I have built two PCs of almost the same spec using the GA-770TA-UD3, Athlon X2 and 4GB (2x2GB) Corsair memory DDR3 (TW3X4G1333C9DHX).
Both PCs are having problems with memory stability.
On the first PC, I ran the tests from Memtest.org, the test pass on the first pass, but on the second pass they fail.
On the second PC, the same problem. I have already changed the motherboard in the second PC to a different brand and now everything is ok, so before I change the motherboard on the first PC, I'd like to try and find the problem.
In the BIOS the memory is detected as 1066MHz although the memory speed is 1333MHz. The voltage is shown correctly at 1.5V. Nothing is being overclocked, more like under clocked. The PSU is a good quality 550W supply, so I don't think power is an issue.
It sounds to be like something is getting hot as the memory initially works in the system and then later fails. The only thing getting hot inside the PC is the northbridge which runs so hot you can't hold a finger on it. I've installed a fan but no luck. The first PC did initially work, but since the hot weather these problems started, or perhaps it's a coincidence. But the board temp shown in the BIOS is around 40 degrees, so nothing major.
Has anyone else experience problems with memory stability and the GA-770TA-UD3.
Cheers,
-R.