Sysytem does not boot, ethernet light turns on when pressing power button

[Eienring]

I attempted to upgrade my motherboard and CPU yesterday and when I tested it, the system will not boot.

I've checked everything from the stickied thread and have yet to find a solution. Also my system was working fine before the upgrade attempt Here's what I have done so far:

-Put the old motherboard/cpu back in (Will not boot)
-Used only 1 ram
-Checked all power connectors are connected, including the 8-pin 12v
-Left video card unplugged
-PSU starts up using the paper clip trick

What I know so far is when I pressed the power button with the network cable plugged in, the ethernet LED blinks. When I hold the power button for 5 second, the LED shuts off. Same result when I switched my power button connector to the reset button.

Would it be easier for me to get a motherboard tester or is there anything I"m missing?

 

[alexoiu]

Try starting the board out if the case, only CPU and CPU fan installed, both 24 and 8 pin power cables connected (no other components or cables). See if the CPU fan does spin.

 

[Eienring]

Try starting the board out if the case, only CPU and CPU fan installed, both 24 and 8 pin power cables connected (no other components or cables). See if the CPU fan does spin.

Unfortunately my case connectors aren't long enough for me to have my motherboard out of the case. Is there a way around this?

 

[alexoiu]

You don't need them. For starting the board, just shortly touch with a screwdriver the 2 pins on the motherboard where the case power button wires get connected.
This way you'd narrow it down to board, PSU and CPU.

 

[johnnyb105]

I wonder if he has the case connectors backwards in wrong spots so there for the system wont boot it happens....

 

[Eienring]

You don't need them. For starting the board, just shortly touch with a screwdriver the 2 pins on the motherboard where the case power button wires get connected.
This way you'd narrow it down to board, PSU and CPU.

Okay, I was able to get my power button connector to reach after some adjustments.
I put the board on the anti-static sheet that came with the box, connected only the power button connector, 24 and 8 pin power, removed all ram, and I'm still getting the same results - ethernet led lights up when connected and when I press power button, but nothing else turns on.

 

[alexoiu]

Now remove the 8 pin power cable (leave only the 24 pin connected), connect 1-2 case fans to the motherboard (not to the CPU_fan) and see if fans do spin when starting the board.

 

[johnnyb105]

You can take the power supply out of the case as well and run it on a table with the board ect be sure to have at least 1 stick of ram installed otherwise it wont boot.

 

[Eienring]

Now remove the 8 pin power cable (leave only the 24 pin connected), connect 1-2 case fans to the motherboard (not to the CPU_fan) and see if fans do spin when starting the board.

Removed 8 pin and connected case fan, fan does not turn on.

 

[alexoiu]

Then It looks like a motherboard issue (you've tested the power supply and it does work), and I suggest RMA-ing it, if under warranty. Hopefully the other components were not damaged.

 

[Eienring]

Then It looks like a motherboard issue (you've tested the power supply and it does work), and I suggest RMA-ing it, if under warranty. Hopefully the other components were not damaged.

I tried to do the same test (in the case) on my old motherboard that was working fine before the upgrade and it doesn't power up either. I'm working on to RMA the new board, but I'm having doubts now even the old board is not booting up.

 

[alexoiu]

Can you test different power supply? When did the paper clip test, have you connected 1-2 fans to the molex connectors?

 

[Eienring]

Can you test different power supply? When did the paper clip test, have you connected 1-2 fans to the molex connectors?

Alright, I plugged the new motherboard in to a different PSU and it seem to power up. So I'm guessing it's my PSU. I'm not sure how it was working fine last night before I performed the upgrade and now it doesn't work. I used the paper clip trick sticking it to the green wire pin and the black one next to it and I was able to get the PSU fan to spin. Not sure what could cause it to happen.

I'm going to assume that there's no doubt that I'll need a new PSU?

 

[alexoiu]

It seems so. If under warranty, try RMA-ing it.

 

[Eienring]

It seems so. If under warranty, try RMA-ing it.

My new power supply just came in today and everything is running now after putting everything back together. Thanks for the help.

 

[alexoiu]

You're welcome.
Thank you for the follow-up.