Everything dead?

[TTurnerdudEE]

Alright, so the other day I went to a mates house to help him with his dad's PC. I brought a pc with the same socket motherboard over as we had deduced that either the motherboard or the cpu had died in his dad's pc. So we put his dad's cpu in my board and it booted fine, so we knew his dad's board had died. so I put the pc I brought back together, checked it worked ( it did ) and moved on. Today, I went back to help him rebuild his dad's pc with a new board that he bought from a local PC shop, put everything in and the same thing as before happened. So, we tried loads of different ram and psu combinations and still got nowhere. So, we bought the board back to the shop and swapped it out for a new one and the exact same thing happened. So, we decided that maybe since testing it the cpu had died, so I brought it back to my house with the intention of putting it back in the system I bought in the first place to see if it worked still. However, before I put it in I decided to check that system still worked just in case, however, when i hit the power button the excact same thing that had happened to my mates dad's pc ( with the system turning on for a second and turning off again ) happened and I had not touched it. I have utterly no idea what to do, is it possible that the cpu had always been faulty and every board we tried it in it killed, but if so, why did the system I tried it in the first place work when I put it all back together?

 

Thank you in advance

 

i've got utterly no idea what to do, and everything that appears to be 'broken' will cost a small fortune to repair if it's dead, :c

 

 

[alphaproject]

By the end I was confused.....

 

Let me get this straight first.

 

Friends's Dad PC, dead.... you think it's the CPU so you put it into your mobo and it worked. But did you stress test anything or just boot it?

 

Then you bought a new mobo and put same CPU in... didn't work. (Friend's Dad's CPU)

 

Then you go back to your computer, try again, no go... then... you put back in your CPU and your motherboard is also dead now?

 

I've seen this behavior before. Usually it's something to do with the heatsink/cpu not having proper contact so it won't start. They shut off right away if it goes past a thermal threshold.

[bucklingspring]

The only possible explanation I could think of off the top of my head would be that the CPU is damaging the motherboard somehow.

[TTurnerdudEE]

By the end I was confused.....

 

Let me get this straight first.

 

Friends's Dad PC, dead.... you think it's the CPU so you put it into your mobo and it worked. But did you stress test anything or just boot it?

 

Then you bought a new mobo and put same CPU in... didn't work. (Friend's Dad's CPU)

 

Then you go back to your computer, try again, no go... then... you put back in your CPU and your motherboard is also dead now?

 

I've seen this behavior before. Usually it's something to do with the heatsink/cpu not having proper contact so it won't start. They shut off right away if it goes past a thermal threshold.

pre much, I've pulled everything apart, tried my mates dad's cpu (3570K) in my board again and it worked, tried my cpu in that board again and it worked, I'm so confused haha 

[TTurnerdudEE]

Maybe the newer board that we tried with the 3570K were both dead and the issue I had with my system was just it being temperamental for no apparent reason ?

[alphaproject]

Yea, it's possible.

[Wiflare]

what motherboards and processors and other parts are in this equation?

[TTurnerdudEE]

what motherboards and processors and other parts are in this equation?

alright, mates dad's cpu = 3570K and the original board was a gigabyte GA z77m-D3H-MVP ( which is dead )

the two board we tried ( I have no idea what they were)

My board = Asus P8z77-V LX and cpu is a pentium g630