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Is PSU too weak for overclocking under such hardwares?

Last response: in Overclocking
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February 15, 2011 10:25:10 AM

So I've been thinking of overclocking this i5 to around 3.7ghz, but the PSU I have at the moment could already be on the edge of its limits. So please I need help :( 


Intel Core i5 750 - Stock@2.67ghz
Corsair H50 watercooler
EVGA P55 FTW
4GB 1600 Gskill rams
MSI GTX560 factory overclocked@880/4200
2 HDDS
7 Case fans, already turned off 2, which leave 5 running

PSU: Ultra LSP550 Watts.
Input Voltage: 115 ~ 230

+3.3V: 22 A

+5V: 32 A

+12V 1: 30 A

-12V: 0.6 A

+5VSB: 2 A


I'm lost :(  Thanks for helping me!
a c 159 à CPUs
a c 288 K Overclocking
February 15, 2011 11:13:05 AM

Hi and welcome to Tom's forum.

I'd go for a trusted PSU, Seasonic, Corsair, Antec or XFX are very good brands. 650W for your rig with single GPU or 750W for 2-Way SLI
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February 15, 2011 11:40:18 AM

I do know those PSUs are a better product when compared to mine, but I really don't want to spend the money unless I have to; Cause if my current PSU allows me to overclock the i5 to around 3.7GHz then I wont need a new PSU.
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a c 159 à CPUs
a c 288 K Overclocking
February 15, 2011 11:47:31 AM

You can do it, but you could have problems in future.
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a c 133 à CPUs
a b K Overclocking
February 15, 2011 2:06:29 PM

I agree with Saint your PSU is a bit on the weak side. A quality 550 watt unit should have at the very least 36 amps on the 12 volt. The LSP550 only has 30 which is only 360 watts. Modern computers draw just about all their power from the 12 volt rail and why a company that is supposedly a good brand would cheat their customers by only giving you 360 watts of real usable power. I will let you decide.
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February 15, 2011 2:09:57 PM

Yes, I know by running my hardwares and recently added GTX560 with a factory overclock is already pushing it; Guess no overclocking until I get a new PSU.
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February 15, 2011 2:10:13 PM

Best answer selected by up69.
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a c 133 à CPUs
a b K Overclocking
February 15, 2011 2:13:20 PM

up69 said:
Yes, I know by running my hardwares and recently added GTX560 with a factory overclock is already pushing it; Guess no overclocking until I get a new PSU.


Yes I would wait good choice. It can be very bad for your hardware if the voltage drops to low especially your video card.
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