Computer Shuts OFF Randomly

[usil]

Hi mate, about this UPS device, I have an 850 watts PSU do I need to buy an 850 watts UPS for it? Or anything around 300 to 600 watts should do? I have a vague memory that should be the same wattage or higher. Thanks.

UPS are measured in VA (Volt Ampere), not Watts.

[Iced_Nardo]

No, that's how how UPS sizing works. It depends on how long you want the system to keep running also.
http://www.apc.com/template/size/apc/index.cfm

Thanks a lot mate, as soon as I receive my UPS and test the system I will drop some comments. Cheers.

[Iced_Nardo]

Are you using a generic PSU?

nope, a thermaltake one.

[Iced_Nardo]

Are you using a generic PSU?

its a retail one that came brand new (850w), I bought as a replacement for a 450w. recently i bought a psu tester that will arrive in 2 to 5 business days. to be honest with you i don't believe that's the problem. what intrigues me is the fact that the same problem have been going since i started buying new components, the only original ones are dvd-rw drive and hard drive. quite weird, isn't it?

[usil]

nope, a thermaltake one.

OK, that's an important piece of information because generic PSU's don't give actual wattage info.
I'd do what some others have suggested, get a UPS to make sure that the computer isn't losing electricity, even for half a second.

[Iced_Nardo]

OK, that's an important piece of information because generic PSU's don't give actual wattage info.
I'd do what some others have suggested, get a UPS to make sure that the computer isn't losing electricity, even for half a second.

Hi there, regarding PSU/UPS I recently bought a UPS and even though the computer was cutting off. Funny thing that both my Desktop and Monitor were connected to the UPS but surprisingly only the Desktop lost power, the monitor kept working on. I also bought a Power Surge Protection Lead of 13A. I believe the problem might be my GPU overheating because I left the side of my desktop opened with a big Fan blowing cold air on it and when the power cut off all components were pretty chill apart of my Graphics Card (it was boiling hot, seriously). I sent it back to the Seller and once the item has been discontinued they said I will get it refunded. I am planning to buy the new HD5850 instead, but this time I will get it from BFG or XFX. Hopefully my problems will be solved with a new and cooler GPU. Fingers crossed guys!!!

[Midknyte]

Be sure you plugged the system into the UPS socket with battery backup. Some UPSs have "surge only" and "battery backup" outlets. Surge only would be for stuff like printers.

[Iced_Nardo]

Be sure you plugged the system into the UPS socket with battery backup. Some UPSs have "surge only" and "battery backup" outlets. Surge only would be for stuff like printers.

My desktop is connected on the battery supply and the monitor on surge only but even though the computer cuts off. Recently I have sent my VGA back and getting a new HD4890 on its place. Hopefully this will stop.

[Iced_Nardo]

I have sent my old VGA for a replacement and got a 100% refund instead. I bought a new VGA XFX HD4890-XXX + a new Corsair PSU 750W, since then I had no more problems at all. I have been playing since Friday more than 23 hours (8 hours non stop) and the computer runs perfectly well!!!

[Iced_Nardo]

THANKS EVERYONE 4 HELPING ME OUT!!!!

[jdc2000]

Thanks for the update. Glad to hear it is running OK now.

[usil]

Glad to hear it works.

I'm curious, are you 100% certain that the computer would turn off? Is it possible that the monitor just went black but the computer was still on?

[Iced_Nardo]

nah mate, i am a 100% sure the computer was going off during that time. everything stop working, hd, fans, etc. 1 of the 2 things, it was the vga overheating or a low quality psu. anyway i have been playing since fixed a zillion hours on all top games released (batman, wolf, re5, street fighter) and the computer runs fast like a bullet and no bugs!!! i could not be any happier than this!!!

Glad to hear it works.

I'm curious, are you 100% certain that the computer would turn off? Is it possible that the monitor just went black but the computer was still on?

[Iced_Nardo]

thanks mate, that means a lot!!!

Thanks for the update. Glad to hear it is running OK now.