QUOTE(arielravenfall @ Jul 16 2013, 11:42 PM)
eh, oh ya... my bad! hahahaha
but still, what I'm saying is true of course... Using the higher wattage adapter isn't good... hahah

btw, thanks for correcting me bro!

Hi Bro, actually, using the 170W adapter is better than using the 120W adapter as long as the voltages are the same.
It just means than if your laptop power load is allowed to go upto 170W which could be the case if you are running the SLI GPUs (GT750M).
If you have a 120W adapter & your laptop is using more than that, some of the systems on the laptop may not have enough power to run.
If you have a 170W adapter & your laptop is using less, the adapter would actually run cooler as it doesn't have to supply that much power.
Only drawback I can think of for not getting the 170W adapter is the size & weight as it's heavier & bigger.
http://forums.lenovo.com/t5/IdeaPad-Y-U-V-...UK/td-p/1134467Another thing, I believe the 170W adapter's jack is a little tighter compared to the 120W adapter.
So basically, if you are running SLI, get the 170W adapter as the 120W adapter may not be powerful enough.
Hope this helps.