I built a computer for my daughter and Its having random shutdown issues. What will happen is she will be playing and the screen will go black and the whole computer will be off. I've tried different drivers and re-installation of windows. I've also checked the event logs and I couldn't pinpoint the failure to a specific component.
Here are the system specs:
Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case
ASRock 970 EXTREME3 AM3+ AMD 970 + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
AMD FX-4170 Zambezi 4.2GHz (4.3GHz Turbo) Socket AM3+ 125W
G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900)
Rosewill HIVE Series HIVE-650 650W Continuous @40°C, 80 PLUS BRONZE
EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi) FPB 1GB 192-bit GDDR5 PCI Express 2.0 x16
I don't overclock or do anything of that nature. Can anyone please help me correct this issue?
Load UEFI Defaults from BIOS Exit menu.
DRAM Configuration (page 41 of manual)
If [Auto] is selected, the motherboard will detect the memory module(s)
inserted and assigns appropriate frequency automatically.
Change to [DDR3-1866MHz]
DRAM Timing Control
Set the first four values starting with CAS# Latency (tCL) to 9-10-9-28
So far setting the RAM clock speed and timings has worked. Interestingly enough, the ASROCK bios didn't not automatically detect the RAM correctly. It automatically selected DDR3-1600MHz. Stepped it up to 1866 as suggested and the bios automatically selected the correct timings once this was accomplished.
So far my daughter has reported no new random reboots. I'll post again if anything changes. Thanks all for your input.