================================================ "EDWARD'S ORIGINAL CHEATSHEET" ================================================ Rev 1.13 09/09/13, Rev 1.14 7/2/22 MEMORY TYPES (Under Construction) DDR - PC2100,266MHz,PC2700=333MHz,400MHz DDR2 - 533MHz,667MHz,PC2-6400=800MHz DDR3 - 1333MHz PARTITION SIZE LIMITS FAT12 - Used by Floppy Disks. Partition size up to 32MB. FAT16 16 Bit Partition hence 64K Clusters or Allocation Units. Maximum clusters is actually 65525 not 65536 Maximum Partition Size DOS,Windows98,95,ME = 2GB Maximum Partition Size WindowsXP,2K,NT4 = 4GB Maximum Disk Size using FDISK DOS4-DOS6 = 4GB Size of allocation unit therefore depends on disk capacity. Allocation Unit Size | Maximum Partition Size .5 KB (512 Bytes) | 32 MB 1 KB (1024 Bytes) | 64 MB 2 KB (2048 Bytes) | 128 MB 4 KB (4096 Bytes) | 256 MB 8 KB (8192 Bytes) | 512 MB 16 KB (16384 Bytes) | 1 GB 32 KB (32768 Bytes) | 2 GB (Maximum DOS,WinME,Win95,Win98) 64 KB (65536 Bytes) | 4 GB (Maximum WinXP,Win2K,WinNT4) Note: When copying files from a small HDD to a large HDD there may actually not be enough space depending on cluster size and partly used clusters. Smaller partitions are more space efficient. FAT32 32 Bit FAT uses 28 Bit Cluster Number + 4 Reserved Bits Partition size up to 32GB under Windows XP (16KB Cluster Size) Partition size up to 2TB under Windows NT3.51 (32KB Cluster Size) Default Cluster Size 4KB for drives up to 8GB Clusters can not be larger than 64KB. A Volume must have at least 65527 Clusters Maximum possible number of clusters on a volume is 268,435,445. With maximum 32KB per cluster and space for the FAT the maximum disk size is about 8TB. Because 4 Bytes are used as cluster values some old programs and API's may not work. The Win98 16 Bit ScanDisdk Tool can handle maximum partitions 127.53GB Create FAT32 partitions using WinXP "Disk Management" utility. - DOS,WinNT4,95(Original) can not access FAT32 - WinXP,2K,98,95OSR2,ME support FAT32 - Win2K supports FAT32 only up to 32GB partition size - Some Motherboard BIOS does not support boot over 7.8GB Hard Disks unless it has updated BIOS INT13 Extensions to overcome the CHS (CylindersxHeadsxSectors) barrier NTFS For WindowsXP Volume Size | Default Cluster Size Up to 16TB | 4 KB 16TB-32TB | 8 KB 32TB-64TB | 16 KB 64TB-128TB | 32 KB 128TB-256TB | 64 KB UPPER MEMORY BLOCK (UMB) FFFF 1MB ------------------------------------------- | Normally Reserved | | | | 64K ROM BIOS Area | | | | | | F000 960K ------------------------------------------- |EMS 3.2 Page Frame | |System ROM or Shadow RAM on some | |machines | | | E000 896K ------------------------------------------- | | | | | | D7FF |-----------------------------------| | |Network Card | | D000 -------------------------------------- 128K Expansion ROM |Windows Translation Buffers (Note1)| Area |-----------------------------------| | C7FF-|Paradise 1 MB VGA Card (up to C7FF)| | | | | C000 768K ------------------------------------------- |Paradise 1 MB VGA Card | | | | | | | | | | | B000 ------------------------------------- 128K Video Graphic |Paradise 1 MB VGA Card | Buffer Area | | | | | | | | | A000 640K ------------------------------------------- Notes: 1) Windows Enhanced Mode allocates 2 x 4K Translation Buffers by default and another 4 x 4k buffers if running a network (total 24k). To prevent Windows looking in the C000-EFFF area for translation buffer space use EMMEXCLUDE=C000-EFFF. Windows then allocates buffers outside conventional memory. 