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Is PSU too weak for overclocking under such hardwares?

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!
9 answers Last reply Best Answer
More about weak overclocking hardwares
  1. 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
  2. Thanks for the welcome!

    The Ultra brand is quite well known I believe, perhaps they're still new into the market.
    http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=3276574&CatId=1079

    The reviews are actually pretty awesome considering it scored 4.7/5 out of 499 user reviews.
  3. You should never base your buy in the concept of other users.

    You can see here the only good PSU from that brand: http://www.plugloadsolutions.com/80PlusPowerSuppliesDetail.aspx?id=75&type=2 all those have the 80+ certification that gives you a good idea that is a good PSU.

    Your PSU isn't in that list, so, this: http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139005&cm_re=650W-_-17-139-005-_-Product is a much better PSU.
  4. 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.
  5. You can do it, but you could have problems in future.
  6. Best answer
    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.
  7. 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.
  8. Best answer selected by up69.
  9. 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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