technicallyartistic wrote:
Here's an image of the drive.
technicallyartistic, you will want to keep that RAID0, maybe upgrade the individual M.2's to higher capacity / speed units down the road, but for now, they are as important to the value of the JZ as the 880m is, perhaps more so because everything uses IO, and to get peak performance you need to remove the IO bottleneck, and RAID0 does that.
CrystalDiskMark results from my JH (predecessor to the JZ) with RAID0 2 x 128GB M.2 SATA drives - just like yours:

Here is what a single 2.5" Samsung 840 Pro 512GB gets in the 2nd Bay of the JH:

Even the fastest SSD can only go as fast as 1 SATA III port, but 2 SATA III ports in a RAID0 can go up to 2x as fast.
The 2 x 128GB M.2 SATA SSD speed is good, but they aren't the fastest M.2 SATA cards available.
Put in a couple of Crucial M550 512GB's in a RAID0 configuration and get 2x the single SATA III speed.
I wish I had a RAID0 card in the 2nd Bay too
🙂There are 3 SATA III ports, and 1 SATA 1 port (optical drive), most G750's only have 2 SATA III's, some only have 1 SATA III and 1 SATA II port.
Your JZ is the top of the line, enjoy the added speed from the RAID0, and put that other SSD in the 2nd Bay, and put the spinning drive into an external USB 3.0/SATA III enclosure. That will also remove the heat generated from the spinning drive from the laptop.
Here is what my 1TB performance looks like in an external USB 3.0 enclosure, hardly worth using, compared to even a single SSD throughput:

If you do end up upgrading your M.2 SATA SSD's, make sure to not get one of the new PCIE M.2's, they are faster, but not compatible with the JH/JZ M.2 SATA ports.
Please let us know how it works out for you
🙂