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Aww... 1600 is not enough.

Here came 1866 a few weeks ago.

From bit-tech:

"If you're the type of person that runs dozens of applications all at once, then a higher memory frequency does help, particularly when you're running demanding software. However, our testing shows that memory rated at over 1,866MHz doesn't give much extra performance. Worse still, in some applications only 1,333MHz memory gives a performance penalty, meaning that 1,600MHz memory is fine."
 
you may want to check with this guy, he is supposed to run the exact ram you mention. :)

This guy here.

Yeah, I have that and it runs at 1600. However, I've seen more kernel panics than I'm accustomed to seeing, perhaps because of the ram.

New Egg had the Kingston kit that most people have been using and it should be here tomorrow. If there's any difference I'll post after I've had a few days with it running.
 
This guy here.

Yeah, I have that and it runs at 1600. However, I've seen more kernel panics than I'm accustomed to seeing, perhaps because of the ram.

New Egg had the Kingston kit that most people have been using and it should be here tomorrow. If there's any difference I'll post after I've had a few days with it running.

That blows, nothing worse than seeing your system malfunction :(

I got the kingston and so far I haven't had any kernel panics or hiccups (although sometimes when I start safari in OS X a beach ball will briefly whirl; in windows everything is as smooth as turkey gravy)

do you tether your iphone for internet access in OS X using the USB?
 
No, the SNB only natively supports 1600, unless Apple makes it support 1866.

All good and well to say, but they are made for sandy bridge, therefore there must be some sandy bridge processors that support it. I wonder if the MBP is one of those?
We just need a fact sheet! Damn I wish I had the time to look. Too busy posting.
 
All good and well to say, but they are made for sandy bridge, therefore there must be some sandy bridge processors that support it. I wonder if the MBP is one of those?
We just need a fact sheet! Damn I wish I had the time to look. Too busy posting.

Not the mobile set. I would be SUPER surprised if Apple added 1866 support. Looking around it seems they are using JEDEC so it MAY force itself into 1866 mode, but it depends on how Apples firmware handles it.

However for such a small perf gain in so few apps (going on reviews of the desktop versions) I'm not sure its worth the extra $50, unless you are doing some heavy video editing on your laptop.
 
You must be young! ;) When I starte out it was all in KB, and man you were king of the hill if you had 64 KB of RAM!

Haha! My first computer was a TRS-80 Model 1 with a 1.77 MHz processor and 4 KB of RAM. I didn't have a hard drive or even a floppy drive--I had a cassette tape drive! (It's still in my basement with a busted off U key)
 
This guy here.
lol. hi mister!

Yeah, I have that and it runs at 1600. However, I've seen more kernel panics than I'm accustomed to seeing, perhaps because of the ram.

New Egg had the Kingston kit that most people have been using and it should be here tomorrow. If there's any difference I'll post after I've had a few days with it running.

you don't tether an iphone do you? i had been experiencing loads of kernel panics during the first days i had my mbp while i was tethering my iphone; then i found out it was because of the iphone tethering its connection and, as soon as i stopped it, kernel panics were gone (actually, i think i had a kp or two even without tethering the connection)
that's was when i had the KHX1600C9S3K2/8G.

right now i am using a pair of KHX1600C9S3P1K2/8G which, knocking on wood, runs flawlessly.

i know, as a matter of fact, that both of them are programmed to the exact, same timings in spd's.

edit: sorry i didn't check the other post where you wrote you don't tether connection.
 
No, the SNB only natively supports 1600, unless Apple makes it support 1866.

evidence to the contrary on a review site.

additionally there is a review (in the feedback section) that says that it works on his sandy bridge laptop.

all this is very interesting to me, especially the review which suggests such a large difference (especially on integrated graphics)... however i am skeptical of the massive gains (e.g. 6gb 1333 in the review to 8gb 1866... more ram= the difference?)

I think at this point, it is most likely worth the try, the worst that could probably happen is it clocks itself down to 1600mhz.

