Computer is shutting down randomly

amoretam said:

Hi, thanks for reply.
I always check cpu temperature with CPUID.
it is always good

thanks

What temperature does CPUID tell you? And is that temperature at idle? Or under load?

Just my two cents worth I am assuming it is a Sandy Bridge build?? I would like to see the voltage rails on the PSU now I use this to find those and I know it is not a perfect program as many tell me but I have yet to fault it, and when I have cause to doubt the findings I use a digital multimeter to find out for definite. That I have done anyway in the past when checking out the HW Info software.
Having said that to let you know where I am coming from
Using HW Info
PART A:
You can test the volts on the PSU with HW Info HWiNFO - Download < download the right bit version and close the right hand window select Sensors and scroll down to the power section where you will see what the volts are doing see my pic. In my pic the section (Nuvoton) with VBATT as a dead give away you are in the section for the rail voltages. There are other section titles and one that pops up often is ITE (sometimes the usual one for Gigabyte boards)
Now the voltage on the different rails have to be within 5% =+/- of what is required or the machine will not work properly if at all.
Limits +/- (minimum - correct - maximum)
12v1 = 11.4 - 12 - 12.6v
12v2 = 11.4 - 12- 12.6v
5v = 4.75 – 5 - 5.25v
3.3v = 3.135 – 3 – 3.465v
-12v = -10.80 - -12 - -13.20v
+5VSB = 4.75 – 5 - 5.25v
The Power good signal voltage at pin 8 on the 24 pin plug (grey cable) should be the same as the 5v rail reading/s
See this for the rail voltage info
PSUs 101: A Detailed Look Into Power Supplies (Section 2.)
The original right hand window shows the machine running and is handy for that but for looking at the components in some detail close it and use the main left hand side panel
FOR OTHER COMPONENTS
PART B:
Open each small square with + in it on the section the components are in and then click on the individual component/s (it will highlight in blue) - in the right hand side will appear all sorts of details including brands speeds and other essential info that particular device. See pic for example.

Now at least this will eliminate any possible cause from a faulty PSU which is so often overlooked when finding computer faults as when it goes south so does everything.

ICIT2LOL said:

Just my two cents worth I am assuming it is a Sandy Bridge build?? I would like to see the voltage rails on the PSU now I use this to find those and I know it is not a perfect program as many tell me but I have yet to fault it, and when I have cause to doubt the findings I use a digital multimeter to find out for definite. That I have done anyway in the past when checking out the HW Info software.
Having said that to let you know where I am coming from
Using HW Info
PART A:
You can test the volts on the PSU with HW Info HWiNFO - Download < download the right bit version and close the right hand window select Sensors and scroll down to the power section where you will see what the volts are doing see my pic. In my pic the section (Nuvoton) with VBATT as a dead give away you are in the section for the rail voltages. There are other section titles and one that pops up often is ITE (sometimes the usual one for Gigabyte boards)
Now the voltage on the different rails have to be within 5% =+/- of what is required or the machine will not work properly if at all.
Limits +/- (minimum - correct - maximum)
12v1 = 11.4 - 12 - 12.6v
12v2 = 11.4 - 12- 12.6v
5v = 4.75 – 5 - 5.25v
3.3v = 3.135 – 3 – 3.465v
-12v = -10.80 - -12 - -13.20v
+5VSB = 4.75 – 5 - 5.25v
The Power good signal voltage at pin 8 on the 24 pin plug (grey cable) should be the same as the 5v rail reading/s
See this for the rail voltage info
PSUs 101: A Detailed Look Into Power Supplies (Section 2.)
The original right hand window shows the machine running and is handy for that but for looking at the components in some detail close it and use the main left hand side panel
FOR OTHER COMPONENTS
PART B:
Open each small square with + in it on the section the components are in and then click on the individual component/s (it will highlight in blue) - in the right hand side will appear all sorts of details including brands speeds and other essential info that particular device. See pic for example.

Now at least this will eliminate any possible cause from a faulty PSU which is so often overlooked when finding computer faults as when it goes south so does everything.

hi there. I do not think there will be time for doing this.
Last time I checked, it will inmediately shut down, sometimes it will not even boot but instead goes into a loop.
But I will try this and come back.

Yes it is sandy bridge

amoretam said:

it is dust free. No overclocking
I am pretty sure this is not CPU overheating issues.

Thanks

Well I'm sure 75C is to hot. Not to the toaster stage but still to hot for a custom build for sure.

Some info:

http://ark.intel.com/products/52210/...up-to-3_70-GHz

TCASE 72.6°C

Jack