![]() ![]() So, after reading some information about it on a forum thread in here (thanks everyone), I just imagine that the delay line chips, or DRAM chips are not working as they should. ![]() ![]() I started placing the chips one by one, also moving the switch (there's no jumpers in this board), and nothing, the exact same results. I also removed the two 16 pins D41256C-15 DRAM NEC chips, and four 18 pins D41464C-15 DRAM NEC chips. If I remove both RAM from the sockets, I got: Ok, I'm going to throw as much information as possible, because I have here a rare IBT XT 286 that refuse to boot, and just shows the following numbers: ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
March 2023
Categories |