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  1. Yeah, the CR2032 wasn't sufficient enough....

    Yeah, the CR2032 wasn't sufficient enough. Apparently, the diode drops the voltage by 0.5V-0.58V, which is insufficient and the RTC requires 2.7V-4.5V exactly. I decided to solder a 3x AA battery...
  2. And the clock won't keep up. When I power it off,...

    And the clock won't keep up. When I power it off, the time is 9 minutes behind (if I leave the system off for 9 minutes) or the settings disappear. I already checked the connections and they are all...
  3. Ordered an Intel 386 DX-33 and swapped the 3.5"...

    Ordered an Intel 386 DX-33 and swapped the 3.5" FDD and cable so that I could use the 3.5" as drive A instead of B. Need to figure out the schematics for this board so that I can solder a diode to...
  4. SX or DX? And Intel or AMD?

    SX or DX? And Intel or AMD?
  5. The math co-processor is a CHiPs 387 and the CPU...

    The math co-processor is a CHiPs 387 and the CPU is a Cyrix Cx486DLC-33GP. Battery damage is minimal, so that'll be an easy cleanup and the innards, minus the battery are really clean.
  6. $10 386/486 (Cyrix Cx486DLC installed + math co-processor) adventures

    Bought me another computer and this time a 386 system. It currently has a 1.44MB 3.5" FDD, 1.2MB 5.25" FDD, and some size IDE HDD installed along with a generic (possibly a WinBond chip) ISA I/O...
  7. Keyboard is totally gone and the floppy drive...

    Keyboard is totally gone and the floppy drive wasn't working and in dire need of the keyboard and floppy drive.

    Acer FDD-101 --> Floppy drive
    Acer kas1901-0161r --> Keyboard (US Layout)

    I'd...
  8. Fixed 2 of the 3 issues. Apparently, a bad CMOS...

    Fixed 2 of the 3 issues. Apparently, a bad CMOS battery causes the laptop to not go to the Basic settings in the BIOS. Why they placed the CMOS battery under the keyboard and requires removal of...
  9. Texas Instruments Extensa-Scholar ESS3/Acer E610CDT issues and questions

    On Thursday, I received the Texas Instruments Extensa-Scholar ESS3/Acer E610CDT laptop running on a Pentium 133 with 16MB RAM and plugged it in to see what happens.

    I get greeted with a display...
  10. So basically a unit with a video card, serial,...

    So basically a unit with a video card, serial, parallel, and HDD?
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    New person as well, so...

    New person as well, so...
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    R and RW are the big difference for CDs: one is...

    R and RW are the big difference for CDs: one is green, 1 is blue. DVD R and RW are the same color coating. I remember some early PS2 systems had issues with blue or purple CDs and didn't work with...
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    I had issues with CDs being burnt as a CD to add...

    I had issues with CDs being burnt as a CD to add more files and folders to it with a 2x CD-ROM Panasonic CR-563-B drive and after installing a 24x CD drive, it works. Try burning CDs as a single...
  14. That is unusual that it's not producing digital...

    That is unusual that it's not producing digital sound. My Sound Blaster 16 CT2230 works without issues in Windows 95 (I use another card for DOS games). I also discovered that your card has 3 CD-ROM...
  15. I might backup that chip on my board sometime,...

    I might backup that chip on my board sometime, however, my programmer stopped working and I need to find a way to get the keyboard firmware as a bin file, but I need a programmer and a PLCC alligator...
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    Found jumper settings for the PPC640:...

    Found jumper settings for the PPC640: https://www.seasip.info/AmstradXT/ppc640dip.html

    I'm interested in the unit as well, and how much would shipping be to 48313?
  17. Remove the memory from the computer and set the...

    Remove the memory from the computer and set the Jmem jumper to enabled. Could be just bad memory or it could indicate a mishandled jumper.
    ...
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    The LCD monitors did not have backlight in them...

    The LCD monitors did not have backlight in them in the Amstrad PPCs. Are you able to see a flashing cursor or text on the display when a light is above the screen? I hear there is a way to get a...
  19. I reseated the VLB I/O card onto another slot and...

    I reseated the VLB I/O card onto another slot and it works now. Weird that a slightly loose card can cause issues. Time to order new cache chips (256KB, 512KB, or 1024KB) for the system as it still...
  20. 486 build issues: 32K of 256K L2 cache and no FDD (VLB I/O card)

    I decided to rebuild my childhood 486 from the ground up, but I'm stuck with 2 different snags:

    1) FDD isn't working (throws general read error) and both drives I have work in other systems
    2) L2...
  21. Here's an in-depth description:...

    Here's an in-depth description: http://www.cpushack.com/UpgradeProcessors.html#evergreen

    Can be used in either a Socket 5 or Socket 7 board. I have an Evergreen 586 (AMD Am5x86WB-P75) that I got...
  22. ISA and VLB, I believe. And some cards require...

    ISA and VLB, I believe. And some cards require +12VDC in order for the cards to work correctly, EEPROM chips use +12VDC for power, and there are other things as well. I need to do more research on...
  23. Well, the board has low voltage (no -12VDC or...

    Well, the board has low voltage (no -12VDC or +12VDC coming from the PSU, although the PSU works in the Pentium 100 system) and it could be either the capacitors or a short somewhere.
  24. Almost similar to the board, except the IH4077H...

    Almost similar to the board, except the IH4077H has a UMC UM8498F northbridge that has the keyboard controller integrated, 2nd IDE port, and the jumpers are by the CPU and some of them are marked for...
  25. Some progress on the board. Bought contact...

    Some progress on the board. Bought contact cleaner and 320 grit sandpaper and the contacts for the I/O headers (floppy, serial, and parallel), along with the keyboard port (back of it) and the AT PSU...
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