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| 07 Jul 2011 | #1 |
| | Hey my friends Pc turns off unexpectedly Hey my friends Pc turns of unexpectedly, i am not sure what is causing this fault, i do not think it is the CPU or RAM as that usually results in a BLUE SCREEN. I have noticed that the top of the case where the PSU is housed is way too hot, i have even opened it up and touched the PSU and it is way too hot. It even smells as if it is burning. Here is some temp and voltage readings etc. |
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| 07 Jul 2011 | #2 |
| | Well if the PSU is cranking up the ambient temperature of your rig it will turn itself off, an attempt of self-preservation from your PC  . Seeing as how cheap PSUs have become I would try replacing it, it is the mostly likely cause of your problem given the symptoms and observations you've provided. |
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| 07 Jul 2011 | #3 |
| | When you look at my attachment, does that have any clues? |
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| 07 Jul 2011 | #4 |
| | Notice on the volts bit, it is minus, what is that all about????? |
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| 07 Jul 2011 | #5 |
| | Your voltages all look fine ~to me~ the only thing that's a little high on your read-out is the temperature of your graphics card, 132F is a little toasty. |
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| 07 Jul 2011 | #6 |
| | The psu puts out negative voltages. Sounds likes you are requiring too much power than what the PSU can put out. Upgrading that would be the first start. How many/much watts is the supply rated at? And what are the specs of your friends machine? |
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| 07 Jul 2011 | #7 |
| | Mates Specs Mobo - Gigabyte GA-M720-US3 Motherboard Phenom FX Socket AM2+ nForce 720D ATX RAID Gigabit Ethernet LAN CPU - AMD Athlon™ X2 5600+ GPU - Geforce 8400gs Plus it has 4 small 80mm fans. PSU - 450 Watts. |
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| 07 Jul 2011 | #8 |
| | The GeForce 8400 GS card is slow and only needs a power supply of 250-300 watts. If the power supply smells of burning and is very hot you should consider changing it - soon. The computer is turning itself off as an act of self-preservation at the excessive heat being generated by the PSU. |
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| 07 Jul 2011 | #9 |
| | Check out this power supply calculator. It came up with recommend 284W, but I think you can fill in the specs a bit more accurately. Another thing to check is dust build up around the fans or heatsinks. Need to keep them clean. |
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| 07 Jul 2011 | #10 |
| | 
Quote: Originally Posted by xarden  Another thing to check is dust build up around the fans or heatsinks. Need to keep them clean.  |
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Hey my friends Pc turns off unexpectedly problems?
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