Hi all!
Recently I get that weird problem with multiple Pegasos2:

The boot sequence of the mobo stops after keyboard blinks...
Sometimesbin the past thatvhappens too yr with an hard reset I solved the issue...

Now that wasn't possible the boot sequence stops always after the keyboard blinks instead of turning on the monitor it stays off(on stand by) and no other activities will happen..
Only i can ear hdd and Dvd checks...
I also tried to put out everything (also cpu board)clean with compressed air everything (also mobo and connectors) waited some hour and than remounted everything but nothing changes...

Any idea on what's the problem?

Thank you!

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

@Tuxedo

The pegasos2 is affected by 4 hardware problems % is the probability

you can have
1)The Chipset need the reballing (50%)
2)The cpu need reaballing e/o swap the capacitors (20%)
3)The capacitors on motherboard need be changed (10%)
4)the psu need to be changed (40%)

_________________
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@tlosm

Ok but psu can be the problem also if system starts?

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

@Tuxedo

yes ... i had a pegasos2 who was affected by "reballing problem" it was working only after some resets .
my friends of retro computing group say that is a problem who affected this chipset series..
if it need a bga reworking you have to find some one who can did this jobs... "enrico" but you know he is really occupy and will need much time for do this.
my friend linears have success to fix my motherboard but im waithing him from months because i have here 2 pegasos motherboard from another friend ... and still waithing :(

Last edited by tlosm on 29-Nov-2014 at 09:47 AM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
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#nomorea-eoninmyhome

@Tuxedo

Those were the symptoms before my Pegasos 2 mobo stoped working as well. Same as the ones that you describe on your first post.

I am the friend who was mentioned on the post above :) Also waiting for the right guy to do the job on those dead mobos. Thanks tlosm for this. He is making the connection. :)

I got high hopes that something could be done, but it needs patience especially if the people capable on those fixes are bussy.

The cases that tlosm describes are correct. Perhaps an affected marvell Northbridge chipset also.

Last edited by Morphix on 29-Nov-2014 at 05:38 PM.
Last edited by Morphix on 29-Nov-2014 at 05:35 PM.
Last edited by Morphix on 29-Nov-2014 at 05:34 PM.

_________________
Peg1, Peg2, Efika,
Amiga 500, Amiga 1230,
Amiga 4000PPC,
Sam 440EP, AmigaOne XE,
MacMini PPC, PowerMac G4, G5

@Tuxedo
Hook up a serial (null-modem) cable to the board and see what the early OF console says. If something is wrong during the init phase, your Pegasos will probably try to tell you what's wrong. See an example here. In my case, the old memory module I had became faulty. Tried to clean the connectors on the module first (they were slightly oxided), but that didn't help, so I replaced it and the box works again like a charm since.

Last edited by Chain-Q on 30-Nov-2014 at 01:05 PM.

_________________
MorphOS, classic Amiga, demoscene, and stuff
"When a bridge is not enough, build a Viaduct!"
"Strip the Amiga community of speculation and we can fit every forum on a 720k floppy" (by resle)

@Chain-Q

Yes true my old one gave this problem too but was the smallest problem the chipset was the worst :(

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

@Chain-Q

Hi,
I've 2 1gb ram.modules and tryed to.use only.one of them.and.or changing position...
So.was higjly probable that wasn't a ram problem.I think...

Last edited by Tuxedo on 30-Nov-2014 at 09:31 PM.

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

@Tuxedo

if you reset many times ... the pegasos start working?
try to pull of and pull on the lan cable ..
if with this trick after some try boot , for sure is the chipset.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

@Chain-Q & tlosm

MAgically I solved the arcane!
Now I'm on my Peg2 machine up and running!

I tryed for last attempt a 512mb ram bank I've at home and it started at first boot!!!!!! I tryed to use the other 1gb module I put out togheter the 512mb and dont boot...put another 512mb I've in home and now I'm running AmigaOS4 with 1gb of ram...

I think 1gb was rather enough for the moment so I'll stay in that situation hoping that it works for now on...

But ws really weird that two 1gb ram bank was broken togheter...no?

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

@Tuxedo

Dont belive too much ... if it is a reballing problem it do this jokes...
My pegasos 2 was warking for one day and the other day not ... this is because the soldering under the chipset collapse and crack but with temperature and voltage in certain condition they will magically join another time for collapse again when become cold .

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

@tlosm

Kind of a funny thread this. wtf is "reballing" as ive never heard of this problem on peg2.

As ChainQ said what does the Ikarus console give on serial output?

And lastly why dont you guys contact bplan they are still a legit company and will service peg2 afaik.

@realize

the reballing is the same job stachu do on cyberstormppc , is the bga rework.
many pegasos die because of cpu module, if it is the cpu module there is impossible turn on it and bplan fix only the cpu module and not the motherboard .
i had been contact them for my dead motherboard (reborn thanks to linears) and they say that can do nothink if it is the chipset.
For bga rework is needed a special soldering station not everyone have one of this big tool at his home ;) .

