Re: Inserting RAMs PC2700-333Mhz and PC3200-400Mhz in older motherboards possible ?



In article <4468d597$0$4493$9b4e6d93@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
pmeister2@xxxxxxxxx (Peter Meister) wrote:

I have got some newer 512 MB RAMs with the following specification:

PC2700U DDR 333Mhz CL2.5
and
400MHz DDR PC3200 DIMM 3-4-4 Kingston

Can I (for testing purposes) insert them in an older Motherboard
which only understands

PC133; PC100; PC2100; PC1600

with 200; 266 MHz FrontsideBus?

In other words are the RAMs automatically "Under"-clocked or are they
damaged in such a machine ?

Peter

The PC3200 and PC2700 will fit in PC2100 and PC1600.
PC133 and PC100 are a different socket.

Most good BIOS will down-clock them, and that should work,
as the higher speed DIMMs are backward compatible with
lower speed operation. A PC3200 can go all the way down
to PC1600 speed (DDR200).

The green LED on the Asus motherboard must be off, before
inserting or removing parts on the motherboard. The best
way to do it, is unplug the computer, so you can be absolutely
sure that no power is present inside the computer.

Memtest86+, on a floppy diskette, is a good way to test
the newly inserted RAM.

Paul
.



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