Memory controler going crazy

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ikvn

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Dec 4, 2013
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10,510
I had to test a friend's PSU and GPU on my computer today, because his computer was crashing and refusing to start.
After the test I returned the parts to him and then my PC started acting strange, not seeing one of my 2GB DDR III 1333 sticks, refusing to start, crashing, etc.
After excessive testing I figured out that the motherboard no longer can run 2 sticks of RAM at 667Mhz (1333) and I had to put it at 400Mhz, after which everything started working again.
Can someone suggest what is going on ? Can the PSU damage the memory controler on the motherboard to the point that it can't run 667 Mhz ?
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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Not having any idea of what the mobo and CPU are can only start by suggesting basics, especially when you give little to no information to work from...any way sorry, didn't know you had obviously tried that, so no doubt you know the next steps to try also and I'll just fade away ;)
 
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I

ikvn

Honorable
Dec 4, 2013
3
0
10,510
Maybe you should read the original question again. I'm not asking how to fix it, I'm trying to understand exactly what happened to avoid such incidents in the future. This looks like permanent damage and not something that can be fixed by switching an option in the BIOS.
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
67,883
40
126,960
Would something like that damage something like the DRAM so it will run at one freq yet not another - never seen that happen, am guessing here since that's all I can do since you don't provide any info on the hardware, you've got a socket 775 or AMD mobo
 
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