P8P67 Pro B3 CPU LED on

[Trebin]

I was using my computer the other day, did a reboot and from there it would never get a signal to the monitor. I reset the cmos, ran the men test using the button on the motherboard, swapped out the video card, pulled the RAM, used just one, rotated slots etc and nothing. I switched monitors and cables to just be on the safe side. I seen a green light on the motherboard which I assume means the motherboard is working. There was one red LED I didn't pay attention to until today and it says CPU LED. Does this mean I need to replace the CPU? Is the thermal compound bad? Any help would be appreciated. I have an intel i5 2500k and the asustek CPU cooler. This was a build from cyberpower PC.

Mark

 

[Burpo]

Make sure CPU power cable (4 or 8 pin) is good and plugged in all the way. Also, do you have any extra fans plugged in next to CPU Fan header on the mobo? I would disconnect everything and try to get it to post (no red LED). If it doesn't, I'd try a dif PSU. If it never boots to BIOS, it's prolly time to replace it (motherboard)..

 

[Trebin]

I don't have access to another PSU to swap out. Everything turns on and it just never seems to POST. Is the CPU or PSU a better first step?

 

[Trebin]

This is currently the PSU that I have http://www.newegg.com/Product/Produc...82E16817152043

 

[Trebin]

Any recommendations on a good PSU? I have a GTX 580 card and the i5 2500k.

 

[Ketchup]

Sounds like the power supply is not sending good power to the board. Raidmax is known for this.

Antec and CoolerMaster are my favorite affordable power supply manufacturers. Corsair, SeaSonic, and PC Power & Cooling are also good.

 

[Trebin]

I have had it for 3 years and the warranty is 2 haha so it would make sense right? Ok awesome, I will def dig in to this. I am doing a lot of graphic design, vfx etc work and really need my rig back. My macbook pro from 2010 just doesn't cut it.

 

[Burpo]

Your power supply may be fine.. You prolly need a motherboard..

 

[Trebin]

Is there an easy way to test if it is the mobo?

 

[Burpo]

Yes, borrow/change the PS & see if it boots to bios.. From what I've read, yours is a common problem with that board.

 

[Trebin]

Sounds good, I have a buddy who said he has an extra PSU so we will know soon enough.

 

[Trebin]

Test new PSU and still nothing, leaning towards a mobo so now I need to figure out what to do. Should I buy an 1150 and use my 2500k or upgrade...

 

[Ketchup]

Test new PSU and still nothing, leaning towards a mobo so now I need to figure out what to do. Should I buy an 1150 and use my 2500k or upgrade...

I understand, there are some slim pickings there. I was really hoping it was the power supply, but depending on what you got, you should have better protection for whichever way you decide to go.

 

[infoiltrator]

I 2500 is 1155 motherboard. Z77.

 

[Vinwiesel]

I still have the manual for my P8P67 Pro. In the Onboard LEDs section, it says:

POST State LEDs
The POST State LEDs of CPU, DRAM, VGA card, and HDD indicate key components status during POST (Power On Self Test). If an error is found, the LED next to the error device will continue lighting until the problem is solved.

So basically the motherboard thinks something is wrong with the CPU. It could be the CPU, or something on the motherboard which is causing a CPU problem. I would inspect the VRM's on the motherboard, and sniff around for any burnt smell.

If there is nothing obvious, i would reseat the CPU, in case it has some bad contact.

I watched mine during a reboot, and saw the boot device LED and the VGA LED come on briefly, but that was it.