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Other Computer / System Cores • Tiger Learning Computer (Late variant of Apple II) compatibility

MISTerFPGA about 5 months ago

I was completely unaware of an Apple II computer that sold in the mid to late 1990s in limited supply, that was portable like a laptop, but with no screen. Behold the Majesty of the... Tiger Learning Computer: https://www.youtube.com/wat... …

IBM PC, PCXT, Tandy 1000 • Tandy sound on Space Quest and odd CGA colors

MISTerFPGA about 5 months ago

Hi, I'm having a heck of a time getting Space Quest to run in Tandy mode on the pcxt core.In the pcxt mode with pcxt31.rom, I can load up my ao486 vhd to access the game directory. The colors are not correct in CGA (they show up as orange, green, etc.) My …

Most advanced BIOS that works on a IBM 5150 to support the cassette interface

VCFed about 5 months ago

Hello everyone, I am working on a project to recreate the IBM 5150 in a more expanded modern form, similar to my other projects. This project will be done by my daughter so I am using this as an educational CAD design example. The reason why I am especia …

Compaq 386 - floppy drive and GOTEK woes

VCFed about 6 months ago

Hi All I've got a bunch of Compaq Portable III and 386 machines which I am trying to make usable again. It seems that the III was a 286 which tended to come with 5.25" floppy drives and a hard disk. The 386 came later with a bigger hard disk and usua …

Wanted: AMD Ryzen 5 3600X

VCFed about 6 months ago

I'm looking for a cheap, straight pinned, 3600 that will POST. Mine is toast and I need one for several X370 motherboard projects which have the basic un-stepped BIOS. …

ISA Super VGA Sergey’s - monochrome

VCFed about 6 months ago

Hello I made an ISA Super VGA card. PCB V1.1. On a Commodore PC10 computer, the video is monochrome. 1. I removed FB6 and C17 - no change, monochomatic video 2. Bios 3.51 and 4.01 - no changes, monochomatic video 3. I connected the original TRIDENT VGA …

IBM XT286 with IDE and CF-Card problems

VCFed about 6 months ago

Hello, After in my old IBM XT286 (with the original BIOS from 04/21/86) the original MFM hard drive crashed, I replaced the original IBM Fixed Disk and Disk Drive Adapter with an M51505 A4 Mini Super IDE controller with a 256MB CF card. The floppy drives …
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Chit Chat • Mednafen Frontend Setup Guide 2023

Lemon64 about 6 months ago

Mednafen easy setup guide including how to install an interface where this can easily be ran without command lines. This setup includes everything you need to get you started. How to install bios files, how to configure controllers per system, how to setu …
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Got a new card for my Vtech laser XT/3 and dump (modem7)

VCFed about 6 months ago

Bios dump. Made direct the bios dump before adding any current to it. Is there someone that maybe have more information on these jumper settings? Tried to look online, but didnt found much that should be 1:1 the same (matching) …
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2x Mitsubishi ED 3.5" Disk drives (2.88mb).

VCFed about 6 months ago

Here I have 2x Mitsubishi MF256C ED Disk drives (these are the 2.88mb option in your 1990s BIOS and they also read/write 720k and 1.44mb disks!). Quite elusive drives, both are tested and fully working. 80 Euro each or 150 Euros for the pair. I will includ …

Could anyone please help me find this bios?

VCFed about 6 months ago

Or something to unlock the bios of a AU31 motherboard I need this to fix a issue where the AMD Athlon 2700+ is showing up as a AMD Athlon 1500+ and I cannot change the FSB the jumper on the board does not change anything. …
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PPSSPP Setup Guide For Windows PC

How To Retro about 6 months ago

In this PPSSPP setup guide, I show you how to configure the Windows PC version. PPSSPP is a brilliant emulator for beginners because of its straightforward interface and with there also being no need to use BIOS files to play PSP games, it’s one …
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PPSSPP Setup Guide For Windows PC

How To Retro about 6 months ago

In this PPSSPP setup guide, I show you how to configure the Windows PC version. PPSSPP is a brilliant emulator for beginners because of its straightforward interface and with there also being no need to use BIOS files to play PSP games, it’s one …
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PPSSPP Setup Guide For Windows PC

How To Retro about 6 months ago

In this PPSSPP setup guide, I show you how to configure the Windows PC version. PPSSPP is a brilliant emulator for beginners because of its straightforward interface and with there also being no need to use BIOS files to play PSP games, it’s one …

Reviving an Orchid PCturbo 286e Accelerator Card

VCFed about 6 months ago

I have two non-working PCturbo accelerator boards that I’ve been trying to revive. These boards are particularly interesting as they do not use a cable to connect to the CPU socket but are instead able to control the 8088 and use it for I/O. On startup t …
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IBM 5150 08/16/82 BIOS - Has anyone ever seen this?

VCFed about 6 months ago

The early Rev A 5150 I recently got has a very strange BIOS dated 08/16/82. The chip is copyrighted 1982 and the part number is 5000024, which I have been unable to locate ANY info for online. The first-known 5160 BIOS is dated 08/16/82, but there doe …

IBM PS/1 model 2121 (UK)

VCFed about 6 months ago

Does anybody have this model and can backup its ROM BIOS? Thanks!! …
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DuckStation Setup Guide

How To Retro about 6 months ago

DuckStation is one of the latest PS1 standalone emulators available and is focussed on not just emulation performance, but also user experience. Whilst the DuckStation UI is excellent and easy to use, you can never have too much help when it comes to emul …
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DuckStation Setup Guide

How To Retro about 6 months ago

DuckStation is one of the latest PS1 standalone emulators available and is focussed on not just emulation performance, but also user experience. Whilst the DuckStation UI is excellent and easy to use, you can never have too much help when it comes to emul …
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DuckStation Setup Guide

How To Retro about 6 months ago

DuckStation is one of the latest PS1 standalone emulators available and is focussed on not just emulation performance, but also user experience. Whilst the DuckStation UI is excellent and easy to use, you can never have too much help when it comes to emul …

Cassette BASIC and storage

VCFed about 6 months ago

Folks, some tidbits have arisen on the Cassette BASIC used on PS/2s, not much, but it makes me curious... The early PS/2s, 8550-8580, use Cassette BIOS C1.0 [32KB in size], I DIMMly remember. The later PS/2s use Cassette BASIC C1.10 [32KB in size], but it …

Modern HDD replacement for laptops without user type support

VCFed about 6 months ago

The original Conner HDD in my Nan Tan FMA8100 luggable/laptop is cactus, don't think I can get it to work. I'd like to replace it with a CF card or something cheap and simple, but the BIOS doesn't support a user type, just the predefined ones. Considering …

Corrupt CMOS even after battery change Sharp PC-7200

VCFed about 6 months ago

Hello everyone. I have a Sharp PC-7200 that when booting complains of "Invalid configuration information" and says to "Strike F1 to continue". When I got it, the original CMOS battery was dead, as you might expect. I've replaced it w …

Green 753 Laptop CPU setup & more

VCFed about 6 months ago

The Green 753 was sold by ARM, Brick/Egro, Trogon and Jetta -- perhaps a dozen more brands. The last version of the factory BIOS could only reported CPU speeds only up to 166 MHz. I have installed a 200 MHz CPU and it operates correctly in the Green but …
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Chips & Technologies Video BIOS "For Evaluation Use Only" - WinBook XL

VCFed about 6 months ago

Did the WinBook XL laptop ship with an evaluation version of the Chips & Technologies video BIOS? Below is a photo of the splash message on POST before AMI kicks in. Also notice how in the top left it says "HIPS 6X554..." where I suspect it s …