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Subject: RAM enhancement - the delayed story

RAM enhancement - the delayed story

From: Matthias Wächter <>
Date: Mon, 30 Dec 2002 19:04:09 +0100 (CET)

Hi to everyone!

A couple of months ago I updated my AJB6k from a 2MB DRAM chip to a 8MB
DRAM chip. I had to do some special soldering - first unsolder the old
chip, the solder the new chip, then add some special wires. After the
hardware mod was done, the first power-up showed that _everything_worked_!
I thought, hey, what an _easy_ project! :-) Of course, updating Rockbox to
recognize the four-times-as-large RAM was an easy trick and it showed that
this _can_ be done.

But a couple of weeks ago, finally owning a digital camera, when I wanted
to document everything, after re-assembling the unit I had a loose contact
making the device as fragile as chinaware. After one further attempt of
re-assembling last week, the unit is not functioning any more :-( It seems
I have to transfer my dead archos bones to the professional soldering
station in my company again to re-solder the RAM and the fine wires.
Appearantly I used too few tin-solder and the contacts slightly broke
already at the first mounting back in September. Let's see when I will
have the time to do this.

I just wanted to share this information with you (and all the interested
people around waiting for my finished documentation on my efforts). I hope
that I did not destroy the large RAM chip yet.

Sehr Wus,
- Matthias

                    "To get control over people, make them trust you.
                                            To make people trust you
                      don't try to tell them the truth about history
                 but make happen what you told them about the future."
Received on 2002-12-30

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