18A on 12V rail 550Ti?? Tags: Power Supplies Gtx Power Components Last response: October 16, 2011 8:14 PM in Components Share NoobNeb October 16, 2011 5:29:19 PM I have a 'no-brand' 400W PSU with a 12V rating of 18A. What would happen if I used it to power a GTX 550Ti that requires 24A on the 12V rail?? (In other words how big would the explosion be?? ) More about : 18a 12v rail 550ti MrQZETOL October 16, 2011 5:38:18 PM I'm guessing that if you're just underpowering it the gfx card would not run as good as it would with the proper amperage NoobNeb October 16, 2011 6:15:47 PM So technically it could be fine?? Related resources 12V rail of 18A is enough to run shapphire hd 7770 1gb? - Forum +12V rail of 18A is enough for gtx 650ti - Forum Is 18A on the 12V rail enough for Radeon HD6570? - Forum PSU w/ 18A on 12V rail for GTX 650? - Forum PowerColor HD6790 on 18A 12V rail - Forum Can't find your answer ? Ask ! Get the answer hairystuff a b ) Power supply October 16, 2011 6:19:56 PM with 3d running the machine could become unstable lilotimz a b ) Power supply October 16, 2011 6:36:44 PM Other than a high chance the power supply will just plain out fail and give out some cancerous smoke alongside a good firework show and a pc that has everything fried. Not much. 13thmonkey a b ) Power supply October 16, 2011 6:46:20 PM it depends, it could fail in such a way as to damage other components NoobNeb October 16, 2011 6:54:14 PM Right I won't risk it so 13thmonkey a b ) Power supply October 16, 2011 7:06:07 PM i'm trying to help somone at the moment who was running a system off a 250W PSU that was at least 50W short in terms of 12V power, currently nothing works except fans, i'm loaning him a PSU and crossing fingers for him.... beenthere a b ) Power supply October 16, 2011 8:14:20 PM More than likely the PC will crash when you put the Vid card under load. Some power sensing Vid cards may not boot at all with such low amps. available on the 12v rail. Can't find your answer ? Ask ! Publish Related resources GTX 470 SLI - 4x 12v Rail @ 18A each? Is it enough? Forum 500w psu with 2 18a 12v rails enough for GTX 260? Forum Enermax 535w dual 18A 12v rails enough for 8800gtx? Forum SolvedWill my 500W with 18a on 12v be enough for a GTX 750ti or R7-265? Forum SolvedMy PSU is 450 with 2 12V 18A will it be good for gtx 650 ti Forum Will A GTX 750Ti work on a (PC6037) 300W 12V - 18A Power Supply? Forum SolvedPSU 12V rail spiked to 20V Forum SolvedCorsair CX750 or EVGA SuperNOVA 750 B1 for Radeon 7950 CF? (plus 12v rail questions) Forum SolvedPSU 11.38V on 12V Rail causing freezes? Forum SolvedIs single 12v 55amp rail a good choice? Forum SolvedAI suite saying 12V+ rail at 0V Forum SolvedEVGA 770 SC needs 42 amps? on 12v Rail? Forum Solved16A +12V rail enough to run a radeon R7 250 ? Forum Solvedgood video cards that will run on my power supply? Amps on 12v Rail are a bit low it seems Forum SolvedIm building a computer, and the video card im using is the nvidia gtx 770, which requires a 12v rail at 42 amps. The power sup Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !