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1600MHz works and runs at 1600 MacBook Pro 2011
- Thread starter Hackintosh Sr.
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As said, the false 4GB limit on aluminum MacBooks, and the false 32bit limit on macbooks not labeled 'pro' until lately.
Yes, it's been stable. No kernel panics (knock wood).
However, the last time it crashed it was before I disabled the BetterTouchTool.
I think thats the kind that will only report it as 1333.
https://forums.macrumors.com/posts/12412158/
Atleast, thats why I returned it. =)
1866 confirmed working
Well, I'm happy to report that the 1866 PnP HyperX RAM works great in my 2.3 quad, and I have definitely noticed a bit faster boot times, as well as a slight increase in performance when converting hi-res video, but nothing groundbreaking (like when I put in my SSD). Overall, happy with the purchase, as it didn't cost me much after I sold my old 1333's to a non-sandy bridge friend.
Attached below are GeekBench 2.2.1 (64-bit) screenshots of my machine's before-and-afters for both overall performance as well as memory/stream performance specifics. Also attached is a screenshot confirming the memory running at 1867.
Well, I'm happy to report that the 1866 PnP HyperX RAM works great in my 2.3 quad, and I have definitely noticed a bit faster boot times, as well as a slight increase in performance when converting hi-res video, but nothing groundbreaking (like when I put in my SSD). Overall, happy with the purchase, as it didn't cost me much after I sold my old 1333's to a non-sandy bridge friend.
Attached below are GeekBench 2.2.1 (64-bit) screenshots of my machine's before-and-afters for both overall performance as well as memory/stream performance specifics. Also attached is a screenshot confirming the memory running at 1867.
Attachments
For 8GB sticks...
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104259 - $148.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104257 - $110.99
That's a big price difference for what you're getting.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104259 - $148.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104257 - $110.99
That's a big price difference for what you're getting.
Be nice if somebody with a 2.3 and 1600Mhz RAM (e.g. Kingston) could run GeekBench 2.2.1 (64-bit) so we could see if 1867 is running any faster than 1600. I only have a 2.2 otherwise I'd buy 64-bit GeekBench and try it...
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I'm well aware, hence I asked for somebody with a 2.3 to run the same test. I doubt it'll be much different though as my 1600 results sit between his 1333 and 1867 results.
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Very nice guys! I am ok with the 1600 but that is awesome 1867 works too! I don't know if I missed it , but what is it limited to on our 2011 macbooks? I thought the Intel site said the processors supported 1600mhz? Wasn't sure more was possible
You will probably see a difference in the overall results, but what you should really be looking at is the memory and stream sections, those *SHOULD* be the same given same RAM speed but a different machine; i.e., you could compare your 2.2 w/ 1600 to my 2.3 w/ 1866 and accurately see the difference within the memory and stream sections only.
EDIT: I should mention, I was getting kernel panics after a few days of use on those DIMMs, and the logs indicated bad RAM. Turns out they are failing memory tests. Now, I don't think that's because of the RAM in general, but simply that I got some bad sticks. I have sent them back to Newegg and will report back when I receive the new ones and run some tests to ensure stability.
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I bought this today, looking forward to seeing what performance boost it'll offer as opposed to the stock 4GB that came with my 15".
So they enabled 8GB RAM support despite them "not thinking you paid enough".
A lot of people (including me) are using 1600MHz RAM and it runs at that speed.
I ordered the 1866 kit this weekend and it should be here tomorrow. Will report before and after benchmarks.
Can anyone post the amazon links to these RAM modules?
Thanks in advance.
Can anyone post the amazon links to these RAM modules?
Thanks in advance.
http://www.amazon.com/gp/offer-listing/B004XZ8ZQE/ref=dp_olp_new?ie=UTF8&condition=new
The first listing is sold by Amazon. I just bought a pair myself, looking forward to seeing the performance differences vs 4GB 1333MHz.
As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.
I am interested in seeing how the 1866 compares to the 1600 since it is a higher latency. CAS 9 vs CAS 11 and if the CAS 11 will cause any issues like how CAS 7 1300.
Intel say that SB Mobile processors run 1600mhz max, would that mean that the 1866mhz RAM is only running at 1600 and just showing 1866???
If this is the case would that 1866 RAM be slower than the 1600 RAM?
Since the 1866 would be downclocked to 1600 but has a higher CL of 11 not 9 like the 1600??
Food for thought!
If this is the case would that 1866 RAM be slower than the 1600 RAM?
Since the 1866 would be downclocked to 1600 but has a higher CL of 11 not 9 like the 1600??
Food for thought!