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1600MHz works and runs at 1600 MacBook Pro 2011

benamaster said:
Early 2011 17" MacBook Pro 2.2

I don't notice any temperature difference, I haven't benchmarked it yet. I don't see how ram would make a noise difference.
Click to expand...

Wouldn't the heat turn on the fans more? They didn't put heat sinks on them to make them look pretty.
 
Think I found the issue...

So after a bit of research, I think I found why these 1866 DIMMs aren't working. So after getting 2 "bad" batches of the 1866, I ordered the 1600 models, and I am using them now after running a 4 hour memory torture test and stable. jonnyj, you mentioned that you were using the Patriot 1600 and getting many kernel panics, so I did a bit of searching...

http://www.newegg.com/Product/Product.aspx?Item=N82E16820220577
^^
These have a CAS of 11, as do the 1866. I spoke with a few other people we know who are like-minded and love the idea of a second shaved off their boot time, and they reported similar issues with any CAS 11 RAM. Now I can't exactly prove it, but if anybody here can disprove it, I'd be surprised. So, I'm ASSUMING that if/when the 1866 comes out with CAS 9, we SHOULD be all set. That being said, I'm going with a lot of you others here in saying screw it, I'm happy with the 1600 and I'm gonna stay there (now I just have to find a 512GB SATA3 SSD to replace my SATA2 model that's NOT the m4).

Also, as for the heat thing, no, perhaps a 1-2°F change in memory temp under full memory load (like running a memtest)
 
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nurv2600 said:
So after a bit of research, I think I found why these 1866 DIMMs aren't working. So after getting 2 "bad" batches of the 1866, I ordered the 1600 models, and I am using them now after running a 4 hour memory torture test and stable. jonnyj, you mentioned that you were using the Patriot 1600 and getting many kernel panics, so I did a bit of searching...

http://www.newegg.com/Product/Product.aspx?Item=N82E16820220577
^^
These have a CAS of 11, as do the 1866. I spoke with a few other people we know who are like-minded and love the idea of a second shaved off their boot time, and they reported similar issues with any CAS 11 RAM. Now I can't exactly prove it, but if anybody here can disprove it, I'd be surprised. So, I'm ASSUMING that if/when the 1866 comes out with CAS 9, we SHOULD be all set. That being said, I'm going with a lot of you others here in saying screw it, I'm happy with the 1600 and I'm gonna stay there (now I just have to find a 512GB SATA3 SSD to replace my SATA2 model that's NOT the m4).

Also, as for the heat thing, no, perhaps a 1-2°F change in memory temp under full memory load (like running a memtest)
Click to expand...

Good job sleuthing up that data, nurv. I'm glad I just went for the refund and not gambled on another 1866 kit. Someday 1866 will be stable and someday after that it's going to be a slow boat anchor that only comes with $99 Acers from Best Buy. :)
 
I'm in a little bind here. I have the option to get the Kingston Hyper X for under a $100 out the door. But I just purchased the crucial 8gb (1333) already. Should I install it since it's not opened or go for the Hyper X? Will I see any real benefit? Any info would help. :)
 
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On the Hyper X pnp official web page it says they have tested it on the 13" MBP, check it out.
 
benbrownlol said:
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On the Hyper X pnp official web page it says they have tested it on the 13" MBP, check it out.
Click to expand...

I'll need to check it out. I'd rather purchase the faster memory now because I'll be purchasing a new MBP and it's very possible that would officially support 1600 speeds. I'll just swap this memory into that MBP.
 
Well, count me among the 1866 users that experience a kernel panic while idling - just got 2 of them over the weekend. This will be going back, and will be replaced by the 1600 version.
 
///KM said:
Well, count me among the 1866 users that experience a kernel panic while idling - just got 2 of them over the weekend. This will be going back, and will be replaced by the 1600 version.
Click to expand...

I've had 1600 back in for about a week and no kernel panics, as it should be.
 
Tried the 1866mhz sticks in my i7 2.2 GHz 17inch machine and no problems what so ever, no kernel panics yet. Often run huge graphic files in photoshop, 2GB plus and totally stable. Have run memory torture test for 1 hour, and encoded DVD in handbrake. Still good. Will report any kernel panics but as yet stable. Awesome. Perhaps the 17inch is a little different.
 
The only processors which support the 1600MHz RAM is the 2.2GHz and 2.3GHz.

The RAM will work in the others but it'll be downclocked to 1333MHz
 
Whats the maximum ram speed the sandy bridge macbook laptops can handle? 1866mhz seems to be possible, is it safe to assume we could see higher speeds in the future?
 
Apple Expert said:
Wouldn't the heat turn on the fans more? They didn't put heat sinks on them to make them look pretty.
Click to expand...

For laptop RAM they do.
It's the same voltage as stock so it's not going to run any hotter than 1333. I tore my HS off the memory before installing it.
 
Ok, been 3 days and no issues with Kingston 1866mhz DDR (non X version) in 17inch MBP 2.2Ghz. System info confirms speed, so not clocked down. Super fast super stable. nice! hope this helps. It is CL 11 memory.
 
Should I go with the Kingston HyperX (1600) for $100 out the door or G. Skill (1333) for $60 out the door? Both 8gb kits. Kingston says it will work for my MBP. Is the difference worth $40? I plan on keeping this laptop till next year when Ivy Bridge comes out. The next cpu will support 1600 natively, however I'm not sure I will be able to swap out the memory into the new MBP if it uses a different CL or different voltage.
 
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Apple Expert said:
Should I go with the Kingston HyperX (1600) for $100 out the door or G. Skill (1333) for $60 out the door? Both 8gb kits. Kingston says it will work for my MBP. Is the difference worth $40? I plan on keeping this laptop till next year when Ivy Bridge comes out. The next cpu will support 1600 natively, however I'm not sure I will be able to swap out the memory into the new MBP if it uses a different CL or different voltage.
Click to expand...

Sandy Bridge support 1600Mhz Natively Apple just doesn't advertise it for some reason. Personally i would go for the 1600Mhz, in the big scheme of things $40 is nothing.
 
Macsavvytech said:
Sandy Bridge support 1600Mhz Natively Apple just doesn't advertise it for some reason. Personally i would go for the 1600Mhz, in the big scheme of things $40 is nothing.
Click to expand...

Thanks for the input. I will probably go with the Kingston. Seems like people are happy with them.
 
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