Mobo/CPU Dead?

[BanJaX]

Noob question - Is it possible to diagnose a dead CPU or motherboard without having another Mobo/CPU to test them with?

My streaming/editing PC won't turn on. I've tested RAM, PSU, all that jazz. It attempts to power on for maybe ~1sec and then goes into a loop of trying to power on every 10sec or so.
I'm 90% sure it's either motherboard or CPU, but the only way I can think to test to see which part needs replaced is to have either another LGA1155 CPU or motherboard, which I do not have a spare of.

Mobo : Asus P8Z77-V
CPU : Intel Core i5-3570k

 

Thanks.

[Jurrunio]

Try reset CMOS first.

 

Does your mobo try show error codes, like beeping or LED lights flashing?

[Squibbies18]

8 minutes ago, BanJaX said:

Noob question - Is it possible to diagnose a dead CPU or motherboard without having another Mobo/CPU to test them with?

My streaming/editing PC won't turn on. I've tested RAM, PSU, all that jazz. It attempts to power on for maybe ~1sec and then goes into a loop of trying to power on every 10sec or so.
I'm 90% sure it's either motherboard or CPU, but the only way I can think to test to see which part needs replaced is to have either another LGA1155 CPU or motherboard, which I do not have a spare of.

Mobo : Asus P8Z77-V
CPU : Intel Core i5-3570k

 

Thanks.

unplug your CPUs cable and then turn the system on if it powers on (your fans start spinning etc), then it's your CPU, try resetting your CMOS first though 

[BanJaX]

CMOS reset was the first thing I tried along with GPU removal, BIOS Battery, and testing each stick of RAM individually. The mobo doesn't stay powered long enough to post any errors. And for some reason the speaker has never worked on that mobo! Tried unplugging the CPU power and turning it on, but same result. Powers on for ~1sec and then dies, and attempts to power on again every ~6-10secs thereafter. So that means it's the motherboard that's dead, right?

[Metal_Kitty]

as above reset cmos - either it will be a jumper on the Mobo or there will be a reset button 

 

 

[Squibbies18]

7 minutes ago, BanJaX said:

CMOS reset was the first thing I tried along with GPU removal, BIOS Battery, and testing each stick of RAM individually. The mobo doesn't stay powered long enough to post any errors. And for some reason the speaker has never worked on that mobo! Tried unplugging the CPU power and turning it on, but same result. Powers on for ~1sec and then dies, and attempts to power on again every ~6-10secs thereafter. So that means it's the motherboard that's dead, right?

(longshot) do you access to another motherboard that you can drop your CPU into maybe a friend that has a motherboard with the same socket or something? 

[BanJaX]

Just realised I had a spare motherboard in the garage! I won it a few years ago in a Facebook competition and it's been out there since I used it to fix/diagnose a friends PC a few years back! I'll drop the CPU in and see how it goes.

[BanJaX]

Replaced the motherboard and it seems to be powering on just fine! I haven't set it up yet to make sure everything is working properly but it's getting further than it was before, anyway. And i'm not even out any money...yet!

Thanks very much for your help, guys. I really appreciate it.