You have a customer who wants you to add some memory to a la

You have a customer who wants you to add some memory to a laptop his son uses. It currently has one 144-pin SODIMM module with a speed of PC-100. The memory module you brought with you for the upgrade is identical except that its speed is PC-133. What will happen if you try to upgrade the memory of this computer with the PC-133 SODIMM module?

A. The memory modules must be identical. If you try the upgrade, the computer will fail to boot.

B. The memory modules must be identical. If you try the upgrade, the computer will boot, but only recognize the slowest stick of memory.

C. The memory modules do not have to have identical speeds. The computer will recognize both modules but only run at the speed of the slowest module.

D. The memory modules do not have to have identical speeds. The computer will recognize both modules and will run at the speed of the fastest module.

Solution

The momory module must be identical in speed,otherwise the system conflict about clock speed.

C.The memory modules must be identical. If you try the upgrade, the computer will boot, but only recognize the slowest stick of memory.