COMPAQ COMPUTER CORPORATION DeskPro 486/25 (Model 001532) Processor 80486DX Processor Speed 25MHz Chip Set Compaq Max. Onboard DRAM 100MB (on system memory card) Cache None BIOS Compaq Dimensions 332mm x 333mm I/O Options 32-bit system memory card slot, floppy drive interfaces (2) NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Bus mouse C1 3.5 inch floppy FD2 drive interface Parallel port C2 Drive access LED LED Serial port 1 C3 System memory card MEM VGA port C4 Drive power P1-P6 Main power DCIN Speaker SPK Fan power FAN VGA feature VGA interface 5.25 inch floppy FD1 drive interface USER CONFIGURABLE SETTINGS Function Jumper Position » Maintenece mode disabled E1 pins 2 & 3 closed Maintenance mode enabled E1 pins 1 & 2 closed » Password check at power-on E2 pins 2 & 3 enabled closed Password check at power-on E2 pins 1 & 2 disabled closed » VGA port enabled E3 pins 2 & 3 closed VGA port disabled E3 pins 1 & 2 closed » Local bus hidden refresh enabled E4 pins 2 & 3 closed Local bus hidden refresh disabled E4 pins 1 & 2 closed Note:Not all jumpers are present on all board revisions. SYSTEM MEMORY CARD (Model 1508) [Image] DRAM CONFIGURATION Size M0 M1 M2 M3 M4 M5 4MB NONE NONE NONE NONE NONE NONE 6MB 2MB NONE NONE NONE NONE NONE 8MB 2MB 2MB NONE NONE NONE NONE 10MB 2MB 2MB 2MB NONE NONE NONE 12MB 2MB 2MB 2MB 2MB NONE NONE 12MB 8MB NONE NONE NONE NONE NONE 12MB 8MB ----------------- NONE NONE NONE NONE DRAM CONFIGURATION (CON'T) Size M0 M1 M2 M3 M4 M5 14MB 2MB 2MB 2MB 2MB 2MB NONE 14MB 8MB 2MB NONE NONE NONE NONE 14MB 8MB ----------------- 2MB NONE NONE NONE 16MB 2MB 2MB 2MB 2MB 2MB 2MB 16MB 8MB 2MB 2MB NONE NONE NONE 16MB 8MB ----------------- 2MB 2MB NONE NONE 18MB 8MB 2MB 2MB 2MB NONE NONE 18MB 8MB ----------------- 2MB 2MB 2MB NONE 20MB 8MB 2MB 2MB 2MB 2MB NONE 20MB 8MB ----------------- 2MB 2MB 2MB 2MB 20MB 8MB 8MB NONE NONE NONE NONE 20MB 8MB ----------------- 8MB NONE NONE NONE 20MB 8MB ----------------- 8MB ----------------- NONE NONE 22MB 8MB 2MB 2MB 2MB 2MB 2MB 22MB 8MB 8MB 2MB NONE NONE NONE 22MB 8MB ----------------- 8MB 2MB NONE NONE 22MB 8MB ----------------- 8MB ----------------- 2MB NONE 24MB 8MB 8MB 2MB 2MB NONE NONE 24MB 8MB ----------------- 8MB 2MB 2MB NONE 24MB 8MB ----------------- 8MB ----------------- 2MB 2MB 26MB 8MB 8MB 2MB 2MB 2MB NONE 26MB 8MB ----------------- 8MB 2MB 2MB 2MB 28MB 8MB 8MB 2MB 2MB 2MB 2MB 28MB 8MB 8MB 8MB NONE NONE NONE 28MB 8MB ----------------- 8MB 8MB NONE NONE 28MB 8MB ----------------- 8MB ----------------- 8MB NONE 28MB 8MB ----------------- 8MB ----------------- 8MB ----------------- 30MB 8MB 8MB 8MB 2MB NONE NONE 30MB 8MB ----------------- 8MB 8MB 2MB NONE 30MB 8MB ----------------- 8MB ----------------- 8MB 2MB 32MB 8MB 8MB 8MB 2MB 2MB NONE 32MB 8MB ----------------- 8MB 8MB 2MB 2MB 34MB 8MB 8MB 8MB 2MB 2MB 2MB 36MB 8MB 8MB 8MB 8MB NONE NONE 36MB 8MB ----------------- 8MB 8MB 8MB NONE 36MB 8MB ----------------- 8MB ----------------- 8MB 8MB 36MB 32MB ----------------- NONE NONE NONE NONE 38MB 8MB 8MB 8MB 8MB 2MB NONE 38MB 8MB ----------------- 8MB 8MB 8MB 2MB 38MB 32MB ----------------- 2MB NONE NONE NONE 40MB 8MB 8MB 8MB 8MB 2MB 2MB 40MB 32MB ----------------- 2MB 2MB NONE NONE DRAM CONFIGURATION (CON'T) Size M0 M1 M2 M3 M4 M5 44MB 8MB 8MB 8MB 8MB 8MB NONE 44MB 8MB ----------------- 8MB 8MB 8MB 8MB 44MB 32MB ----------------- 2MB 2MB 2MB 2MB 44MB 32MB ----------------- 8MB NONE NONE NONE 44MB 32MB ----------------- 8MB ----------------- NONE NONE 46MB 8MB 8MB 8MB 8MB 8MB 2MB 46MB 32MB ----------------- 8MB 2MB NONE NONE 46MB 32MB ----------------- 8MB ----------------- 2MB NONE 52MB 8MB 8MB 8MB 8MB 8MB 8MB 52MB 32MB ----------------- 8MB 8MB NONE NONE 52MB 32MB ----------------- 8MB ----------------- 8MB ----------------- 54MB 32MB ----------------- 8MB 8MB 2MB NONE 54MB 32MB ----------------- 8MB 8MB ----------------- 2MB 56MB 32MB ----------------- 8MB 8MB 2MB 2MB 60MB 32MB ----------------- 8MB 8MB 8MB NONE 60MB 32MB ----------------- 8MB ----------------- 8MB 8MB 62MB 32MB ----------------- 8MB 8MB 8MB 2MB 68MB 32MB ----------------- 8MB 8MB 8MB 8MB 68MB 32MB ----------------- 32MB ----------------- NONE NONE 70MB 32MB ----------------- 32MB ----------------- 2MB NONE 72MB 32MB ----------------- 32MB ----------------- 2MB 2MB 76MB 32MB ----------------- 32MB ----------------- 8MB NONE 76MB 32MB ----------------- 32MB ----------------- 8MB ----------------- 78MB 32MB ----------------- 32MB ----------------- 8MB 2MB 84MB 32MB ----------------- 32MB ----------------- 8MB 8MB 100MB 32MB ----------------- 32MB ----------------- 32MB ----------------- Note: The system memory card is factory configured with 4MB of DRAM on board. The system memory card uses proprietary memory modules, some require only one module space on the memory board, while others require two. In the cases where a double size module is used, the following space is marked with "-----------------", designating that space as occupied.