bluejay Posted February 12, 2021 Share Posted February 12, 2021 The IBM PC has to be THE most customized computer architectures ever made, and I think nearly all of us has some kind of "old school" MS-DOS computer setup. Show us your rigs! Don't forget to list your machine's specs, and perhaps how you acquired it and what parts you have installed on it. I have 5 DOS computers. Two of them are Compaq Portable IIs, two are Compaq LTE 5250s, and one is a Compaq LTE 5280. A lot of them are broken in some way, but I use all 3 of them that work, especially one of my 5250s. I don't have many pictures, and none at all of my LTEs. I'll take proper ones as soon as possible. Here's a good pic of my Compaq Portable II. It has a 6/8 mhz Intel 80286, 640k RAM, CGA/MDA combo card with 9" monochrome green phosphor CRT. Sound Blaster Vibra 16 sound. It used to have a 20 meg MFM hard drive but it was dead, so I installed a CF-IDE adapter. It has the OEM 360k 5.25" floppy drive. This machine only has 4 ISA slots, and only 2 of which are 16 bit. This seriously limits the expandability of this machine. I don't think I ever took a picture of my Compaq LTEs, but they all look just like this. I use one of them as my main DOS machine. That one has a 120mhz Pentium, 48mb RAM (comes with 16mb standard but it has a RAM upgrade thingy installed), SVGA that uses some kind of Cirrus Logic chipset, internal ESS Audiodrive es1688, 800x600 Active Matrix TFT display, a multibay that can house either my 1.44mb floppy drive or my CD-ROM drive. It came with a 1.3gb HDD which still works, but I did replace it with a SD-IDE adapter. I still use that HDD though, since it's easy to pull out and change between the SD-IDE and HDD. My other two machines are pretty much identical. except they have 16mb RAM. One has a bigger LCD. One has a 810mb HDD while the other has none. Well, there you are. Those are my DOS setups. What's yours? 5 Quote Link to comment Share on other sites More sharing options...
DragonGrafx-16 Posted February 12, 2021 Share Posted February 12, 2021 (edited) 200Mhz AMD K6 32MB RAM Virge DX 4MB video card (PCI) 2GB HDD 52x CDRW 3.5" 1.44MB Floppy A drive 5.25" 1.2MB Floppy B drive Sound Blaster Pro 2 (ISA) for sound CH Products Gamecard 3 dual gameport card (ISA) MS-DOS 6.22 and Windows 3.1 (does not boot into Windows uses command to start it) Much of the hardware (everything but the motherboard, CPU, video card and RAM) was from my Gateway 2000 but it's motherboard stopped working so I bought this tower for $20 off of someone on the VCF forums. Edited February 12, 2021 by DragonGrafx-16 2 Quote Link to comment Share on other sites More sharing options...
IntelliMission Posted February 12, 2021 Share Posted February 12, 2021 Mine is DOSBox, but I wish I could recover my dad's Pentium 133 from 1996-1998. From 1985 to 1998, He threw away or gave to my uncle as a gift a ZX Spectrum, an Amstrad CPC 6128, an 8086, a 386 and a Pentium 133. Some of these machines had malfunctioning parts (such as the Amstrad disk drive), but still... I would be trying to fix them like crazy today if I had them. ? 2 Quote Link to comment Share on other sites More sharing options...
zzip Posted February 12, 2021 Share Posted February 12, 2021 The one I still have is a 5x86-133 in a generic PC case. S3-805 chipset Soundblaster 16 ASP + Gravis Ultrasound Ace for sound Goldstar 4X CD-Rom Promise VLB I/O card I recently put an SD-IDE in it because the original drive is rather noisy and might be on its way out., and re-installed MS-DOS 6.23 and Windows 3.1 2 Quote Link to comment Share on other sites More sharing options...
The Usotsuki Posted February 12, 2021 Share Posted February 12, 2021 Pentium/133 286/10 2 Quote Link to comment Share on other sites More sharing options...
fimbulvetr Posted February 13, 2021 Share Posted February 13, 2021 I have a whole shelf of old dos computers in various stages of repair, but the two I currently have set up are a 486 DX2-66 and an IBM 5155 XT luggable. The 486 has VLB video and IO and a Windows Sound System audio card. I just upgraded the ram on the XT motherboard to the whopping max of 640k last night. Sure takes a lot longer to boot up as it counts up to 640k compared to the original 256k. I have an RTC card on order so I don’t have to type in the date and time every time I turn it on. 5 Quote Link to comment Share on other sites More sharing options...
