Hi there,
Im having hard time with automatic shut downs on my 5 year old pc which was built by myself as per spec:
GA-Z77-D3H Socket 1155
i5 3570K (Stock)
Hyper 212X Cooler (replaced stock)
Ballistix Tactical 16GB Kit (8GBx2) DDR3 1600 MT (replaced Corsair vengance)
AMD 6870 1 GB MSI
Antec 620w high current gamer PSU
Samsung Evo 850 (replaced OCZ Agility 3)
I originally had this issue about 8 months ago when my PC just shutdown by itself, no warning just as if the power was cut.It then got caught in a boot cycle,
it would just power for a few seconds, cpu fan and PSU fan would run then stop and repeat but inbetween it would run for a little bit longer but nothing would display on monitor.
I ended up taking the pc apart and just testing the motherboard with the power supply using a screw driver to boot it. Eventually i got to a screen which informed me my bios was corrupt and it restored using the backup bios.
After this the Pc worked fine no probles at all until now, but I didnt get to the bottom of why it happened.
So now at present I started getting random shutdowns again but this time I was able to boot back up and use the computer for a while before it shuts down again.
However sometimes it gets stuck in a loop like above and I figured out (searched on here!) how to force the motherboard to reflash the bios which I assume gets corrupted from the constant shutdowns.
I have done the following without success:
I used memtest and windows memory diagnostics which pointed to an errors one one of my corsair sticks, which i have replaced with Ballistics tactical ram so am pretty confident its not this.
I have used XMP to set ram timings and manually.
I also replaced the original SSD and installed windows from fresh so guess again rules out possible software/driver/virus issues.
I have removed the GPU from motherboard and it still shuts down.
Cleared CMOS and replaced the battery.
Removed motherboard from case, tested with PSU only and 1 Stick of Ram
I have removed CPU cooler, reinstalled CPU, thermal paste (pea amount) and reinstalled the cooler.
Rechecked every connection when I reinstalled mother board.
Flashed Bios to most recent available and 1 previous.
Once on PC I have stress tested the PC with prime 95 and at stock 3.8ghz I am around 57 max temp so not a cooling issue. Strangely it seems to happen when doing less intesive tasks such as browsing. (could just be random)
Used a different cord to power PSU.
Any idea what this could be?
I have not tried another PSU as I do not have access to another one anyone close who may have one spare, but will buy a new one if this is the fix.
Also another strange thing I figured out! I am currently on the affected PC using Notepad to type this and the instead of the PC shutting down straight away it asks me if I want to close Notepad. If I click cancel it doesnt shutdown!!
It lets me get on with it for a few mins then repeats this. Strange! If I was on CS Go or a browser it would just close the programmes and shut down down.
Hope I have provided as much info, I've took a few pics with my phone of HW Monitor if this is of help I will upload.
Thanks
Im having hard time with automatic shut downs on my 5 year old pc which was built by myself as per spec:
GA-Z77-D3H Socket 1155
i5 3570K (Stock)
Hyper 212X Cooler (replaced stock)
Ballistix Tactical 16GB Kit (8GBx2) DDR3 1600 MT (replaced Corsair vengance)
AMD 6870 1 GB MSI
Antec 620w high current gamer PSU
Samsung Evo 850 (replaced OCZ Agility 3)
I originally had this issue about 8 months ago when my PC just shutdown by itself, no warning just as if the power was cut.It then got caught in a boot cycle,
it would just power for a few seconds, cpu fan and PSU fan would run then stop and repeat but inbetween it would run for a little bit longer but nothing would display on monitor.
I ended up taking the pc apart and just testing the motherboard with the power supply using a screw driver to boot it. Eventually i got to a screen which informed me my bios was corrupt and it restored using the backup bios.
After this the Pc worked fine no probles at all until now, but I didnt get to the bottom of why it happened.
So now at present I started getting random shutdowns again but this time I was able to boot back up and use the computer for a while before it shuts down again.
However sometimes it gets stuck in a loop like above and I figured out (searched on here!) how to force the motherboard to reflash the bios which I assume gets corrupted from the constant shutdowns.
I have done the following without success:
I used memtest and windows memory diagnostics which pointed to an errors one one of my corsair sticks, which i have replaced with Ballistics tactical ram so am pretty confident its not this.
I have used XMP to set ram timings and manually.
I also replaced the original SSD and installed windows from fresh so guess again rules out possible software/driver/virus issues.
I have removed the GPU from motherboard and it still shuts down.
Cleared CMOS and replaced the battery.
Removed motherboard from case, tested with PSU only and 1 Stick of Ram
I have removed CPU cooler, reinstalled CPU, thermal paste (pea amount) and reinstalled the cooler.
Rechecked every connection when I reinstalled mother board.
Flashed Bios to most recent available and 1 previous.
Once on PC I have stress tested the PC with prime 95 and at stock 3.8ghz I am around 57 max temp so not a cooling issue. Strangely it seems to happen when doing less intesive tasks such as browsing. (could just be random)
Used a different cord to power PSU.
Any idea what this could be?
I have not tried another PSU as I do not have access to another one anyone close who may have one spare, but will buy a new one if this is the fix.
Also another strange thing I figured out! I am currently on the affected PC using Notepad to type this and the instead of the PC shutting down straight away it asks me if I want to close Notepad. If I click cancel it doesnt shutdown!!
It lets me get on with it for a few mins then repeats this. Strange! If I was on CS Go or a browser it would just close the programmes and shut down down.
Hope I have provided as much info, I've took a few pics with my phone of HW Monitor if this is of help I will upload.
Thanks
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