COMPAQ COMPUTER CORPORATION
PRESARIO CDS 774/972/974/982/992
PRESARIO CDTV 978
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 75/90/100MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Max. Onboard DRAM  | 
 136MB  | 
| 
 Cache  | 
 256KB  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, modem port, CD-ROM audio connector, modem audio connector, video memory interface  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VGA port  | 
 CN1  | 
 Video memory connector  | 
 J4, J12  | 
| 
 PS/2 mouse port  | 
 CN2  | 
 External battery  | 
 J5  | 
| 
 Keyboard port  | 
 CN3  | 
 Modem audio connector  | 
 J7  | 
| 
 Modem port  | 
 CN4  | 
 CD-ROM audio connector  | 
 J10  | 
| 
 Modem port  | 
 CN5  | 
 Serial port 2  | 
 J14  | 
| 
 Serial port 1  | 
 CN6  | 
 VGA feature connector  | 
 J20  | 
| 
 Parallel port  | 
 CN7  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 J16  | 
 N/A  | 
| 
 »  | 
 CMOS memory normal operation  | 
 P2  | 
 Closed  | 
| 
 CMOS memory clear  | 
 P2  | 
 Open  | |
| 
 »  | 
 Password enabled  | 
 P3  | 
 pins 1 & 2 closed  | 
| 
 Password disabled  | 
 P3  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 CPU core to bus ratio speed select 1.5x  | 
 P11  | 
 pins 1 & 2 closed  | 
| 
 CPU core to bus ratio speed select 2x  | 
 P11  | 
 pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION (75MHZ CPU ONLY)  | |||
| 
 Size  | 
 Bank 0A  | 
 Bank 0  | 
 Bank 1  | 
| 
 20MB  | 
 12MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 28MB  | 
 12MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 28MB  | 
 12MB  | 
 (2) 2M x 36  | 
 NONE  | 
| 
 36MB  | 
 12MB  | 
 (2) 1M x 36  | 
 (2) 2M x 36  | 
| 
 36MB  | 
 12MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 44MB  | 
 12MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 44MB  | 
 12MB  | 
 (2) 4M x 36  | 
 NONE  | 
| 
 52MB  | 
 12MB  | 
 (2) 1M x 36  | 
 (2) 4M x 36  | 
| 
 52MB  | 
 12MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 60MB  | 
 12MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 60MB  | 
 12MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 76MB  | 
 12MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 76MB  | 
 12MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 84MB  | 
 12MB  | 
 (2) 1M x 36  | 
 (2) 8M x 36  | 
| 
 84MB  | 
 12MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 92MB  | 
 12MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 92MB  | 
 12MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 108MB  | 
 12MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 108MB  | 
 12MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 136MB  | 
 12MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 Note: Bank 0A is factory installed and is not configurable. Only 8MB of the onboard memory is used when 136MB is installed.  | |||
| 
 DRAM CONFIGURATION (75MHZ & 90MHZ CPU ONLY)  | |||
| 
 Size  | 
 Bank 0A  | 
 Bank 0  | 
 Bank 1  | 
| 
 16MB  | 
 8MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 24MB  | 
 8MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 24MB  | 
 8MB  | 
 (2) 2M x 36  | 
 NONE  | 
| 
 32MB  | 
 8MB  | 
 (2) 1M x 36  | 
 (2) 2M x 36  | 
| 
 32MB  | 
 8MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 40MB  | 
 8MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 40MB  | 
 8MB  | 
 (2) 4M x 36  | 
 NONE  | 
| 
 48MB  | 
 8MB  | 
 (2) 1M x 36  | 
 (2) 4M x 36  | 
| 
 48MB  | 
 8MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 DRAM CONFIGURATION (75MHZ & 90MHZ CPU ONLY CON’T)  | |||
| 
 Size  | 
 Bank 0A  | 
 Bank 0  | 
 Bank 1  | 
| 
 56MB  | 
 8MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 56MB  | 
 8MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 72MB  | 
 8MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 72MB  | 
 8MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 80MB  | 
 8MB  | 
 (2) 1M x 36  | 
 (2) 8M x 36  | 
| 
 80MB  | 
 8MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 88MB  | 
 8MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 88MB  | 
 8MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 104MB  | 
 8MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 104MB  | 
 8MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 136MB  | 
 8MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 Note: Bank 0A is factory installed and is not configurable.  | |||
| 
 DRAM CONFIGURATION (100MHZ CPU ONLY)  | |||
| 
 Size  | 
 Bank 0A  | 
 Bank 0  | 
 Bank 1  | 
| 
 24MB  | 
 16MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 32MB  | 
 16MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 32MB  | 
 16MB  | 
 (2) 2M x 36  | 
 NONE  | 
| 
 40MB  | 
 16MB  | 
 (2) 1M x 36  | 
 (2) 2M x 36  | 
| 
 40MB  | 
 16MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 48MB  | 
 16MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 48MB  | 
 16MB  | 
 (2) 4M x 36  | 
 NONE  | 
| 
 56MB  | 
 16MB  | 
 (2) 1M x 36  | 
 (2) 4M x 36  | 
| 
 56MB  | 
 16MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 64MB  | 
 16MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 64MB  | 
 16MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 80MB  | 
 16MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 80MB  | 
 16MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 88MB  | 
 16MB  | 
 (2) 1M x 36  | 
 (2) 8M x 36  | 
| 
 88MB  | 
 16MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 96MB  | 
 16MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 96MB  | 
 16MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 112MB  | 
 16MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 112MB  | 
 16MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 136MB  | 
 16MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 Note: Bank 0A is factory installed and is not configurable. Only 8MB of the onboard memory is used when 136MB is installed.  | |||
| 
 CACHE CONFIGURATION  | 
| 
 Note: This board is factory installed with 256KB. It is not configurable.  | 
| 
 CPU BUS SPEED CONFIGURATION  | |
| 
 Speed  | 
 P5  | 
| 
 50MHz  | 
 pins 2 & 3 closed  | 
| 
 60MHz  | 
 pins 1 & 2 closed  | 
| 
 VIDEO MEMORY CONFIGURATION  | 
| 
 Note: To upgrade video memory, install video module on jumpers J4 & J12.  |