New build with Titan X

Hi Build Experts!

Please let me know what you think of the following hardware for a new build. I'm considering bying this next week - but am I doing something wrong?

1 x Corsair AX1500i PSU (1500W)
4 x MSI NTITAN X 12GD5 - GF GTX TITAN X 12 GB
1 x MSI Z97 GAMING 5
1 x Intel Core i7 4790K / 4 GHz
2 x Kingston HyperX Savage DDR3 8 GB 2400 MHz
1 x Samsung 850 EVO MZ-75E500 - SSD 500 GB - SATA 6Gb/s
1 x Chenbro 19 4HE RM41300G EEB (RM41300-FS81)

Also, I'm not sure it's a reference card?
http://www.msi.com/product/vga/NTITAN-X-...o-overview

But gpuzoo says it is:
http://www.gpuzoo.com/GPU-MSI/GeForce_GT...12GD5.html


Any help appreciated - thank you in advance!