Solve : IBM LAPTOP MEMORY SDRAM?

1.	Solve : IBM LAPTOP MEMORY SDRAM?
Answer» Im using IBM Laptop with 2 64MB SDRAM CHIPS, and when im trying to upgrade to 1 chip of 256MB SDRAM, total Memory 320MB RAM, then try to turn ON the Laptop, the message on screen is Corrupt Files! PRESS "r" to start repair and insert the CD-ROM. anybody can HELP me here.......Start it with the old, WORKING RAM, to see if the new RAM is the problem. Are you sure that the new RAM is compatible? How old is this laptop?

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