Its the 040 processor card, commonally found in Quadra 650 or Centris 650,
sometimes It also can be found in IICi's or IIcx's.  Had several years ago
:(

On Thu, Jul 23, 2009 at 6:07 AM, Tim Martin <[email protected]> wrote:

> I still have my first mac - a Quadra 800 which I upgraded with what I
> believe to be the same card - it doesn’t plug into the 68040 socket but the
> single unique PDS slot. My understanding is that the card was built by
> Daystar with Apple’s collaboration and was then subsequently sold by Sonnet
> Technologies - who was my supplier.
>
> For more details see
> http://lowendmac.com/quadra/power-mac-upgrade-card.html
>
> Tim Martin
>
> 2009/7/23 Magnetic Control Industry <[email protected]>
>
>>
>> I have the original box for my Quadra 840av and on the box is a red,
>> circular sticker stating "Ready for Power Macintosh Upgrade". This is not
>> refering to a Logic Board swap but to the Apple Power Macintosh Processor
>> Upgrade; the 601 that plugs into the 68040's socket. Does anyone have any
>> knowledge about upgrading the 660av and 840av with this specific upgrade?
>>
>> -Boomquesha Brown
>>
>>
>>
>>
>
> >
>

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