Power failure, computer won't boot - Is my entire system fried?

I was gaming and my GPU, mobo and CPU were in the 70~75C range for around 30 minutes. Then the computer made a loud shrill noise and then my screen went black.
The computer made its shutting down noise but the fans kept running. I could also tell my wifi adapter was still taking power from the USB ports since it was flashing, but otherwise the computer seemed like it was off.

I played around with the power and restart buttons, but they had no effect. I was scared to pull the cord so I just left it on. After 10 minutes the fans stopped running on their own. When I turn hit the power button, the fans spin for 3 seconds and then stop spinning. After hitting the power button a few times, the fans would not spin at all.
At this point, the computer does not turn on at all.

So I'm positive their is a PSU failure at the very least. What I'm wondering if my GPU, mobo and CPU are still okay? Is there anyway to know if their fried without testing them with a power supply?
The current computer I'm on has a 300w PSU that's 7 years so I'm not going to be able to test the components with a PSU.

Can anyone tell me if my system would be fried from the above the description and my system specs?

Off Speccy-
AMD Phenom II X6 1045T 39 °C
Thuban 45nm Technology
6.00 GB Dual-Channel DDR3 @ 535MHz (7-7-7-16)
ASUSTeK Computer INC. M5A78L-M LX PLUS (AM3R2) 54 °C
HP w19 (1440x900@60Hz)
896MB GeForce GTX 260 (EVGA) 47 °C

PSU - bought in 2011 (seemed like my limited warranty just expired two months ago.. what bs)
APEX AL-D500EXP 500W ATX12V Power Supply
http://www.newegg.com/Product/Prod [...] 6817154026
7 answers Last reply
More about power failure computer boot entire system fried
  1. Only one way to find out for sure, get a new power supply :D

    If you need help finding a "quality" power supply let us know and we will get you one.
  2. Sounds like the whole things is fried, try turning it on and pissing on it to check the PSU. :) Na sounds like its just the PSU, I had one go once and a blue spark and smoke started pouring out.
  3. I hear you can bake the best cookies on fire from a power supply :D
  4. socialfox said:
    Only one way to find out for sure, get a new power supply :D

    If you need help finding a "quality" power supply let us know and we will get you one.

    Alright sounds good. What PSU brand should I go for and what wattage? I'm kinda cheap when it comes to computer parts, but I guess I've learned it pays to not be cheap when it comes to the PSU =P
    A newegg link would be great if you find a good one
    (Oh and should this request go in a new thread?)
  5. Here are my recommendations

    Generally stick to Antec, Corsair, XFX, Seasonic, PC power and Cooling, OCZ etc.
    Cooler Master is a brand you want to avoid but their silent pro series are quite good.

    Edit: No need for another thread, I'll be glad to help w/o the thread change since it is related to your original thread.
  6. Thanks man. The XFX Core is looking good with the cheapest price and 5 year warranty
  7. Good choice ;)
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