Grid 1520

Hi crew. Question about a Gridacase 1520. Is anyone familiar with these laptops? This is a 286, really good shape. It won't boot, dead as a doornail. The guy at the thrift shop told me it was working when it was brought in the day before, now I see that two (or one) chips are missing from under the flap in the top left right above the keyboard. I figure they were lifted between dropoff and my buying it. Any ideas if these chips, which I think are application roms, would prevent the thing from booting? If so, is there such a thing as a replacement available from someone here or elsewhere? The thing must have been the first Toughbook or something, and I'd love to see it working. Thanks for any info anyone can share. (does anyone still need a gmail invite? I have lots. ) Brian Mahoney