new motherboard doesn't POST. CPU LED problem?

martinoheat · 10 Jul 2014 at 22:21

My old P8Z77-V failed for some unkown reason, and under warranty i got a refund.
The board i replaced it with is the ASRock OC Formula Z77.

Today i tried to start reassembling my PC, but in the pre-case-POST-test i have already hit a hurdle - it doesn't POST!

The RAM modules are in the correct slots (i have tried different slots), the CPU and cooler is fitted correctly (i think,) i have even removed them and reseated them again to make sure. Also I can't see any damaged pins on the motherboard, and i am trying to POST without a graphics card. When i turn the PC on, the fans spin and LEDs light up, but nothing appears on the monitor.

My PSU is an EVGA Supernova G2 and is only a few months old, so i doubt it is the problem.

The motherboard has a little LED that illuminates if a component is 'dysfuntional' and when i try to boot, the CPU LED lights. Could my CPU be dead? This is the LED:
http://i.imgur.com/aeYdpB3.jpg

scotsdragon · 10 Jul 2014 at 22:30

I think your old board took the cpu to heaven with it

martinoheat · 10 Jul 2014 at 22:33

scotsdragon said:
I think your old board took the cpu to heaven with it

That's not what i want to hear

I guess it'll be covered under warranty then?
- is there any way to double check that the cpu is dead?

MeatLoaf · 10 Jul 2014 at 22:41

martinoheat said:
That's not what i want to hear

I guess it'll be covered under warranty then?
- is there any way to double check that the cpu is dead?

Only way really is either try another cpu in your board or try yours in another board.

RJC · 10 Jul 2014 at 22:49

Tried a CMOS reset? sometimes helps.

martinoheat · 10 Jul 2014 at 22:56

RJC said:
Tried a CMOS reset? sometimes helps.

I've tried pressing the cmos reset button, and also removing the battery with no power cables connected, and neither one helped.

I will try to pick up a CPU tomorrow to test with.

wazza300 · 10 Jul 2014 at 23:17

did the red cpu led light up on the asus board?

martinoheat · 10 Jul 2014 at 23:21

wazza300 said:
did the red cpu led light up on the asus board?

If there was such an LED on the Asus board, I didn't see it.
The problem with the Asus board was different also - it kept resetting every few seconds. This board stays on, but there is just no picture.

wazza300 · 10 Jul 2014 at 23:38

what cpu are you using? tried loosening the cpu cooler slightly?

mightymouse · 11 Jul 2014 at 01:35

Did you make sure that there is enough paste on the cpu? does it work if you strip it down to just a single stick of memory?

martinoheat · 11 Jul 2014 at 14:42

wazza300 said:
what cpu are you using? tried loosening the cpu cooler slightly?

it's a 3570k.

tried loosening the cooler, and still no success.

wazza300 · 11 Jul 2014 at 14:44

you could try a cheap Pentium cpu to test with

martinoheat · 11 Jul 2014 at 14:44

mightymouse said:
Did you make sure that there is enough paste on the cpu? does it work if you strip it down to just a single stick of memory?

i'm pretty sure there was enough paste on the cpu, but even if there wasn't, would the CPU heat up fast enough to cause problems immediately when i turn on the PC?

martinoheat · 11 Jul 2014 at 14:45

I've ordered a new CPU, should have it tomorrow or monday. hopefully that will show if my current CPU is the problem.

DJ_Bucho · 14 Jul 2014 at 13:22

Have you tried removing the CPU cooler and the CPU itself? and then reseating it? I had a similar problem when I first built my PC, and it turned out I hadn't pushed the CPU fully home.