Hello to all users of retro hardware!
When I browse posts here, I'm glad there are still freaks like me 😀
I just finished building my retro station.
I have some 8 bit machines like C64 or Atari, but since that kind of computers are off topic here, I will focus on PC machines.
All PCs are placed under the desk .
On top, there is 286 computer which is my slowest machine.
RAM: 4MB short SIMM's
Graphics: Trident TVGA9000I-2 512 KB ISA
Sound: Crystal CS4239-KQ
Network: SMC ISA Card (work perfect with packet driver and MTCP)
HDD: 2x Seagate 120MB
There is also ZOLTRIX ISA Modem just for better look 😀
Installed OS: DOS 6.22 + Windows 3.1 for Workgroups
First tower form left is 386 machine
RAM: 4MB short SIMM's
Graphics: Trident ISA 512KB TVGA8900C and Hercules. This machne is connected to VGA monitor, and amber Hercules monitor. There is switch on front of tower wchih allows to disable Hercules card.
Network: Some model of 3COM (work with packet driver and MTCP)
Sound: Some AZTEH model
HDD: Some Seagate Medalist 2,5GB model clipped to 512MB CHS by jumper
Installed OS: DOS 6.22 + Windows 3.11 for Workgroups
Second tower from left is Socket 7 Pentium 133 Machine:
CPU: Intel Pentium 133 on Socket 7
RAM: 64 MB long SIMM's EDO
Graphics: S3 Trio 2MB + 3Dfx Voodoo
Network: 3COM 3C905. For some reason i can't get it to work with packet driver in DOS.
Sound: Some ISA card with OPL-3 chip
HDD: Samsung 20GB plus Seagate Medalist 20 GB. There is only 2x 8GB available, because there is no modded BIOS for this MB. I have tried to modd BIOS manually, without succes.
Installed OS: DOS 6.22 + Windows 3.11 for Workgroups, Windows 95 OSR2, Windows 98 SE, Windows NT 4, Windows XP (yes, after heavy debloating, it works on such machine). GRUB4DOS is used to switch OS'es.
Third tower is Pentium II machine:
CPU: Pentium II 400
RAM: 256MB SDRAM
Graphics: RIVA TNT2 and Trident TVGA8000
Network: 3COM 3C905
Sound: Creative CT2960
HDD: Western Digital 80GB
Installed OS: DOS 6.22 + Windows 3.11 for Workgroups, Windows 98 SE. GRUB4DOS is used to switch OS'es.
There is bios reset switch, and switch for graphic card select. This MB has BIOS which don't allow to select between ISA and AGP graphic card. When BIOS detects ISA graphic, it is arbitrally selected, and there is no way to avoid this. I solved this problem by adding switch, which disables one of two EPROM's of Trident graphics card. This inhibits detection of ISA graphics.
I prefer Trident cards, because they allow to force Hercules and CGA mode on hardware level, wchih i very like.
All machines have 1,44 MB floppy and 286, 486 and Pentium II machines also have 5,5 '' floppy.
All machines have CD drives (mainly LG recorders).
I made sound selector, based on AVR chip and low signal relay switches. Same device works as video switch for 8bit machines. The switch is connected to my stereo.
I haven't built it yet sound selector for PC's, machines are just daisy chained with Line out → Line in method.
All machines have improved PC speakers (Two-way speakers with woofer and tweeter).
VGA display can be selected by tree of mechanical and electronic KVM switches. Panasonic PanaSync SL75 CRT oraz LG Flatron L1717 can be selected. There is also analog TV for 8 bit machines. Atari and C64 can work with PC monitors via AVER external tuner.
Each PC machine have separate keyboard and mouse, except Pentium 133 and Pentium II machine which share same keyboard and mouse together by automatic KVM switch.