I was looking through digkey for random stuff for the bealgeboard when
i came across this
http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&KeyWords=557-1436-nd
IC MCP 4GB NAND 2GB DDR 168VFBGA
does this device add more ram to the beagleboard?
There are several POP memory options for the OMAP 35xx processor, mostly
available from Micron (no, not on their website, large qty only). In order
to use the one listed by Digi-key you would have to remove the BGA OMAP chip
from the board and replace it with the one using the new POP memory, a
daunting task if you don't have the specialized equipment for it. Otherwise
it's approximately a 98.327% probability you will trash the Beagle board.
Jack Peacock
Aaron Smith <ccmicrosoft@gmail.com> writes:
I was looking through digkey for random stuff for the bealgeboard when
i came across this
http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&KeyWords=557-1436-nd
IC MCP 4GB NAND 2GB DDR 168VFBGA
That is the chip used on rev C Beagle boards. 2G bits == 256M bytes.
does this device add more ram to the beagleboard?
It is impossible to add more memory to the board.
Secondly this is a 256MB RAM and 512MB NAND POP chip from Micron
Digikey isn't that great at distinguishing between GB and Gb 
=>
Compared to Rev Bx it's double up on both NAND and DDR
Compared to Rev C2 it's double up on NAND but the same amount of DDR
=> No gain compared to Rev C2...
Best regards
Søren
PS: And a Jack wrote a memory change will most likely require an OMAP change
as well...
Is the temperature needed to remove the PoP higher or lower than for
the rest of the board? Maybe you could do it in a toaster oven with
temperature control.
Sean
Måns,
Sure? - In the SRM it states 2GB of NAND => A 2GB/2GB chip only available
from Micron
http://www.micron.com/products/mcps/beagleboard_partlist
And not the 4G/2G part mentioned here?
/ Søren
Don't even try - You will get into trouble, although having the right
equipment the operation isn't that difficult. Temperature profile for rework
is the same as for the other components - Normal ROHS compliant solder is
used AFAIK...
/ Søren
Micron has several POP parts for the OMAp, including RAM only parts, but
these are not user-installable parts for a Beagle board. They aren't on the
Micron website because (according to the Micron salesman) they are getting a
lot of calls from Beagle board owners looking to upgrade.
For all practical purposes it IS impossible to upgrade the memory on the
Beagle, unless you are assembling the board yourself and substitute a
different OMAP/POP combination. Replacing OMAP or POP BGAs in the field
just ain't gonna happen (the exception being those with the rework stations,
who dont have to ask the question in the first place).
Hi Jack,
I totally agree to your points.
Now the main question - Which part is installed on Rev C2?
The 2G/2G or the 4G/2G part?
According to the SRM and the elinux.org/BeagleBoard/ page it's the 2G/2G
part, but apparently
Måns think/thought it's the 4G/2G part?
@Gerald: Can you clarify this once and for all before we get the question a
zillion times in the future?
Best regards and thanks
Søren
Søren Steen Christensen <sorenschristensen@stofanet.dk> writes:
"Sean D'Epagnier" <geckosenator@gmail.com> writes:
Is the temperature needed to remove the PoP higher or lower than for
the rest of the board? Maybe you could do it in a toaster oven with
temperature control.
Only a halfway solution, but what of course can be done is adding a
ram disk on usb and use that for swapping.
(unfortunately I am unaware of the existence of such a device, but a
handier person than me will definitely able to make one)
Not sure if it is feasible and performancewise better to connect RAM
in a different way (and e.g. integrate it with an add-on board)
Frans.