Computer has shut down on me

Hi, Guys.

Apart from time spent here, I enjoy role-playing games (such as Mass Effect, Witcher 3, Dead Souls, Divinity Original Sin 2) on my desktop computer, which I assembled from bought parts around five years ago.

I have a decent system, with a GeForce GTX 980ti graphics card and a wide-screen curved 34" monitor. My chip is only an Intel Core i5 4670, but the whole system has served me well for years. It sits unmoved on my desk. My power unit is an EVGA Supernova 650G2 (80 plus - gold rating).

This afternoon my system suddenly shut down on me. No noise, no warning - just screen went blank - silence and no lights on the PC. No smell of burning. The case was hot but not abnormally so and cooled down quickly as usual.

I've checked my power plug connection to the PC and that's live, but there's nothing active in the PC. No fans, no lights -nothing.

I've taken the side off the PC and the three fans are free-running on finger touch and there's no dust clogging anywhere I can see. Nothings seems loose.

I'm not a computer nerd- only assembled it with help on Google and You Tube. Assuming it's not the Corsair Case switch - at least I presume it isn't, I can only think of two possibilities.

One is a tiny fuse of some sort but I'm not sure where it would be.

Two is that the power unit has failed. There's nothing to see on the Power Unit- no light at all- I'm not even sure there would be a light. I really don't fancy taking everything out and re-wiring, and am wondering if I got the same model Power Unit I could just switch the connections from my current unit to the new one (ignoring the wiring sent with the new one) and see what happens. I assume the wiring (or most of it) is detachable at the power unit.

Am I making sense?

Or do any of you wiser gurus have any other suggestions. I may have to replace the whole thing, but just eliminating the cheapest option first. Fortunately I kept my old system and am using that right now.

Thank you so much to whoever replies.

Kindest,

Bufty

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Thankyou to you all. These are helpful tips and I'll see what I can do now, although I suspect taking my unit to the nearest computer shop for a diagnostic may be my best solution.

My power supply to the machine is OK- it's the same supply and connections that I'm using for the replacement machine I'm using.

Thanks again and I'll let you know how things go.

Well, I put my machine in for testing and the result was not what I was expecting.

It's apparently my graphics card that has gone. So I'm now considering what to do. I'll be getting quotes and suggestions from the tech shop in a day or so. I know, it's dead easy to replace a card but....

The card was a GeForce GTX 980Ti, bought in April 2016 if I recall correctly. Thought I might have got more than three years out of it. So now I wait and see what is recommended to replace it.

ETA- Just checked the Warranty- yep- THREE YEARS! Ah Well.

I'm wary of multi-socket extensions - I have four separate but adjacent double-plug wall units.

I'm beginning to wonder, too, but I won't jump to conclusions. I see from net items that other folk have had complete failure with the graphics card as the culprit.

I'll chat with them when I get my machine back in the next day or so. I'll also obtain the old card.

Amazon says it has a two year warranty period, and that has gone. Gigabyte seem to have a three year warranty that runs from date of manufacture!!!! Sheesh. But I'll see if I can contact them tomorrow. I'm not too hopeful.

Pity- because the card has served me very well.

stuffguy said:

I wasn't expecting it to be your GPU. If you remove it completely, your mobo should still start up (lights, fans, beeps). I'm wondering if the shop you brought it to knows what they're doing ...

Click to expand...

Replaced the graphics card and all works fine. I suspect my old card overheated - probably through dust accumulation. It did feel very hot in the graphics card area and at top of case, but not any more.

My fault - I should get rid of the dust periodically.

Gigabyte Windforce 8G GeForce RTX 2070.