The text following was extracted from a file named DESKPRO8086.HLP This is, no doubt, information on the original Compaq Deskpro. ------------------------------------------------------------------------------------------------------------------------------ 1. FEATURES AND SPECIFICATIONS 2. CONFIGURATION 3. SPARE PART NUMBERS ==================================================================================================== 1. FEATURES AND SPECIFICATIONS ==================================================================================================== ***************************************************************************** * 1.1 HARD DRIVE SPECS * ***************************************************************************** 10mb Half Height Drive HH612-2 (or) ST212 Height 1 3/4"( 4.44cm) Width 5 7/8"(14.92cm) Depth 8 1/4"(20.96cm) 20mb Half Height Drive HH725A Height 1 3/4"( 4.44cm) Width 5 7/8"(14.92cm) Depth 8 1/4"(20.96cm) 30mb Full Height Drive BJ705-A Height 3 3/8"( 8.57cm) Width 5 7/8"(14.92cm) Depth 8 1/4"(20.96cm) Fixed Disk Drives 20 Megabyte ------------------------------------------- LED Indicator Green Formatted Capacity Per Drive 20 Mbytes Drives Supported One Drive Height Half Type NA Drive Size 5 1/4 in. Transfer Rate (Mb/s) 5 Bytes Per Sector 512 Sectors Per Track: Physical 17 Logical 17 Number of Surfaces 4 Tracks Per Surface 612 Access Times (including settling): Track to Track (ms) 38 Average (ms) 105 Maximum (ms) 205 Cylinders 612 Read/Write Heads 4 Logically Addressable Cylinders 612 Logically Addressable Heads 4 ***************************************************************************** * 1.2 TAPE DRIVE SPECS * ***************************************************************************** 10mb Tape Drive 110 Height 1 3/4"( 4.04cm) Width 6 " (15.03cm) Depth 8 1/4"(21.00cm) 10mb Tape Cartridge DC1000 TAPE DESKPRO GENTAPE.TX FIXED DISK DRIVE BACKUP 10MB TAPE ----------------------------------------------- LED Indicator Red Drive Height Half Approximate Operating Times per 10mb(min) Backup & Verify Formatted Cartridge 16 Unformatted Cartridge 50 Restore 8 Format Blank Cartridge 34 Maximum Formatted Capacities Per Tape 10mb Per Track 1.29mb Per Block 8192 Bytes Per Sector 1024 Bytes Mechanical Measurements Tape Width .15in Tape Length 185ft Tape Speed Read/Write (Both Directions) 39 IPS Rewind/Fast Forward 70 IPS Tape Format Read/Write Streaming Track Pattern Serpentine Number of Tracks 8 Number of Blocks per Track 158 Number of Data Sectors per Block 8 Recording Density/Inch 6400 bits Flux Reversals/Inch 6400 Track Density/Inch 59 Data Encoding Method MFM Data Transfer Rate (BPS) 250K Error Detection CRC Tape Cartridge 3M DC1000 ***************************************************************************** * 1.3 MEMORY SPECS * ***************************************************************************** 64x1 (150ns) DRAM Length 3/4"(1.9cm) Width 1/4"(0.7cm) 64x4 (150ns) DRAM Length 7/8"(2.3cm) Width 1/4"(0.7cm) 256x1(150ns) DRAM The COMPAQ DESKPRO Personal Computer is configured with 256-Kbytes for Randon Access Memory(RAM). The system can be expanded to 640 Kbytes of RAM on the system board by using a 512-Kbyte Memory Upgrade Kit. To add the 512-Kbyte Memory Upgrad Kit, the 128 Kbytes of socketed RAM must first be removed. The 512-Kbyte Memory Upgrade Kit added to the 128 Kbytes of soldered RAM gives the system 640 Kbytes of RAM. SYSTEM BOARD Standard Memory: 256 Kbytes ------ REMOVE ------ 128 Kbytes of socketed RAM Total Memory: 128 Kbytes ------ REMOVE ------ 512 Kbyte Memory Upgrade Kit Total Memory: 640 Kbytes ***************************************************************************** * 1.4 VIDEO SPECS * ***************************************************************************** COMPAQ DUAL-MODE MONITOR U.S. INTERNATIONAL ----------------------------------------------------------- Dimensions Width 14.7in 37.5cm Height 10.2in 26.0cm Depth 13.7in 34.8cm Weight 150.lbs 7.9 kg COMPAQ COLOR MONITOR ------------------------------------------------------------ Dimensions Width 13.9in 35.4cm Height 11.8in 30.0cm Depth 14.9in 38.0cm Weight 28.0lbs 12.9kg *ECG and VGC require system ROM H or later. ***************************************************************************** * 1.5 FLOPPY DRIVE SPECS * ***************************************************************************** DISKETTE DRIVES 360-KBYTE --------------------------------------------- LED Indicator Red Capacity Per Drive 360 Kbytes Drives Supported Two Drive Height Half Drive Size 5 1/4" Drive Rotation (RPM) 300 Transfer Rate (BPS) 250K Bytes per Sector 512 Sectors per Track 9 Tracks per Side 40 Access Times Track-to-Track (ms) 6 Average (ms) 80 Settling Time (ms) 15 Latency Average (ms) 100 Cylinders 40 Read/Write Heads 2 No 1.44mb or 1.2mb