help with my EIA combo board

[Elliot B Dierksen]

>From article <638 at av8tr.UUCP>, by elliston at av8tr.UUCP (Keith Elliston):
> I recently posted about problems with my 7300 (av8tr), and have decided
> to take some of the advice.  So, I took out my 512K expansion boards (2),
> populated the EIA combo with 1.5, and thoroughly cleaned out the machine
> (the infamous Dust Bunny treatment).  I also made sure all my connections to
> the powersupply and disk were good.
> 
> One problem so far...  I don't know how to configure the jumpers on the
> combo board for 1.5 Mb.  I only get 0.5 out of it.  So, could some kind
> soul tell me how to configure the board for 1.5?  I installed 36 addtn'l
> 256k/80ns chips on the board.

There are jumper shunts on the board. They should be numbered 1 to 3 (don't
have one in front of me). No jumper = 0 MEM, 1 = .5Mb, 2 = 1 Mb, 3 = 1.5Mb.

that should do it for you. You may have other problems though if you have a
.5Mb RAM card, but that can be addressed with on of John Milton's HwNotes (I
have done this myself).

Hope that helps,

EBD
-- 
Elliot Dierksen        "It's such a fine line between clever and stupid."
                        --  "This is Spinal Tap"
Work) ebd at fang.att.com                                (407) 660-3377
Home) elliot at alfred.UUCP                              (407) 290-9744