Anyone know if a PB540/540c CPU card will work in a 520/520c?

#1 Sun, 11 Jan 2015 - 22:56 68kMLA

And if it does work, does it then allow the machine to run at the higher speed? Seems like it maybe ought to, but it also seems like the logic board in the 520 might not be capable of 540 speeds. Depends how cheaply they made the things, really.

#2 Sun, 11 Jan 2015 - 23:06 68kMLA

yes it will. it will boost the speed to the same as a 540, just with a crappier screen

#3 Sun, 11 Jan 2015 - 23:10 68kMLA

Good to know. Gives me options for my hunt for a PowerBook 5x0c model. Thanks!

#4 Mon, 12 Jan 2015 - 00:03 68kMLA

You can even use a 550c processor in any of those systems as well, that's what my 540c is currently running

#5 Mon, 12 Jan 2015 - 00:47 68kMLA

or a PPC processor which I have in mine. But I never hardly use it.

#6 Mon, 12 Jan 2015 - 01:54 68kMLA

i think

Paralelhooked me up with a PPC card for my 540c

#7 Mon, 12 Jan 2015 - 02:11 68kMLA

My PPC card has an issue though. When its cold/first turned on, its horribly unstable. Once it warms up a bit, its fine. I have two 520/540 machines. ones horrible condition, other is fine. Both do the same thing with the PPC card.

#8 Mon, 12 Jan 2015 - 02:38 68kMLA

Sounds like a bad solder joint somewhere, maybe?

c

#9 Mon, 12 Jan 2015 - 03:01 68kMLA

Paralel said:
You can even use a 550c processor in any of those systems as well, that's what my 540c is currently running

Hah! Got to find one first! Good trick if you can manage it. }:¬D

#10 Mon, 12 Jan 2015 - 20:02 68kMLA

uniserver said:
i think

Paralel

hooked me up with a PPC card for my 540c

Indeed. That was a very good trade. That system is the one currently running the PB550 daughtercard.

gsteemso said:
Hah! Got to find one first! Good trick if you can manage it. }:¬D

Yeah, the one I have is the first one I've ever seen for sale anywhere, had to order it from Japan directly. I really enjoy being able to run a full 040, only one they ever made for their portable line.