diskette drive available. Unit is 8bit system and these drives require a 16bit controller. ==================================================================================================== 2. CONFIGURATION ==================================================================================================== ***************************************************************************** * 2.1 CONTROLLER CONFIGURATION * ***************************************************************************** NOMENCLATURE -SWITCHES/JUMPER SETTING FDD Controller WD1002S-WX2 SW1 for Drive D: SW1 for Drive C: ------------------- ------------------- 10mb: 1=OFF 2=OFF 10mb: 3=OFF 4=OFF 20mb: 1=ON 2=OFF 20mb: 3=ON 4=OFF 30mb: 1=ON 1=ON 30mb: 3=ON 3=ON FDD Controller WD1002-WX2* ** SW1 for Drive D: SW1 for Drive C: WD1002-HX4 ------------------- ------------------- 10mb: 1=ON 2=ON 10mb: 3=ON 4=ON 20mb: 1=OFF 2=ON 20mb: 3=OFF 4=ON 30mb: 1=OFF 2=OFF 30mb: 3=OFF 4=OFF * Do not remove jumpers E17-E18. ** Earlier versions of this board have no switch settings and are fixed for the 10mb. ***************************************************************************** * 2.2 TAPE DRIVE CONFIGURATION * ***************************************************************************** NOMENCLATURE MIN.ROM SWITCHES/JUMPER SETTINGS --------------------------------------------------------------- 10MB Tape Drive E There are no jumpers to configure ***************************************************************************** * 2.3 ROMS CONFIGURATION * ***************************************************************************** ROMS are positioned in location U21. No configuration is required as the ROMs are recognized on bootup. ***************************************************************************** * 2.4 SYSTEM BOARD CONFIGURATION * ***************************************************************************** 8086 System (ALL ASSEMBLIES) NOMENCLATURE SWITCHES/JUMPER SETTINGS -------------------------------------------- 1 = OFF Reserved (always off) 2 = ON* No coprocessor 2 = OFF Coprocessor installed 3,4=ON * 640kb memory 3=ON,4=OFF 128kb memory 3,4=OFF 256kb memory 3=OFF,4=ON 512kb memory 5=ON,6=OFF* 80x25 COMPAQ VDU primary (MDA secondary) 5=ON,6=ON 80x25 COMPAQ EGA primary (MDA secondary) 5=OFF,6=ON 40x25 COMPAQ VDU ** primary (MDA secondary) 5=OFF,6=OFF 3rd party mono primary (RGBI secondary) * Default ** With a revision F or later system ROM ***************************************************************************** * 2.5 VIDEO CONFIGURATION * ***************************************************************************** Enh. Color Graphics ======================================== (000410 & 000471) SW1 SETTINGS (As the only/primary video) ======================================== 1 2 3 4 Monitor Type Power-On Mode ---------------- ----------------- --------------- ------ CECGB VIDEO ROM REV. OFF ON ON OFF COMPAQ COLOR 80x25(640x350) Color Spare Part# 106686-001 Comp. Enh Color ROM PN on ROM COMPAQ Dual-Mode ----- ---------- B 108281-001 ON ON ON OFF " 80x25(640x200) Color C 106633-001 D 106633-002 OFF OFF OFF ON RGBI Color 80x25(640x200) Color E 106633-003 COMPAQ Dual-Mode ON OFF OFF ON RGBI Color COMPAQ Dual-Mode 40x25(320x200) Color OFF OFF ON OFF COMPAQ Dual-Mode 80x25(720x350) Mono ======================================== SW1 SETTINGS (As the secondary video) ======================================== 1 2 3 4 Monitor Type Power-On Mode ---------------- ----------------- --------------- ------ OFF OFF ON ON same same same ON OFF ON ON same same same OFF ON ON ON same same same ON ON ON ON same same same OFF ON OFF ON same same same ======================================== SW2 SETTINGS ======================================== 1=OFF 2=OFF COMPAQ Color, Enh. Color (external) 1=ON 2=OFF RGBI Color (external) 1=OFF 2=ON COMPAQ Dual-Mode (external) 1=ON 2=ON No external (Portables) 3=OFF COMPAQ Dual-Mode internal (Portable, Plus, P286 & PII)) 3=ON No internal (PIII*, P386*, Desktops) 4=ON,5=OFF,6=ON Reserved *Set system board setting to monochrome mode ======================================== SW3 SETTINGS(000410 ONLY) ======================================== If installed, all OFF (Reserved) ======================================== JUMPER P1 (External Monitor) ======================================== 1-2 COMPAQ Color or Enhanced Color 2-3 RGBI Color or COMPAQ Dual-Mode ======================================== JUMPER JP3 ======================================== 1-2 3xxh (default) 2-3 2xxh VDU Controller Board J3 J5 Function (000031,000160,000345, ------- -------- --------------------------------------------- 000525) 2-3 2-3 Enable RGBI & Composite video (high scan) (Desktops default) 1-2 1-2 Disable RGBI & Composite video (high scan) (Portables default) VGC Controller