not sure on the dynex... but you can research it online, should be ok
- the main thing is, the thermal compound won't make that huge of a difference, of course it's good to get a good brand,
but applying it correctly is more important, check if you are putting it directly on a die (usually a small shiny, chrome looking chip in the middle)
or it has a heatspreader (usually bigger in size and kind of silver/aluminium looking) - the die sits beneath those - usually in the center
the best way to do it is to practice... apply a small amount and remove it later to see how well it spread,
what you are looking for is to get the smallest amount possible in there that still spreads well over a good area,
recently for instance i changed my amd fx cpu stock heatsink that i had previously applied arctic MX-2 to,
and found out that using a slightly-bigger-than-a-rice blob in the center hadn't spread very well, but it spread nicely on my previous core2quad/duo
using a aftermarked zalman cooler that presses down with more force,
it was maybe covering half the cpu in terms of size... but the temps were still good,
it is because with a heatspreader you do not necessarily need to cover it entirely - just the hottest areas where the die is below...
but of course covering all of it would have made me more comfortable,
i think this happened because the stock amd fan has a very rough, cheap looking copper base so it took more paste to fill in the gaps,
but by having too much you can actually create an insulating layer between the chip and the heatsink,
another problem with laptops - check how the heatsink presses down on the chip - if it's not too strong it may cause the paste to not spread very well...
so the best way is to invest a little time and a bit more paste to experiment - apply - check how good it went.. apply again, make corrections if necessary...
another point - make sure you are not applying thermal paste if it had a thermal pad in there originally, (soft, sticky - almost sponge like material/ sticker usually)
i had a older laptop that used paste on Cpu but a pad on Gpu - therefore the heatsink was at a small distance from the gpu and you couldn't fill that
gap with paste - you would have to order some thermal pad for that... and if there's a gap left don't even switch it on ... it'll probably overheat and die...