I recently built a new computer (specs listed below) but am experiencing full system lock ups at random intervals. Sometimes it will go a couple days without a single freeze, other times it will go only 10 min. The entire system freezes up, I lose all sound, video locks, and am unable to perform any commands. This can only be fixed with a hard reset. I have gone through and checked the ram, stress-tested the video card and CPU, and redone all connections to verify everything is seated correctly. The temperatures are always within a good range 40-50c. I recently did a full clear and reinstallation of windows, to which it responded with another lock up. This only happens once the computer has fully booted up and accessed windows and have never had this prior to windows starting. Any help as to what could be causing this would be greatly appreciated.
Specs:
Video- ASUS GTX760-DC2OC-2GD5 GeForce GTX 760 2GB 256-Bit
Processor- AMD FX-9590 Vishera 4.7GHz Socket AM3+
HDD- WD1003FZEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5"
MB- ASUS SABERTOOTH 990FX R2.0 AM3+ AMD 990FX + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS
Ram- G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
Power- LOGISYS Computer AT750BK 750W ATX12V / EPS12V SLI Ready CrossFire Ready
OS- Windows 8.1 Pro
Case- Rosewill THOR V2 Gaming ATX
Specs:
Video- ASUS GTX760-DC2OC-2GD5 GeForce GTX 760 2GB 256-Bit
Processor- AMD FX-9590 Vishera 4.7GHz Socket AM3+
HDD- WD1003FZEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5"
MB- ASUS SABERTOOTH 990FX R2.0 AM3+ AMD 990FX + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS
Ram- G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
Power- LOGISYS Computer AT750BK 750W ATX12V / EPS12V SLI Ready CrossFire Ready
OS- Windows 8.1 Pro
Case- Rosewill THOR V2 Gaming ATX