fimbulvetr Posted February 13, 2021 Share Posted February 13, 2021 I also need to figure out how to adjust the vertical height on the built in monitor in the 5155, as it is a bit squashed. All the adjustment pots are inside on the monitor circuit board. 2 Quote Link to comment Share on other sites More sharing options...
bluejay Posted February 13, 2021 Author Share Posted February 13, 2021 Wow, nice setups, everyone! Love the IBM PS/2s and 5155s, and all the custom builds, of course. I dream of building a 486 machine someday. Parts seem ridiculously expensive though, especially considering they're all generic PC parts. 1 Quote Link to comment Share on other sites More sharing options...
youxia Posted February 13, 2021 Share Posted February 13, 2021 I like old PCs, but had to compromise due to lack of space and funds, so only have a non-period Pentium 4 + a few VGA monitors, with dual boot of 98SE and XP. This setup covers all the bases: from very early DOS (when slowed down) to Win games from the start of the 00s. If I could get one classic PC it'd be probably something from the beginning (1982-84), seeing as some games from this period crash on my machine. 1 Quote Link to comment Share on other sites More sharing options...
Keatah Posted February 13, 2021 Share Posted February 13, 2021 As soon as the Pentium II came out I build a system on the AL440LX Intel mobo. It was a decent system, and I gradually evolved/upgraded it to one built around the Abit BX-6 R2. This is the system as it stands right now. Spoiler Currently the system specification is: OS Windows 7 Ultimate (tested) Windows XP Professional SP3 (installed) Windows 98se (previously installed) Windows 95 (previously installed) Windows 3.1 (pending) Dos 6.22 (pending) Mainboard Abit BX6-R2 motherboard, Slot-1, Intel BX440 CPU Intel Pentium III Tualitin @ 1,403MHz, 100MHz FSB, 256KB full-speed L2 cache PowerLeap socket 370 - slot-1 slocket adapter, with external power supply source Memory 1 GB RAM (256MB x 4 SDRAM) non-ECC, PC-100/133 w/spd Chipset Intel i440BX Winbond W83977EF-AW Super I/O Expansion slots 2 ISA 5 PCI 1 AGP 1x/2x (3.3v) Internal Onboard Connectors 2 x IDE ATA UDMA-33 connectors 1 5.25" & 3.5" FDD connector 4 x 168 pin DIMM connectors (data buffered) SMI and instrument bus Reset Power HDD indicator Speaker Keylock BIOS reset Wake-on LAN header SB-LINK header IR-1 IrDA TX/RX header FAN x 3 RT2 thermistor ATX power input connector External Onboard Connectors 2 x serial 1650 UART 1 x parallel EPP ECP SPP 2 x USB 1.0 PS/2 keyboard PS/2 mouse BIOS Award Modular BIOS v4.51PG 1984-1999 PnP ACPI DMI 4/26/2000 i440BX-W977-2A69KA1JC-QR (last version produced) Graphics Gainward GeForce 4 4600ti ultra PowerPack Golden Sample Ultra/750 XP Dual DVI, Dual VGA, Video-in & Video-out, 128MB DDR, AGP 1x, 2x, 4x 1996-2002 NVIDIA 4.25.00.28.00 GFORCE 4600 TI 128.0MB Hard disk drives 3 x Western Digital 120GB HDD (IDE PATA) Floppy drive Sony 3.5 Floppy Optical drives CD-ROM PlexWriter 24/10/40A drive (IDE PATA) DVD52X Lite-On DVD reader SOHD 16P9SV (IDE PATA) Auxiliary drive Zip-100 Parallel port model Modem Supra Express 56.6k v.90 non-win-modem (ISA) Sound SoundBlaster AWE64 Gold CT4390 + memory module CT1930 (ISA) SoundBlaster Live! CT4760 w/breakout box (PCI) Additional expansion ports Belkin F5U220 5-port USB 2.0 card NEC chipset (PCI) Generic VT6306 based 3-port IEEE-1394 FireWire card (PCI) Internal 1394 - ATA Bridgeboard FW2IDE02D (Oxford FW911plus) Ethernet Network NIC 3COM Fast EtherLink XL 3C905b-TX 10/100 Power Supply Antec True 550 Fans 4 x dual ball-bearing Vantec & no-name generic Fan speed controllers 3 x Cnps FAN MATE 1 x 3-speed controller and generic fan alarm Front Panel Ports 1 Stereo line-in 1 Stereo line-out 1 Microphone in 1 CD audio headset out 2 x USB 2.0 1 x IEEE-1394 FireWire 1 x Compact Flash, SD, and multi-card reader Additional audio expansion ports 2 x optical SPDIF In/Out RCA optical SPDIF In/Out RCA Aux-In RCA Aux-Out MIDI In/Out 1/4" Headphone Jack 4.1 analog surround out 1/4" line in jack 3 x 1/8" line in 6 Channel AC-3 SPDIF out 2 x RCA line out Gameports Standard analog PC gameports onboard the SoundBlaster cards 2 x DA-15 connectors Multiplexed 4 x DA-15 connector box Case Generic beige-white in-winn desktop case Keyboard Lenovo standard usb keyboard KU-0225 41A5100 Mouse Micro Innovations Optical 3 button & scroll wheel Monitor 1 Samsung Syncmaster T260HD 1920x1200 16:10 LCD VGA + DVI Monitor 2 Chuntex Electronics VL-950 4:3 CRT 1600x1200 VGA Sometime in the future I would like to put in a regular BX6, no overclocking tricks and one extra ISA slot, 1 less PCI slot. I plan on dumping the SB-live card as I rarely ever used its features. I also plan on redoing the drive arrangements and use a RIO multi-drive switcher. I also want a 5.25" floppy drive in there, too. And perhaps a new case to make it easier to work on. Last time I changed anything it was 2007-2008. It is one of two legacy computers. The other one, 486, I'll detail later. Quote Link to comment Share on other sites More sharing options...
IntelliMission Posted February 13, 2021 Share Posted February 13, 2021 (edited) I'm curious about what happens when you install MS-DOS or Windows 95 in a 2005 (or even 2021) PC. What's the point where it's not possible anymore (maybe they require an x86 processor)? Do games run too fast? Do these operating system only recognize a fraction of the actual RAM, hard disk space or CPU speed of these machines? Edited February 13, 2021 by IntelliMission 1 Quote Link to comment Share on other sites More sharing options...
Krebizfan Posted February 13, 2021 Share Posted February 13, 2021 2005 PC should work. MS-DOS 6.22 HIMEM would handle up to 64 MB which is enough to some simple testing. More than a single core was uncommon back then so DOS has no real problem. Win98 was the typical gaming OS back then; Win95 can have problems booting with more than 256 MB installed. 2021 Intel or AMD processors can still boot in 32-bit mode so MS-DOS or Win9x will just use a single core and only a small amount of memory. Unless one finds the proper patches, the smallest DDR4 RAM stick available will have more memory than Win9x can boot with. It takes a rare computer these days to have backward support that MS-DOS or Win9x can boot from. Hard drive support is limited to 2 GB FAT16 or FAT32. Freedos does have the ability to boot off CD or USB on every recent system I have tried it with if the system can boot off CD or USB. Should boot off floppy drive too if one could find a system that still has a floppy controller. Freedos has a working NTFS driver so most hard drives can be read. Some of the hard disk testing and copying tools use Freedos for operation. Patches for CPU speed can be needed though last patches for Win9x were released when 3+ GHz Pentium 4s were available. Lots of applications may need CPU speed patches. Games will run too fast but most of the modern computers make it easy to slow down the CPU in the BIOS. Seems rather silly to run a multi-core multi-GHz reduced to equivalent to a 800 MHz Pentium 3 (which is about the slowest the configurations I have tried can be forced to run) but it still can be done. 2 Quote Link to comment Share on other sites More sharing options...
Keatah Posted February 13, 2021 Share Posted February 13, 2021 Minus speed issues, the PIII rig I described above does MS-DOS beautifully. With all the incumbent legacy support for ports. It's how that e-waste earns its keep. I've not tried asking anything more than 32MB ram out of it, but I'm sure it will work with 64mb or maybe more. By turning off caches I can get down to Pentium and fast 486 levels. Quote Link to comment Share on other sites More sharing options...
ClausB Posted February 13, 2021 Share Posted February 13, 2021 (edited) In storage is my work computer from the 90s. A 486 I think, with a huge sandwich of Matrox display boards. 640x480, 256 color IIRC. We wrote our own WIMP application using PharLap DOS Extender and Matrox libs for our laser-scanning microscope. Haven't powered it up in nearly 20 years. Edited February 13, 2021 by ClausB On second thought it is an early Pentium with the divide bug. 1 Quote Link to comment Share on other sites More sharing options...
