Upgraded 2011 MBPro to 16GB and it reboots when running Revit & CAD

[As Seen on TV]

After I installed 16GB DDR3-1600, the MBPro now much faster but i've been testing it using CAD, 3D renderers and games - and it reboots when doing higher level computations.

I pulled out the new RAM and plugged in my original RAM for testing, and works fine.

I am using a MacBookPro8,2 Early 2011 15" Core i7 (I7-2635QM) with a pair of F3-1600C10D-16GSQ.

Did I get bad RAM?

 

[ChAoTiCpInOy]

Memtest it.

 

[TheStu]

So you put all new RAM in all of your Macs and now they are all fubar? That sounds very strange.

 

[Kaido]

Yup memtest it. Download this:

http://www.memtest.org/download/4.20/memtest86+-4.20.iso.zip

Unzip it, burn the ISO to a CD, and boot it up. Let it run overnight - if you can do 6 passes with zero errors, you can rule out memory errors!

 

[joshhedge]

I'm not sure, but I believe your DDR3 RAM in the early 2011 MBP should be rated for 1333MHz. Not sure what affect that would cause?

Edit: I am correct - http://support.apple.com/kb/SP620?viewlocale=en_US&locale=en_US

Further to this, Apples rated maximum for your Mac is only 8GB.

Guessing the extra RAM and un-supported frequency would be causing the instability in RAM intensive applications.

 

[As Seen on TV]

The F3-1600C10D-16GSQ kit works on a MacBookPro8,1 Early 2011 13" Core i7 (I7-2620M)

I ran memtest but 12 gigs was only detected.

Mac OS X 10.8.2 (12C60) running in multiuser mode
Memory Page Size: 4096
System has 8 Intel core(s) with SSE
Requested memory: 12198MB (12790575104 bytes)
Available memory: 12198MB (12790575104 bytes)
Allocated memory: 12198MB (12790575104 bytes) at local address 0x0000000101000000
Attempting memory lock... locked successfully
Partitioning memory into 2 comparison buffers...
Buffer A: 6099MB (6395287552 bytes) starts at local address 0x0000000101000000
Buffer B: 6099MB (6395287552 bytes) starts at local address 0x000000027e305800

Running 2 test sequences... (CTRL-C to quit)

Test sequence 1 of 2:

Running tests on full 12198MB region...
Stuck Address : testing 7 of 16

FAILURE! Data mismatch at local address 0x000000035be63818
Actual Data: 0xbffffffca419c7e7

Linear PRN : ok
Running comparison tests using 6099MB buffers...
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : testing 16 of 64

FAILURE! Data mismatch at local BUFA address 0x000000017f551618, BUFB address 0x00000002fc856e18
BUFA Data: 0xbfffffffffffffff, BUFB Data: 0xffffffffffffffff

Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : setting 187 of 512

Then it failed. Could it be a mis-seat? From what I understand if one of the modules is unseated - it should read 8 gigs only. Since 12 was read - one side of the RAM chips on one board could be defective?

FAILURE! Data mismatch at local BUFA address 0x000000017f551618, BUFB address 0x00000002fc856e18
BUFA Data: 0xbfffffffffffffff, BUFB Data: 0xffffffffffffffff

Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : testing 408 of 512

FAILURE! Data mismatch at local BUFA address 0x00000001342eb8a8, BUFB address 0x00000002b15f10a8
BUFA Data: 0xfffffffffffbffff, BUFB Data: 0xbffffffffffbffff

 

[rugby]

It's bad ram, send it back.