thanks alot bro...hmmm...actually i m thinking to upgrade the gpu as well but afraid of the warranty coverage stuff...any idea how warranty after upgrade by ourselves??

Corsair Neutron GTX 120GB - RM489 <- best performance but price
Plextor M5Pro 128GB - RM444 <- best overall
Kingston HyperX 3k 120GB - RM379 <- best for value but lack of warranty life

all are sandforce driven and favourited by me.
never tried samsung SSD's but i heard they are the best and reliable out there. once i tried, they are in my favourite list.

hi want to ask is haswell i7 4700mq processor can put in
m17x r4? now running i7 3610qm..

Actually I am calling tech support. They have little knowledge of what I am talking also. Always ask me wait wait wait then buy some time to ask ppl around but at the end I solve my own tru huge amount of research in google.
My problem?
1. HD failure
2. Motherboard
3. Overheat reach 90+ on loading (this not suppose to happen on new machine and i compared relatively with everyone I am getting too high)
4. Speaker
5. Keyboard key rosak
previous issue
1. Dim/dark tron light
2. Dead pixel
I think this will be my last Dell laptop althought i like their design, spec and warranty but if QC like shit no point buying