The two RAM are inserted but only is recognized on Satellite Pro 4600

Hello

I have a Pro 4600 and two memory modules:
1 IBM 128 MB PC100 CL2 SODIMM 144 pin
2 Infineon 128 MB PC133 CL3 144 pin SODIMM

Each of these modules work fine separately.
When I put the two to reach 256 of ram, the system recognizes only 128MB, but boots ok anyway.

My question is: what to do to have 256 total RAM?
If the two models will be absolutely same (including manufacturer), it will cause correct 256 MB of ram?

Hello

Just FYI: If you want to use compatible modules please use PA3005U - 1 M 12 128 MB or 256 MB PA3069U - 1 M 25 memory module.

Tags: Toshiba

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