6 May
2017
6 May
'17
8:34 p.m.
link: http://www.ebay.com/itm/272660815175 This board had a few broken traces on the bottom -- looks like it was stacked up with some other boards and got scraped at some point. After fixing the traces, the board still wouldn't come up, and the POST card showed a bad DMA controller. Replaced the DMA controller with a 40-pin machine pin socket and NOS Siemens 8237A. Fully tested as described in the listing. This board has 1 MB (640K usable) of 256K x 4 DRAM installed, plus parity chips. Interestingly, it supports 16 and 20 pin DIP RAM, as well as ZIP RAM. Fully assembled and tested XT-IDE rev 3 boards are available for bundled purchase with this board -- your XT-IDE will be tested in this exact board. Thanks, Jonathan