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Do I need a more powerful power supply?

Last response: in Components
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May 13, 2013 3:48:03 PM

I built a new computer about a month ago and I've been having some weird problems.

First of all when I have my iPhone plugged in to charge, the computer won't turn on or off. Second, I have two external hard drives. Neither of them gets recognized by the computer and one of them causes all of the other USB ports to lose connection. As soon as I disconnect that hard drive all the other usbs reconnect. Also if i try to start the computer with the external connected it wont even power on. as soon as i disconnect the hard drive it starts to turn on. i dont even have to press the power button again. Also when I'm playing games, after a while every once in a while the computer does like I pulled the plug.

I've searched around on the forum and have not seen anything like this. I'm thinking either my mobo is broken or its the psu.

Not sure if its in my sig but my system is:

I5-3570k
2x4gb ddr3 1866
Msi hd 7850 oc'd to 1170/1250
Msi z77 mobo
128gb ssd
Antec trupower 2.0 550w (used when I got it)

More about : powerful power supply

May 13, 2013 4:06:00 PM

That psu is enough for your pc.The psu is good and efficient and it should handle easy your pc.
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May 13, 2013 4:51:17 PM

So do you know what the problem could be then?
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May 13, 2013 5:00:29 PM

Also I've noticed that its need crashing on battlefield 3 the most. If that's any help. And I mean by far. Pretty much no other game causes it to crash
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a c 133 ) Power supply
May 13, 2013 5:03:11 PM

It could be the PSU. Have you tried using a different one?
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May 13, 2013 5:05:49 PM

Its probably a rare motherboard failure.
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May 13, 2013 5:07:28 PM

No I wanted to check before I swap out the psu. I'll try swapping with my corsair 650w in my other comp and see what happens. If that doesn't go it its prob the mobo? That sucks...
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May 13, 2013 5:50:42 PM

So I just noticed that when the computer dies during games, if I leave it on for about 10-15 minutes without touching anything it'll turn itself back on
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May 13, 2013 5:53:46 PM

leinad1022 said:
So I just noticed that when the computer dies during games, if I leave it on for about 10-15 minutes without touching anything it'll turn itself back on


Did you replace your PSU with the corsair one? If so, then it would be a mobo failure.
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a c 1195 ) Power supply
May 13, 2013 5:59:46 PM

The Antec TruePower 2.0 is an old design from a now discontinued series. They didn't have any PFC and only had mediocre efficiency.

If the power supply is shutting down in the middle of a game there may be a heat issue in the power supply triggering its thermal protection. The thermal protection is set to 50°C. Did you feel the power supply's case to determine if it was hot?
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May 13, 2013 6:07:36 PM

As a last solution, try underclocking your GPU back to factory clock again, see if that fixes anything.
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