Unsuccessful attempt to install 604e@350MHz onto Blizzard PPC

[stachu100]

Hi,
 
As an experiment I tried to put 604e@350MHz CPU onto Blizzard PPC.
 
Modification done:
1) PPC CPU replaced
2) Oscillator 60MHz with x5,5 which gives 330MHz frequency for CPU core
3) Removed original 2,5V voltage regulator
4) 1,9V/10A voltage regulator added ("classic" type soldered ad-hoc just to proof the concept)
5) +5V from power supply connected to 1,9V voltage regulator directly; without it I've measured 4,5V on the Blizzard PPC instead of 5V
 
As a results card is booting without RAM, but PPC is not recognized:
 
http://www.youtube.com/watch?v=YH99QWKycO4
 
With RAM installed I have RAM error:
 
http://www.youtube.com/watch?v=6H-huajbnVA
 
Pictures:
http://picasaweb.google.pl/stacho100...HzUnsuccessful#
 
So I assume that Blizzard PPC software inside flash memory cannot init 604e correctly (lack of proper routines inside Blizzard PPC flash) and/or logic on the board is not working with 604e because onboard CPLD IC's are not adopted to serve 604e.
 
Anyway as I'm not a genius :lol: I will drop the idea to modify Blizzard PPC hardware/software and just un-solder 604e and put standard 603e@300MHz.
 
But at least I tried.

[stachu100]

I was expecting such comment from you.
 

looking at the photos DO YOU KNOW WHAT YOU ARE DOING?
 
im not going to explain whats wrong but im going to leave it up to other users.
 
the card has every single right not to work.

[stachu100]

Almost...
Differences are well described in hardware specification for both processors.
 

Are the parts even pin compatible?

[stachu100]

Thousands of people are doing this every day; it's just the question of equipment, some knowledge and some manual skills.
Nothing special really...
 

Isn't the BPPC BGA... How the hell did you solder that!!

[stachu100]

Your post gave me an idea to try insert 2 SIMM's
 
I'm 100% sure that standard Blizzard PPC (without 604e modification) is working with only one SIMM; checked several times.
 
For example:
http://www.youtube.com/watch?v=SloiWlPkG18
 
But it's worth to try
 

Hm, I see you have only 1 ram card inserted. I always thought the 2 memory banks must be filled with 2 cards of the same amount, just as i have in my blizzppc.
 
x303

[stachu100]

Of course you know the answer; it's wrong PPC frequency multipier on picture.
I'am correct?
 

you first need to identify the problem with the modifcation ( yes i do know the answer ) someone sooner or later will post whats wrong.

[stachu100]

Out of topic:
Today the biggest tragedy happened for Polish Nation in the modern history.
I kindly ask all of you for one minute of silence.
 
['] ['] ['] ['] ['] ['] ['] ['] ['] ['] ['] ['] [']

[stachu100]

Blizzard PPC with 604e which I did is not working with two SIMM's (the same size SIMM's). Tried with different pairs of SIMM's. Sorry.
 
As my attempt was just simply trial to check if it is working without any adapter board and additional Blizzard PPC hardware/software modification (well, I did one connection on 604e processor as described in Hardware Specification to adopt 604e to 603e system) I can assume my trial as failure.
 
Some Amiga users from Poland declared to look inside flash dump to check what they can do here; if someone else is interested I'm ready to send this file by e-mail or upload this file somwhere.