(Some of) Zac Schroff's Computer Systems

Connected to this port is an 8-way digital switch.: 0 : Psion Comms Link (for my Psion LZ64 handheld); 1 : Psion Comms Link (for my Psion Series 3c handheld); 2 : was modem; now open; 3 : was printer; now open; 4 : was Macintosh; now open; 5 : was TVI910+ terminal; now open; 6 : open; 7 : APC SmartUPS 2000 UPS

COM2

Port 02F8

IRQ 3

Connected to this port is a Logitech Lefty mouse

LPT1

Port 0378

IRQ 7

DMA 3

ECP mode enabled

open

Floppy controller

Port 03F0

IRQ 6

DMA 2

Unit 0 : 1440KB

Unit 1 : 1200KB

Unit 2 : open

Unit 3 : open

Primary IDE port

Port 01F0

IRQ 14

Unit 0 : WDC AC313600 IDE hard disc

Unit 1 : open

Secondary IDE port

Disabled

AGP Slot 1

Matrox Millennium G200 (primary display)

Display controller: 16MB SGRAM; ROM at C000; Port and memory addresses automatically assigned.; IRQ 9
Upgrade connector: I'm looking for the MPEG decoder for this card...

PCI Slot 2

Diamond Multimedia Systems Monster 3D (overlays primary display)

Frame buffer: 2MB EDO DRAM; Port and memory addresses automatically assigned
Texture mapper: 2MB EDO DRAM; Port and memory addresses automatically assigned

PCI Slot 3

DPT SmartCache IV PM2144UW caching SCSI host

SCSI host: Port addresses automatically assigned; ROM at C800; IRQ 15
Caching/RAID module PM3040: 64MB DRAM
SCSI bus: 0:0:* open; 0:1:0 Quantum Viking II 9GB hard disc; 0:2:0 Quantum Viking II 4.5GB hard disc; 0:3:0 Western Digital 9GB hard disc; 0:4:0 Quantum Viking II 4.5GB hard disc; 0:5:* open; 0:6:* open; 0:7:0 SCSI host; 0:8:* open; 0:9:* open; 0:A:* open; 0:B:* open; 0:C:* open; 0:D:* open; 0:E:* open; 0:F:* open

PCI Slot 4

Adaptec AHA2940AUW SCSI host

SCSI host: Port addresses automatically assigned; ROM at C900; IRQ 12
SCSI bus: 0:0:0 Pioner DVD-ROM DVD-303 DVD reader; 0:1:* open; 0:2:0 Plextor CD-R PX-R412C CD recorder; 0:3:* open; 0:4:0 Iomega 95MB ZIP drive; 0:5:0 Archive Python 28849-XXX DAT drive; 0:5:1 Archive Python 28849-XXX DAT autochanger; 0:6:0 MaxOptix Star T6-5200 5.2GB MO drive; 0:7:0 SCSI host; 0:8:* open; 0:9:* open; 0:A:* open; 0:B:* open; 0:C:* open; 0:D:* open; 0:E:* open; 0:F:* open

PCI Slot 5 (shared with an ISA slot)

SMC EtherPower PCI 100BTX ethernet: Port and memory addresses automatically assigned; IRQ 10

ISA Slot 6

Gravis UltraSound PnP

GUS / InterWave function: 8MB RAM installed; Port 0240; IRQ 15; Record DMA 6; Playback DMA 7; DRAM access DMA 7
Joystick port: Disabled
SoundBlaster emulation: Disabled
MIDI emulation: Disabled
IDE port: Disabled

ISA Slot 7

Hercules InColor (secondary display)

Display controller: 256KB RAM
Printer port: Disabled

ISA Slot 8

Creative Labs Sound Blaster AWE32 PnP

SoundBlaster function: Port 0220; IRQ 5; DMA 1 (8-bit mode); DMA 5 (16-bit mode); Creative Digital Signal Processor installed
AWE32 function: 8MB DRAM installed; Port 0620,0A20,0E20
Joystick port: Enabled; Port 0200
Yamaha WaveForce DB50XG MIDI daughtercard: Port 0330

586 secondary (Windows95)

Embedded Slot 0

Tyan Trinity 100 AT S1590S motherboard

AMD K6-2(tm) 400MHz processor

256MB RAM in 2 8ns SDRAM 16M*64b SIMMs

1MB Pipeline burst 5ns SRAM soldered to the board (I don't like that)

