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Offline Boot_WBTopic starter

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BPPC 603e+ weird boot problems
« on: April 27, 2005, 01:35:55 AM »
Hi, just got a 603e+ (160MHz, overclocked to 210). Booting from an IDE hdd into OS3.9 with warpOS/bppcfix.
Anyhoo, the issue is this: on first boot the amiga freezes - does not even reach early boot startup menu (both mouse buttons), or allow access to PPC config menu (Esc).
I then give it the 3-fingered salute and everything boots ok - usually. Sometimes the background (and the icon text background) are a dark olive colour.

Thought it may be a firmware issue so have just installed 2001 040 firmware, but still have the same problems.
Never had any problems like this on my BPPC 603e/040/ with no SCSI - so is it a conflict between trying to boot from SCSI bus??
Or is it an overclocking issue?
Can't see it being a flashrom issue as it boots fine after a 3-fingered salute. PPC seems to be ok as I can still run DoomWOS.

Hardware profile:
A1200 Rev 2b mo'bo in customised server tower. Blizzard 603e+; 4x buffered IDE adapter; Mediator 1200 PCI busboard.
(((BPPC has no scsi cable, with 1 x HP 128mb 60ns parity SIMM)))
(((IDE bus has 8 gig IBM primary master, 4x4 NEC cd changer secondary master)))
(((mediator has fast ethernet and soundblaster 128 - awaiting voodoo 3))))

Suggestions please....
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Offline x56h34

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Re: BPPC 603e+ weird boot problems
« Reply #1 on: April 27, 2005, 01:39:28 AM »
The PPC card is not getting enough power in order to warm up and work at cold boot.

This could be due to a very power hungry PPC card or the weak CPU slot thin connector traces.

Solution...usually feeding +5V to the PPC fan connector solves the problem (the PPC fan should be separately powered).
 

Offline Boot_WBTopic starter

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Re: BPPC 603e+ weird boot problems
« Reply #2 on: April 27, 2005, 02:08:06 AM »
Good call that person - just ran a lead from hard drive power to PPC header booted first time, then realised I'd forgot to replace memory.  
After replacing the memory had the same issue.

Looking at the PPC fan and it's a 12V fan - is there any reason not to put +12V to the header on the PPC board?

Thanks: Now many steps nearer to solving the problem, and many steps back from believing I've bought a lemon.
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Offline Boot_WBTopic starter

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Re: BPPC 603e+ weird boot problems
« Reply #3 on: April 27, 2005, 03:32:58 AM »
Errrmmm.... anyone reading this thread take GOOD NOTICE.  Do NOT run 12+ V into the fan header as this will result in one of the worst smells imaginable - the smell of a component burning out on your precious BPPC board.  
Ar5e, 5h1t and f*#k.
Hoping it's just a single component burnout rather than frying the whole board, but at the moment no boot, no nothing.
Know anyone who can identify individual resistors on the BPPC board?  I know exactly which one has burned out, just don't know the rating of it.
Think I'll go get some sleep now.   Ar5e.....
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Offline Framiga

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Re: BPPC 603e+ weird boot problems
« Reply #4 on: April 27, 2005, 09:09:37 AM »
ARGHHH!!!! sorry but .  . .why you ask before for suggestion and then!?!?

x56h34 has crearly said you

"Solution...usually feeding +5V to the PPC fan connector solves the problem (the PPC fan should be separately powered)."

i'm sorry for that but i fear you have fried your BPPC :-(

 

Offline patrik

Re: BPPC 603e+ weird boot problems
« Reply #5 on: April 27, 2005, 11:20:13 AM »
@all:

What about creating a FAQ/guide for what to do and what to not do with those BlizzardPPC cards? I bet it could save atleast a few cards.


/Patrik
 

Offline Boot_WBTopic starter

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Re: BPPC 603e+ weird boot problems
« Reply #6 on: April 27, 2005, 11:51:00 AM »
Hey ho, live and learn.

Does anyone have a repair/service manual for a bppc and a REALLY TINY soldering iron?  :-)

It appears only 1 component has burned out - trouble is I don't know what the resistance of the component is, and the components are SOOOOO tiny that I can't read any writing (if there is any) on them.
On the reverse side from the 5V+ header there is a group of 3 teeny resistors: it's the one closest to - and running parallel to - the SIMM socket.  

If no-one knows I may try just soldering a jumper across - see if that works: start with a dead BPPC, end with a dead BPPC - what's the diff?

Feel like I've just stepped on my favourite pet though......
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Offline bloodline

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Re: BPPC 603e+ weird boot problems
« Reply #7 on: April 27, 2005, 12:01:48 PM »
Quote

Boot_WB wrote:
Hey ho, live and learn.