Board JUMPER FUNCTION SETTING (000806,001241,109360) ---------- ------------ ------------- J1 or W1* Video RAM 1-2 16bit 2-3 8bit J2 or W2* Video ROM 2-3 8bit 1-2 16bit *Default VGC ROM LOCATIONS 000806 001241 &109360 U14 Even U11 Even U23 Odd U12 Odd VGC ROM REVISION (Spare PN 109315-001) REV PN on ODD ROM PN on EVEN ROM ---------- -------------- -------------- A.0 109327-001 109328-001 A.1 109327-002 109328-002 A.2 109327-003 109328-003 B.0 109793-001 109794-001 B.1 109793-002 109794-002 D.0 109793-003 109794-003 ***************************************************************************** * 2.6 ASYNC/COMM BOARD CONFIGURATION * ***************************************************************************** ASYNC/COMM CLOCK BOARD JUMPER Pin 1-2 Pin 2-3 (000061) ---------------- ----------------- J702* COM2 (addr.2FX) COM1 (addr.3FX) J703* IRQ3 IRQ4 J704 Jumper enables 8th slot No jumper disables 8th slot J705** Jumper enables clock No jumper disables clock SHUNT U13 Pins 5-12, 6-11, 7-10, 8-9 connected = Serial RS232C operation Pins 1-16, 2-15, 3-14, 4-13 connected = 20-mA current loop operation ***************************************************************************** * 2.7 SERIAL/PARALLEL BOARD CONFIGURATION * ***************************************************************************** Serial/Parallel Board JUMPER FUNCTION (000570) --------------- -------------------------------- 1=OFF* Reserved 2=ON* Enable serial interface 2=OFF Disable serial interface 3=OFF 4=ON* Parallel printer interface LPT2 3=ON 4=ON Parallel printer interface LPT1 3=ON 3=OFF Parallel printer interface LPT3 3=OFF 4=OFF Disable parallel printer interface 5=OFF*6=ON* Serial interface COM2 5=ON 6=ON Serial interface COM1 *Default Serial/Parallel Board JUMPER FUNCTION (000990) --------------- -------------------------------- 1=OFF* Reserved 2=OFF Reserved 3=OFF*4=ON* Parallel printer interface LPT2 3=ON 4=ON Parallel printer interface LPT1 3=ON 4=OFF Parallel printer interface LPT3 3=OFF 4=OFF Disable parallel printer interface 5=OFF*6=ON* Serial interface COM2 5=ON 6=ON Serial interface COM1 5=OFF 6=OFF Disable serial interface *Default ==================================================================================================== 3. SPARE PART NUMBERS ** OBSOLETE ** ==================================================================================================== ***************************************************************************** * 3.1 HARD DRIVES - SPARES * ***************************************************************************** NOMENCLATURE ASSY#/MODEL# PART# ------------------------ -------------------- -------------- 10mb Half Height Drive HH612-2 (or) ST212 101437-001 20mb Half Height Drive HH725A 102777-001 30mb Full Height Drive BJ705-A 101664-001 ***************************************************************************** * 3.2 TAPE DRIVE - SPARES * ***************************************************************************** NOMENCLATURE ASSY#/MODEL# PART# ----------------------- -------------------- -------------- 10mb Tape Drive 110 101438-001 10mb Tape Cartridge DC1000 101488-001 ***************************************************************************** * 3.3 MEMORY - SPARES * ***************************************************************************** NOMENCLATURE PART # ------------------- --------------- 64x1 (150ns) DRAM 105152-001 64x4 (150ns) DRAM 106330-001 256x1(150ns) DRAM 105151-001 ***************************************************************************** * 3.4 CONTROLLER - SPARES * ***************************************************************************** NOMENCLATURE ASSY#/MODEL# PART# ----------------------- --------------- -------------- Hard Drive Controller WD1002SWX2 101672-001 WD1002WX2 WD1002HX4 Diskette/Printer 000043 101341-001 000181-011 ***************************************************************************** * 3.5 FLOPPY DRIVE - SPARES * ***************************************************************************** NOMENCLATURE ASSY#/MODEL# PART# ------------------------ --------------- -------------- 360kb Half Height Drive MF501B-352U 102928-001 (black bezel) 120329-001 (gray bezel ) * No 1.44mb or 1.2mb diskette drive available. Unit is 8bit system and these drives require a 16bit controller. ***************************************************************************** * 3.6 VIDEO - SPARES * ***************************************************************************** NOMENCLATURE ASSY#/MODEL# PART# ----------------------- --------------- -------------- Enh. Color Graphics * 000410 106373-001 Enh. Color Graphics * 000471 109196-001 VDU 000031 101340-001 000160 000345 000525 VGC * 000806 109253-001 001241 109360 * Enh. Color Graphic (ECG) and VGC require system ROM H or later.