2) Adapters using UMB should "sign in" with a ROM signature of "0xAA55" followed by the size of the memory area it will use. 3) To ensure Windows does not try to access RAM/ROM for memory management make sure you insert in SYSTEM.INI file [386Enh] section EMMEXCLUDE=adapteraddress, Ex. 16K block: EMMEXCLUDE=d800-dbff COMMONLY USED TERMS: Backfilling: Puts Expanded Memory into conventional and Upper Memory Block (640k-1MB) memory. Allows application programs to use UMB memory. Base Memory: 0K-640K. Often used by TSR's. Conventional Memory: Same as Base Memory. Expanded Memory: Memory accessed as page blocks rather than flat continuous memory. Blocks are switched in and out by the application as required. Extended Memory: Memory above 1 MB point. Can not be accessed directly by DOS. EMM: Expanded Memory Manager. Allows access to Expanded Memory for application programs such as Windows. High Memory Area: First 64K of extended memory as defined by XMS. Used by HIMEM.SYS. HIMEM.SYS: Extended Memory Manager to allow access to high memory in a controlled manner. XMS: Extended Memory Specification. Allows access to an additional 64K of RAM for DOS applications apart from the normal 640K. PENTIUM CPU CHIP MULTIPLIERS Internal CPU Speed Multiplier External (Bus) Speed 200 MHz 3.0x 66 MHz 166 MHz 2.5x 66 MHz 150 MHz 2.5x 60 MHz 133 MHz 2.0x 66 MHz 120 MHz 2.0x 60 MHz 100 MHz 1.5x 66 MHz 90 MHz 1.5x 60 MHz 75 MHz 1.5x 50 MHz NOTE: 1) 50 and 60 MHz Bus Speed usually requires use of 70 nS RAM 2) 66 MHz Bus Speed usually requires use of 60 nS RAM 3) Memory Modules with more than 24 Chips/module exeed the Design specifications and may cause unreliable operation. 80486 CPU DETAILS 80486DX-33 33MHz, 33MHz Clock. 5 Volt, No Heatsink or Fan Required 80486DX-50 50MHz, 50MHz Clock, 5 Volt, Heatsink and Fan Required 80486DX2-50 50MHZ, 25MHZ Clock, 5 Volt, No Heatsink or Fan Required 80486DX2-66 Overdrive, 66MHz, 33MHZ Clock, 5 Volt, Built in Heatsink - Direct plugin replacement for 80486DX-33 with doubling of speed. 80486DX2-66 66MHz, 33MHZ Clock 80486DX4-100 100MHz, 33MHz Clock, 3.3,3.45 Volt 80286/80386 I/O ADDRESS MAP HEX RANGE STANDARD DEVICE 000 - 01F DMA Controller 1 (8237 Chip) 020 - 03F Master Interrupt Controller 1 (8259 Chip) 040 - 05F Timer/Counter (8254 Chip) 060 - 06F Keyboard Controller (8042 Chip) 061 On board testing registers (some motherboards only) 070 - 07F Real Time Clock/Calendar and NMI Mask (070, Bit 7) 078 On board test stimulus register (some motherboards only) 080 - 09F DMA Page Register 0A0 - 0BF Slave Interrupt Controller 2 (8259 Chip) 0C0 - 0DF DMA Controller 2 (8237 Chip) 0F0 Clear the math coprocessor's busy signal 0F1 Reset math coprocessor 0F8 - 0FF Math coprocessor 1F0 - 1F8 Fixed Disk 200 - 207 Game I/O 278 - 27F Parallel Printer Port 2 (LPT2) 2E8 - 2EF Serial Port 4 (COM4) (Defacto Standard Address) 2F8 - 2FF Serial Port 2 (COM2) 300 - 31F Prototype Card 360 - 36F Reserved 378 - 37F Parallel Printer Port 1 (LPT1) 380 - 38F SDLC, Bisynchronous 2 3A0 - 3AF Bisynchronous 1 3B0 - 3BF Monochrome Display and Printer Adapter 3C0 - 3CF Reserved or EGA Adapter 3D0 - 3DF Colour Graphics Display Adapter 3E8 - 3EF Serial Port 3 (COM3) (Defacto Standard Address) 3F0 - 3F7 Floppy Disk Controller 3F8 - 3FF Serial Port 1 (COM1) Notes: I/O range 000 - 0FF are reserved for motherboard I/O. 100 - 1FF are available on the I/O channel. 