Thanks for the amazing and detailed reply, Vann
Do you think using two of these Aerocool XPredator Gold 1000W Modular would be a viable alternative? they would have 8 pcie connectors in total.
http://www.coolmod.com/aerocool-xpredator-80-plus-gold-1000w-modular-fuente-psu-precioMostly I can access these locally
Also, one question about the splitters, since I never used these. are they meant to be connected directly to the PSU vga slots so they can power 2 GPU with one connector? are they different to the usual regular pci-e cables you usually get with PSUs? excuse my ignorance
I would strongly suggest that you go with a PSU with its guts originally manufactured by FSP, Seasonic, Super Flower, etc. Upper-end Corsair and EVGA PSUs have one of those as the OEM (those aren't the only two reputable brands, though). I wouldn't use an Aerocool PSU for any build, let alone a 24/7 mining system. They just don't have a great reputation for selling reliable units.
Regardless, no matter what brand you go with, you just might end up with a dud unit, so be careful.
Another thing to note is that running a dual PSU system creates an additional point of failure. If either PSU goes down, you'll have an issue. (If the primary one fails, the entire rig is down, and if the secondary one goes down, the cards on the other PSU may or may not be affected.) I would not trust one Aerocool PSU for mining, let alone TWO in a non-redundant configuration.
Oh, and don't forget to double-check that you've balanced the load correctly between your PSUs. Just to be clear, the 24-pin PSU splitter cables aren't enough to combine the capacities of the two PSUs; distributing the load well remains your responsibility.
The 8-pin splitters Vann linked simply take one male 8-pin PCIe connector from the PSU, and give you two, effectively letting you use that one connector from the PSU to supply power to two 8-pin connections. (Don't go overboard with splitters.)
