48MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 HP  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Bus mouse port, floppy interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA port  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VGA port  | 
 CN1  | 
 Parallel port  | 
 CN4  | 
| 
 Serial port 2  | 
 CN2  | 
 Bus mouse  | 
 CN5  | 
| 
 Serial port 1  | 
 CN3  | 
 Riser card  | 
 S1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Switch  | 
 Position  | |
| » | 
 I/O controller index select 0388h and data address select 0398h  | 
 SWA/3  | 
 Off  | 
| 
 I/O controller index select 026Fh and data address select 026Eh  | 
 SWA/3  | 
 On  | |
| » | 
 ROM setup write enabled  | 
 SWA/4  | 
 Off  | 
| 
 ROM setup write disabled  | 
 SWA/4  | 
 On  | |
| » | 
 IRQ12 select mouse port (CN5)  | 
 SWB/1  | 
 Off  | 
| 
 IRQ12 disabled  | 
 SWB/1  | 
 On  | |
| » | 
 IRQ9 disabled  | 
 SWB/2  | 
 Off  | 
| 
 IRQ9 select VGA port  | 
 SWB/2  | 
 On  | |
| » | 
 VGA port enabled  | 
 SWB/3  | 
 Off  | 
| 
 VGA port disabled  | 
 SWB/3  | 
 On  | |
| » | 
 Password check enabled  | 
 SWB/4  | 
 Off  | 
| 
 Password check disabled (password clear)  | 
 SWB/4  | 
 On  | |
| » | 
 CMOS memory normal operation  | 
 SWB/5  | 
 Off  | 
| 
 CMOS memory clear  | 
 SWB/5  | 
 On  | |
| » | 
 Security mode disabled (CMOS setup may be changed)  | 
 SWB/6  | 
 Off  | 
| 
 Security mode enabled (CMOS setup may not be changed)  | 
 SWB/6  | 
 On  | |
| » | 
 CPU upgrade socket disabled (CPU upgrade not installed)  | 
 SWB/8  | 
 Off  | 
| 
 CPU upgrade socket enabled (CPU upgrade installed)  | 
 SWB/8  | 
 On  | |
| 
 DRAM CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 6MB  | 
 (1) 1M x 36  | 
 (1) 512K x 36  | 
 NONE  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 10MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 512K x 36  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 14MB  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 512K x 36  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
| 
 20MB  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 22MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 512K x 36  | 
| 
 24MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
| 
 28MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
| 
 36MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 CPU SPEED CONFIGURATION  | ||
| 
 Speed  | 
 SWA/1  | 
 SWA/2  | 
| 
 16MHz  | 
 Off  | 
 Off  | 
| 
 20MHz  | 
 On  | 
 Off  | 
| 
 25MHz  | 
 On  | 
 On  | 
| 
 33MHz  | 
 On  | 
 On  | 
| 
 50iMHz  | 
 On  | 
 On  | 
| 
 66iMHz  | 
 On  | 
 On  | 
| 
 VIDEO MEMORY CONFIGURATION  | |
| 
 Size  | 
 Bank 0  | 
| 
 512KB  | 
 NONE  | 
| 
 1024KB  | 
 (4) 44256  | 
| 
 VIDEO SWITCH CONFIGURATION  | |
| 
 Size  | 
 SWB/7  | 
| 
 512KB  | 
 Of  | 
| 
 1024KB  | 
 Off  |