Mobo or cpu defective?

[stimsen]

I just recently brought a i5 3570k and a Asrock z77 OC board to upgrade my previous sytem. But the first time inbooted it up, it wont even go into bios or post. The light for the cpu is red on the motherboard which it probaly means the cpu is defective but could it be the mobo instead? If so, then which part would you recommend I rma?

I have tried unplugging everything else to see if any other part was causing the problem (ram, pci cards, sata drives, etc). It still refuses to post. Thanks

 

[Fallengod]

Well, the only thing I will say is, in all my life ive never seen a CPU go bad or be DOA. I guess ill assume it happens, but its fairly unlikely.

Id guess the mobo for sure....


You might try to make sure the CPU is seated correctly but....kind of hard to not seat it correctly.

My guess is you will probably get many more comments of similar nature since a cpu being bad is very rare.


Im hoping wherever you bought it from offers an easy RMA process.

 

[bankster55]

Sounds like you need a bios upgrade to detect the CPU
Call up ASRock and tell them about it and they may send you a new chip FREE
I know ASUS will.

 

[Fallengod]

Yeah that could be the case. Mobo just cant detect the chip. Hadnt thought of that.... Isnt that board made for those chips though? : /

 

[bankster55]

just checked
you are correct, says since all bios
naturally the post I answer has no CPU bios prerequisites

That only leaves borked pins or bad CPU, perhaps no 8 pin aux +12V, or bad PSU, heat sink backplate shorting out on backside componenets or soldered leads, or 24 pin 8 pin power not all the way down.
Or stock Intel HSF or CM 212+ cranked on with a crescent wrench. Stock HS warps the hell out of mobo if installed out of case, often all 4 pins not in correctly
Might actually be a bad mobo!
Tho the key here is the red CPU led.
Might note the Intel RMA is quite easy no hassle.

 

[stimsen]

Thanks for all the suggestions. I have tried swapping another different CPU into this mobo and the same thing happens. Also tested my new 3570k on another existing motherboard and it booted up and detected it fine.

So now I am certain it's a defective mobo I have. I have RMA it already.