Originally Posted by stasio
I had similar problem like "gigabytesucks.info"(?) 2 weeks ago, no boot or boot only in slot 1.
Also thinking about RMA,but.....
So, I check my socket and found some pins bent.......as I replaced my previous cooler (which I probably last time tight to much).
Put back pins in right position, carefully
place CPU in socket, mount new cooler (do not tight to much)....and voila
, mobo work like charm now.
as per your pic with 2 RAM sticks installed, you are not running dual channel.
Incredible. Just incredible.
First off, this is yet another moment when I am so grateful for good samaritans who offer useful advice here. And generally, it's great to have this forum with such knowledgeable people involved, who are civil.
This issue was both irritating and debilitating, making me lose usage of my computer that I built for professional video editing, after recently upgrading just the case to an Antec Nine Hundred (giving up on PWM control for all its faults on this board, opting instead for "fan overkill" using all of the Antec tri-speed fans firing at their lowest speed, rather than trying to get fewer/smaller fans spin up and down using PWM, which is a nightmare on this board).
When re-attaching the Hyper 212 CPU cooler, I screwed each of the four corners in tightly -- not excessively, but not lightly. I RMA'ed the board after exhaustive diagnosis, finding it totally bizarre that the farthest two slots worked great, but not the closest two. (That would make sense if it was a channel issue, but it wasn't.) Gigabyte technicians were equally puzzled, after recommending a few BIOS tweaks (e.g., higher DRAM voltages), and claimed -- perhaps incompetently -- that they'd never, ever heard of this problem.
I just installed the replacement motherboard -- not fun -- and examined the old one's CPU pins.
BAM. One of them was bent.
The new motherboard works great, back in form.
I suppose that this problem would have been resolved anyway because of the replacement, without me knowing the reason; but I certainly screwed down the cooler more lightly this time, because of stasio's advice -- and I recommend you do, too!
Thanks again, stasio. And boo on Cooler Master for not emphasizing this installation issue enough.Edited by hpmoon - 12/5/12 at 4:19pm