Will a Corsair HX 520W PSU work with my Build?

apcs13

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Hello everyone, This is Kind of an Urgent Issue!

I had a noise issue in my PC which I thought was no big dead since it was just a rickety fan but I had no cooling issues, but after replacing almost everything in my PC and checking the rest I have finally found the issue to actually NOT be a fan, but some sort of internal component in my Corsair TX650 PSU, which has been happening for a long time actually.

Naturally, I was kind of worried about my power supply making a very suspicious noise, and I removed it right away. I threw in an old Corsair HX 520W unit that I had from a relative, and that noise went away as well as some other general noises that were with that power supply. Overall, it works much better, and I will be using it until Corsair sends me a new TX650.

However, I do have some concerns about the wattage of the unit. I was told that it is a very good power supply, however that doesn't change the fact that it is only 520 watts. My system is listed in the description of my profile, which includes an overclocked (4.4 GHz) FX-6350, an overclocked 3-fan GTX 770, 2 case fans, one Cooler Master Blademaster 120 fan on my Cooler Master Hyper 212 Plus, as well as one WD Blue 1TB drive, one optical drive, and 2x4 GB of G.Skill Sniper DDR3 1600 RAM. PCPartPicker says that this config at full load will not draw more than 464 watts, yet NVIDIA recommends power supplies no less than 600W to run a rig with a 770 in it. I am typing this on said computer now with no issues so far, but I have done nothing but load up this browser page and monitor the clocks and voltages of my PC. I would like to use this as a gaming PC, since I have a few hours off tomorrow, but I do not want to risk overdrawing power.

TL;DR: Do you guys think that a Corsair HX520 520W unit will be enough to power my system, at least temporarily? And if so, what tasks am I safe to do? If not, can I at least use it to do very simple tasks like browse the web and such? Thanks!
 
For a pc with a GTX770, you need 600W. There's probably some headroom there. But I wouldn't overclock or load the pc.

The TX650 probably had 'coil whine'. No problem, just annoying. Its when one or more of the choke coils isn't staked down properly and vibrates with the change of voltage.
 

apcs13

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Are you sure? I have heard some reviews where people did tests and said that you can work with lower, and NVIDIA beefs up the numbers to make sure no one can come after them saying they put the bar too low and their GPU wouldn't work from lack of power, plus a lot of sources say that I wouldn't use all of it up. Then again, I would rather be safe than sorry.

Also, it is definitely not coil whine, I have heard coil whine before and it was certainly not it. I thought it was a messed up fan at first because that is what it sounded like, it was not very similar at all to coil whine. I don't know what the sound is, but I know it can't be good and I am sending it back as soon as I can.
 

apcs13

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Yep, I already have requested a ticket and probably will get the new PSU within the next week or so. Hopefully...

I did a bunch of calculations and research and decided to try out running a game on the PC and it worked pretty well. I think I pushed it too hard in the Battlefield Hardline Beta however because after a while of playing the game started to stutter, which I haven't encountered before.
 

apcs13

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Thank you very much for your reply, I did some intensity testing and it turns out you are right, it seems to work fine with my build. I do have a question though: if the PSU were actually inadequate, how could I tell? Would it in any way affect the framerate by, say, automatically down-clocking the GPU to conserve power? Or would the only indication be the system just shutting off?

Also what are some safety concerns (for myself and my PC) for using a power supply that is close to the border or not powerful enough to power your PC in optimal conditions, like in my case? I did some digging on this topic but could not find a conclusive answer.

Thank you very much!
 

apcs13

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Also, I am missing the second SATA power cable (as I mentioned, not a new PSU), so I have one plugged directly from the PSU to the 8-pin on my 770, and for the second one I am using a molex-SATA adapter that came with the GTX 770 with two molex leads from the PSU to connect to the 6-pin connector on the 770. Is that okay?
 

apcs13

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By neat, do you mean as in cable management and stuff inside the computer? If so, I don't really care about that right now as the management I was able to do wasn't too horrendous and I should have a new supply within the next week or two, depending on how fast Corsair is with RMAs.
 

apcs13

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OK thanks for the help everyone. I'm just not really going to use my PC until the replacement arrives because the PSU isn't really working out, and my computer crashed a lot doing things that would never crash before with sufficient power. Do you think this could have damaged other components? Last question, promise.