Gigabyte Z77X-UD5H (r1.1) Not Posting w/ More Than 1+ Memory Module

[kenetik]

Motherboard: GA-Z77X-UD5H(rev. 1.1)
Bios: F14
Serial/N: 133000021345
VGA Brand: EVGA Geforce GTX 670 FTW
CPU: Intel i7-3770k 3.5Ghz (3.9Ghz Turbo)
Memory: 4x 8GB DDR3 1600
Corsair Ram Model Number: CMZ32GX3M4X1600C10
Power Supply: 650W

Issue: Please note the System Configuration Specifics listed. //
This is a brand new system, all new parts. During the initial system build, I installed all four DDR3 memory modules. The system would not boot, through further analysis I read the LED Error on the motherboard, it started with 15, and would quickly flip to 51.

When reading the manual I determined that it was memory related, after removing three modules and only have one in the DDR3_1 socket, the system booted properly.

To test if it was a memory issue, I tried each memory module in DDR3_1, all with successful boots. Upon confirmation that I did not have a bad memory module, I attempted booting with a module in DDR3_1 and DDR3_3. Trying this resulted in the same error. Further testing was with memory modules in DDR3_2 and DDR3_4. Again, same 15 > 51 error code.

--

Others have suggested that my Power Supply may not be sufficient?

I also noticed a new beta bios that was supposed to increase memory compatibility?

Please advise any further analysis or debugging that I can do.

 

[alexoiu]

I suggest removing the CPU and checking the socket for bent pins. Testing the board outside the case (for ruling out a short) might help also. Is there a CPU fan backplate installed?

 

[kenetik]

I suggest removing the CPU and checking the socket for bent pins. Testing the board outside the case (for ruling out a short) might help also. Is there a CPU fan backplate installed?

Thank you for your quick response, I will look into your advice and respond with results!

 

[kenetik]

I suggest removing the CPU and checking the socket for bent pins. Testing the board outside the case (for ruling out a short) might help also. Is there a CPU fan backplate installed?

After taking everything apart, it certainly looks like a pin is bent. I have attached an image.

What would have caused this? And is there any solution to fix it?

Thanks again for all of your help.

 

[Onus]

I have successfully used a jeweler's loupe and a dressmaker's straight pin to fix bent LGA pins before.

 

[kenetik]

I have successfully used a jeweler's loupe and a dressmaker's straight pin to fix bent LGA pins before.

I'm not quite sure I would be the best suited to do this task but imagine I could find someone that is. Do you feel like this is what is the source of my issue?

 

[alexoiu]

If not sure about straightening it, you can take the board to a jeweler or watches shop. They have the necessary tools and patience to fix it. And I guess they won't charge too much.

 

[kenetik]

If not sure about straightening it, you can take the board to a jeweler or watches shop. They have the necessary tools and patience to fix it. And I guess they won't charge too much.

Do you feel like this is the source of the original issue? The fact that I can't use more than 1 stick of ram?

 

[alexoiu]

Bent pins can create this kind of issues.
You can try also RMA-ing the board.

 

[Onus]

As far as I know, most companies will not accept RMAs for bent pins.