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Possible PSU failure?

Last response: in Components
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March 15, 2014 1:32:37 PM

Hey all, I've had a 500 watt power supply in my rig for around 3 or 4 years now. I upgraded everything except for the PSU around 6 months ago. Was playing BF4 today and my computer completely shut off, something that had never happened before. I removed the side panel and everything inside was very hot. Whenever I try to turn it back on nothing happens or lights up. Only signs of life are the CPU fan move very very slightly, as if it were trying to spin, and my keyboard also flashes on when I flip the power switch (which is the norm). I've checked all connectors and cables, everything is fine. What do you guys think?

specs:
fx-8350
Sapphire 7950
8gb Ripjaw ram
500 watt PSU
Gigabyte 990FXA-UD3

More about : psu failure

a c 1176 ) Power supply
March 15, 2014 1:34:31 PM

What's the brand and model number of your 500 Watt PSU?

Was the AMD FX-8350 overclocked? If yes, to what clock speed and voltage?
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March 15, 2014 1:47:49 PM

ko888 said:
What's the brand and model number of your 500 Watt PSU?

Was the AMD FX-8350 overclocked? If yes, to what clock speed and voltage?


I have no idea what the PSU is. It's just a plain gray box, no markings or anything on it.
I managed to dig up the page that I bought it from (pre-built) http://www.tigerdirect.com/applications/SearchTools/ite...)

And no, the CPU is at stock speed and voltage.
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a c 1176 ) Power supply
March 15, 2014 2:26:00 PM

abouttreefiddy said:
I have no idea what the PSU is. It's just a plain gray box, no markings or anything on it.
I managed to dig up the page that I bought it from (pre-built) http://www.tigerdirect.com/applications/SearchTools/ite...)

And no, the CPU is at stock speed and voltage.


There should be a label on one side of the PSU.

Does the back of the power supply look like this (i.e. have the same pattern vent holes)?

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Best solution

a c 1176 ) Power supply
March 15, 2014 3:22:13 PM

abouttreefiddy said:
Nope, I believe I've identified the PSU. It is an Ultra LS Series 500W Power Supply
http://www.tigerdirect.com/applications/SearchTools/ite...


For a system using a single AMD reference design Radeon HD 7950 graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

Ultra LS Series 500W (ULT-LS500)
• OEM: ShenZhen RuiSheng Yuan
• maximum combined +12 Volt continuous current rating of 28 Amps
one 6-pin PCI Express supplementary power connector
• No 80 PLUS Efficiency Certification

Two signs of an insufficient PSU for your graphics card in your system configuration.

I think you've overstressed the PSU and now it's defective.
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March 15, 2014 4:06:36 PM

Wow, okay. Thanks for the info!

Do you think this would be sufficient?
http://www.tigerdirect.com/applications/SearchTools/ite...
Or should I go for something around 750 just to have a little extra headspace?

Sorry for all of the questions, PSU is really the only component that I'm pretty clueless with!
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a c 1176 ) Power supply
March 15, 2014 4:23:44 PM

abouttreefiddy said:
Wow, okay. Thanks for the info!

Do you think this would be sufficient?
http://www.tigerdirect.com/applications/SearchTools/ite...
Or should I go for something around 750 just to have a little extra headspace?

Sorry for all of the questions, PSU is really the only component that I'm pretty clueless with!


Corsair CX Series Modular CX600M (SKU# 75-002018 / CP-9020060-NA)
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating of 46 Amps
two (6+2)-pin PCI Express supplementary power connectors
• 80 PLUS BRONZE Efficiency Certification
• 3 Year Limited Warranty

That's more than enough to power your system configuration.
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!