Possible PSU failure?

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abouttreefiddy

Honorable
Aug 23, 2013
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10,510
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
 
Solution
ko888


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...
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abouttreefiddy

Honorable
Aug 23, 2013
12
0
10,510


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/item-details.asp?EdpNo=1114374&CatId=114)

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

abouttreefiddy

Honorable
Aug 23, 2013
12
0
10,510
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ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


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)?

17-154-026-S01
 
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ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


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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Solution
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


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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