Re: Some questions about a2 upgrading

[Roy and/or Janet Miller <millers@inetnebr.com>]

**** **** wrote:

> Not exactly certain you'd need to ignore it... we'd run the vga card as if
> it were looking over the shoulder of the built in video.

I'm not a tech, so I wouldn't know what is possible on the //e.

>
>
> >>     And of course, there is the question of how to beef up the power
> supply.
> >> I have noticed that several vendors sell aftermarket power supplies, are
> >> these refurbished, or even new? Are any of them enhanced in any way?
> >
> >Jameco sold/sells a new power supply that provides twice the wattage as the
> >original II powersupply. I have one in my machine (will all slots filled,
> >including a 20 meg hard drive, Transwarp and one meg RAMWorks III, I need
> it!),
> >it has slots on top to allow the heat out, so there is an increased need
> for a
> >fan or to run with the lid off.
>
> They have internal connectors for drives then?

No, just the normal IIe connector. I understand that you can alter a PC power
supply to use with a II, perhaps that would solve your need?

For one, could externally overclock localtalk to 1mps, could also

> switch... what this does, is allow everyone to speak simultaneously,
> increasing bandwidth. A few 65c02's (since I'm already having to learn
> 6502/816 asm anyway) would buffer each port, and negotiate among themselves
> where to send it.

I understand that the IIe Workstation card (I have one) uses a 2 mhz 6502 (and a
RAM buffer) to handle the AppleTalk network, since the II's own 6502 is too slow
to do that. Increased bandwidth would leave the WorkStation card in the dust,
wouldn't it?

Roy