Ram running at 533 not 667

Discussion in 'MacBook Pro' started by dreamsINdigital, Oct 4, 2006.

  1. dreamsINdigital macrumors 6502

    Sep 4, 2006
    I bought RAM on eBay for my MacBook advertised as 2 GB (2 x 1 GB) of Samsung DDR2 667 PC2-5400 RAM. I installed it and it works, yet looking at About This Mac and System Profiler, it appears to be running at 533 and not 667. I tried each stick individually, and also combined with the stock MacBook RAM, yet it still reads as 533. I know it sounds bad since I got the RAM on eBay, but say it really is 667 RAM. Is there anything I could do get it running at 667 and not 533? Some setting I could change? Any program I could use to identify the RAM and speeds?

    Searching google, I found this site with someone that says,
    Even if it is 533 RAM, I read there's only like 1% performance difference from 533 and 667. Should I just keep it? After all, I only paid $160 for them.

    This was the eBay listing.

    What do you guys think?

  2. dreamsINdigital thread starter macrumors 6502

    Sep 4, 2006
    In Windows XP through Boot Camp, looking at CPU-Z it's telling me that the memory is PC2-4300 266 MHz. :\ I don't know what to believe... the seller, what OS X reports, or what Windows reports.

    I want to contact the seller, but I don't know what to say yet with these mixed reports.
  3. Bill Gates macrumors 68020

    Bill Gates

    Jun 21, 2006
    266MHz x2 = 533Mhz. It's just not multiplying it out under Windows. My guess is that there is an issue with the timings of that particular variety of memory module, and the speed would need to be manually set. However, without even fiddled much with Macs, I can say that it's highly unlikely that you'd be able to perform such a corrective measure.
  4. dreamsINdigital thread starter macrumors 6502

    Sep 4, 2006
    After closely examining the stickers, they look cheap and pixelated as if they were printed out of a computer and poorly cut not even straight. The corners are not rounded, but snipped to give a rounded appearance. They definitely do not look as good as in the auction picture.

    Also, while I was lookin at CPU-Z on XP via Boot Camp, the manufacturer was not listed as "Samsung" but instead a bunch of zeros 000000000.

    I suspect this RAM is counterfeit. Looking at the seller's feedback someone who bought some Kingston RAM from him said, "Item was not as describe; But Compatiable & working , Willing to take back item"

    What should I say to him? Should I tell him I suspect the RAM is counterfeit or just try to say that the RAM isn't running as expected?
  5. Eidorian macrumors Penryn


    Mar 23, 2005
    533 MHz RAM will run fine on on a 667 MHz bus. It just won't run at 667 MHz. You got scammed.
  6. generik macrumors 601


    Aug 5, 2005
  7. dreamsINdigital thread starter macrumors 6502

    Sep 4, 2006
    On the actual RAM itself, no. On the sticker that appears to be counterfeit there's a Samsung logo.

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