Re: Error writing FAT. Format terminated

Posted on 2021-11-26, 17:29

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The manual only showed 128k cache as an option. Are some chipsets / motherboards not able to go to 256k? Upload a picture of the board? We can guess depending on whether there are four+one or eight+one sockets, and whether they are 28-pin or 32-pin or a mix of both. 128K is not going to be enough …

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Re: Serial Mouse into Rasberry PI then use USB to RS232 to send RS232 Data to a legacy PC?

Posted on 2021-11-17, 02:18

by

by jakethompson1

in PC Emulation

in PC Emulation

This far exceeds my knowledge but I'm wondering how difficult would it be to process USB mouse data then output that on a RS232 port using a raspberry PI as a host. Doing a bit of research seems like someone else already did it, has any one tried this? Obviously it's getting harder and harder to …

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Re: TSR-Programming/Assembler: Why do i need a Keypress under Dosbox on releasing TSR Memory?

Posted on 2021-11-16, 21:34

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anyway, does anybody know how to check whether Windows 9x is running in the graphics mode? This might also be of interest for llm, as some video-handling TSRs should not activate when Windows is running. Windows will make INT 2F calls that you can hook to know when it loads and exits. http://mirror …

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Re: TSR-Programming/Assembler: Why do i need a Keypress under Dosbox on releasing TSR Memory?

Posted on 2021-11-16, 20:38

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Might want to free your environment segment from the initial launch before going resident to save a little memory? I don't remember off-hand if you might be leaking it. Don't think you need the wrapping cli/sti when asking DOS to replace int10h. I think that is the reason to let DOS do it rather …

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Re: Fastest socket 7 super socket motherboard

Posted on 2021-11-14, 21:40

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sounds like you actually mean Super [Socket] 7 right? Believe ALI Aladdin V and VIA Apollo MVP3 would be contenders for top chipset.

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Re: Any tips to increase the clock beyond what the motherboard provides?

Posted on 2021-11-14, 02:39

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Later CPUs redefined 1.5x as 3.5x, try jumpering as 1.5x

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Re: New EPROM for a PCI VGA card...?

Posted on 2021-11-14, 02:06

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here in the US AT27C512R chips in 28-pin DIP format are $2.80 apiece. Those chips are one-time programmable. 28-pin chips can be in multiple capacities, 512 kilobits (64 KB) being the biggest. If the video BIOS is smaller than that, it's best practice to concatenate multiple copies of it to fill the …

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Re: Error writing FAT. Format terminated

Posted on 2021-11-14, 02:00

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's it, set LBA mode control to enabled and it should work. Old Phoenix BIOSes have some bugs with disks of various sizes, but I think a 2GB drive is below those limits. The autodetected settings look plausible. The issue is that the interface between DOS and the BIOS can't handle more than 1024 …

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Re: Error writing FAT. Format terminated

Posted on 2021-11-14, 01:44

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What settings are in the BIOS for the disk? Sometimes the BIOS doesn't support LBA, but will let you set a number of cylinders > 1024. That could cause issues like you are seeing. Does the BIOS have any "LBA", "Large", "Large Disk Access Mode" type settings? If not, and you don't want overlay …

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Re: XT-IDE on an AT clone: should this work?

Posted on 2021-11-14, 01:41

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well there are two issues. There is the XT-IDE Universal BIOS which solves any software compatibility issues along with the 504MB barrier. Just because you use the BIOS doesn't mean you have to also use the XT-IDE card. Because the XT-IDE card is only 8-bit, it is slower than a 16-bit IDE interface …

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Re: Market value for popular or rare classic computer hardware

Posted on 2021-11-13, 03:32

by

by jakethompson1

in Milliways

in Milliways

The finest hour of the retro computing hobby will be the day someone stumbles across a *huge* warehouse of unsold Sound Blaster Pros. And they rain down on us for $10 a piece. (I can dream) But why? Pretty much everybody and their brother/sister/cousin/in-law/acquaintance/enemy made perfectly good …

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Re: Would manually inputting CHS values damage a CF card?

Posted on 2021-11-08, 19:30

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello everyone, I am currently putting together a W98 based build for late 90s retro gaming. By design I've thought of having a spacious 64GB (excessive I know) CF card to store my games without worries, however, as I hook up the card, the BIOS fails to detect its full capacity. I've used WHATIDE …

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Re: Trying to identify the make/model of AT Case

Posted on 2021-11-08, 04:35

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys, Just happened to come across this thread looking for more information on Quantex. As it so happens I have this exact case and it is (or was) a Quantex "Pro Series" model. I don't recall what the original configuration was, but I do remember that it had a Biostar MB-8433UUD-A motherboard, …

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Re: NetWare Client and Conventional Memory

Posted on 2021-11-07, 01:58

by

by jakethompson1

in Marvin \ Software

in Marvin \ Software

I believe the technique they are using was called CLOAKING https://en.wikipedia.org/wiki/DOS_Protected_M … rvices#CLOAKING

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Re: What are the most popular DOS era parallel port printers?

Posted on 2021-11-06, 02:12

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I kinda got curious about DOS era printers. What are some very popular, well supported, DOS era, parallel port printers? Are any of them documented (like the protocol and such) ? First to my mind was Epson FX and LQ dot-matrix printers. A good way to find out would be to look at the list of drivers …

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Re: Memory post count on 1mb xt juko board shows 640k

Posted on 2021-11-06, 01:50

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's also some user-made EMS driver. But it should be noted that the 384KB extension isn't available in the memory address space, only through I/O ports. So the EMS page frame must be located below 640K, leaving only 576 KB of conventional memory. wow imagine designing a XT class system that …

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Re: 32 megs of ram is enough for a DX4?

Posted on 2021-11-05, 01:34

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Worth mentioning that the price of RAM dropped from about $35/MB or so in WfW 3.11's heyday/Windows 95 release (1994-1995) to $1/MB by the time Windows 98 was ready (https://jcmit.net/memoryprice.htm) So 4 or 8 MB configurations on a 486DX2 or DX4 would have been quite common. 32MB and 64MB would …

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Re: Installing XP by USB- works on Optiplex, doesn't work on ASROCK MB- huh?

Posted on 2021-11-02, 22:05

by

by jakethompson1

in Windows

in Windows

It looks like that board has only USB 3. USB 3 controllers are not backward compatible at the driver level with USB 1.1/2 ones. You either need to slipstream the USB 3 drivers into a custom Windows XP install image, or just use the CD drive. You likely face the slipstream issue anyway for SATA AHCI …

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Re: PS2 or Serial mouse for Pentium build? Suggestions?

Posted on 2021-11-02, 02:50

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I really prefer just using a MS (or sufficiently compatible) mouse that can do 19200... this results in about 400 "mice baud", definitely sufficient for smooth mouse control. I just downloaded a later Logitech DOS driver (mouse.exe) from inside ftp://ftp.logitech.com/pub/techsupport/mouse/ …

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Re: PS2 or Serial mouse for Pentium build? Suggestions?

Posted on 2021-11-02, 02:13

by

by jakethompson1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I really prefer just using a MS (or sufficiently compatible) mouse that can do 19200... this results in about 400 "mice baud", definitely sufficient for smooth mouse control. I just downloaded a later Logitech DOS driver (mouse.exe) from inside ftp://ftp.logitech.com/pub/techsupport/mouse/ …

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