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1996-09-26
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29 lines
Short: Hardware hack to disable A4000 IDE port
Author: sriddle@ionet.net (Sean Riddle)
Uploader: sriddle@ionet.net (Sean Riddle)
I've been using this hack on 2 A4000's for several months (since KS upped
the delay time for IDE drives).
Get a 40-pin female IDE header and wire a 5K resistor between pins 3 and 39,
and between pins 5 and 39.
Pins 3 and 5 are the high-order IDE data bits. Pin 39 is the IDE LED
connection, which is tied high. This hack ties the two high-order IDE
data bits high, making the ROM immediately skip looking for a drive.
Plug the header onto the A4000 motherboard IDE connector, making sure it
is on correctly.
--
Sean (sriddle@ionet.net)
<a href="http://www.ionet.net/~sriddle">Please don't hurl on my URL!</a><p>
============================= Archive contents =============================
Original Packed Ratio Date Time Name
-------- ------- ----- --------- -------- -------------
684 412 39.7% 06-Jun-95 16:26:10 no4000ide.readme
-------- ------- ----- --------- --------
684 412 39.7% 07-Jun-95 01:30:14 1 files