PC turns itself off?

[icecreamterror]

My Pc has started turning itself off after about 10mins of playing PR9......?

It has been fine with all the other ones todate.

Thought it may be a over heating issue so check the temps and everything seems fine:

Temperatures
Motherboard 26 °C (79 °F)
CPU 40 °C (104 °F)
CPU #1 / Core #1 36 °C (97 °F)
CPU #1 / Core #2 36 °C (97 °F)
CPU #1 / Core #3 36 °C (97 °F)
CPU #1 / Core #4 36 °C (97 °F)
MCP 45 °C (113 °F)
Aux 40 °C (104 °F)
GPU 47 °C (117 °F)
GPU Memory 39 °C (102 °F)
GPU Ambient 36 °C (97 °F)

cant see anything there to set the alarms off, or warrent an auto shutdown.....anyone think of something eles it could be?

here is some more info on the PC....if that helps?

Computer:
Computer Type ACPI x64-based PC
Operating System Microsoft Windows 7 Ultimate
OS Service Pack -
Internet Explorer 8.0.7600.16385
DirectX DirectX 11.0

Motherboard
CPU Type QuadCore AMD Phenom X4 Black Edition 9950, 2600 MHz (13 x 200)
Motherboard Name ASRock K10N78 (3 PCI, 2 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM, Audio, Video, Gigabit LAN)
Motherboard Chipset nVIDIA GeForce 8200, AMD K10
System Memory 4096 MB (DDR2-800 DDR2 SDRAM)
DIMM1: 2 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz)
DIMM3: 2 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz)
BIOS Type AMI (02/05/09)
Communication Port Communications Port (COM1)

Display
Video Adapter NVIDIA GeForce GTX 260 (896 MB)
Video Adapter NVIDIA GeForce GTX 260 (896 MB)
3D Accelerator nVIDIA GeForce GTX 260
Monitor Mitsubishi Diamond Plus 92 [19" CRT] (012101735)

Multimedia
Audio Adapter Realtek ALC888/1200 @ nVIDIA MCP78 - High Definition Audio Controller

Storage
IDE Controller Standard Dual Channel PCI IDE Controller
IDE Controller Standard Dual Channel PCI IDE Controller
Storage Controller ANJOVP5M IDE Controller
Floppy Drive Floppy disk drive
Disk Drive WDC WD1600SD-01KCC0 ATA Device (149 GB, IDE)
Optical Drive HL-DT-ST DVDRAM GSA-4167B ATA Device (DVD+R9:8x, DVD-R9:4x, DVD+RW:16x/8x, DVD-RW:16x/6x, DVD-RAM:5x, DVD-ROM:16x, CD:48x/32x/48x DVD+RW/DVD-RW/DVD-RAM)
Optical Drive HL-DT-ST DVD-ROM GDR8163B ATA Device (16x/52x DVD-ROM)
Optical Drive OVK I34PYFK1UF0T SCSI CdRom Device
SMART Hard Disks Status OK

Input
Keyboard Standard PS/2 Keyboard
Mouse HID-compliant mouse

[xxcarpathia]

Check your voltages on your motherboard, especially your 3.3v

If its not in range, it could be a bad power supply or you might have a burnt pin on the power plug that goes into your motherboard. Ive had this problem before and it turned out to be exactly this.

The 3.3v is what your core uses, and if it doesnt have the correct voltage it will cause the computer to shut off instantly. The fact that it turns off when playing pr might be cause of the load the game puts on the system.

What power supply do you have??

[icecreamterror]

Hi xxcarpathia,

Its a 6 month old Alpha Power Supply 850W Single Fan
Alpha Power Supply 850W Single Fan £24.54 :: UKDVDR.co.uk

How should i test the voltages on my motherboard? (do you mean, jumper the power-on to ground, and then test the PSU pins with a multi meter?

Thanks for the assistance

[Napoleon_TR]

use River Tuner.

[icecreamterror]

use River Tuner.

to test voltages on my motherboard, hows that done?

[icecreamterror]

Check your voltages on your motherboard, especially your 3.3v

If its not in range, it could be a bad power supply or you might have a burnt pin on the power plug that goes into your motherboard. Ive had this problem before and it turned out to be exactly this.

The 3.3v is what your core uses, and if it doesnt have the correct voltage it will cause the computer to shut off instantly. The fact that it turns off when playing pr might be cause of the load the game puts on the system.

What power supply do you have??

Im getting this reading in EVEREST
Voltage Values
CPU Core 1.32 V
+3.3 V 3.36 V
+5 V 5.26 V
+12 V 12.36 V
+5 V Standby 5.02 V
GPU Vcc 3.32 V


hows it looking?

[Malchuth]

For tweaking Voltages you might consider "RM Clock Utility".
There's advice on how to use the tool in the forums of it. It might help you.
It ain't very hard, takes a couple of minutes to read into it.

Either way, you might at least consider to open up and clean your PC (especially the fans).

[icecreamterror]

For tweaking Voltages you might consider "RM Clock Utility".
There's advice on how to use the tool in the forums of it. It might help you.
It ain't very hard, takes a couple of minutes to read into it.).

Dont know if the Voltages need tweeking????

Either way, you might at least consider to open up and clean your PC (especially the fans).

The pc is Spotless....no dust blocking fans or heatsinks, gave it a very good clean last nigh with a can of air.

[icecreamterror]

BUMP ops:

[icecreamterror]

Anyone?

still getting this when playing games