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Memory upgrade: Kingston or Kingston Apple?

Whenever I shop for RAM upgrades I find memory that fits Apple specs and memory that is for Apple. My question is - is this just a marketing ploy is is the 'Apple' memory different/better in some way?

AS an example on newegg, RAM for the Isight 17" Kingston Pt# KVR533D2N4/2G

they also carry the Kingston 'Apple" module Pt# KTA-iMac533/2G

EDIT: Thank you everyone for contributing - I don't think I have ever used Apple specific RAM, I just match the specs and go about my day. I posted this because I wanted to know if anyone had any inside information about any difference between the two modules. Why does Apple even have their own specific RAM if it's the same, and why does it have it's own pn? - if it's the same wouldn't it have the same pn? Anyone who has spent any time with an Apple machine knows how much Apple loves its little secrets. I guess I was just wondering if I have been missing out on performance or something all these years by not using Apple specific RAM.

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The only difference I know of is the maker of the ram is guaranteeing the ram meets Apple specs. So long as ram meets those specs any ram will do. Ralph

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I ran into this problem this week. It seems that on PC's (which I know nothing about), that faster RAM can be used, than is called for. I've run into nothing but problems doing this with a Mac. We had tested good RAM that was a higher speed than called for used in a iMac (G5) 20", and it crashed constantly. I've seen the same thing many times on different Macs. I quit fighting it and just use the RAM called for and bypass the problem. My supplier is www.ramdirect.com. They only handle Macs, I've have no failures in 15 years from them. I don't get a kickback from them or work for them. I just highly recommend them. Their guides for selecting the correct RAM are also very useful.

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Thanks Mayer - I had just posted a question about this.

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+ I have used them also. Ralph

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Great, this question and answer actually give me a part to the puzzle of an iBook issue I have, but have been avoiding asking and instead reading existing question. Thanks

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I have never had any issue with faster RAM in a Mac and I Have about 19 all different models. Mayer, good answer but that wasn't what I asked about.

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This question has been discussed here if its tl;dr, basically it doesn't matter, just make sure the bus speed is right (800 mhz, 1066 mhz, etc.)

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Gabe, I also have not seen any problems with using non-Mac specific RAM. But I wanted to know if there is a performance difference or anything - what I want to know is is there any difference between PC and MAC RAM.

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Additional small items of consideration to throw on the pile when sorting through appropriate memory for your mac aside from bus speed:

1. CAS Latency (CL) - look at the original memory that came with the mac for a reference [ex. 4 - 3 - 3 - 4, or 4 - 4 - 4 - 4 ... abbrev. as CL4]

2. Low density vs. High Density (yes, some macs are sensitive to this in my experience.

3. And of course, for anyone new to memory selection... the obvious ECC/ Non-ECC and Registered/Unregistered (buffered/unbuffered) to consider. G5's do readily accept ECC (as long as you're not mixing the two -- I've tried it in the past to test it out, and it degrades performance with mixed ECC/Non-ECC in G5's

Cheers

Jason

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I asked this question myself concerning the same exact RAM, Kingston. As long as u match the specifications, it doesn't really matter if the RAM is Mac specific. It's just a ploy to overprice RAM. Just make sure u match the RAM to the exact specifications as your machine needs and you should be fine.

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I have 2x2GB Kingston RAM on my machine for several months now that aren't "Mac Specific", and I haven't had any problems.

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