On-board I/O functions

COM1: Port 03F8; IRQ 4; The mouse is connected to this port.
COM2: Port 02F8; IRQ 3; This port is currently open.
LPT1: Disabled
Floppy controller: Port 03F0; IRQ 6; DMA 2; Unit 0 : 1440KB; Unit 1 : open; Unit 2 : open; Unit 3 : open
Primary IDE port: Port 01F0; IRQ 14; Unit 0 : Western Digital 12GB IDE hard disc; Unit 1 : Western Digital 5.9GB IDE hard disc
Secondary IDE port: Port 0170; IRQ 15; Unit 0 : open; Unit 1 : Toshiba 24X CD-ROM drive

AGP Slot 1

3DFX Voodoo 3000 AGP: 16MB SDRAM; Port and RAM addresses automatically assigned

PCI Slot 2

open

PCI Slot 3

Creative Labs Sound Blaster Live: Port and RAM addresses automatically assigned

PCI Slot 4

3Com 3C905 100BTX ethernet: Port and RAM addresses automatically assigned

PCI Slot 5 (shared with an ISA slot)

Adaptec AHA2940AUW SCSI host

SCSI host: Port addresses automatically assigned; ROM at C900; IRQ 12
SCSI bus: 0:0:* open; 0:1:* open; 0:2:* open; 0:3:* open; 0:4:* open; 0:5:* open; 0:6:* open; 0:7:0 SCSI host; 0:8:* open; 0:9:* open; 0:A:* open; 0:B:* open; 0:C:* open; 0:D:* open; 0:E:* open; 0:F:* open

ISA Slot 6

open

ISA Slot 7

open

ISA Slot 8

Gravis UltraSound PnP

GUS / InterWave function: 8MB RAM installed; Port 0240; IRQ 15; Record DMA 6; Playback DMA 7; DRAM access DMA 7
Joystick port: Disabled
SoundBlaster emulation: Disabled
MIDI emulation: Disabled
IDE port: Disabled

586 server (NetWare)

Embedded Slot 0

Tyan Tomcat IV D S1564D motherboard

Two Intel Pentium-MMX(tm) 233MHz processors

128MB DRAM in 2 16M*36b 60ns FastPage SIMMs

512KB Pipeline burst 10ns SRAM soldered to the board (I don't like that)

On-board I/O functions

COM1: Port 03F8; IRQ 4; Connected to this port is an APC MasterSwitch Plus
COM2: Port 02F8; IRQ 3; open
LPT1: Port 0378; IRQ 7; DMA 3; ECP mode enabled; open
Floppy controller: Port 03F0; IRQ 6; DMA 2; Unit 0 : 1440KB; Unit 1 : open; Unit 2 : open; Unit 3 : open
Primary IDE port: Disabled
Secondary IDE port: Disabled

PCI Slot 1

DPT SmartRAID IV PM3334UW caching SCSI host

SCSI host

Port addresses automatically assigned

ROM at C800

IRQ 14

64MB DRAM

Raid functions

RAID group 0: Devices 0:1:0,0:2:0,1:0:0,1:2:0,1:4:0
RAID group 1: Devices 2:1:0,2:2:0,2:4:0
Hotspares: Devices 2:0:0,2:9:0

