Hi Clark,
I don't see such a fuse set-up in my 3400, if you're
talking about the casing.
My problem is that the 3400 will only boot normally if
an external SCSI device is attached and powered up.
Otherwise, the internal HDD stalls during the start-up
(after the smiley face and during the bar
In a message dated 4/11/2004 12:02:48 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
My problem is that the 3400 will only boot normally if
an external SCSI device is attached and powered up.
Otherwise, the internal HDD stalls during the start-up
(after the smiley face and during the bar
At 4:57 PM -0400 4/8/04, Tom and Lisa P wrote:
Have you confirmed it's the ADB controller and not the trackpad.
The easiest way to do this is to plug in a mouse to the external
ADB port.
The trackpad works on another 3400 I have, so thats not the problem.
The most likely failure of ADB is due
Tom,
Try as I might I could not cross reference that PMU chip, let me Know if you
do.
Thanks
Roger
Tom and Lisa P wrote:
Hi Mad dog.
could you mail me your url so i can try that adb mod on my 280c .
http://mywebpages.comcast.net/gionpeters//.htm
also where do you get all
At 4:57 PM -0400 4/8/04, Tom and Lisa P wrote:
Have you confirmed it's the ADB controller and not the trackpad.
The easiest way to do this is to plug in a mouse to the external
ADB port.
The trackpad works on another 3400 I have, so thats not the problem.
The most likely failure of ADB is due
Tom,
Try as I might I could not cross reference that PMU chip, let me
Know if you
do.
Thanks
Roger
At this point, it looks like you will have to scrounge them from 5300
and 1400 motherboards. No big loss, those are much cheaper than 3400
mobos. I will attempt a transplant today.
The
I just transplanted the PMU chip from a 5300 to my 180 Mhz 3400c
board (exact same chip). Unfortunately it still has the same
symptoms; the unit will bong, get the the question mark disk, with
the cursor stuck in the upper left corner. No ADB function, nor does
the trackpad. The HD spins up
Tom and Lisa P wrote:
Tom P aka Mad Dog asks:
Does anyone know which chip on the 3400 controlls the ADB ?
Opening the PB3400 devnote . . . the Architecture block chart on page
11 shows the PMU IC with ADB responsibilities. Then on pages 15 and 16 we
find this helpful info:
quote
Tom,
If you're looking at the top side of the motherboard there 2 large high
density chips near the center of the board, one of them is labeled PMU that is
the bad chip, I also have several bad 3400 logic boards with this same
problem, the primary symptom of the problem is usually that the
I was looking over my 3400 boards and one of them uses the same PMU
chip as the 5300, while others use a -B version of the chip. So, I
am hoping that all the 3400 can use either the 3400 or 5300 PMU chip.
Mad Dog
--
PowerBooks is sponsored by http://lowendmac.com/ and...
Small Dog
At 10:42 PM -0400 4/7/04, Tom and Lisa P wrote:
Tom P aka Mad Dog asks:
Does anyone know which chip on the 3400 controlls the ADB ?
Opening the PB3400 devnote . . . the Architecture block chart on page
11 shows the PMU IC with ADB responsibilities. Then on pages 15 and 16 we
find this helpful
Have you confirmed it's the ADB controller and not the trackpad.
The easiest way to do this is to plug in a mouse to the external ADB
port.
The trackpad works on another 3400 I have, so thats not the problem.
The most likely failure of ADB is due to a blown fuse. There are
several surface
connected up to my 1400 works fine.
still testing some other bits.
speak later Vicki
--
From: Tom and Lisa P [EMAIL PROTECTED]
To: PowerBooks [EMAIL PROTECTED]
Subject: Re: PB3400c ADB chip ?
Date: Thu, Apr 8, 2004, 6:35 PM
Tom,
If you're looking at the top side of the motherboard
Hi Mad dog.
could you mail me your url so i can try that adb mod on my 280c .
http://mywebpages.comcast.net/gionpeters//.htm
also where do you get all the bits from as you seem to have a never ending
supply.
I have an addiction to buying computer parts. I dont know if there is a cure.
After some further inspection, the 1400 motherboard seems to have the
same -B PMU unit. Can someone else inspect some of thier 1400 mobos
to confirm this ? Ebay usually has cheap 1400 mobos, so that can be
an easy source for the IC.
Mad Dog
--
PowerBooks is sponsored by
Mad dog
thanks for the page will get round to that mod later in the week.
will also get around to sending all my results of compatible parts to who
ever wants to list them as i do not have a web page.
just lots of experiment pages.
latest is a G3 tower clocked with higher bus and cpu (but
Tom P aka Mad Dog asks:
Does anyone know which chip on the 3400 controlls the ADB ?
Opening the PB3400 devnote . . . the Architecture block chart on page
11 shows the PMU IC with ADB responsibilities. Then on pages 15 and 16 we
find this helpful info:
quote
Power Management Unit
The power
Tom P aka Mad Dog asks:
Does anyone know which chip on the 3400 controlls the ADB ?
Opening the PB3400 devnote . . . the Architecture block chart on page
11 shows the PMU IC with ADB responsibilities. Then on pages 15 and 16 we
find this helpful info:
quote
Power Management Unit
The power
Does anyone know which chip on the 3400 controlls the ADB ?
thanks,
Mad Dog
--
PowerBooks is sponsored by http://lowendmac.com/ and...
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