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Z77 Mobo - Every socket pin is bent?

post #1 of 21
Thread Starter 
Backstory: Realized from looking in CPUZ that my memory wasn't working in dual channel. Turns out sticks were installed in wrong pair of slots. I try to put it in the right pair and I get no POST at all...desktop reboots after 5 seconds and screen shows nothing.

So I do some research and some people say this is caused by bent socket pin(s). Remove the cpu and find this:



What. The. Hell?!?! Every single pin is bent. What has me scratching my head is that they're all bent consistently. One "sector" is bent at 4 oclock, another is bent at 11 oclock. There are no pins "mashing" into each other. Also keep in mind that this computer has been working for the last month. It's only recently that I checked trying to fix DDR channel to dual.

Help please. Are angled pins by design? How could I have done this myself? Screwing the heatsink down too tight? Can I RMA or am I out of pocket?
post #2 of 21
Can you take another pic from a bit farther away ? Kinda tough to get a feel for that one, it's pretty zoomed in.
post #3 of 21
Those pins are not bent, that is how they are suppose to look. Have you updated the bios of the board or tried the ram in the other pair of slots?
post #4 of 21
Quote:
Originally Posted by XAslanX View Post

Those pins are not bent, that is how they are suppose to look. Have you updated the bios of the board or tried the ram in the other pair of slots?

This. Nothing wrong with those pins thumb.gif
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post #5 of 21
Quote:
Originally Posted by dr/owned View Post

Backstory: Realized from looking in CPUZ that my memory wasn't working in dual channel. Turns out sticks were installed in wrong pair of slots. I try to put it in the right pair and I get no POST at all...desktop reboots after 5 seconds and screen shows nothing.

So I do some research and some people say this is caused by bent socket pin(s). Remove the cpu and find this:



What. The. Hell?!?! Every single pin is bent. What has me scratching my head is that they're all bent consistently. One "sector" is bent at 4 oclock, another is bent at 11 oclock. There are no pins "mashing" into each other. Also keep in mind that this computer has been working for the last month. It's only recently that I checked trying to fix DDR channel to dual.

Help please. Are angled pins by design? How could I have done this myself? Screwing the heatsink down too tight? Can I RMA or am I out of pocket?

Yes. Yes ,the pins are supposed to be angled by design. That's not to say that you don't have any incorrectly bent or damaged pins, but I can tell you will a reasonable degree of confidence that you don't have a motherboard with 100% of it's pins damaged. Furthermore, I don't see any incorrectly bent or damaged pins in that picture.
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post #6 of 21
Thats how they are.
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post #7 of 21
Thread Starter 
Whew that's good to hear. It seems to make sense...looking at the pads on the bottom of the cpu, they're also ellipses and not circles, following the same pattern of angles as the socket pins.

Yes I also tried the ram in Channel B and A (1 & 3, 2 & 4). Nothing happens in either (don't get a post, screen doesn't turn on before it reboots). BIOS is the latest version. I also did a BIOS reset to defaults. I'm thinking maybe the RAM isn't compatible somehow, even though it's XMP compatible and run-of-the-mill DDR3 1600 @ 9-9-9-24. Both sticks work fine if installed next to each other (1&2).

I saw there was some residue or something on a corner of pads on the CPU, so I cleaned it off with some isopropyl alcohol and lint free wipes. Putting everything back together now to see if that was it.
Edited by dr/owned - 2/10/13 at 3:50pm
post #8 of 21
Thread Starter 
No joy.

The configuration of the ram slots is 4,2,3,1 where 1 and 3 are Channel B, 2 and 4 are Channel A. To get dual channel working, slots 1 and 2 should be used. It seems Channel A is just borked and won't even work with 1 stick in either of those slots (2 or 4). Channel B works fine with 1 stick in either slot (1 or 3).

I've checked the socket pins with a fine tooth comb and I don't see any problems. Here's pics showing the perfectly uniform light reflection for each section:




My only idea right now is to buy some ram of a different brand off amazon and return it if it doesn't fix the problem.
Edited by dr/owned - 2/10/13 at 6:02pm
post #9 of 21
Thank you for the quick intervention moderators.
Edited by juano - 2/10/13 at 6:21pm
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post #10 of 21
Don't worry about the CPU pins, they look fine to me thumb.gif

As for ram, I believe it should be slots 1 & 3 and 2 & 4, notn12 and 34?

Try clearing the CMOS battery on the motherboard if your struggling to boot. What mobo is it?

Ghost rider why say that? The cpu pins clearly aren't bent and by trying to fix those will void the motherboard warranty.
Edited by $ilent - 2/10/13 at 6:18pm
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