PC randomly shuts down.

Hi,

I have a dell xps 8300 running windows 10 pro v1511 which was clean installed a few weeks ago.

Sometimes when I cold boot my computer the computer shuts down unexpectedly on the windows 10 splash screen. I have unplugged everything from my PSU apart from my windows hard drive and graphics card and still get the random shutdowns. I've also removed and cleaned the heatsink/fan and CPU and applied new thermal paste but problem is still there.

I'm not getting any BSOD's or memory dumps if it helps

Anyone have any ideas?

Thanks
Kamal

sn00ker said:

What kind of Power Supply are you using? Watts

I'm using the standard dell 460watt PSU that came with the system

I have 2 hard drives, 1 Bluray drive, 1 DVD drive and a AMD Radeon 7870 graphics card plugged in.

sn00ker said:

Did you added the graphics card to it, yes?

Yes I did about 8 months ago.

My PC doesn't have on board graphics. I originally had a amd radeon 5450 in there before it died.

If you had this Radeon card for 8 months and this just started happening then probably not due to wattage demand, although always seems hard to find out the requirements of wattage and what is also important with Graphics cards Amperage for AMD cards. I roughly see 450-500W PSU with close to maybe 40amps on 12v rail.

Since it happens at the very beginning does not seem like overheating going on. RAM can be another cause ,but will sometimes shutdown and restart over and over. What else was added or changed in this system ? With PSU never get exact wattage needed always go a bit more then needed. Hard drive and optical drives not going to use a lot, but then matters how many pieces of hardware you have.

jds63 said:

If you had this Radeon card for 8 months and this just started happening then probably not due to wattage demand, although always seems hard to find out the requirements of wattage and what is also important with Graphics cards Amperage for AMD cards. I roughly see 450-500W PSU with close to maybe 40amps on 12v rail.

Since it happens at the very beginning does not seem like overheating going on. RAM can be another cause ,but will sometimes shutdown and restart over and over. What else was added or changed in this system ? With PSU never get exact wattage needed always go a bit more then needed. Hard drive and optical drives not going to use a lot, but then matters how many pieces of hardware you have.

The only other thing I changed was upgrading to Windows 10 from 8.1