On 06/23/2011 08:14 AM, Steven Hirsch wrote: > I picked up a two-port parallel card for my Lisa 2/10. Unfortunately, > it fails the POST diagnostics with error '92'. The system does > correctly identify which slot it's in, FWIW. > > Does anyone know what the system firmware is poking around for? Is it > asserting a checksum test on the card's EPROM? Checking for an > interrupt response? > > The label covering the parallel card EPROM erase window is long gone, > so I'm wondering if it was left in the sunlight and partially erased. > > Does anyone have an image of the EPROM?

That's a ROM checksum error. Do you see the ports in the boot menu? Even if the ROM is bad, as long as it's good enough to present the card ID to the Lisa, you might still be able to make use of the card. The ROM is really only used for booting. That and providing icons and an ID to the ROM and OS. So if the ID is still there, you'll likely still be able to use it under LOS/MW+ anyway.