Re: Point of sale systems - Cheap hardware, high quality ... or just a POS?
Posted on 2021-07-21, 12:27
IIRC I think serial runs upto 24V anyway so shouldn't be an issue on that front. May want to check that though.
Re: Trying to fix a faulty DTK Pim-Turbo "8MHz Turbo Board" Rev-5 with Siemens SAB8088-2-P 8088 CPU + 640KB RAM
Posted on 2021-07-20, 20:48
It should just work. The controller doesn't need to be jumpered to DD. It's just that the XT wont be able to use the HD data rate used by 1.44MB disks. If you read a 720KB disk on an AT, the controller is behaving as it would on an XT. All floppy controllers have no idea what you have connected to …
Re: Point of sale systems - Cheap hardware, high quality ... or just a POS?
Posted on 2021-07-20, 20:22
Be interesting to know how you get on. That IBM looks sweet. Always wondered about POS. Parents had a cafe for a while and though to using one in it, but old till met their requirement fine, so never got to play with that hardware. Still would like to play with some of this stuff but always stumped …
Re: Trying to fix a faulty DTK Pim-Turbo "8MHz Turbo Board" Rev-5 with Siemens SAB8088-2-P 8088 CPU + 640KB RAM
Posted on 2021-07-20, 19:56
I've never had any compatibility problems with using 1.44MB drives in place of 720KB drives either. 5.25 drives are another kettle of fish. Here is what i would recommend to make a boot floppy. 1. Wipe a 1.44MB disk with a magnet then tape over the density hole. Or just get a 720K disk. 2. Format it …
Re: Change a game's name by one letter, to make it something completely different (just for fun!)
Posted on 2021-07-19, 20:14
Best drive (test drive) - Same game really Text drive (test drive) - A texting while driving simulator Zest drive (test drive) - Same game really but tastes zesty Jest drive (test drive) - a jesting simulator. can you make the king laugh or will he execute you? Barmageddon (Carmageddon) - A somewhat …
Re: Change a game's name by one letter, to make it something completely different (just for fun!)
Posted on 2021-07-19, 19:53
Re: Change a game's name by one letter, to make it something completely different (just for fun!)
Posted on 2021-07-19, 19:45
Re: The Ultimate Hardware 2019 (UH19) project- a stason.org/TH99 alternative
Posted on 2021-07-19, 19:32
Specifically on the form factor field. There are a lot of OEM/Prop. boards that are not yet identified as such. We went through 5000+ boards looking for errors. AT and ATX should be fairly accurate. IIRC at the time we didn't have an OEM/Prop. category. An oversight. There is also the 1000s of …
Re: Trying to fix a faulty DTK Pim-Turbo "8MHz Turbo Board" Rev-5 with Siemens SAB8088-2-P 8088 CPU + 640KB RAM
Posted on 2021-07-19, 19:05
You mention you stuck an AT keyboard in it. It's an XT so needs an XT keyboard. Check if your keyboard has an XT switch on the bottom of it. You'll get nothing out of an XT with an AT keyboard. No idea what the beep codes mean, could be keyboard, could be RAM. The few DTK BIOS board I've dealt with …
Re: Old servers - what are they good for?
Posted on 2021-07-19, 18:42
Do you have this actually setup? sounds awesome! what hardware/software you running? There you go you've impressed me that's another excuse ;) Currently since I've moved house, no. I've been more concerned with horrifying wiring, plumbing etc. My setup before I moved was based around a Madge MAU. …
Re: Old servers - what are they good for?
Posted on 2021-07-18, 19:45
FYI the netserver LM is documented here: http://www.win3x.org/uh19/motherboard/show/2834. There are 2 manuals there that cover various early netservers. Buy they are very scant on info. I'm currently documenting the early netservers. Don't think i've found the LCII, got the LC3 and LC though. Here …
Re: 1996 "Workstation," Build Ideas?
Posted on 2021-07-18, 17:40
The first boards for PII were 440FX in early '97, around mid '97 (IIRC) it was the LX with the all new AGP. IF we are talking dual, then LX boards seem hard to come by in my experience. The FX boards were used in loads of mid-range servers so there are a few more kicking about. What you go for …
Re: IBM PS/2 Model 50 Hard Drive
Posted on 2021-07-05, 15:16
Iirc that interface most closely resembles st-506, so you may be able to do a hookup that way. Or just go with an addon card. SCSI is probably going to be the easiest.
Re: Case suggestions for oversized Compaq PSU
Posted on 2021-06-28, 01:11
I think that Compaq PSU is a similar size to IBM PSUs from that era. I have crammed the IBM EPS12V PSUs into all sorts of midi tower cases. Antec/Chieftec cases come to mind. IIRC i could get two of the screw holes to line up properly.
Re: Would you be interested in an x86-based alternative to the Raspberry Pi, optimized for retro gaming?
Posted on 2021-06-24, 00:10
Bump to get this to page 10. I want to see what happens too!
Re: Would you be interested in an x86-based alternative to the Raspberry Pi, optimized for retro gaming?
Posted on 2021-06-22, 02:46
I'm a bit confused by this long thread. so forgive me if i have missed a few things. The target is win 98 compatibility. So we are excluding those very old cpu-timed games that only run on an XT. And we are excluding games from the XP era that don't support 98. So we are left with (broadly) 2 types …
Re: IBM PC 350 - What is the female DB9 port on the back of the motherboard?
Posted on 2021-06-22, 01:25
USB keyboard/mouse was much later than USB ports. To give you an idea in 1999 my PII 400 had standard PS/2 keyboard/mouse, a D15 joystick and a parallel scanner. Those USB ports didn't get used for years. I was a fairly standard computer user. I'm sure USB devices existed, but there was no real …
Re: MSI 386 motherboard memory issue
Posted on 2021-06-21, 20:25
I'm not sure about tying the pin directly to ground. The line should have either a resistor to pull it high or one to pull it low. If it has one somewhere to pull it low, then to pull it high,the motherboard connects it directly to 5V. If this is the case, pulling it directly to ground without a …
Re: Dialup pool with fake PSTN (ISP SETUP)
Posted on 2021-06-20, 21:31
I got an old British Telecom PBX about 10 years ago for free. Think it has 16 or 32 ports on it. Been meaning to connect it together with 10 nice USrobotics 56K External modems i have. They were 1 pound each. Never got round to it though. Think from my research the fastest I could get was 33Kbps. On …
Re: MSI 386 motherboard memory issue
Posted on 2021-06-20, 18:43
In my head i'm thinking "gate A20". Can't remember the exact details but IIRC the keyboard controller has a trace routed to it to do with memory. Perhaps someone with more knowledge can elaborate. Can you remove the keyboard controller and reinsert it? also check traces under it for battery damage. …
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