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MSI z87-g45 memory slot problems

Last response: in Motherboards
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May 30, 2014 3:16:09 PM

Upgrading the motherboard from a 1 year old MSI to a new z87-g45 and slotting the memory according to the guide, only channels 3 & 4 work properly. Went from 16gb 4 slots (2x4gb unknown stock memory and 2x4gb Corsair Vengence I bought after market) the bios didnt boot upon startup. Switching slots did nothing until taking out the old stock modules and moving the corsairs to the 3 & 4 positions finally allowed bootup. Dual channel is unresponsive (slots 2 & 4 same no boot up) and even buying a replacement 4gb PNY stick adding to additional slots still no boot up. I can live with 8gb but trying to figure out if I have 2 dead channels on a fresh out of the box motherboard and need to send it back in or Im just setting them up wrong. All DDR3 and running same speed.
a b V Motherboard
May 30, 2014 4:39:06 PM

Check the cpu socket for bent pins. Most of the times the memory problems end up being a bent pin.
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May 30, 2014 5:08:28 PM

ok, in checking the pins would it be the CPU slot or the memory slot? upgraded to 1150 chipset for this board using i7 4790 and was a clean install ( I say that but if there were bent pins in the CPU socket wouldnt it not bootup at all correctly?)
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a b V Motherboard
May 30, 2014 5:37:27 PM

It's the cpu socket and no it would boot unless more than a few pins bent. Usually memory slots effected by a bent pin.

If it's a bent pin with a needle or tweezer you can easily straighten it up. But you need to be very slow and careful. Also a magnifier would help a lot. There are also lots of guides on youtube.
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May 31, 2014 5:24:29 PM

feelingtheblanks said:
It's the cpu socket and no it would boot unless more than a few pins bent. Usually memory slots effected by a bent pin.

If it's a bent pin with a needle or tweezer you can easily straighten it up. But you need to be very slow and careful. Also a magnifier would help a lot. There are also lots of guides on youtube.


Right on the money; taking apart the cpu fan to check the chipset socket I noticed A LOT of thermal paste spread over and almost spilling onto the board socket holder, 30 minutes of cleaning later and inspecting the socket itself noticed a single pin out of place by no more than 2mm (had to really look at it to tell) didnt have tweezers but a hollow point sewing needle did the trick for realignment. Installed the corsairs in dual channel slots and the replacement stick in channel 1, boot and Bios detected the new memory on the spot. Back to 12gb and loving it.
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a b V Motherboard
May 31, 2014 6:10:20 PM

Glad to hear that. Have fun! :) 
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