80386 SYSTEM INTERRUPTS IRQ PRIORITY SOURCE DESTINATION PRIORITY --------------------------------------------------------------------- NMI Parity Error 80386 NMI Input NMI 0 Timer 0 output Master PIC Interrupt 0 0 1 Keyboard Controller Master PIC Interrupt 1 1 2 Interrupt from Slave PIC 2 Master PIC Interrupt 2 2 3 Serial Port 2 (COM2)(8 Bit Slot) Master PIC Interrupt 3 11 4 Serial Port 1 (COM1)(8 Bit Slot) Master PIC Interrupt 4 12 5 Parallel Port 2 (LPT2)(8 Bit Slot) Master PIC Interrupt 5 13 6 Floppy Drive (8 Bit Slot) Master PIC Interrupt 6 14 7 Parallel Port 1 (LPT1)(8 Bit Slot) Master PIC Interrupt 7 15 8 Real Time Clock/Calendar Slave PIC Interrupt 0 3 9 Redirected to IRQ 2 (8 Bit Slot) Slave PIC Interrupt 1 4 10 Reserved (16 Bit Slot) Slave PIC Interrupt 2 5 11 Reserved (16 Bit Slot) Slave PIC Interrupt 3 6 12 PS/2 Mouse on some systems Slave PIC Interrupt 4 7 13 Coprocessor Busy Signal NPXBSY Slave PIC Interrupt 5 8 14 Fixed Disk (16 Bit Slot) Slave PIC Interrupt 6 9 15 Reserved (16 Bit Slot) Slave PIC Interrupt 7 10 Notes: - IRQ 6 is normally used by Adaptec AHA-1742 EISA SCSI HDD/FDD controller card for FDD in Enhanced Mode. - IRQ 11 is normally used by Adaptec AHA-1542 ISA SCSI HDD/FDD controller card. 80386 DMA CHANNEL ASSIGNMENTS SLAVE DMA MASTER DMA CONTROLLER CONTROLLER (8 BIT TRANSFERS) (32 BIT TRANSFERS) DEVICE --------------------------------------------------------------------- 0 8 Bit Slot, DRQ 0 - Spare 1 8 Bit Slot, DRQ 1 - IBM SDLC 2 8 Bit Slot, DRQ 2 - Diskette Adapter 3 8 Bit Slot, DRQ 3 - Spare 4 Cascade for DMA controller 1. Slave DMA Cont input into master 5 16 Bit Slot, DRQ 5 - Spare 6 16 Bit Slot, DRQ 6 - Spare 7 16 Bit Slot, DRQ 7 - Spare Notes: 1) DMA Data Requests (DRQ) are prioritised: Highest DRQ 0,1,2,3,5,6,7 Lowest. 1) DMA 5 is normally used by Adaptec AHA-1542 SCSI HDD/FDD controller card. 2) DMA 2 is normally used by Adaptec AHA-1742 EISA SCSI HDD/FDD controller card for FDD in Enhanced Mode. 8088 I/O ADDRESS MAP HEX RANGE STANDARD DEVICE 000 - 00F DMA Controller (8237 Chip) 020 - 021 Interrupt Controller (8259 Chip) 040 - 043 Timer/Counter (8253 Chip) 060 - 063 PIA (8255 Chip) 080 - 083 DMA Page Registers 0AX NMI Mask Register 0CX Reserved 0EX Reserved 200 - 20F Game I/O 210 - 217 Expansion Unit 277 Clock (in some systems) 278 - 27F Reserved (printer in some systems) 2F0 - 2F7 Reserved 2F8 - 2FF Serial Port 2 (COM2) 300 - 31F Prototype Card 320 - 32F Fixed Disk 378 - 37F Parallel Printer 380 - 38F SDLC Communications 3A0 - 3AF Reserved 3B0 - 3BF Monochrome Display and Printer Adapter 3C0 - 3CF Reserved 3D0 - 3DF Colour Graphics Display Adapter 3E0 - 3E7 Reserved 3F0 - 3F7 Floppy Disk Controller 3F8 - 3FF Serial Port 1 (COM1) 8088 SYSTEM INTERRUPTS