Difference between FRU 45N5570 and 44C4872 (palmrest)?

[pupster]

What's the difference between the two FRUS below? I'm interested in replacing my palmrest w/ fingerprint reader on my X301 (Type 2777-CTO) since the plastic casing just in front of the mouse keys is cracked. I downloaded the maintenance manual for the X301, and there are TWO different FRUs listed on page 155 of the PDF for the palmrest (item #20; http://download.lenovo.com/ibmdl/pub/pc ... 441_03.pdf).

I'm ready to buy one of the two replacement parts, but I'm not sure which one to get. Seems like one of the parts has "sub-assemblies." What are those, and does having them included make the install job a lot easier?

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Duplicate? FRU PALMREST ASM W/ FPR
Product: 45N5570 $80.50 $80.50

Availability: In Stock**


Duplicate? MECHANICAL ASSEMBLIES AND SUB-ASSEMBLIES; FRU PALMREST ASM W/ FPR
Product: 44C4872 $86.00 $86.00

Availability: In Stock**

[91011]

The x301 had two palm rests available - the difference being the touchpad. One is a standard Alps the other a Synaptics with Multitouch capabilities.

I would double check this, but I'm pretty sure the 45N5570 is the Synaptics; I have had both & I much prefer the Synaptics.

IIRC there is a thread at the Notebook Review Lenovo forum with their respective FRU numbers.

[pupster]

The x301 had two palm rests available - the difference being the touchpad. One is a standard Alps the other a Synaptics with Multitouch capabilities.

I would double check this, but I'm pretty sure the 45N5570 is the Synaptics; I have had both & I much prefer the Synaptics.

IIRC there is a thread at the Notebook Review Lenovo forum with their respective FRU numbers.

Thanks...you are right...I found the thread here:

http://forum.notebookreview.com/lenovo- ... touch.html