You can put faster in and it runs at the speed set by the machine.
Not all sticks are compatible so be sure to go with Crucial or get your return policies known up front.
Bob
Hi,
I want to upgrade memory on my Dell Inspiron 1720. Presently I have 2 X 1 gig DDR2-SDRAM (PC2-5300 / 667 MHz) and I want to upgrade to 2 X 2 gig DDR2-SDRAM (PC2-6400 / 800 MHz)
I have the last version of BIOS (A09) and on some Web site Memory retailer they say I'll put 800 MHz, other site only 667 MHZ and Dell propose on his Web site 800 MHz. But I remember first time I bought my laptop it only accept 667 MHz. It very confuse...
Can I put 800 MHz in this Laptop? If I bought 800 MHz do they work at this speed or only 667 MHz?
I wait for your answers.
Regards, baloor

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