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what ram do I really have

Corrosive vinyl

Corrosive vinyl

macrumors 6502
Original poster
Sep 22, 2006
473
0
I am confused about what ram I have. I read the sticker on the ram on my ibook and it said M9684G/A which is samsung 256 mb pc2100. When I go into my system profiler it says I have pc2700u ram. What the heck??

I am going to get a bigger ram stick but am confused as to what I really have. Can someone help me?
 
it is a 14" 1.33 Ghz G4, and I think I wrote it down right. I did a google search for the M9684GA and got 256mb ddr ram which I have. I also went to newegg and put in what notebook I had and it came up with pc2100 ram. How is it saying i have the pc2700u-25330?
 
The system profiler sometimes shows bogus information on some of the PPC Macs. For example, it reports I have four banks of memory and claims one bank is empty on my G4 PowerMac but that machine actually only has three memory slots.
 
You probably do have PC2700 RAM. PC2100, PC2700, and PC3200 are all DDR RAM, and the faster speeds are backward-compatible. Meaning that if your Mac requires PC2100 (which the iBook you described does), then it can use any of the three types.

Therefore, it's entirely possible that it has a PC2700 stick in it despite only needing PC2100. Particularly if it was upgraded recently--I don't know if any companies are even making PC2100 anymore. They'll generally just sell you a faster compatible stick.
 
wow! thanks you guys, that was some great information. I am going to research and then order some. Would pc3200 be good or would it be pointless?
 
trainguy77 said:
It wouldn't help anything. As it will run at the lower speed.
Click to expand...
But... if you do find a stick of faster stuff cheaper than PC2100, there's no harm in it (and depending on the manufacturer, that could be the case, since some have stopped making PC2100 entirely).

Either way, my standing recommendation (if you're in North America) is to go to either DMS (datamem.com) or OWC (macsales.com), find your computer, and order from them. It'll be a little more expensive than discount places, but the stuff is guaranteed to work in your exact Mac, has a lifetime warranty, and the prices are still reasonable. You can find other people here who'll agree with me.

If you're bargain hunting on Craigslist or whatnot that's a different matter, of course.
 
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