Computer freezing and rebooting

[Super Computing]

I just built up this pc a few months ago, after building it I ran a stress test on the machine using stress-ng, I even ran Civ 5 on the max graphical settings, and it worked just fine, I powered it off and left for a trip for about a week and when I came back, I wanted to try a few more games on the machine, but it started locking up randomly then rebooting. It has a Core 2 Quad Q9400s, 3gb ddr2 800hz dual channel memory, GTX 1050, 2x80gb HDDs, Cooler Master TX3 Evo cooler, 250watt PSU and a ECS G41T-M v7.1 motherboard. I installed a few operating systems on this machine, BionicDog Linux, Linux Mint 19 and Windows 10. Windows 10 is on the 2nd drive by itself. However when I open up any application, or even just leave the pc at idle, it would just randomly freeze up, mouse won't move, keyboard num lock light doesn't come on when pressed, then a few seconds later it reboots. This happened regardless of operating system. In linux I ran badblocks -s /dev/sda and badblocks -s /dev/sdb and no errors returned when testing the HDDs for any bad sectors. Temps are really good, 20c Idle and up to 35C under full load on the cpu. Graphics card ranges from 40-60C. I took out the 1gb ram stick, and tried again, still froze, then I put the 1gb stick back in a pulled out the 2gb stick, still froze, then I just took out both sticks and put in another different 1gb ddr2 stick, but the problem still persisted. Any help would be greatly appreciated.

[nextg3n]

12 minutes ago, Super Computing said:

I just built up this pc a few months ago, after building it I ran a stress test on the machine using stress-ng, I even ran Civ 5 on the max graphical settings, and it worked just fine, I powered it off and left for a trip for about a week and when I came back, I wanted to try a few more games on the machine, but it started locking up randomly then rebooting. It has a Core 2 Quad Q9400s, 3gb ddr2 800hz dual channel memory, GTX 1050, 2x80gb HDDs, Cooler Master TX3 Evo cooler, 250watt PSU and a ECS G41T-M v7.1 motherboard. I installed a few operating systems on this machine, BionicDog Linux, Linux Mint 19 and Windows 10. Windows 10 is on the 2nd drive by itself. However when I open up any application, or even just leave the pc at idle, it would just randomly freeze up, mouse won't move, keyboard num lock light doesn't come on when pressed, then a few seconds later it reboots. This happened regardless of operating system. In linux I ran badblocks -s /dev/sda and badblocks -s /dev/sdb and no errors returned when testing the HDDs for any bad sectors. Temps are really good, 20c Idle and up to 35C under full load on the cpu. Graphics card ranges from 40-60C. I took out the 1gb ram stick, and tried again, still froze, then I put the 1gb stick back in a pulled out the 2gb stick, still froze, then I just took out both sticks and put in another different 1gb ddr2 stick, but the problem still persisted. Any help would be greatly appreciated.

where do you even find a 250 w psu these days? additionally 1050 needs minimum of 300-350... id go for a stable 500w....

[Super Computing]

It came with a prebuilt. I have a few laying around. 290watt in my main pc, 200watt in another, 250watt in this one.

[Stormseeker9]

3 minutes ago, Super Computing said:

It came with a prebuilt. I have a few laying around. 290watt in my main pc, 200watt in another, 250watt in this one.

Not sure if 250w will be suffice for a 1050. 450W psu would be better perhaps. 

 

As to your freezes.. probably just a slow system looking. At the specs

[Super Computing]

Ok, will try a 430watt psu that I have from an old xeon machine.

[Super Computing]

Edit:

Problem has been resolved, I replaced the Q9400s with a Q9300 and it stopped freezing, after all the Q9400s was not on the supported cpu list of my motherboard, and when removing the cpu, there were a few gold plates with some thermal paste on it, woops. That may have caused it's issues. Anyways it is sorted out. Ran a stress test but now it hit 60c. Not sure why the Q9400s only hit 30C, maybe it was incorrect temp readings?