• Please review our updated Terms and Rules here

Search results

  1. C

    Good EGA card that fits inside a 5160 case

    You can easily determine if the card is too tall by looking at a picture of it. Regular ISA cards do not typically extend much beyond the top of the metal slot bracket. "AT" height cards are taller than the slot bracket. I hope this helps.
  2. C

    Good EGA card that fits inside a 5160 case

    The IBM EGA card fits, as do many others like Paradise ega, etc.
  3. C

    Five Festive 5150 Boards (BOARD #1 Thread)

    I believe Ruud wrote some info about single stepping PCs using IOCHRDY signal ... might be useful if you want to try single stepping for diagnostic purposes http://www.baltissen.org/newhtm/debuggerPC.htm
  4. C

    Help identifying strange 286 motherboard

    Have you tried calling the phone number and asking for support? :LOL: I'm curious to learn more about it too... interesting find!
  5. C

    Seattle Computer SCP-220A? 8088 module identification

    Cool and thanks for the pics. I have not actually tried mine yet, but that's good news it works in the PC.
  6. C

    IBM 5162 Prototype ？

    Thanks, that's the one and appears to be the same board. Also, I wanted to mention the 5162B sticker on the full board picture that is now available (in the bottom corner) ... very interesting.
  7. C

    IBM 5162 Prototype ？

    I remember a post recently where someone else had a vague picture of the same board in a 5162 ... seems to be a very rare variant for sure, and this is the first full board picture I've seen. Thanks for sharing!
  8. C

    IBM 5150 08/16/82 BIOS - Has anyone ever seen this?

    Wow, great find, and thanks for sharing!
  9. C

    IBM PC 5150 Rev. A S/N: 0126215

    Why rebuild the power supply? Sounds like it is working just fine.
  10. C

    The 8088 Prefetch Algorithm #2

    Excellent write-up! Thank you
  11. C

    I hate myself - M keyboard

    5150 is not compatible with model M. Sounds like the keyboard is fine.
  12. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    I believe your serial number is correct. That would be XT #3755, thanks for sharing!
  13. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    Awesome observation about the 8304 date code!
  14. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

  15. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    I made an interesting observation regarding the "YH" stamp and early IBM rom chips... 1) The 5000026 chip is dated 8242 with a "YH" stamp. (none of the known later date codes have it) 2) I found a picture of a 5700051 (early PC BIOS) chip which is dated 8124 and also has a "YH" stamp. 3)...
  16. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    Interesting! Somebody somewhere has a few thousand of these things in a box in the attic :LOL:
  17. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    My surprise, i suppose, was that I had assumed these ROMs were produced for just a short window of time between Dec '82 and Jan '83, but the October date code changes my assumption, as they were obviously produced over a wider range of time, or possibly in more than one batch. I too would be...
  18. C

    IBM 5160 XT early BIOS 5000026 found with interesting date code

    Hi everyone, I want to share this interesting find with the vintage community. It is an early BIOS ROM for the 5160 XT that was recently rescued from ebay. The date code is 8242, which is a few weeks earlier than the other known 5000026 ROM ICs. There are 3 examples documented at the...
  19. C

    Quick Survey: What version of Dos for XT machines?

    MS-DOS 5.0 generally, but sometimes other versions too depending on the purpose.
  20. C

    Seeking Jumper information on Epson Floppy Controller Card

    https://files.support.epson.com/pdf/e2p___/e2p___ps.pdf I found this service bulletin with a few clues in it. Looks like Jumpers J3 and J4 configure the parallel port.
Back
Top