Closed 4 pin Tags: Power Supplies Connection Computer Motherboards Components Last response: December 15, 2010 10:57 AM in Components Share ahumphers91 December 14, 2010 6:30:58 PM I borrowed a PSU to test my computer, but it is an older PSU. It doesn't have the separate 4 pin plug to connect to the motherboard, will it still run?? I actually tried this, it started but no booting. Do i have to buy a new PSU? More about : pin Best solution Psychoteddy December 14, 2010 6:32:14 PM That's your CPU power connector that's missing. No, the system will not boot without this. Share ahumphers91 December 14, 2010 6:37:23 PM Best answer selected by Ahumphers91. Score 0 Related resources 20+4 Pin Connector Won't Snap Into Place - Forum 4-8 atx pin - Forum Computer only remains on without 4 pin power cable for CPU - Forum 4 Pin PSU with ASUS M5A97 (8 Pin) and AMD FX8320 is it possible? - Forum 4 pin power splitters - Forum Can't find your answer ? Ask ! Get the answer ahumphers91 December 14, 2010 6:38:11 PM Damn, I figured it was for the cpu power, wished I was wrong Well, looks like it's off to newegg.com to grab one. Score 0 Maziar a b ) Power supply a c 135 V Motherboard December 15, 2010 10:57:36 AM This topic has been closed by Maziar Score 0 Can't find your answer ? Ask ! Publish Related resources Solved4 Pin connector vs 3 Pin connector Forum Solved20+4 ATX into 24 Pin? Forum Solvedcan i connect 4 pin psu to 8 pin cpu Forum Solvedhow to connect 4pin cpu power connector with Corsair VS550 550 Watt PSU Forum SolvedSplitter and extender : 3pin or 4pin ? Forum SolvedHow to slow down 4 pin fans Forum Solved4 pin Y adapter with 3 pin fans Forum Solved20 + 4 Pin Connector Forum Solved4 pin fan speeds Forum SolvedFan headers 3-pin/4-pin Forum SolvedHow to connect two 4-pin case fans to one case fan port on the mobo? Forum SolvedQuestion regarding 3pin and 4pin system fan settings Forum SolvedIs it okay to plug in a 3-pin case fan plug into a 4-pin socket on my mobo? Forum SolvedWill 4 or 6 pins work for my 8 pin CPU power connector? Forum Solvedmolex to 4pin CPU connector Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !