Toshiba Satellite A60

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My Toshiba has deffective RAM. memtest86 shows it.

I have taken apart the whole machine and did not find RAM separate module.
It seems to me that the ram is included in the motherboard.
I called the Toshiba maintenance in France (where I am ) and they told me
that the memory module is separate and offer to replace it by buying a new
one !
I am puzzled.
Any advice on this ?

Re: Toshiba Satellite A60

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If memory is not in a compartment on the base (a handy location), then it's
probably under the keyboard.  For sure you have a site that accepts updated
modules.  Maybe a quick look-see at the manual would help.  J

Re: Toshiba Satellite A60

Sydney wrote:
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    It appears that this laptop "has 256MB or 512MB on the motherboard."
You can view the manual at

    If your faulty RAM is on the MB, you are going to have a serious
problem overcoming it.

Re: Toshiba Satellite A60

Ken wrote:
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The manual says memory exists in two places. Memory is soldered to
the motherboard (256MB or 512MB). There is also a memory slot
on the bottom of the computer, covered by the "memory module cover"
(see page 56).

You would start, using the knowledge of how much memory is present
in the computer. If memtest86 says there is only 256MB or 512MB,
then the computer may not have an SODIMM in the slot. It could be
using just the motherboard (soldered down) memory. If the
soldered in place memory is bad, you'll need a new motherboard.

If the computer reports 1GB of memory, then some of the memory
is on the motherboard, and the rest is the SODIMM installed
on the bottom of the machine. If that was the case, you could
unplug the SODIMM and run memtest86 again, to test the soldered
down memory. If memtest86 passes, with the SODIMM unplugged,
then you won't need a new motherboard.

This is supposed to be a photo of the A60/A65, showing an added
memory module.

The onboard memory is supposed to be in the upper center of the
photo, under the gold colored material. I can't tell if that
is an actual module, or just chips soldered to the motherboard.


Re: Toshiba Satellite A60

Paul wrote:
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    I have a theoretical question for you:  Do you think the MB would work
if the on board RAM were disabled and additional RAM were installed into
the RAM slot?  Most MB's adjust the RAM when polled upon start up.
Supposed (and most people would never attempt to do this) the on board
RAM were disabled by opening the CAS and RAS lead or even the power lead
for the IC?  Would the first RAM seen then be that installed in the
slot?  Just curious.

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Re: Toshiba Satellite A60

Ken wrote:
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That is a good question. Based on the way regular motherboards,
chipsets, and BIOS work, I would say there is no special dependence
on soldered down memory. The situation could be quite different
for some older equipment. But modern stuff doesn't really
care which slots are populated.

As far as I know, you don't need RAM to start the boot process.
And the Northbridge is likely disabled, as far as memory operation
goes, and is turned on by some of the BIOS code. That is why
there should be more flexibility about what bank(s) have to be

You'd have to be careful, with respect to what you cut. If you
have a "private" signal on the memory bank you can play with,
that might be OK. But snipping any controlled impedance, bussed
signals would be a more dangerous proposition.

Still, I like your idea. If you could figure it out, then chances
are you could try exactly what you suggest.

One thing I can't tell you, is whether a modern BIOS is dependent
on having a working SPD chip or not, for each slot. The BIOS
actually has two ways to config/test memory. It can use the SPD EEPROM
and the declared config information, to understand what size memory
is installed. But the BIOS can also do probes on the memory, to
verify the size (that is how the BIOS can properly configure
a computer, even when the contents of the SPD are wrong). What
I can't tell you, is whether the hooks are still in
the BIOS, to do Plug and Play based purely on probing. If it
had the capability to probe, then disabling the SPD chip would
not be enough to prevent the memory from being detected.
And then you'd have to go after something like a CS#.

The soldered down memory might have an SPD chip, which is what
I'd attack first. Followed by looking for something like CS#.
Since I don't know what hides under that "gold colored material"
in the pictures, I don't know how difficult it would be to
disable the memory on the OPs board. We'd really need to see
a closeup photograph of what is underneath. If it was just a
regular SODIMM, the removal/disabling might be rather easy.
I don't really see much advantage to the manufacturer soldering
memory chips right to the motherboard, because of the danger
the memory might not pass on a factory memory test. It would
be more of an advantage for the memory to be modular and


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