IRQ SOURCE ------------------------------------- NMI Parity Error 0 Timer 1 Keyboard 2 Reserved 3 Serial Port 2 (COM2), SDLC Communications 4 Serial Port 1 (COM1), SDLC Communications 5 Hard Disk 6 Floppy Drive 7 Parallel Printer Port TIMERS The 8254 timer chip provides 3 programmable counters/timers. Timer Channel 0 - System timer to interrupt controller Timer Channel 1 - Dynamic RAM refresh interrupt Timer Channel 2 - Speaker tone generator AMI BIOS CMOS RAM PARAMETERS MAP Notes: 1) Items marked "*" are AMI BIOS definitions. 2) No free space is available for any customer proprietary information. 00-0D - Real Time Clock Information 00 - Seconds 01 - Second Alarm 02 - Minutes 03 - Minute Alarm 04 - Hours 05 - Hour Alarm 06 - Day of Week 07 - Day of Month 08 - Month 09 - Year 0A - Status Register A 0B - Status Register B 0C - Status Register C 0D - Status Register D 0E - Diagnostic Status Byte 0F - Shutdown Status Byte 10 - Diskette Drive Type Byte (Drive A: and B:) *11 - System Boot Up Num Lock 12 - Fixed Disk Type Byte 13 - Typematic Rate Programming 14 - Equipment Byte 15 - Low Base Memory Byte 16 - High Byte Base Memory Byte 17 - Low Expansion Memory Byte 18 - High Expansion Memory Byte 19-2D - Reserved in original IBM system specification 19 - Disk C: Extended Byte 1A - Disk D: Extended Byte *1B-2C - User Defined Hard Disk Type 2D - Flopppy Drive Seek at Boot 2E-2F - 2-Byte CMOS Checksum 30 - Low Expansion Memory Byte 31 - High Expansion Memory Byte 32 - Date Current Byte 33 - Information Flags (set during power on) 34-3F - Reserved in original IBM system specification 34 - Password Checksum Function 35 - Video ROM Shadow 36 - Turbo Cache Function AMI BIOS DIAGNOSTIC (BEEPS) BEEPS MEANING -------------------------------------------------------------------- 1 DRAM Refresh not working 2 Parity circuit not working or parity status bitsnot cleared when parity is disabled. 3 First 64K memory test failure. Address line test A0->A15 failure. 4 System timer is not counting properly. 5 Processor register/flag test failure. 6 8042 Keyboard controller gate A20 error. 7 Virtual mode exception error encountered. 8 Display memory R/W test failure. 9 ROM BIOS checksum error. 8 BIT EXPANSION SLOT PINOUT PIN SIGNAL I/O PIN SIGNAL I/O PIN SIGNAL I/O ---------------- ---------------- ---------------- A1 /IOCHCK I A11 AEN O A21 SA10 I/O A2 SD7 I/O A12 SA19 I/O A22 SA 9 I/O A3 SD6 I/O A13 SA18 I/O A23 SA 8 I/O A4 SD5 I/O A14 SA17 I/O A24 SA 7 I/O A5 SD4 I/O A15 SA16 I/O A25 SA 6 I/O A6 SD3 I/O A16 SA15 I/O A26 SA 5 I/O A7 SD2 I/O A17 SA14 I/O A27 SA 4 I/O A8 SD1 I/O A18 SA13 I/O A28 SA 3 I/O A9 SD0 I/O A19 SA12 I/O A29 SA 2 I/O A10 IOCHRDY I A20 SA11 I/O A30 SA 1 I/O A31 SA 0 I/O PIN SIGNAL I/O PIN SIGNAL I/O PIN SIGNAL I/O ---------------- ---------------- ---------------- B1 GND - B11 /SMEMW O B21 IRQ 7 I B2 RSTDRV O B12 /SMEMR O B22 IRQ 6 I B3 +5V - B13 /IOW O B23 IRQ 5 I B4 IRQ 9 I B14 /IOR O B24 IRQ 4 I B5 -5V - B15 /DACK 3 O B25 IRQ 3 I B6 DRQ 2 I B16 DRQ 3 I B26 /DACK 2 O B7 -12V - B17 /DACK 1 O B27 TC O B8 /OWS I B18 DRQ 1 I B28 BUSALE O B9 +12V - B19 /MEMREF I/O B29 +5V - B10 GND - B20 SYSCLK O B30 OSC O B31 GND - 16 BIT EXPANSION SLOT PINOUT PIN SIGNAL I/O PIN SIGNAL I/O PIN SIGNAL I/O PIN SIGNAL I/O ---------------- ---------------- ---------------- ---------------- C1 SBHE I/O C11 SD 8 I/O D1 /MEMCS16 I D11 DRQ 5 I C2 LA 23 I/O C12 SD 9 I/O D2 /IOCS16 I D12 /DACK 6 O C3 LA 22 I/O C13 SD 10 I/O D3 IRQ 10 I D13 DRQ 6 I C4 LA 21 I/O C14 SD 11 I/O D4 IRQ 11 I D14 /DACK 7 O C5 LA 20 I/O C15 SD 12 I/O D5 IRQ 12 I D15 DRQ 7 I C6 LA 19 I/O C16 SD 13 I/O D6 IRQ 15 I D16 +5V - C7 LA 18 I/O C17 SD 14 I/O D7 IRQ 14 I D17 /MASTER I C8 LA 17 I/O C18 SD 15 I/O D8 /DACK 0 O D18 GND - C9 /MEMR O D9 DRQ 0 I C10 /MEMW O D10 /DACK 5 O CGA COLOUR GRAPHICS ADAPTER CARD/MONITOR Resolution: 320X200, 640X200 Horizontal Frequency: 15.750 KHz PIN | FUNCTION --------------------- 1 | Ground 2 | Ground 3 | Red 4 | Green 5 | Blue 6 | Intensity 7 | NC 8 | Horizontal Sync 9 | Vertical Sync MGA MONOCHOME GRAPHICS ADAPTER CARD/MONITOR Resolution: 720H X 348V Horizontal Frequency: 18.432 KHz PIN | FUNCTION --------------------- 1 | Ground 2 | Ground 3 | NC 4 | NC 5 | NC 6 | Intensity 7 | Video 8 | Horizontal Sync 9 | Vertical Sync VGA CARD/MONITOR SIGNAL PIN FUNCTIONS Some pins are used slightly differently by various VGA Card and Monitor manufacturers. Monochrome VGA monitors may use Green Video for the video signal and ignore Red and Blue Video. For monitors that give no picture because of "DDC Plug and Play" features try using only pins 1,2,3,6,7,8,10,11(maybe),13,14. PIN | FUNCTION -------------------------------------------------------------------- 1 | Red Video Signal 2 | Green Video Signal 3 | Blue Video Signal 4 | Unused / Monitor ID Bit 2 5 | Unused / Ground 6 | Red Return (Ground) 7 | Green Return (Ground) 8 | Blue Return (Ground) 9 | Key (No Pin) 10 | Sync Return (Ground) / Digital Ground 11 | Digital Ground / Monitor ID Bit 0 12 | Unused / Monitor ID Bit 1 13 | Horizontal Sync 14 | Vertical Sync 15 | Unused VGA DISPLAY RESOLUTIONS AND MEMORY REQUIREMENTS Resolution | Colours | Memory Required 320 x 200| 256 | 256 KB 640 x 400| 256 | 256 KB 640 x 480| 16 | 256 KB 640 X 480| 256 | 512 KB 640 x 480| 16M | 1 MB 800 x 600| 16 | 256 KB 800 x 600| 256 | 512 KB 800 x 600| 64K | 1 MB 800 x 600| 16M | 2 MB 1024 x 768| 4 | 256 KB 1024 x 768| 16 | 512 KB 1024 x 768| 256 | 1 MB 1024 x 768| 64K | 2 MB 1024 x 768| 16M | 4 MB 1152 x 864| 256 | 1 MB 1152 x 864| 64K | 2 MB 1152 x 864| 16M | 4 MB 1280 x 1024| 16 | 1 MB 1280 x 1024| 256 | 2 MB 1280 x 1024| 64K | 4 MB 1600 x 1200| 256 | 2 MB 1600 x 1200| 64K | 4 MB INTERRUPT VECTORS INT 05H - Print Screen. Generated by ROM BIOS when SHIFT-PRTSC is pressed. INT 08H - Timer Interrupt. INT 17H - Print Character. Used by ROM BIOS to print characters. INT IBH - CONTRL-BREAK. Called by ROM BIOS when CTRL-BREAK is pressed. INT 21H - DOS Function Call. INT 23H - CTRL-BREAK Exit address vector. Issued by DOS if CTRL-BREAK or CTRL-C is pressed during certain function calls. INT 24H - DOS Fatal Error. DOS FILE ATTRIBUTES Each DOS file name has an associated file attribute byte. To change attributes use DOS command: attrib -r -s -h where -r=Read Only, -s=System, -h=Hidden Bit 0 - Read-Only Bit Bit 1 - Hidden Bit Bit 2 - System Bit Bit 3 - Volume Label Bit Bit 4 - Subdirectory Bit Bit 5 - Archive Bit