Maybe, depends on the motherboard (chipset).
Crash can probably tell you if you tell him what motherboard you have.
<A HREF="http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=40895#40895" target="_new">FAQ</A>
<i>Q: So how do I know if RAM will work in my system?
A:Compatability with newer memory is not a matter of speed, as most dealers would have you believe, but instead a matter of density. PC133 of a low enough density will usually work with even the oldest SDRAM chipsets. Examples from older to newer:
Intel VX chipset: Limitted to 2MB/chip, that would be 16MB for an 8-chip DIMM, 32MB for a 16-chip double sided DIMM. Some special "Double Height" modules of 64MB/32 chips were once available, but are quite rare do to size and cost of production.
Intel TX, LX, BX chipset: Usually limitted to 16MB/chip, 128MB for an 8 chip DIMM, 256MB for a 16-chip double-sided DIMM.
Other chipsets and peculiar motherboards have other limits, I have used a 256MB 16-chip PC133 module in an old TX chipset Pentium motherboard, but had only 128MB 16-chip modules work in an IBM LX chipset Pentium II motherboard. But for MOST boards, the above rules apply.</i>
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