This kind of jobs are made today expecially on modern laptop or console (xbox 360) because this loose more simple the sphere soldering on cpu/gfx chip/chipset compared with standard machines.

Last edited by tlosm on 01-Dec-2014 at 09:42 AM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

BGA = Ball Grid Array.

@Tuxedo
Quote:

Magically I solved the arcane! Now I'm on my Peg2 machine up and running!

Awesome. Really. Imagine if the machine could even tell you it was a broken RAM module! For example through the serial console! How cool would that be!

Quote:

But ws really weird that two 1gb ram bank was broken togheter...no?

Well, who knows. Actually, using 2x1GB is not even supported by the Pegasos II, sadly, unless you have the very latest Rev 2B5 board with the latest firmware (20051216 or so). Just like using two differently sized modules is not supported either.

I have older Pegasos IIs (Rev 2B1 and 2B3), and never had them running stable with more than 1GB RAM. If it boots up at all, it crashes very soon...

_________________
MorphOS, classic Amiga, demoscene, and stuff
"When a bridge is not enough, build a Viaduct!"
"Strip the Amiga community of speculation and we can fit every forum on a 720k floppy" (by resle)

@tlosm
Stop this "most Pegasos IIs need a reballing" nonsense already. Indeed, it's decade old hardware, so anything is possible, but it's definitely *not* a problem which affects large number of Pegasos IIs. I'm supporting Pegasos II users since 2004, which means literally dozens of boards going through my hand each year, and never saw a board which had this kind of problem. In fact, only one was which was completely dead, but that turned out to be a Flash ROM issue and was fixed by bPlan. The rest were mostly other component or CPU card issues, which is indeed much more fragile than the board itself.

Comparing it with the XBox360 is silly, since the Pegasos II is pre-RoHS technology, which means soldering getting cracked by heat issues is much less likely, because the older lead-based soldering is not that rigid. Additionally, the chipset doesn't produce much heat either. So unless your Pegasos II was severely mishandled and got bent or stressed in any other way, it's unlikely to ever develop a problem with the chipset soldering.

_________________
MorphOS, classic Amiga, demoscene, and stuff
"When a bridge is not enough, build a Viaduct!"
"Strip the Amiga community of speculation and we can fit every forum on a 720k floppy" (by resle)

@Chain-Q

Quote:

Stop this "most Pegasos IIs need a reballing" nonsense [...] it's definitely *not* a problem

Uhh, thanks, I almost get nervous.

Quote:

unless your Pegasos II was severely mishandled

I confess that one time mine is accidentally dropped from the car to the ground. Even the CPU card is slipped from the slot. It took my breath away surely. After carefully put it together and turned it on a big stone rolled down from my chest. It is still working. :)

Edit:
However I had some problem - independent from the above - which turned out to be a contact problem at the PSU-motherboard connector which was very loose with some PSU.
The phenomena was that it needed several reset for a successful boot.

Last edited by Lazi on 01-Dec-2014 at 10:48 AM.

@Lazi
@ChainQ

... Every one have different experience, mine was need the resoldering of the chipset ...your was need something different ...
The chipset was need exactly the same job need for the CybersormPPC on the 604e side (if you know what im speaking about) when the board die.

My friend Genny_flink if you know who is and what he did for example change couple of capacitors on his cpu module (r2) and do something else on the board for made it run and be stable again

Now stop be nevervous and please not dring coffee for next couple of days for calm down

Last edited by tlosm on 01-Dec-2014 at 11:26 AM.
Last edited by tlosm on 01-Dec-2014 at 11:23 AM.
Last edited by tlosm on 01-Dec-2014 at 11:23 AM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome

@Chain-Q

mmm...
I'm testing right now the new setup and dont gets a real big stability atm but have to do some more tests...however not so bad at all...
I'm also testing 512mb ram in one slot now that dont tryed yeterday to see if, maybe, was only one slot the problem...

I'll write more in next days...maybe I'll look also for other 1gb ddr400 modules to try.

PS I ever used 768 mb and 1,5 and 2 gb without problem I've a 2b5 mobo...


EDIT: sorry for question...I ver used null-modem output how-to? also...theres a way to look at the console output log from AmigaOS4 or from console itself(and plz tell me a pause command while iutputting) breaking boot?

Thank you!

Last edited by Tuxedo on 01-Dec-2014 at 09:01 PM.

_________________
Simone"Tuxedo"Monsignori, Perugia, ITALY.

@Tuxedo

Just plug the pegasos2 on the pc ... turnon the pc open a terminal software and set the baud at 115000 after turn on the pegasos on the pc you will see the result.
No os is needed... just openfirmware

Last edited by tlosm on 01-Dec-2014 at 09:42 PM.

_________________
I love Amiga and new hope by AmigaNG
A 500 + ; CDTV; CD32;
PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB;
MacBook Pro Retina I7 2.3ghz;
#nomorea-eoninmyhome