Bit 6 - Unused Bit 7 - Unused SCSI Host adapter generally uses SCSI ID=7. If running two controllers on the same bus assign the other controller as ID=6. However only one computer can be powered up at any given time ! Standard SCSI: - Uses 50 pin connectors and ribbon cables - 8 Bits Wide - SCSI ID's 0-7 - SCSI ID priority is 7=highest <-> 0=lowest Wide SCSI: - Uses 68 pin high density Mini-SCSI connector - 16 Bits wide - SCSI ID's 0-15 - SCSI ID priority is 7=highest, then in descending order 6->0 and 15-> 8 SCSI MAXIMUM CABLE LENGTHS Total length of SCSI bus including internal and external cabling. Cable impedance should be between 90-110 Ohms. Use high quality twisted pair cable. - Synchronous SCSI, Single ended SCSI 6 meters - Fast SCSI, Fast Single ended SCSI 3 meters - Ultra SCSI - 4 Devices 3 metres - Ultra SCSI - 8 Devices 1.5 metres - Differential SCSI 25 meters SCSI SPEEDS - Asynchronous SCSI 5 MB/Sec - Synchronous SCSI 10 MB/Sec - Ultra Synchronous SCSI 20 MB/Sec - Wide Asynchronous SCSI 10 MB/Sec - Wide Synchronous SCSI 20 MB/Sec - Ultra Wide Synchronous SCSI 40 MB/Sec MODEMS Bell 103 - 300 bps American standard. No longer commonly used. Bell 212A - 1200 bps American standard. No longer commonly used. V17 - 14400 bps V21- 300bps. Originating Modem uses the low channel frequencies to transmit and high channel frequencies to receive. V22 - Permits synchronous and asynchronous transmission. V22bis - 2400 bps V23 - 1200/75 or 75/1200 bps. Used by Viatel. Dual rate system of 1200/75bps transmission for forward and backward channels. V27 - Protocol which now uses V27bis or V27ter protocols. Can operate in FDX or HDX mode. Uses differential 8 phase modulation with asynchronouse mode. V27ter - 4800 bps V29 - 9600 bps synchronous transmission. FDX or HDX mode. Uses amplitude and phase modulation. V32 - 9600 bps. Most modems use Trellis Code Modulation (TCM) on 19.2 kbps links. V32bis - 14400 bps V34 - 28 kbps VFast - 28 kbps Error Correction and Data Compression Standards: V42 - Error correction standard. Designed to perform asynchronous to synchronous conversion and also error detection and retransmission of corrupted data. Uses Cyclic Redundancy Check (CRC) for error detection. V42bis - Data compression standard. Five major functions are String Matching, Encoding, Transfer, Dictionary Updating and Mode Recovery. Provides a compression ratio of 3:1 or 4:1 using ASCII text. MNP 1 - Protocol using asynchronous byte-oriented half duplex to exchange data. No longer commonly used becuse of high overhead. MNP 2 - Protocol using full duplex asynchronous byte-oriented protocol for error detection. Faster than MNP 1 but still reduces modem speed. MNP 3 - Protocol which translates asynchronous data from terminal to synchronous format before transmission. Reduces overhead needed to detect and correct errors. MNP 4 - Enhancement to MNP 3 by checking quality of telephone line and changing the size of data packets accordingly to maximise throughput. MNP 5 - Protocol using MNP proprietary data compression techniques. Increases throughput up to twice the modem speed. Special AT Commands: ATI5 - Country Code - 22=USA, 40=Australia AT+FDLE=0K9 - Bitfax for Windows