Wanted: Blizzard PPC in lowest config: 040LC@25MHz PPC@160MHz no SCSI

[delshay]

removed posting.

[delshay]

WOW! Great job!!!!!!

You should consider on helping others to fix their Blizzard cards for a fair price.
Your work can be considered a piece of art.

Keep it up!

after buying many faulty Blizzard cards iv found not all faults was on the CPU. in most cases the CPU turn out not to be faulty,i only found one card that had a faulty CPU and in another the CPU had a cracked joint.

but i have found faults in places where you think thats impossible.

i have rebuilt 2 cards from scratch one i had to add the complete SCSI

some companys will not touch old PCB because of the age of the card,and doing BGA re-work if something go`s wrong you must know how to repair it.

ACUBE was doing CPU upgrade but if the CPU turns out not to be faulty and the fault was somewhere else on the card how will the card be returned (with new or old CPU) with the card still not working.

[stachu100]

after buying many faulty Blizzard cards iv found not all faults was on the CPU. in most cases the CPU turn out not to be faulty,i only found one card that had a faulty CPU and in another the CPU had a cracked joint.
 
but i have found faults in places where you think thats impossible.
 
i have rebuilt 2 cards from scratch one i had to add the complete SCSI
 
some companys will not touch old PCB because of the age of the card,and doing BGA re-work if something go`s wrong you must know how to repair it.
 
ACUBE was doing CPU upgrade but if the CPU turns out not to be faulty and the fault was somewhere else on the card how will the card be returned (with new or old CPU) with the card still not working.

 
Thanks a lot for this info!
People from Poland are asking me to repair their broken cards, but my answer was always that repair is not possible; what I can offer is to replace CPU and if this will not help just to look around to find unsure solder joints, broken cooper tracks, defective trough-holes in PCB or even faulty eeprom.

I agree, repair of such cards is like lottery: prize is high, but probability to win is significantly lower than 100%
 
We are not David Copperfield
 
And small update:
I've managed to run PPC at 330MHz (5,5x60MHz):
 
http://www.youtube.com/watch?v=SloiWlPkG18
 
I'm not going to test it at 360MHz, however as card was stable for 1,5h under AOS3.1/4.0, so I can say that it's possible.
And I'm using standard "light" A1200 power supply.

[delshay]

Thanks a lot for this info!
People from Poland are asking me to repair their broken cards, but my answer was always that repair is not possible; what I can offer is to replace CPU and if this will not help just to look around to find unsure solder joints, broken cooper tracks, defective trough-holes in PCB or even faulty eeprom.

I agree, repair of such cards is like lottery: prize is high, but probability to win is significantly lower than 100%
 
We are not David Copperfield
 
And small update:
I've managed to run PPC at 330MHz (5,5x60MHz):
 
http://www.youtube.com/watch?v=SloiWlPkG18
 
I'm not going to test it at 360MHz, however as card was stable for 1,5h under AOS3.1/4.0, so I can say that it's possible.
And I'm using standard "light" A1200 power supply.

can you download the FFTdemo and do a test and upload please state what OS you are using... link is in this thread

I also have 3 spare 300Mhz CPU so any UK users that needs a upgrade can contact me.

[Framiga]

interesting thread/project! keep it up the good work. Congratulations to both of you

@delshay

absolutely right about not beeing the CPU at fault (most of the times).

As soon as i get some free time (close to retiring), i'll try to get a broken CSPPC and some 604e (no clue how ATM) and attempt the "miracle"

[Bamiga2002]

What would be reasonable speedwise to run this 300Mhz processor?

@4.0x75Mhz bus speed
@4.5x66,666Mhz bus speed
@5.0x60Mhz bus speed

all equal to 300Mhz but what kind of memory will cope with a specific bus speed setting and allow to disable precharges? and how about 5.5x60Mhz (=330Mhz) and its memory settings in bootmenu?

[delshay]

What would be reasonable speedwise to run this 300Mhz processor?

@4.0x75Mhz bus speed
@4.5x66,666Mhz bus speed
@5.0x60Mhz bus speed

all equal to 300Mhz but what kind of memory will cope with a specific bus speed setting and allow to disable precharges? and how about 5.5x60Mhz (=330Mhz) and its memory settings in bootmenu?

i spent a lot of time and money researching this over the last 3 years,i was hopeing  to get some return on my investment by doing upgrades and repairs.,but it now looks unlikely now so i have removed some of my notes from this thread.

the answer to your question mite be one the link below and that is not it's top-end speed if i feel i need extra horsepower i can step it up. iv seen the benchmark of what it can do.

http://www.amiga.org/gallery/index.php?n=3039

[CLS2086]

Hi,
how much to replace my working bppc 603e-210(@224) by a 300 one ?

[Karlos]

Holy cow, those are some bad assed blizzards :-o

Would there be any improvement (aside from the obvious speed up of the 68K processor) if you ran the 68K part from the same clock crystal as the PPC? I've often wondered about that. There must be some wait states / latencies involved when managing two different FSB speeds into the same memory.

[stachu100]

Well, you are probably right.
But 60MHz is the fastest PPC bus settings with standard RAM SIMM's.
I prefer stable work than additional 10% of power and unsure stability.

[Boudicca]

Wow Im shocked to here some of thought this was difficult. Just need either a reworker station and some solder paste, steady hand and plenty of staring at the board with a magnifying glass

However I am quite happy popping atmel's and tsop flash chips for 10 a penny motherboards, but ppc....u get one shot and if you cook the chip back to low or no speed.

Anyone try it with a infrared Heat station, there the in thing for BGA chips ?

[delshay]

another problem has been found and removed,this will improved performance and set another new record for classic amigas PPC.

i don't know if morph OS will do a small update but i will contact HYPERION and push for this update as i feel it very important.

if morph OS team still support the classic amiga please contact me via pm i think it will be a small rewrite of the software or maybe its already in the software as i never tried morph OS.

i will be doing upgrades in late march,i just need to find and fix the last remaining problem on the A1200 motherboard.

all Blizzard PPC cards upgraded by me will get the FULL upgrade.

[tone007]

Anybody ever play with this kind of stuff on the CSPPCs?  Same idea?

[StormLord]

anyone knows where to find a ppc 740?

I have tried before to change the 603 with an 740 with mixed results.
I manage to run the amiga with 740 and even got some syspeed benchmarks, but it was unstable like hell. and I decided to revert it back to 603

it was some years ago, maybe 6-7, but I still have the syspeed module

[Sir_Lucas]

That's very interesting. Could u be more specific as to how you managed to swap 603 with 740? Was it just a simple soldering? Or did you have to do anything else? I'm quite sure that both Stachu100 and delshay could benefit a lot from your experience.

Maybe the the problem of non-stability was the right choice of memory. Stachu100 mentions a lot about it.
Anyway, that idea of putting 740 into BlizzardPPC or CSPPC is absolutely great!

[stachu100]

Anybody ever play with this kind of stuff on the CSPPCs? Same idea?

I'm going to try to put 604e 300MHz into Cyberstorm and hope to have 330MHz speed running stable with standard cooling.
Proper processors are one way to me already
I will keep you posted about Cyberstorm upgrade progress.
 
I have no intention to experiment with other processors type as it might be unstable/impossible/kill the processor/kill CSPPC board/kill both.
 
I don't care to kill the processor, but I don't want to sacrifice my CSPPC for sure! :afro: