Bad Caps in Everything

I just had a bit of a scare with my Audio Precision analyzer. The 2004-era Dell OptiPlex GX270 which drives the AP hardware decided it would refuse to power up – just flashing the “ON” light for a fraction of a second, then back off again. Since that analyzer is pretty central to what I do in the shop, this was a major problem.

It’s not the easiest piece of gear to get running, either. If you have an APIB interface card, the legacy APWin software will work in Windows XP – but if you’re using the parallel port redirect VXD, you’ll need Windows 98 because VXDs aren’t allowed on any later OS.

A quick inspection inside the old PC showed the problem immediately…bad caps on the motherboard.

DSC_0035 (3) DSC_0033 (3)

Fortunately, Dell made a large number of these OptiPlex GX270s. I picked up another one on eBay, swapped the hard drives, and fired it up. DSC_0040

Fortunately, it worked the first try! Everything is as it should be. I’ll probably make an attempt at replacing the capacitors on the old motherboard, just to ensure I have a backup PC around if there’s any trouble, but for now the problem is solved.

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This entry was posted in Computers, DIY, Electronics, Test Equipment and tagged , , , , . Bookmark the permalink.

3 Responses to Bad Caps in Everything

  1. jwk says:

    Maybe I should stockpile a few more in storage….

  2. David DeRosier says:

    You were lucky to find another computer for a quick fix. Everything seems to be made in China now days and most of the Equipment is only designed to work for 5 years.

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