20" intel iMac - Do I have the right RAM installed?

[Passive101]

This sounds like a strange question. I got the computer in a trade with someone else. Crucial's program says I can use 200-pin SODIMM, DDR2 PC2-6400


When I go into system profiler it says I have this
Size: 1 GB
Type: DDR2 SDRAM
Speed: 800 MHz

Why is it showing 800mhz only? Is that even possible?

My second question is this. I have 2 sticks of RAM from my old macbook that are 512MB each that are PC2 5300. Would it be faster if I put 1 or both of those in instead of the DDR2 800mhz RAM?

[czachorski]

That's the speed of the RAM, not the CPU - and it sounds right. Putting in those 2 512 MB sticks would not be any faster - it might be slower, as the older RAM may have a slower speed, if it is even compatible with your iMac.

If you really want a speed / performance boost, go to OWC or Crucial or Ramjet and grab a 4 GB set of RAM (it's really cheap right now), and max that baby out!

[Tallest Skil]

What model of iMac is it? That's really rather important in determining what RAM you need.

[Passive101]

20" core 2 duo imac. i have a 128mb 2400XT video card.

[Arcadie]

http://crucial.com/store/listparts.aspx?model=iMac%202.4GHz%20Intel%20Core%202%20Duo%20(20-inch)%20MB323LL/A