>That doesn't mean anything. As far as I know, such utilities have no
>way of determining whether a given 2400 is CardBus enabled or not. The
>original 2400 has all the CardBus hardware; Apple just disabled
>detection of 32-bit CardBus cards via a jumper or two on the
>motherboard (apparently because they discovered compatability problems
>with certain cards late in the development process). Tattletech, etc.,
>can't tell whether the disabling jumpers are present, so no matter what
>kind of 2400 you have, such utilities will tell you your computer is
>CardBus capable.
Indeed, while inspecting my dead 2400's logic board prior to shipping it off to
DT&T yesterday, I noticed several small yellow wires (yes, wires) soldered in
to a few points on the board, including the TI PCMCIA controller chip, and a
couple of the pins on the card cage interface itself. These were added by a
human after the board was assembled, so we can assume they are a hasty measure
to disable Cardbus. It'll be interesting to see whether the replacement logic
board happens to lack such jumpering (and thus, perhaps, support Cardbus).
>To put it another way, I haven't seen a single report of any utility
>which detects CardBus/not-CardBus telling a 2400 owner their machine
>did not have CardBus. Not even one.
I strongly suspect that the Tattletech (or whatever) report is based on the
version of the Card & Socket Services software installed with the OS or
enabler. That is, C&SS 3.0 is capable of supporting Cardbus speeds and data
widths *if the supporting hardware is present*. The PCMCIA controller in the
2400 is theoretically capable of Cardbus support, but it's essentially
wired incorrectly for it, at least on early 2400 logic boards.
I'd be interested to know if any verified non-compliant 2400's have those
wires, or verified compliant ones lack them. You can see some of them on the
top of the board merely by removing the top shroud and keyboard (looking at the
bottom of the logic board where the PCMCIA cage attaches is by contrast a bit
of a project, and not for the faint of heart).
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