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Re: mb - xt - help

Interesting board ;-) There are numbers in the sockets, I can see 8087 (Coproz)and 27256 (Bios). Can you read the others? Others might be 8259 Programmable Interrupt Controllers 8237 Direct Memory Access Controller 8254 Programmable Interval Timer 8042 keyboard controller DS12887A RTC You can try …

Re: XT running

Um, I don't mean to be ignorant or rude or something like that, but what's the matter with flash memory (why no EPROM) ? A few notable exceptions aside, I've rarely had serious trouble with classic UV-EPROMs so far. :confused: Dont know, because you need an additional UV Eraser? Indeed ;-) And dont …

Re: XT running

After beeing slow i just noticed now that i need a EEPROM for my nic since it isnt really standard on nic cards but the dip socket exist, just that it is emty hehe Now lets see how long it takes until it arrives so i can try my nic cards :) Indeed ;-) And dont forget the programmer...you cant …

Re: XT running

Thanks Jesolo! The other missing part is labled "FB13". This does not seem to be a capacitor but a Ferrite bead? Maybe I can desolder a one that looks the same like FB12. But dont know how to figure out the characteristics, have to google. And my multimeter can only measure resistance... Will see 😀 …

Re: XT running

Yesterday I was in my storage room and inspected 4 old Cherry AT-Keyboards: 3 of them had the XT/AT switch on the back. You usually dont need a special XT keyboard. Regarding the floppy discussion I found this in the PCXTBIOS3.0 Package http://www.phatcode.net/downloads.php?id=101 The Multi-Floppy …

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