Re: 5.25" Floppy drive support.
Posted on 2020-11-20, 17:24
I don't concern myself with period correct, though I agree that 1GB is better. XP will run anything that 2k (and for the most part 9x) will while offering superior UX and reliability
Re: How to test 30pin SIMMs ?
Posted on 2020-11-20, 16:36
Yes. Punch in the IC part numbers into google and see for yourself
Re: How to test 30pin SIMMs ?
Posted on 2020-11-20, 16:23
They are 256 KB + parity. Are you sure the bank is filled up? Memory bank = 2 x SIMM30 for 386SX, 4 x SIMM30 for 386DX/486. Each module has two 256kB chip and third one for a parity. So I assume the capacity of each module is 512kB. David Each "256kb" chip is 256k x 4 bits. It takes two of them to …
Re: 5.25" Floppy drive support.
Posted on 2020-11-20, 14:51
I run XP on a dual pentium pro 233 system with 512MB RAM. Runs fine. 256MB is not adequate though
Re: PS2TOSERIAL : Connecting a PS/2 mouse to the serial port
Posted on 2020-11-20, 14:50
In the original thread there was talk of using 9600 baud for the "high speed" mode and implementing the logitech command to change to said speed. The purpose was to allow high precision use with unmodified logitech drivers. Was there ever any progress on this?
Re: Help w/ RAM Upgrade for IBM 5170 (AT 286) PC?
Posted on 2020-11-19, 13:23
AFAIK the BRAT90 will work with this driver, same as the rest of the plus line For the BocaRAM AT Plus series, the driver is needed to configure the cards - they don't have DIP switches. Additionally, you will need a driver for any memory board if you wish to use expanded memory. (Which a fair swath …
Re: Help w/ RAM Upgrade for IBM 5170 (AT 286) PC?
Posted on 2020-11-19, 01:50
I don't recognize the first one. I know for a fact how to get and install the drivers and documentation for the Boca products. The first one may be fine but good luck figuring out the DIP switches and getting an expanded memory driver for it. Fyi all 3 of these listings are heavily overpriced. I got …
Re: Help w/ RAM Upgrade for IBM 5170 (AT 286) PC?
Posted on 2020-11-19, 00:43
The BocaRAM boards are what you want. Do not use a lo-tech in an AT you will regret bottlenecking the memory to 8-bit mightily
Re: The 3 voice sound PCjr/Tandy 1000 games patching thread!
Posted on 2020-11-19, 00:39
carlostex wrote on 2020-11-18, 19:22: No, that wasn't my goal. Although it can probably be done. In any case port 0C0h works well with both 8086/8088 and 286's. So i don't really see the point. But it can be done i guess. 286's have a second DMA controller at that address so not really
Re: AMD DX4 100MHz build
Posted on 2020-11-19, 00:37
Disruptor wrote on 2020-11-18, 21:13: Your ISA bus is overclocked to 11 MHz. ISA BUS clock should be 1/4 PCLK. Bullshit, if it is working at 11MHz he should leave it be I always overclock my ISA when possible, 11 is tame - it's when you get up over 12 that things stop working
Re: PS/2 to Microsoft Serialmouse Adapter Converter / Updated First Post / Firmware Update added
Posted on 2020-11-18, 13:20
thanks MJay99!
Re: Diamond Speedstar24 Bios versions
Posted on 2020-11-18, 04:46
What about windows 3.x drivers? The ET4k package I have has options for 32k and 64k colors but neither worked with my AT&T DAC I tried. Of course, this was using the version 4 BIOS so an update may resolve that. Can those of you with the Speedstar24 working in >256 color mode on 3.x chime in with …
Re: PS/2 to Microsoft Serialmouse Adapter Converter / Updated First Post / Firmware Update added
Posted on 2020-11-18, 04:40
did anything ever become of the effort to modify the firmware to support the logitech baud rate switch command to allow for 9600 baud with unmodified logitech drivers? ETA: is the a BOM for the new SMD version anywhere? I'd like to build one
Re: Diamond Speedstar24 Bios versions
Posted on 2020-11-17, 15:46
Baoran wrote on 2020-11-17, 14:25: Since it seems I have done it correctly. Here is the 6.01 bios version from a card with the same SS2410 chip. this also matches exactly the 6.01 image that imi posted on page 2 of the thread - and he has the samsung DAC I'd say the "BIOS is DAC specific" myth is …
Re: The 3 voice sound PCjr/Tandy 1000 games patching thread!
Posted on 2020-11-17, 05:18
Do you also patch the hard coded I/O address games to use "int 0c0h" instead of "out 0c0h" so people can use the games without port redirection software that requires a 386 or better? I remember scali describing this method and I thought he said it was you doing it but I could be wrong
Re: Diamond Speedstar24 Bios versions
Posted on 2020-11-17, 05:13
Hello: Need the BIOS version 5.01 of the Diamond Speedstar 24 (ET4000 based), because I have such a card but the EPROMs are faulty! thanks I think you need to tell which ramdac your card has that if someone posts that they know if they have the same one. No one has yet proven that different DACs …
Re: XT clone motherboard not accepting -12V rail
Posted on 2020-11-15, 20:20
Thanks, I will check - there are four tantalum capacitors just beside the P8 and P9 connectors - they don't show any visible sign of damage, but worth putting them to the test. I'd bet good money they are the culprit. The reason they explode is because they short internally, but if the PSU short …
Re: Native PS/2 mouse implementation for 386/486 boards using the keyboard controller
Posted on 2020-11-15, 19:57
I'd like to poll everyone who is using a variant of the ps/2 circuit presented in this thread Do you use an active KVM with it, and does it work properly? Which KVM? I sold some boards to a friend of mine who is using a Belkin Omniview and he is reporting that it will work only briefly and then …
Re: Simmconn AWE64 Adapter
Posted on 2020-11-13, 20:31
I think you need a new PAL fisherman
Re: Computer Chronicles on YouTube - How far we have come since the early 1980s
Posted on 2020-11-13, 20:30
Almoststew1990 wrote on 2020-11-13, 17:35: They're also pretty interesting as a non-US person seeing 80s and 90s US TV shows. Perhaps the last era of US optimism indeed, it was a great time to be alive
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