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ASRock Extreme3 Gen3, new build problem

  • ASRock
  • DDR3
  • Corsair
  • New Build
  • Motherboards
Last response: in Motherboards
December 16, 2011 2:37:58 PM

MB: Z68 Extreme3 Gen3
MEM: Corsair Vengeance 2 x 4GB (tested and working)
PSU: Corsair TX 850W
CPU: i5 2500K
GPU: GTX 580

Everything works, but:

If one or two of the memory modules are placed in either slot DDR3_A1 and/or DDR3_A2 I get error code 38 which is Post-Memmory North Bridge initialization:

Only when memory modules reside in either slot DDR3_B1 and/or DDR3_B2 it boots ok with no error messages and everything in BIOS looks right.

Same exact problem as this guy:

and this guy:

and this guy:

and this guy:

Anyone have a clue what's going on?

More about : asrock extreme3 gen3 build problem

December 16, 2011 6:08:42 PM

Have Asrock possibly printed wrong labels on the memory slots (confused the numbering)? Which ones are supposed to be populated first according to the user manual? If you have a chance, borow two more DDR3 strips from a friend and populate all slots. See what happens. If the RAM is then fully recognized and the system boots - it would confirm my idea above... If not, well, that would be a hint that the A-group of slots may be faulty. In that case I'd rma the board. Or check if there is a BIOS update that might sort the problem.
December 17, 2011 5:22:34 AM

It works now:

I removed the CPU, inspected the socket pins for dust or damage/angles, they all looked like they should, I reseated the CPU, and it works now. I have no idea why that fixed it.

Since the thermal compound was brand new air bubbles shouldn't be that much of a problem right? I didn't remove or reapply any of it. The temperatures are great exactly as they were before. 34C.

December 17, 2011 9:07:35 AM

Was the CPU cooler really completely down on all four mounting points? Unless the CPU itself was not properly lined up inside the socket I can only imagine unevenly applied pressure to be a reason for that...

Coming to the thermal compound - I'd strongly recommend to be very careful about not redoing it. At least do yourself a favour and thoroughly stress-test while you're closely monitoring the temperature

Anyway, glad to see that you were able to sort it out by an easy and inexpensive solution.