Tanooki Posted February 14, 2021 Share Posted February 14, 2021 *Sigh* I'd love to have my old p100 computer once more, 200mmx at a max as some form of laptop due to space concerns, but I'd be picky, want a good TFT not passive and a USB port I could run a powered hub off of. I'd even take a double clocking of the old PC I had before those to a 486dx2-66(had a 33.) There are things I really do like from the 16bit windows era which has select few stuck in purgatory on Win95/3.xx era stuff modern OS's can't handle. Currently I'm running DOSBox (ECE) with a Win3.XX install within so I can fire up Sim Tower and Civilization for Windows which is a real pleasure at least. I recall back in the day when I hit that p100 Wing Commander started showing cracks, had to get MOSLO which stunningly still is made today by the same dude which is still for sale like what 30 years later now. 1 Quote Link to comment Share on other sites More sharing options...
Reaperman Posted February 14, 2021 Share Posted February 14, 2021 (edited) At the moment, my thread's poking up close to this one, so everybody's seen mine--but that won't be the case years from now when this thread's 50 pages long, so here it is again. It's a PIII running MSDOS 7.10. I think my favorite part about it is that Dell-branded Trinitron. Given how nuts people go over PVMs, it's odd these have exactly zero buzz. I call her 'Beige4Daze' 1 hour ago, Tanooki said: had to get MOSLO which stunningly still is made today by the same dude which is still for sale like what 30 years later now. Coincidently, I bought my moslo deluxe just today for the 'mode 3' that's supposed to work wonders on PIII's. It also has a few nifty features like providing 5 'pc generation' presets, and being able to disable L1 cache. Unfortunately, most, if not all, of the 'deluxe' features don't play well with emm386 or protected modes, which seriously limits their usefulness for 90's titles. Should still work a treat for the oldiest of oldies, though. Edited February 14, 2021 by Reaperman 2 Quote Link to comment Share on other sites More sharing options...
Turbo-Torch Posted February 14, 2021 Share Posted February 14, 2021 I have a 1988 IBM P70 that uses DOS 6.22. This unit can run in two different modes. It's IBM's highest spec P70 with the 20mhz 386, math coprocessor, 8mb of ram and 120mb hard drive. It uses a VGA red gas plasma display, 1.44mb floppy and full size keyboard. These were crazy specs for 1988, and more impressive is that it's a portable the size of a large briefcase. It also has a VGA port on the back so you can use a normal color VGA monitor. It has a Kingston AOX MicroMaster upgrade board using one Micro Channel slot. That brings it up to a 486 with 64mb of ram. That AOX board has also been upgraded with a Kingston 5x86 133mhz Turbo Chip. At startup I can press O to boot to its native 386 configuration or let it boot to the AOX 5x86 configuration. I also have another twin of this, but with a 486 75mhz CPU. 2 Quote Link to comment Share on other sites More sharing options...
youxia Posted February 14, 2021 Share Posted February 14, 2021 I've tried a bunch of the slow down programs when I got that P4 (2.4Ghz) recently, Mo'slo included, but I can't say I was too impressed. They really struggled with really old (early Eighties) soft and also some Nineties stuff too. Then somebody pointed me to CpuSpd, a modern, free utility by some Vogons dude. It's rather powerful and I think it trumps the competition. So far I saw it can handle even the proto GW Basic games from 1982. But only just! So I'm wondering if that 2.4Ghz wouldn't be a threshold for slowing (unless it works in some other way). 1 2 Quote Link to comment Share on other sites More sharing options...
Tempest Posted February 14, 2021 Share Posted February 14, 2021 I have a 486 hooked up to a Roland MT-32 for early Dos stuff, a Pentium 133 for windows 3.11 and later Dos stuff, a Pentium 4 for Windows 98 stuff and an IBM 5150 with a monochrome monitor for the earliest Dos stuff. I also have a modded PCjr for Tandy graphics/sound stuff. 3 Quote Link to comment Share on other sites More sharing options...
Tanooki Posted February 14, 2021 Share Posted February 14, 2021 15 hours ago, Reaperman said: At the moment, my thread's poking up close to this one, so everybody's seen mine--but that won't be the case years from now when this thread's 50 pages long, so here it is again. It's a PIII running MSDOS 7.10. I think my favorite part about it is that Dell-branded Trinitron. Given how nuts people go over PVMs, it's odd these have exactly zero buzz. Coincidently, I bought my moslo deluxe just today for the 'mode 3' that's supposed to work wonders on PIII's. It also has a few nifty features like providing 5 'pc generation' presets, and being able to disable L1 cache. Unfortunately, most, if not all, of the 'deluxe' features don't play well with emm386 or protected modes, which seriously limits their usefulness for 90's titles. Should still work a treat for the oldiest of oldies, though. And good taste in game there, Screamer! I had that back in the day. I've got it wishlisted on gog for when the next sale rolls around as it cuts deep but not common to come up in sales. And I do entirely agree I wish my Neo Geo had a CRT like even those off the rack maker branded monitors did like that Dell you have there. The level of insane sharpness, clarity, crispness basically spits in the face of your arcade/home tv level quality of vaseline glow crap for sharpness. If they had a 25" PC monitor out there I could force into my cabinet I'd take that. 2 Quote Link to comment Share on other sites More sharing options...
