View Full Version : Portege 4000 - I would like to upgrade memory from 256MB to 512MB

09.06.2009, 22:46

I have a Portege 4000 and would like to upgrade the memory from 256MB to 512MB.
It has 98SE and the user would still like to keep this system.

Does anyone know if there is a known problem upgrading to 512MB as I saw a thread in 2005 from someone who had a problem?

I guess the memory is PC133 SODIMM. I ordered a 512MB RAM from aememory last year, but the system would not even start. Perhaps they had sent me the wrong chip?



10.06.2009, 08:57
Hmm…. maybe the RAM modules are not 100% compatible…
From my knowledge it should be possible to upgrade the RAM to max. 1GB (2 x 512MB)
You could also upgrade it to 512MB using one module or two 256MB modules.

You have to use the 144-Pin PC133 SODIMM modules and I found these modules which are compatible:
PC133 512MB (PA3108U-1M51)
PC133 256MB (PA3086U-1M25)

Check also this page:

There are some modules which should work together with Portege 4000

10.06.2009, 14:59
Many Thanks - this was very helpful