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Replaced blown PSU, computer shutting down after a few minutes.

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  • Computers
  • Components
Last response: in Components
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May 22, 2014 6:17:28 AM

AMD Phenom II X4 965
Asus M4A88TD-V
GeForce 9800GTX+
4g DDR3 RAM
1 DVD-RW
2 SATA HDD
Windows 7

I had a 550w OCZ Fatal1ty PSU and it had been running fine for a few years. It went kaboom a few days ago, complete with the lovely smell of burning. I had an older 550w Antec Truepower 2.0 PSU from my previous computer. I put it in and hooked everything up. My computer boots up and will stay on for a few minutes and then shut down. At one point, it gave me Asus' oversurge protection error (I believe that's what it was called). Any other time it just shuts down. Cable-wise, my blown PSU had 8 pins for the EATX12v connection, whereas the Antec only as 4. Beyond that, the rails and everything I'm pretty dumb on.

Could that be the problem, possibly solved with an 4>8 pin adapter? Or is it possibly something else that got fried when the PSU went?

When I checked power requirements on a few sites, Asus' site said I needed around 600w for my build (?!?!) whereas others said around 340w.

I'm kind of at a loss here and hoping this can be solved as cheap as possible, maybe with a new PSU as opposed to a new everything.

More about : replaced blown psu computer shutting minutes

May 22, 2014 6:34:50 AM

If you get "surge protection" messages and randomly reboots with/without this error, it either means that the PSU's output power is going out of spec or components have been damaged.

Your build's real power draw should be under 300W. 600W would likely be the GPU manufacturer's grossly inflated recommendation.
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May 22, 2014 6:25:30 PM

InvalidError said:
If you get "surge protection" messages and randomly reboots with/without this error, it either means that the PSU's output power is going out of spec or components have been damaged.

Your build's real power draw should be under 300W. 600W would likely be the GPU manufacturer's grossly inflated recommendation.


This probably sounds stupid, but what do you mean by the output power going out of spec?

I assumed the 600w was inflated in some way since all other resources were saying much lower.
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May 22, 2014 6:32:24 PM

The TruePower 2.0 was average for its day, its day was 8 years ago. It was made with lower tier caps so even after 8 years on a shelf it would be somewhat questionable as to its life, if it saw a reasonable amount of use early on in its life then it likely just can't do it anymore. Its time to move to a modern power, preferably one built in this decade.
http://www.jonnyguru.com/modules.php?name=NDReviews&op=...
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Best solution

May 22, 2014 6:51:02 PM

digitaldeadstar said:
This probably sounds stupid, but what do you mean by the output power going out of spec?

The "Anti-Surge" protection monitors the PSU voltages coming from the ATX/ATX12V connectors and compares those against predetermined limits. If output regulation, ripple and noise causes voltages to exceed those limits, some form of protection circuitry gets tripped. One of the most common protections is SCRs (Silicon Controlled Rectifiers) getting triggered to cause a dead short between power supply rails and ground to sink over-voltages and force the PSU to shut down hopefully before damaging components.
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May 23, 2014 11:08:18 AM

Thanks for the replies, guys. I'll look into a new PSU and hope that's the only issue I'm having!
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May 23, 2014 11:17:13 AM

digitaldeadstar said:
Thanks for the replies, guys. I'll look into a new PSU and hope that's the only issue I'm having!


You should get a new PSU sooner than later if you can. If you keep running that PSU there is the off chance it will damage your motherboard.

Seasonic/XFX are the best, you should look for a 650W, or 550W minimum.
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May 23, 2014 1:20:30 PM

Adroid said:
digitaldeadstar said:
Thanks for the replies, guys. I'll look into a new PSU and hope that's the only issue I'm having!


You should get a new PSU sooner than later if you can. If you keep running that PSU there is the off chance it will damage your motherboard.

Seasonic/XFX are the best, you should look for a 650W, or 550W minimum.


Oh, I haven't ran it since I've had problems with it. Once I couldn't resolve it on my own, I unhooked everything until I can figure out a solution.

I was considering a new build within the next year or so, so I will definitely get something that I can migrate over into that.
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