SCSI bus 0

0:0:* open

0:1:0 Micropolis 8.6GB hard disc

0:2:0 Seagate 8.6GB hard disc

0:3:* open

0:4:* open

0:5:* open

0:6:* open

0:7:0 SCSI host

0:8:* open

0:9:* open

0:A:* open

0:B:* open

0:C:* open

0:D:* open

0:E:* open

0:F:* open

SCSI bus 1

1:0:0 Western Digital 8.6GB hard disc

1:1:* open

1:2:0 Seagate 8.6GB hard disc

1:3:* open

1:4:0 Micropolis 8.6GB hard disc

1:5:* open

1:6:* open

1:7:0 SCSI host

1:8:* open

1:9:* open

1:A:* open

1:B:* open

1:C:* open

1:D:* open

1:E:* open

1:F:* open

SCSI bus 2

2:0:0 Seagate 8.6GB hard disc

2:1:0 Micropolis 4.3GB hard disc

2:2:0 Seagate 4.3GB hard disc

2:3:* open

2:4:0 Seagate 4.3GB hard disc

2:5:* open

2:6:* open

2:7:0 SCSI host

2:8:0 Micropolis 8.6GB hard disc

2:9:* open

2:A:* open

2:B:* open

2:C:* open

2:D:* open

2:E:* open

2:F:* open

PCI Slot 2

Intel Pro/100 Intelligent Server Adapter 100BTX ethernet

Port and memory addresses automatically assigned

IRQ 12

PCI Slot 3

Adaptec AHA3940AU SCSI host

SCSI host: Port addresses automatically assigned; ROM at CC00; IRQ 11,10
SCSI bus 0: 0:0:* open; 0:1:* Plextor CD-ROM drive; 0:2:* Plextor CD-ROM drive; 0:3:0 Nakamichi CD-ROM changer; 0:3:1 Nakamichi CD-ROM changer; 0:3:2 Nakamichi CD-ROM changer; 0:3:3 Nakamichi CD-ROM changer; 0:3:4 Nakamichi CD-ROM changer; 0:4:* open; 0:5:* open; 0:6:* open; 0:7:0 SCSI host
SCSI bus 1: 1:0:* open; 1:1:* open; 1:2:* open; 1:3:* open; 1:4:* open; 1:5:* open; 1:6:0 Archive Python 28849-XXX DAT drive; 1:6:1 Archive Python 28849-XXX DAT autochanger; 1:7:0 SCSI host

PCI Slot 4 (shared with an ISA slot)

open

ISA Slot 5

open

ISA Slot 6

open

ISA Slot 7

open

ISA Slot 8

Generic Cirrus Logic VGA adapter: 256KB RAM; IRQ 9

486 server (Linux)

Embedded Slot 0

Tyan Computers EISA+VLB motherboard: AMI BIOS with level F keyboard controller; AMD 5x86(tm)-133 (overclocked to 160MHz); 256MB DRAM in 16 16M*9b 60ns FastPage SIMMs; 256KB SRAM in 8 32K*8b 20ns DIPs plus 2 32K*8b 20ns tag

EISA Slot 1

Adaptec 2742AT EISA twinchannel busmastering SCSI host

Floppy controller: Port 3F0; IRQ 6; DMA 2; Unit 0 : 1440KB; Unit 1 : open; Unit 2 : open; Unit 3 : open
SCSI host functions: Busmastering enabled; Optima mode enabled; IRQ 11; ROM enabled at CC00
Primary channel SCSI host: 0:0:* Seagate ST36530N 6GB hard disc; 0:1:* open; 0:2:0 Maxtor LXT-200S 192MB hard disc; 0:3:* open; 0:4:* open; 0:5:* open; 0:6:* open; 0:7:0 SCSI host
Secondary channel SCSI host: 1:0:* open; 1:1:* open; 1:2:* open; 1:3:* open; 1:4:* open; 1:5:* open; 1:6:* open; 1:7:0 SCSI host

EISA Slot 2

Generic Multi I/O card

COMA is COM1: Port 03F8; IRQ 4; Connected to an APC MasterSwitch Plus
COMB is COM2: Port 02F8; IRQ 3; Connected to the mouse
LPTA is LPT1 (IEEE 1284): Port 0378; IRQ 7; DMA 3; Currently unused.
Floppy controller: Disabled
IDE host: Disabled

EISA Slot 3

open

EISA Slot 4

3Com 3C579 EISA busmastering 100BTX ethernet: IRQ 12; ROM disabled

EISA Slot 5

Adaptec 2742AT EISA twinchannel busmastering SCSI host

Floppy controller: Disabled
SCSI host functions: Busmastering enabled; Optima mode enabled; IRQ 11; ROM enabled at CC00
Primary channel SCSI host: 0:0:* open; 0:1:* open; 0:2:* open; 0:3:* open; 0:4:* open; 0:5:* open; 0:6:* Plextor CD-ROM PX-12CS CD-ROM drive; 0:7:0 SCSI host
Secondary channel SCSI host: 1:0:* open; 1:1:* open; 1:2:* open; 1:3:* open; 1:4:* open; 1:5:* open; 1:6:* open; 1:7:0 SCSI host

EISA Slot 6

SMC 8000 series 10BT ethernet: Port 0310; RAM 000DC000-000DFFFF; ROM mounted (i27128) but disabled; IRQ 5

EISA/VL Slot 7

TekRAM DC680 caching IDE host

Caching functions: 16MB DRAM; Spanning enabled 0:0,0:1; Spanning enabled 1:0,1:1
IDE port: Port 01F0; IRQ 14
IDE channel 0: Unit 0 : Quantum 524MB drive; Unit 1 : Quantum 524MB drive
IDE channel 1: Unit 0 : Micropolis 4555A 4769MB hard disc; Unit 1 : Western Digital WDC AC31100H 3019MB hard disc