Does anyone have a repair/service manual for a bppc and a REALLY TINY soldering iron?  :-)

It appears only 1 component has burned out - trouble is I don't know what the resistance of the component is, and the components are SOOOOO tiny that I can't read any writing (if there is any) on them.
On the reverse side from the 5V+ header there is a group of 3 teeny resistors: it's the one closest to - and running parallel to - the SIMM socket.  

If no-one knows I may try just soldering a jumper across - see if that works: start with a dead BPPC, end with a dead BPPC - what's the diff?

Feel like I've just stepped on my favourite pet though......


There is a repair service in France somewhere, someone will have a link.

Offline x56h34

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Re: BPPC 603e+ weird boot problems
« Reply #8 on: April 27, 2005, 01:10:44 PM »
@Boot_WB:

OMG... :-( You should have asked if you weren't sure dude. :pissed:

The original fan is a 5V fan, hence you can only feed as much as +5V to the same connector. Like with any other electronic device, if you feed too much power than what's originally rated...you know what happens...
It is printed on the fan itself that it's a 5V fan.
 

Offline Karlos

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Re: BPPC 603e+ weird boot problems
« Reply #9 on: April 27, 2005, 04:02:25 PM »
@Boot_WB


+12VDC is not used for any kind of circuit logic. It is used only for motors, serial line drivers etc.

In that regard, pumping an additional 12VDC feed into a *genuine* 12VDC line would not help your power problems if they were due to an overloaded 5VDC. Putting it into a 5VDC line is just going to burn out anything it manages to flow through.

Your resistor might be fried, but expect that any delicate parts would be equally fried, even if you cant see it physically.
int p; // A
 

Offline Boot_WBTopic starter

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Re: BPPC 603e+ weird boot problems
« Reply #10 on: April 28, 2005, 02:15:32 AM »
Quote
x56h34 wrote:

The original fan is a 5V fan, hence you can only feed as much as +5V to the same connector. Like with any other electronic device, if you feed too much power than what's originally rated...you know what happens...
It is printed on the fan itself that it's a 5V fan.


On inspection this particular PPC fan has no power rating written on it, however you're right - I should have researched things more thoroughly there: I was extremely tired, and mistook a fan taken off the 68040 for the fan taken from the underside of the PPC heatsink.  Anyway, the deed is done, and the lesson learned.  I apologise to the Amiga commmunity for this unnecessary - and untimely - death of a PPC board.

Quote
Karlos wrote:

Your resistor might be fried, but expect that any delicate parts would be equally fried, even if you cant see it physically.


I'm hoping the fan header may be on a direct track from the motherboard, rather than sharing a circuit with delicate components - surely the risk of a backsurge from a jammed fan would neccessitate this...(he hopes)?

Hmmm.... weird.  On testing the identical component on a different bppc I get 1 ohm across it - not much of a resistance!?!.  
Same in both directions, so not a diode.  
Could be an inductor?
Any ideas?  

If DeQuevedo or someone of similar technical acumen is reading please, please PM me to help identify the damaged component.
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Offline bloodline

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Re: BPPC 603e+ weird boot problems
« Reply #11 on: April 28, 2005, 08:26:38 AM »
Quote

Boot_WB wrote:

  I apologise to the Amiga commmunity for this unnecessary -and untimely - death of a PPC board.



Don't apologise, you've just increased the value of my board! :-D

Offline Framiga

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Re: BPPC 603e+ weird boot problems
« Reply #12 on: April 28, 2005, 09:50:27 AM »
Post a picture of your BPPC.

Often 1 Ohm resistors, are installed as protection (like a sort of fuse).

If its a capacitor, could be in short even if, you must remove it for test it.

btw . . . no need to apologize! we are sorry for what has been happened to you :-)
 

Offline DeQuevedo

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Re: BPPC 603e+ weird boot problems
« Reply #13 on: April 28, 2005, 10:33:12 AM »
@Boot_WB

Just upload somewhere a photo of your PPC focused on the area of the damaged component. Mark EXACTLY the apparently burnt comp, in order to tell you what is and what to do.

TV Paint, or whatever paint package ywould be ok to mark the component.
---------------------------------------

-Have Fun infected Incubes!
 

Offline Boot_WBTopic starter

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Re: BPPC 603e+ weird boot problems
« Reply #14 on: April 29, 2005, 04:16:14 PM »
Thanks folks - I'll post the pics tonight.  Have to re-install scanner software on my PC :-P
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