My experience with memory upgrades (NB305 & NB505)

I just wanted to share my experience upgrading my NB305 and NB505 Toshiba netbooks from 1GB to 2GB RAM.  I ordered the memory from Crucial Technology on 1/1/12 and received it today (1/6/12).  The memory module for the NB505 (DDR3) cost $15, and for the NB305 cost $25, with free shipping.
I'm not a techie by any means, but swapping out memory is pretty straightforward.  There's only one screw holding on the cover for memory access on the NB305.  For the NB505, two screws.  Loosen the screws and gently pry the covers up.  A little resistance is normal because there are small tabs also holding the covers in place.  The memory modules are held by small clips that can be moved with your fingernail, and the memory come out easily.  The new memory is also easily inserted.  It's not totally idiot-proof (is anything?), but it's pretty close.
After putting memory access covers back on, I booted up both machines.  The only glitch I had was that I had not powered down the NB505 altogether but had it in hibernation state, so it could not restore and just had a blank screen.  All I had to do was to hold down the power button until all lights went off, and then I was able to power up normally.  Both the NB305 and the NB505 powered up without any more problems.
I don't have any benchmarks or anything like that, but I noticed the difference in performance on both machines right away.  Both netbooks are running Windows 7 Starter edition, so those users who are warning that you cannot upgrade memory with Windows 7 Starter edition are totally wrong.  Performance is a lot snappier, and I wish that I had upgraded the NB305 two years ago when I first bought it.  This little upgrade is well worth the money.
MY ONLY WARNING:  NB505 users should make sure they get the right kind of memory.  Some memory is DDR2, and some memory is DDR3.  Look on the serial number label on the back of your computer, and if there is a D3 in the upper right hand corner, you need to get the DDR3 memory.  Otherwise, get the DDR2 memory.   

gablueskies thank you for the info , i think even i need to upgrade my netbook.
 I own a NB505-N508BL , it doesnt have a D3 written on its corner of the serial label, it has XF , i assume i should buy the DDR2 memory for the upgrade right ?

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