T420 1 DIMM Slot?

I pulled the trigger and placed an order for a T420 CTO today.

When I was configured the system, I chose a 4GB RAM 1 DIMM option in hopes that I will add another 4 GB myself to get a total of 8 Gb.

So I have a couple of questions:

1) When you choose the 1 DIMM option, do they leave the easily accessible RAM slot free or the one under the keyboard?

2) This is what I have in my order:

45M4572 VBB 4GBPC3-10600DDR3 1333SODMM $0.00

Is this 1 DIMM or 2 DIMM (2 x 2 GB) 4 Gb RAM? It's not clear from the part number and details. The reason I am asking is that I want to correct any possible mistake before they ship the machine.

3) Oh, and by the way, how long is the shipping + delivery time?

Thanks.

 

You're good to go, I ordered mine the same way and that's what it said. Came with only one DIMM and yes they leave the one under the access door empty and fill the one under the keyboard.

 

Thanks a lot, madcow06!