P8Z77-V & i5 3750k - Memory issues

joaobarcellos

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Apr 4, 2013
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P8Z77-V & i5 3750k - Memory issues

Hi there,

I've built my first pc with these configs and I've placed 4x4gb Corsair Vengeance Blue on DIMMs. On the first day, everything went right. I was using my PC, the memories were connected and the system recognized them. On the second day I've tried to start the system, but something went wrong. I've checked and the memory light was on.

Them I took all the memories out and replaced each one in each slot and discovered that slots B1 and B2 cause the system to fail on booting. A1 and A2 works pretty well, everything start. I've tested each memory and I came to the conclusion that the problem is not relying on the memories. Also, I've tried to put XMP in the BIOS settings, but the only thing I didn't try was setting manually the voltage and CAS. I really think this is not the problem. I went through some threads here and saw that this could be caused by bent pins on the socket. I took this picture:

http://imageshack.us/photo/my-images/256/img2363r.jpg/

In the bottom, the reflection of the photo makes you think they are bent, but they are not. I've checked the MOBO a hundred times. And also tried to take it out and put back. This picture was the first when I took out the CPU and stopped trying to solve this.

I really think the problem is on the MOBO, can anyone help? I know a lot of users had the same problem and really i don't know what to do. I should make an RMA?

There are another strategy to solve this problem?

Honestly, if it was working one day it cannot be the CPU. I've played games on 16gb RAM and on the other day all went wrong.

Excuse me on my english. I'm brazilian and my english is a little bit rusty.

Thanks everyone!
 
Hi, Have you tried clearing the CMOS (unplugging the power cord and removing the CMOS battery for few minutes)?
Hard to say which one is the culprit, motherboard or CPU.
I tend to say it's the CPU (integrated memory controller that might have failed under load).
If possible, try RMA-ing motherboard RAMs and CPU.
Edit: in the picture, 2 pins - top left corner (as looking to the photo) seem a little bit out of normal direction, but I can't say for sure - it might be just the reflection.