Image Map Image Map
Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17

Thread: Tandy Sensation: Still considered valuable/great find? What made them special?

  1. #11
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    Quote Originally Posted by Fanatik View Post
    Let me know if you want to part ways with that Sensation II.
    I'm not actually that attached to it, just seemed like a heck of a deal. I think I like my 2500SX/20 more. Let me tinker around with it for a bit.

  2. #12
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    Powered Sensation on, it fails to boot. FLoppy doesn't seek, hard drive and power lights stay on. CD-ROM ejects and self-tests. No beeps are heard.

    A little disappointing.

  3. #13
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    The CMOS battery had very light corrosion, replaced it, no change. Motherboard is super clean, I'm not at all sure there's a problem with it. I'm hoping it's the power supply; it seems to be a bog-standard AT-style powersupply so I'll check voltages tomorrow and swap it out with a known good.

    Any other suggestions? I've pulled all the expansion cards, and disconnected the Overdrive chip and reset jumpers to use onboard cpu with no change.

  4. #14
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    Power supply is providing all the expected voltages on all the expected places, so it's not likely to be a PSU issue.

    I pulled the EEPROM which is an M27C1001 and have dumped it and attached here, hoping to see some corruption; system behaviour is identical with or without BIOS installed.

    Bios is receiving +5v on vcc. My nice multimeter is packed up somewhere, as soon as I can dig it out I'll check for frequency on ISA slot. Motherboard itself seems absolutely perfect, so this is very confusing to me...
    Attached Files Attached Files
    Last edited by keenerb; January 8th, 2019 at 05:56 PM.

  5. #15
    Join Date
    Sep 2008
    Location
    Walled Lake, MI
    Posts
    3,764
    Blog Entries
    6

    Default

    Quote Originally Posted by keenerb View Post
    Power supply is providing all the expected voltages on all the expected places, so it's not likely to be a PSU issue.

    I pulled the EEPROM which is an M27C1001 and have dumped it and attached here, hoping to see some corruption; system behaviour is identical with or without BIOS installed.

    Bios is receiving +5v on vcc. My nice multimeter is packed up somewhere, as soon as I can dig it out I'll check for frequency on ISA slot. Motherboard itself seems absolutely perfect, so this is very confusing to me...
    You may want to do a thorough 'eye ball' inspection of the motherboard. Look for any caps that seem to be bulging or other anomalies like a burnt surface component.
    Surely not everyone was Kung-fu fighting

  6. #16
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    Quote Originally Posted by Agent Orange View Post
    You may want to do a thorough 'eye ball' inspection of the motherboard. Look for any caps that seem to be bulging or other anomalies like a burnt surface component.
    http://www.vcfed.org/forum/showthrea...on-not-posting

    That's the sum of my troubleshooting so far.

    I'm thinking either a memory compatibility issue or RST line issue, both of which I'll be testing out this evening.

  7. #17
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    502

    Default

    Got the Sensation working perfectly, hard drive even works. As far as I can tell, someone played two games of Duke Nukem 3D full version on it and then put it away, WIndows 3.1 was still factory default installation.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •