Computer restarts during benchmark tests

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deviouslight

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Jan 5, 2014
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First, I want to thank you for taking the time to view my thread because I am in unfamiliar territory with this issue and looking for an answer.

FULL BUILD LISTED AT BOTTOM w/ links

This problem arose while using benchmark software (OOCT) although has happened before during heavy load.

When I press test, instantly upon starting the test, I hear a succession of noises from my hard drive following decrease in performance. After 3-6 of these repeated sets of noise, the computer will sometimes shutdown and attempt to restart. Sometimes it blue screens overscan for a few seconds so I cannot see any information, and other times it goes to my tv screen "no signal".

The sound begins as an abrupt loud 'zzt', an electrical sounding noise. Followed by a powering up, or spinning up noise (similar to the sound of starting the computer). I want to say it loses power momentarily and stops, then attempts to catch up by spinning up. This noise is very distinct and sounds the same each time. The noise precedes drop in performance, freezing, or nothing at all. It eventually triggers full shutdown though.

This happens and has happened in the past when my computer is under "heavy load" (intensive games). I've come to recognize the noise as a predecessor for system shut down.

I recently upgraded from Radeon 5750 to GTI 650 ti boost which is why I'm testing. Windows experience rating gave the 650 ti a 2.0, however, during the windows experience process, I heard the same click - 'charge up' starting up noise from my hard drive. I'm assuming the hard drive fault affected the scores accuracy. I have been trying to get an accurate reading to confirm if this was an upgrade. As it was a used graphics card.

ATTEMPTS TO FIX: I've tried using different SATA power / data connectors with no avail. Cleaned out heat sink and fan for my processor. Looked for blown capacitors in my power supply - I found a HARD yellow looking substance around a connector barely touching a nearby small black cylinder. It doesn't look like its stemming from the cylinder, it could just be sloppy glue.

I'm totally able to use my computer 90% of the time, it's only during extreme testing that this happens. Please help me find a solution to this, I'm willing to purchase a new hard drive or power supply to solve this problem.

Post your suggestions below, I am ready to be enlightened.

LINK TO SMART TEST for HD:
http://s30.postimg.org/ectzt0335/raw.jpg

PC BUILD:
Windows 7 64 bit
Motherboard: ASUS M4A78 Plus
Processor: AMD Phenom II X4 955 Black Edition 3.2GHz
RAM: PQI TURBO 4GB (2 x 2GB) 240-Pin DDR2
Crucial 4GB (2 x 2GB) 240-Pin DDR2
Video Card: GTI 650 1gb ti boost SC

IN QUESTION Power supply: XION PowerReal AXP-850R14N 850W (http://www.newegg.com/Product/Product.aspx?Item=N82E16817190024)

IN QUESTION Hard drive: Seagate Barracuda ST500DM002 500GB 7200 RPM 16MB (http://www.newegg.com/Product/Product.aspx?Item=N82E16822148767) purchased 5/18/2012
 
Solution
your hdd maybe is dying but i dont think it has to do anything with the restarts. also you can try benchmarking with your old gpu and see what happens.if it wont fail under stress test then its defenately your psu.
cant you borrow a psu to test (or check on a local store) before purchasing anything?
You might be tripping something inside the PSU if your consumption is spiking, or there might be something faulty in it. Other than that I'm not sure. Keep an eye an temps and put your ear by the PSU to see if you hear any clicks or whine from it when it starts going on the fritz.
 
I am not attempting to overclock, however my processor reads: 3209 MHZ - Original 3200 MHZ - 0.3% overlclock. It's hard to get temperature readings when testing, because it restarts quickly but here is a screenshot of Speed Fan temperatures and voltages while low load (currently in chrome with 3 tabs).

http://s22.postimg.org/l6gi69hox/ere.jpg

The +12v reading near the bottom is +/- ~.07 while the 5.07v is +/-.05
 
I don't intend to damage anything, and I can buy a new power supply, however when my computer works 90% of the time, it's hard to believe that's the solution. Also, the noise from my hard drive is still unexplained.
 
your hdd maybe is dying but i dont think it has to do anything with the restarts. also you can try benchmarking with your old gpu and see what happens.if it wont fail under stress test then its defenately your psu.
cant you borrow a psu to test (or check on a local store) before purchasing anything?
 
Solution
Alright, I will try this, thanks for the suggestion. I will try using my old graphics card and figure out if it is indeed the power supply. I could try a friend's power supply, but I don't know its wattage or if it's sufficient.
 
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