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毎度の上海問屋っす。
1067 MHz DDR3 の４ＧＢ二枚交換。（モトは2GB二枚）。
メイドインチャイナ、モトのもチャイナ製だじょ。
お値段一枚一万円。
購入時（ソフマップ）取付だと27000円ですね。

バッテリ内蔵なので底面パネルガバッと開腹。
ネジは二種類、ネジロック付なのでちゃんとしたドライバー（00番）が必要。
写真撮り忘れました。m(_ _)m


サクサクッと起動したのでメモリチェック（Rember使用）してみました。




Memtest version 4.2 (64-bit)
Copyright (C) 2004 Charles Cazabon
Copyright (C) 2004, 2005, 2006 Tony Scaminaci (Macintosh ports)
Licensed under the GNU General Public License version 2 only

Mac OS X 10.6.4 (10F569) running in single user mode
Memory Page Size: 4096
System has 4 Intel processor(s) with SSE
Requested memory: 5962MB (6252523520 bytes)
Available memory: 5962MB (6252523520 bytes)
NOTE: Memory request is too large, reducing to acceptable value...
Allocated memory: 5795MB (6077452800 bytes) at local address 0x0000000101000000
Attempting memory lock... WARNING: Testing with unlocked memory may be slower and less reliable

ERROR: Memory lock failed - reason unknown.

Partitioning memory into 2 comparison buffers...
Buffer A: 2897MB (3038726400 bytes) starts at local address 0x0000000101000000
Buffer B: 2897MB (3038726400 bytes) starts at local address 0x00000001b61f4900

Running 1 test sequence... (CTRL-C to quit)

Test sequence 1 of 1:

Running tests on full 5795MB region... ok
Running comparison tests using 2897MB 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 ok
Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : ok
Walking Ones : ok
Walking Zeroes : ok

All tests passed! Execution time: 2562 seconds.