A7V600: Has the mainboard killed my CPU?

  • Thread starter Thread starter Stefan vom Bruch
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Stefan vom Bruch

I have built a few systems and regularly exchange peripherals but I
have never come across this before...

I replaced my old mainboard by an A7V600. I plugged in the CPU+Cooler,
memory, graphics card and power switch connector. I supplied power to
the board, the green light went on. I switched it on, the CPU fan
started to spin, after two seconds the board switched itself off
again. After that I cannot switch it on again, even though the green
light is still on. (It will do the same thing again however if I
switch the psu off and on again).
I removed everything from the board and it worked fine. When I plug in
the CPU, it does not.
I tried to move the CPU back to my old board. Same effect. It will not
boot anymore.
It looks like the CPU is dead, right?

Now, if I damaged it when I moved it from one board to the other then
that is something I just have to live with. Since I am usually very
carefull however and have never damaged a component before, I am
thinking that there is the possibility the new board may have killed
it and I am just a little bit anxious to simply buy a new CPU and plug
it in.
Is this likely?
 
Stefan vom Bruch said:
I have built a few systems and regularly exchange peripherals but I
have never come across this before...

I replaced my old mainboard by an A7V600. I plugged in the CPU+Cooler,
memory, graphics card and power switch connector. I supplied power to
the board, the green light went on. I switched it on, the CPU fan
started to spin, after two seconds the board switched itself off
again. After that I cannot switch it on again, even though the green
light is still on. (It will do the same thing again however if I
switch the psu off and on again).
I removed everything from the board and it worked fine. When I plug in
the CPU, it does not.
I tried to move the CPU back to my old board. Same effect. It will not
boot anymore.
It looks like the CPU is dead, right?

Now, if I damaged it when I moved it from one board to the other then
that is something I just have to live with. Since I am usually very
carefull however and have never damaged a component before, I am
thinking that there is the possibility the new board may have killed
it and I am just a little bit anxious to simply buy a new CPU and plug
it in.
Is this likely?
Click to expand...

There is a better chance you chipped a corner off the die when you were
fitting the CPU cooler to the CPU.
Just a tiny bit chipped of a corner of the die kills the CPU stone cold
dead. Remove the cooler and then the CPU and clean the die so you can get a
good look at all 4 corners of the die and if one of the corners is not
perfectly square, it`s dead.
(e-mail address removed)

(e-mail address removed)

Understanding Computers
2A Eastleigh Loop, Currumbine,
West Australia. 6028
 
Wazza said:
There is a better chance you chipped a corner off the die when you were
fitting the CPU cooler to the CPU.
Just a tiny bit chipped of a corner of the die kills the CPU stone cold
dead. Remove the cooler and then the CPU and clean the die so you can get a
good look at all 4 corners of the die and if one of the corners is not
perfectly square, it`s dead.
(e-mail address removed)
Click to expand...

No, there is no visible physical damage to the CPU or the board - as
far as I can see. Thanks anyway.
 
Your next step will be to try your CPU in another mobo. There is only your
RAM, CPU and video card that will stop booting if your BIOS is ok.
 
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