What do I need PCIE PSU connectors for? What is a Semi-Modular PSU? Tags: Cooler Master PCI Graphics Cards Computers PCI Express Components Last response: April 16, 2013 3:00 AM in Components Share lurkingshadow April 16, 2013 2:53:19 AM Im looking at one of these three psu for my new computer. SeaSonic M12II 650 SeaSonic S12II 620 Bronze 620W COOLER MASTER GX 650W COOLER MASTER GX 750W One big difference is the two cheaper models come with two PCI-E and the others with four. Other then graphics cards what are these needed for. Also what are the other connectors used for? As well as this I was wondering what "semi modular" means? Finally what PSU would you recommend? My pc parts are (already purchased) Gigabyte GA-970A-UD3 AMD FX-8530 Sapphire HD7850 G.Skill RIPJAWS 2x4GB 1600MHz Cooler Master Centurion 6 Thanks a lot More about : pcie psu connectors semi modular psu dragox April 16, 2013 2:56:57 AM genrally you use 2 pci'e for each gpu if there high power ones. so 4 pci'e connectors are for crossfire/sli configurations. semi modular means that the cpu and motherboard connectors are wired by default, but you can pick what cables to connect for hard drives, gpu's and molex powered devices. i would recomend the cooler master 6 if you intend to crossfire, otherwise any would do. Sakkura a c 75 U Graphics card April 16, 2013 3:00:05 AM Avoid the Cooler Master GX PSUs, they're crap. Can't find your answer ? Ask ! Publish Related resources SolvedSemi-Modular PSU - Using modular PCIE connectors for better power delivery? Forum Solvedwhat is a 6+2 PCIe Connector for PSU? Forum 750W psu with only 2x6pin connectors? What can i do? Forum SolvedWhat kind of PCI-e does this PSU have? Forum What's the pinout for a PSU with BOTH 24 and 20 pin connectors? Forum SolvedPCIe PSU connectors question. Forum SolvedHelp, GTX 770, Do I use the 6 and 8-pin power connectors on my PSU labled PCI-E or do I use the adaptors? Forum What Type of Connectors are these? Changing PSU to a VS450 Forum What type of Connectors are there for PSU's? Forum What connectors goes into a hard drive and dvd drive from the PSU? Forum SolvedWhat psu do i need for 2 290's Forum SolvedI need help, I'm buying a new PSU and i need to know what is compatible with my system. Forum SolvedWhat PSU do I really need? What is the best budget cooler for OC i5 4670k to 4GHz? Forum What PSU has 4 x 8 Pin PCI-E's? Forum SolvedNeed help with what PSU I should get Forum SolvedWhat PSU do I need? Forum SolvedWhat PSU will i need to run this rig? Forum SolvedWhat PSU would I need? Forum SolvedWhat PSU do I need as calculators are varying wildly - please help :) Forum SolvedWhat type of PSU would I need? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !