My T400 has DDR2 memory!?

I order the T400 in cpp, and the order pdf is ddr3 memory also.
Now, I got the machine, and checked by everest 4.6.
It is reported the memory is DDR2, not DDR3.
How can I check it by other method?

[ Memory Devices / DIMM 1 ]

Memory Device Properties:
Form Factor SODIMM
Type DDR2
Type Detail Synchronous
Size 1024 MB
Speed 667 MHz
Total Width 64-bit
Data Width 64-bit
Device Locator DIMM 1
Bank Locator Bank 0/1

[ Memory Devices / DIMM 2 ]

Memory Device Properties:
Form Factor SODIMM
Type DDR2
Type Detail Synchronous
Size 1024 MB
Speed 667 MHz
Total Width 64-bit
Data Width 64-bit
Device Locator DIMM 2
Bank Locator Bank 2/3

Memory Slots:
DRAM Slot #1 1 GB (DDR2 SDRAM)
DRAM Slot #2 1 GB (DDR2 SDRAM)

 

Try CPUID:
http://www.cpuid.com/pcwizard.php

 

Your laptop has DDR3 RAM. Since these are using fairly new chipsets some utilities report things like RAM type incorrectly.

 

You could always open up the bottom and physically look...