Fax Mode TAPE UNITS QIC (Quarter Inch Committee Industry Group) - Original QIC Standard: 3.5" Standard Cartridge, 307 foot tape length, .25" wide - Sony and Conner QIC Wide Standard: 3.5" Cartridge, 307 foot tape length, .315" wide - 3M and Hewlett-Packard Colorado Standard: 3.5" Cartridge, 425 foot tape length, .25" wide - 3M Travan Standard: Larger Cartridge Size, 750 foot tape length, .315" wide, 400MB (15GB Max future) Tapes - DC2120: 120MB, 307.5ft, 93.7m, 15000ftpi, 550 oersted - DC600A: 60MB, 620ft, 189.0m, 12500ftpi, 550 oersted. - DC6150: 150MB, 620ft, 189.0m, 12500ftpi, 550 oersted. For QIC-120 and QIC-150 Standard Drives - DC6320: 320MB, 620ft, 189.0m - DC6525: 525MB, 1020ft, 310.9m Dat Tapes - D90M: 90m, 295ft INFRA RED CONNECTOR Pin Assignments: 1=+5V, 2=N.C., 3=IR Receiver, 4=Ground, 5=IR Transmitter UNIVERSAL SERIAL BUS CONNECTOR USB Connector Pin Assignments. Top View: 9 7 5 3 1 USB Device 1 1=+5V,3=USB D0-,5=USB D0+,7=Grnd,8=Grnd 10 8 6 4 2 USB Device 2 2=+5V,4=USB D1-,6=USB D1+,8=Grnd,10=Grnd USB Motherboard Pin Assignments. Top View: Port #1 Port #2 +5V - Red 1 2 +5V - Red NC - Black (Dull) 3 4 NC - Black (Dull) USB+ - White 5 6 USB+ - White USB- - Green 7 8 USB- - Green Gnd - Black (Shiny) 9 10 Gnd - Black (Shiny) PS/2 MOUSE CONNECTOR IDC Connector Pin Assignments. Top View: 7 5 3 1 8 6 4 2 1=+5V, 2=NC, 3=NC, 4=NC, 5=MSDATA, 6=NC, 7=Ground, 8=MSCLK MICROSOFT INTELLIMOUSE CONNECTOR PIN ASSIGNMENTS RS232 Port is 1200 Baud, 7 Data bits, 1 Start Bit, 2 Stop Bits Pin RS232 Connector Signal PS/2 Connector Signal 1 No Connection Data 2 RXD No Connection 3 TXD Ground 4 DTR +5V 5 Ground Clock 6 DSR No Connection 7 RTS 8 No Connection 9 No Connection RJ-45 LAN CONNECTOR Pin Assignments. Front View. Lock Clip Downwards: Note: Pins 4,5,7,8 are unused 8 7 6 5 4 3 2 1 --------------- -CLIP- IRD+ = Input Receive Data + IRD- = Input Receive Data - OTD+ = Output Transmit Data + OTD- = Output Trnasmit Data - Straight Through Connection cable: Hub Adapter 1 IRD+ ----- 1 OTD+ 2 IRD- ----- 2 OTD- 3 OTD+ ----- 3 IRD+ 6 OTD- ----- 6 IRD- Crossover Connection Cable: Hub Hug 1 IRD+ ----- 3 OTD+ 2 IRD- ----- 6 OTD- 3 OTD+ ----- 1 IRD+ 6 OTD- ----- 2 IRD- SOUNDCARD RESOURCE SETTINGS If Win95 hangs during bootup but runs OK in "Safe Mode" use these typical resource settings that can be set "manually" for OPTI931 soundcard. Joystick x201-201 MPU401 x300-301 IRQ 9 Plugnplay Sound System x534-537 x380-38B x220-22F xE0C-E0F IRQ 5 DMA 1 DMA 6 Auxilary Device No Resources need to be set PAL AND NTSC SYSTEMS Australia - PAL B/G China - PAL D/K Indonesia - PAL I Thailand - PAL I ? - PAL M USA - NTSC Japan - NTSC VIDEO CAPTURE: SIF: 352x240 NTSC, 352x288 (PAL/SECAM) QSIF: 176x120 (NTSC), 176x144 (PAL/SECAM) TCP/IP - To find MAC Address using DOS or Linux: arp -a How to remove BIOS Password --------------------------- Apply with caution of course. From DOS run "debug" utility. Then enter: - o 70 2e - o 71 ff - q Restart the computer and enter BIOS using DEL or F1 or F8 or ESC according to your motherboard user manual. Password prompt will be gone. Ignore any checksum error. Edit BIOS as usual. Edward Jozis "The Digital Doctor" Courtesy of Micronica micronica.com.au