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    mikey99

    5160 XT motherboard problem

    One of my XT's started misbehaving recently. When I power on, it beeps continuously,
    memory counts to 256KB, then reboots. I removed all memory chips and moved bank 1
    chips to bank 0, same...

    mikey99 Today, 05:10 PM Go to last post
    rittwage

    I worked on a couple of these systems in the...

    I worked on a couple of these systems in the early 90's. They used what looked like thick 9-pin serial cables in a series-bus configuration. One card plugged into the previous and out to the next. I...

    rittwage Today, 05:09 PM Go to last post
    Formulator

    Please see the link below for images. In the...

    Please see the link below for images. In the end, the KF/HXC path did not work out. I used a TEAC FD-55B 360K FD to dump the images via IMD. Strangely enough, I have a P3 system that can...

    Formulator Today, 05:02 PM Go to last post
    Chuckster_in_Jax

    @ 3:44...

    @ 3:44 off to the right, looks like a IBM 9595. @4:48 under the telephone an HP Nimitz keyboard.

    All the camera shake made me seasick. Really, I'm nauseated after watching that video.

    Chuckster_in_Jax Today, 04:54 PM Go to last post
    Xarpi

    Hi, I actually just now looked into the...

    Hi, I actually just now looked into the Diagnostic ROMS, seems I could use some for some of my other machines. Like 5150, 5155, 5160, 5170. So I guess that makes it 10 ROMS. If we use the OTP 27c256,...

    Xarpi Today, 04:54 PM Go to last post