Computer shutting down or rebooting

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Ol_Swifty

Member
I've had my PC Specialist desktop for 6 months now with no problems, the only thing I have changed is to replace the graphics card from a GTX 670 to a 780 a few weeks ago.

Today I ran into serious problems with the PC either shutting down or rebooting. It doesn't seem to matter whether its under stress or idling. I looked into everything I could think of such as checking temperatures which were all fine, running MemTest86 which again was fine. I booted into safe mode and ran a full virus scan which was clear.

Do you think I have a problem with the PSU or motherboard or is there something else I can check?

I should add that it shuts down abruptly not safely.

Thanks for any help.
 
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Ol_Swifty

Member
Case
COOLERMASTER CM STORM ENFORCER - GAMING ENTHUSIAST CASE
Processor (CPU)
Intel® Core™i5 Quad Core Processor i5-3570K (3.4GHz) 6MB Cache
Motherboard
ASUS® P8Z77-V: PCI-E 3.0 READY, WIFI, SLI, CROSSFIREX
Memory (RAM)
8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
Graphics Card
2GB NVIDIA GEFORCE GTX 670 - 2 DVI, HDMI, DP - 3D Vision Ready
Memory - 1st Hard Disk
120GB INTEL® 520 SERIES SSD, SATA 6 Gb/s (upto 550MB/sR | 520MB/sW)
2nd Hard Disk
2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
1st DVD/BLU-RAY Drive
24x DUAL LAYER DVD WRITER ±R/±RW/RAM
Memory Card Reader
INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply
CORSAIR 750W ENTHUSIAST SERIES™ TX750 V2-80 PLUS® BRONZE (£86)
Processor Cooling
Corsair H60 Hydro Series High Performance CPU Cooler (£59)
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Wireless/Wired Networking
10/100/1000 GIGABIT LAN PORT - AS STANDARD ON ALL PCs
USB Options
6 x USB 2.0 PORTS @ BACK PANEL (MIN 2 FRONT PORTS) AS STANDARD
Operating System
Genuine Windows 7 Home Premium 64 Bit w/SP1 - inc DVD & Licence (£79)
 
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