ed1475 Posted February 14, 2021 Share Posted February 14, 2021 (edited) My main DOS computer is a Tandy 1000 SL. It has an Intel 8086 at 8/4 MHz, 640K RAM, ms-dos 3.30, 20MB hardcard (Seagate ST-325X) and a 300/1200 modem card. Deskmate gui. Edited February 14, 2021 by ed1475 5 Quote Link to comment Share on other sites More sharing options...
Tempest Posted February 14, 2021 Share Posted February 14, 2021 You can just see the Power Mac G3 and P4 on the floor: 3 Quote Link to comment Share on other sites More sharing options...
Keatah Posted February 14, 2021 Share Posted February 14, 2021 Whoever thought these beigeboxes would become nostalgic? And in some cases even sentimental.. 2 Quote Link to comment Share on other sites More sharing options...
bluejay Posted February 15, 2021 Author Share Posted February 15, 2021 7 hours ago, Turbo-Torch said: I have a 1988 IBM P70 that uses DOS 6.22. This unit can run in two different modes. It's IBM's highest spec P70 with the 20mhz 386, math coprocessor, 8mb of ram and 120mb hard drive. It uses a VGA red gas plasma display, 1.44mb floppy and full size keyboard. These were crazy specs for 1988, and more impressive is that it's a portable the size of a large briefcase. It also has a VGA port on the back so you can use a normal color VGA monitor. It has a Kingston AOX MicroMaster upgrade board using one Micro Channel slot. That brings it up to a 486 with 64mb of ram. That AOX board has also been upgraded with a Kingston 5x86 133mhz Turbo Chip. At startup I can press O to boot to its native 386 configuration or let it boot to the AOX 5x86 configuration. I also have another twin of this, but with a 486 75mhz CPU. That. Is my single favorite one I've seen so far. VGA gas plasma? That is ridiculous. Especially with a 133mhz 5x86. That's faster than my proper, late 90s DOS laptop! I love 80s portable machines, but was always depressed at how they all had CGA, 286's, sometimes awful passive matrix LCDs, and awful keyboards. That is *the perfect* portable DOS computer, except for perhaps the Compaq Portable 486. That one had an active matrix color TFT instead of gas plasma and was capable of VGA. But that came in the 90s. Does the p70 have the clicky keys or are they the rubber dome ones? Man, if I had one of those, I'd probably but a SD-IDE adapter (assuming it uses IDE) or some other form of hard drive solution, get an OPL3LPT, and run some DOOM! Maybe install Windows 95, or 98SE, even. Never used a PC with a gas plasma display though; can't imagine it would be terribly good for gaming. 1 Quote Link to comment Share on other sites More sharing options...
Turbo-Torch Posted February 15, 2021 Share Posted February 15, 2021 18 minutes ago, bluejay said: Man, if I had one of those, I'd probably but a SD-IDE adapter (assuming it uses IDE) or some other form of hard drive solution, get an OPL3LPT, and run some DOOM! Maybe install Windows 95, or 98SE, even. Never used a PC with a gas plasma display though; can't imagine it would be terribly good for gaming. It uses an ESDI hard drive and the expansion slots are Micro Channel. The plasma display is red monochrome but it's like watching a plasma TV, razor sharp contrast and no motion blur. If you plug in a VGA monitor, you have full color and the plasma automatically turns off. The keyboard is one of the best. It was made by Alps and uses plate springs...nice tactile feedback and clacking noise with each key press. The big downside to this system is the Micro Channel slots. The MCA Sound Blaster or ChipChat cards are incredibly rare and expensive...like in the $1,000 range when they turn up. I see TexElec has an Adlib compatible card called Resound for $60 that I'm thinking of trying. Unfortunately no game port though. I think Doom would look bad ass on that red display. I'm gonna have to give that at try. 1 Quote Link to comment Share on other sites More sharing options...
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