Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Could I replace the 2x128GB SSD RAID-0 with a regular 256GB? I read/saw somewhere that they cant be replaced?
Document: I was sure then and there that this was something that will take performance to the next level (I am an Infrastructure related techie). Then there was the new Alienware ALW17, with many different configurations, also sporting an SSD (in RAID 0) config, but at exceptionally high prices (but I was ready to pay the price for the performance).
one is a SSD that is actually 2 M2 SSD chips running in tandem on one drive space in RAID 0. the other is a 1TB HDD that comes already partitioned into two 512gb drivesto be completely honest, i weighed between all of the ROG G750 models and specifically chose the JH because the cost of upgrading to be even close to it was more expensive than buying the JH outright.
The RAID-0 mSATA array that the OS is on has a number of partitions on it for various recovery needs and other machine related reasons I am sure. The performance is exceptional. The usable partition on the machine for the C drive is 95GB in size and has only 40 or so remaining after preinstalled software and other things that one may wish to install.
Fastest machine I have dad. I bumped it up to 32GB RAM and added a 1TB Samsung 840 Evo SSD for the 2nd drive - storage. This thing is incredible. After Effects and video encoding is very snappy, and gaming is top notch. RAID SSD boot drives fly. Likely one of the best gaming rigs, but I use it primarily for productivity.
The subwoofer adds some presence, but again, not as rich as some have mentioned in reviews (at least in my experience).Networking: In my testing I was able to mostly saturate my 25Mb/s broadband download speed with the Killer wireless adapter. I could not adequately test the range as I am close to my access point. The Gig Ethernet adapter also worked well and is what I use mostly.Ports: There are 4 USB 3.0 ports which I have all used in my present configuration.
The specs for this computer are pretty impressive on paper and fortunately yield actually impressive performance. To get better performance in a laptop would require spending 4-5k on an sli setup - and that could end up being a mixed bag. I've had my JH for 3 months and I must say its a great overall computer, not just a great gaming computer. The raid 0 configuration SDD, 24gb RAM and monster 780m complement each other well. The CPU is good, not great.
theyre on the F keys which is a big happy feature over my last laptopwhile i do plug my audio into my bedroom surround sound system, even just raw laptop speakers sound AMAZING!there is very little bloatware to deal withsome have asked if you can upgrade the GPU and/or CPU in the future. if im correct, the CPU and the GPU on all G750 laptops are both soldered onto the main board. while this means they cant be replaced, it also means they cool a LOT more efficiently.
But this isn't bad. Its fine in all other things. Its nice that it doesn't glare or reflect light but for me, when you play a game that's really, really dark, the screen seem to get even more dark with it to the point that I cant see anything. but when the game lights things up, so does the screen, its kind of strange ( hard to put in words ).2.
I am also suspicious about the supposed 140 deg viewing angle, as I can move as little as about a foot off center and the display changes significantly.I will update when I hear from ASUS.Update: 2/17/2014Unit returned from ASUS. They replaced the motherboard and the LCD panel.Result?
Having spent a few weeks researching and comparing this model to other GTX 780M equipped machines, I chose this model for the cost. It was less expensive then some of the competition for the included feature set. I read all the reviews here on Amazon and other places before making my decision. I will now share my experiences thus far with the system.
Answer: Any internal hard drive is swappable, why couldn't it be changed via an upgrade. Firmware problems? The ram and the hard drives are completely accessible to a qualified technician.