However this bit has me optimistic: "Seems like Kingston have made 1866 MHz RAM targeted for notebooks. SB i5/7s can only support up to 1666 RAM according to Intel specs, but legitreview says this:
"JEDEC board recently released JEDEC-compliant settings allowing for 1600MHz and 1866MHz frequency support on these platforms. The Intel 'Sandy Bridge' mobile processor family can easily support these faster memory speeds"
 
This guy here.

Yeah, I have that and it runs at 1600. However, I've seen more kernel panics than I'm accustomed to seeing, perhaps because of the ram.

New Egg had the Kingston kit that most people have been using and it should be here tomorrow. If there's any difference I'll post after I've had a few days with it running.

Have you ran any RAM diagnostics?

I too have the Kingston HyperX 1600 (8GB worth) in my 2011 17" MBP. I've been able to, and in no order:

* install OS X
* install 10.6.7
* install Logic Studio, Poser 2010, Parallels, Windows XP in Parallels, Office 2010 in Parallels, UT2004 in Parallels
* install the latest firmware and other patches just released
* do a 3D render in Poser 2010 (20 minutes then I aborted)
* Play UT2004 for an hour straight

No kernel panics or other problems.
 
Have you ran any RAM diagnostics?

I too have the Kingston HyperX 1600 (8GB worth) in my 2011 17" MBP. I've been able to, and in no order:

* install OS X
* install 10.6.7
* install Logic Studio, Poser 2010, Parallels, Windows XP in Parallels, Office 2010 in Parallels, UT2004 in Parallels
* install the latest firmware and other patches just released
* do a 3D render in Poser 2010 (20 minutes then I aborted)
* Play UT2004 for an hour straight

No kernel panics or other problems.

Nah, I'm too lazy to do any actual diagnostics. I'd rather just spend $100 and see what happens. I'll have the Kingston set tomorrow.

The kernel panics don't happen all the time. The last one was 2 days ago and it pointed to the Better Touch Tool app. I disabled that and nothing has happened since then. Previously Chrome was the indicated culprit.
 
evidence to the contrary on a review site.

additionally there is a review (in the feedback section) that says that it works on his sandy bridge laptop.

all this is very interesting to me, especially the review which suggests such a large difference (especially on integrated graphics)... however i am skeptical of the massive gains (e.g. 6gb 1333 in the review to 8gb 1866... more ram= the difference?)

I think at this point, it is most likely worth the try, the worst that could probably happen is it clocks itself down to 1600mhz.

However this bit has me optimistic: "Seems like Kingston have made 1866 MHz RAM targeted for notebooks. SB i5/7s can only support up to 1666 RAM according to Intel specs, but legitreview says this:
"JEDEC board recently released JEDEC-compliant settings allowing for 1600MHz and 1866MHz frequency support on these platforms. The Intel 'Sandy Bridge' mobile processor family can easily support these faster memory speeds"

You obviously didn't read my 2nd post.
 
Nah, I'm too lazy to do any actual diagnostics. I'd rather just spend $100 and see what happens. I'll have the Kingston set tomorrow.

The kernel panics don't happen all the time. The last one was 2 days ago and it pointed to the Better Touch Tool app. I disabled that and nothing has happened since then. Previously Chrome was the indicated culprit.

I'd hazard that maybe it's to do with the discrete graphics becoming enabled but I thought the firmware update stopped the discrete graphics turning on for browsers.
 
Not the mobile set. I would be SUPER surprised if Apple added 1866 support. Looking around it seems they are using JEDEC so it MAY force itself into 1866 mode, but it depends on how Apples firmware handles it.

However for such a small perf gain in so few apps (going on reviews of the desktop versions) I'm not sure its worth the extra $50, unless you are doing some heavy video editing on your laptop.

Then why are they making Laptop RAM 1866Mhz for Sandy Bridge?
 
Then why are they making Laptop RAM 1866Mhz for Sandy Bridge?

Because on some laptops with looser BIOS restrictions it should work. You have to remember we are dealing with Apple, they even lock out capable machines from doing 8GB or ram and x64 because they don't think you paid enough
 
Because on some laptops with looser BIOS restrictions it should work. You have to remember we are dealing with Apple, they even lock out capable machines from doing 8GB or ram and x64 because they don't think you paid enough

Examples please...
 
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