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Computer shuts off without warning or restart.

Last response: in Graphics & Displays
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February 21, 2012 5:59:25 PM

when i play minecraft for 20 minutes my whole computer just shuts off. no warning. no restart. just my whole system turns off , then my big white thing that all my power cords are connected to, turns back on but not the computer. its really annoying and makes me want to smash the computer to bits. anyone have a clue?

here are my Speedfan temps when playing the game and when not.

When idle (30% GPU fan speed) When on minecraft (30% GPU fan speed)

temp1: 72 temp1: 78
temp2: 42 temp2: same
temp3: -54 temp3: same
HD0: 39 HD0: same
GPU: 63 GPU: 74-79
core 0: 45 core 0: 50
core 1 : 43 core 1 : 45
core 2: 40 core 2 : 45
core 3: 40 core 3 :48
a b U Graphics card
February 21, 2012 6:13:03 PM

What exactly do you mean by "my big white thing"?
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February 21, 2012 6:13:21 PM

sketch22 said:
when i play minecraft for 20 minutes my whole computer just shuts off. no warning. no restart. just my whole system turns off , then my big white thing that all my power cords are connected to, turns back on but not the computer. its really annoying and makes me want to smash the computer to bits. anyone have a clue?

here are my Speedfan temps when playing the game and when not.

When idle (30% GPU fan speed) When on minecraft (30% GPU fan speed)

temp1: 72 temp1: 78
temp2: 42 temp2: same
temp3: -54 temp3: same
HD0: 39 HD0: same
GPU: 63 GPU: 74-79
core 0: 45 core 0: 50
core 1 : 43 core 1 : 45
core 2: 40 core 2 : 45
core 3: 40 core 3 :48



Change your Surge protector or make sure it is plugged all the way into wall is where I would start to look first.
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February 21, 2012 6:20:43 PM

the big white thing is the "surge protector". because it has like 3 black cords pluged into it along with the router power cord.
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a b U Graphics card
February 21, 2012 6:24:07 PM

try to bypass your surge protector and see what happens
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February 21, 2012 6:24:43 PM

its plugged in all the way/
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February 21, 2012 6:24:56 PM

how do you do that
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a c 195 U Graphics card
February 21, 2012 6:26:35 PM

Your symptoms are common to an overstressed and/or junk PSU. Please provide your system specifications, including the brand and model (not just wattage) of the PSU.
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February 21, 2012 6:30:56 PM

its a dell studio XPS 435mt computer with a 475 watt Dell power supply. thats the most details i can find
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February 21, 2012 6:31:33 PM

its the stock power supply for the 435mt
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a c 195 U Graphics card
February 21, 2012 6:38:54 PM

Stock Dell PSUs may not be junk (else they'd get killed on warranty claims), but they tend to be minimal. Did you upgrade the video card? What video card and CPU does it have? Any other upgrades?
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February 21, 2012 6:40:36 PM

no upgrades. just bought it and thats it. it came with a ATI radeon HD 4850. made by ATI . it has a i7 bloomfield CPU 920 and 4GB of RAM.
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a c 195 U Graphics card
February 21, 2012 6:48:26 PM

How old is it? Perhaps age has taken its toll. I would suggest replacing the PSU. It may be wandering out of spec as it shuts off, and may damage your system. A quality 430W-500W PSU would be sufficient. Look for full range active PFC (no little voltage switch) and some level of 80+ certification for efficiency. Seasonic, Antec, Corsair, XFX, and Enermax/LEPA are among the better brands. NEW models by FSP (e.g. Aurum), NZXT (Hale) and Rosewill (Hive, Capstone) are also decent.
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February 21, 2012 7:59:45 PM

thats not gonna happen. i was hoping on an answer that i dont have to spend money on accomplishing.
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a c 195 U Graphics card
February 21, 2012 8:01:56 PM

You might try severely underclocking the HD4850 to see if that brings power use down enough to keep it stable.
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