EISA/VL Slot 8

ATI Graphics Pro Turbo VL: 4MB VRAM; IRQ 9

Primary portable computer

System unit

Toshiba 420CDT portable computer system unit

Intel Pentium 100

24MB EDO 3v DRAM (8MB onboard, 16MB in expansion slot)

COM1: Port 3F8; IRQ 4
COM2: Port 2F8; IRQ 3; Connected to IrDA port
LPT1: Port 378; IRQ 7
TrackPoint pointing device

Chips&Tech 65550 display controller

11.3 inch active matrix colour display

Internal resolution up to 800*600 at 16777216 colours

External resolution up to 1024*768 at 65536 colours

External resolution up to 1200*1024 at 256 colours

IDE connector (internal standard TidBit class)

6GB IDE hard disc

SelectBay slot (Toshiba proprietary)

1440KB Floppy disc drive

6x CD-ROM drive

1.2GB secondary hard disc

Floppy drive port (Toshiba proprietary)

open unless floppy needed with CDROM or second HDD mounted

PCMCIA slot 0

Xircom CE3-100BTX ethernet

PCMCIA slot 1

US Robotics Sportster 28k8 modem

8086 portable computer

System unit

Toshiba T1100+: NEC V30 (I upgraded it from the Intel 8086); 640KB DRAM; 2 720KB floppy drives (two of these!)

COM1: Port 3F8; IRQ 4
LPT1: Port 378; IRQ 7; Bidirectional enabled
Toshiba CGA: 16KB DRAM; 640*200 passive matrix dual-scan black and white screen

Primary handheld computer

Embedded Slot M

Psion Series 3MX 2MB Backlit (UK): NEC V30 at about 28MHz; 2MB SRAM on board

Psion SSD Slot A

8MB Flash card

Psion SSD Slot B

4MB Flash card

Psion Proprietary Slot C

Normally open, used for Comms link when needed

Fallback handheld computer

Embedded Slot A

Psion Organiser II LZ64 (English): Hitachi HD6303X at about 1MHz; 64KB DRAM

Psion O2 SSD Slot B

256KB battery backed SRAM module

Psion O2 SSD Slot C

32KB battery backed SRAM module

Psion O2 Expansion Slot D

Normally open, used for Comms link or Psion Printer II when needed

I also have various other systems, such as a fairly complete C=64 system, a fairly complete Atari 800XL system, a ColecoVision (with Atari 2600 adapter module, among other things), and many other things that would, put together, make this page prohibitively large (more so than it already is).

Other fun stuff

Power filtration

APC 800RT: One of my prouder moments came when a friend of mine found this thing in pieces at a HamFest and decided to buy it and several other UPS units. I chose this one out of the lot, because it had a very clean waveform and seemed to be a well-built unit. Boy was I right. After a little tweaking, some new batteries (APC has confirmed the batteries in it to be larger than the originals), and some minor additions (a new case, some patchwork to the 12 volt systems to allow a fan to be added, &c), this thing powered up and ran flawlessly. It has since saved me hours of work (the power around here stinks). I'd like to be able to afford to upgrade to a really good one from APC, but I get about an hour runtime out of this one with my current configuration and to do that with one of their current line, I would need one of APC's Matrix UPS line... [This unit is now being used by one of my friends, since I upgraded to a Smart-UPS 2000.]
APC SmartUPS 2000: Another UPS, this time higher capacity, but still good run time. Also a Smart-UPS from APC, so this one offers better monitoring and shutdown options.
APC SmartUPS 1000XL: Another UPS, more modern than the above ones, this can even communicate with the MasterSwitch Plus to have several systems start up and shut down in a sensible manner, rather than everything having to go down at once.
APC MasterSwitch Plus (or is it Share-UPS Plus, or Galactica?): This gadget, attached to the SmartUPS 1000XL, allows me to shut down less critical stuff first during a blackout, keeping more critical equipment up as long as the battery on the UPS allows, and then restarting things in an order which allows most reliable startups. Really cool device when you have multiple servers and other stuff attached to a single UPS!

Printers

DECLaser 5100: Another of the great things I have is a Digital DECLaser 5100 printer. It's an 8PPM 600DPI laser printer with PostScript level 2 and gobs of fonts in ROM (and I have it running 66MB of RAM right now, simply because it seemed like a good thing to do at the time). Great printer, and the price was quite reasonable. My only complaints are that the hard disc port is not SCSI, so I have to buy the stupid disc from Digital instead of using an old, say 100MB, SCSI drive on it and that the diffusion fill routine has little knots in its results.

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This page maintained by Zac Schroff.