Subject: Re: New Mystery Boards From: nparker@ssil.uoregon.edu (Neil Parker) Date: Mon, Oct 26, 1998 16‚25 Message-id: <7130ci$1t2$1@pith.uoregon.edu> In article , Labelas Enoreth wrote: }Hey, don't mean to cut in, but I have some mystery card of my own... }Listed chips on the board which caught my attention... }*'Little Blue Limited' "PC Transporter" Applied Engineering }Has passthrough cables onto the speaker, keyboard, and modulator (?) pins }on the motherboard of the IIe. }It's got, let's see, a NEC v30 8710WK, I9591 V6T7737-6009 745V, and a }VLSI 8835AZ X1001I VC2849 as chips which catch my attention, along }with other miscellanous PROMs and stuff. 19-pin female connector on rear. }(This is...a PC Compatibility card for the Apple IIe ...any idea on }where one can find an external 5.25 which attaches to it? or the software }for it?) It is indeed a PC compatibility card. It's basically an XT on a board. }*ALS Z-card }Z80B cpu, 10 socketed PRAMs, 4 DIP siwtches }*ALS Z-engine }Z80B cpu, 3 socketed PROMs, 5 soldered }(looks like perhaps a lower-end version of the first I guess) } }Any idea on these? I'm assuming the Z80 cards are for CP/M, since that's }like the only good use for a Z80 in a IIe that I can think of...? But no }software, so dunno what they do. (can I use a CP/M boot disk from, say, }another CP/M card and have it work with them?) Usually, with Z80 cards, you can't use any other card's boot disks. But one or both of the ALS cards might be a clone of the Microsoft Softcard, in which case the Microsoft boot disks would work with it. }Oh, hey, got a mem board as well, 32 ILM41256AP-12 chips }I saw 256, but there's no way that it is 8192kB for a IIe, right? What am }I misreading... More likely you have 1 MB. The number "41256" looks like a 256K x 1 chip-- i.e. it has 256K *bits*, not bytes. So effectively you have 32K bytes per chip, for a total of 1024KB, or 1 MB. - Neil Parker -- Neil Parker, nparker@ssil.uoregon.edu, nparker@axis.llx.com, http://axis.llx.com/~nparker/ (Note new addresses and home page!) Unsolicited commercial e-mail is not welcome, and will be discarded unread.