MSI K8N Neo2 Platinum has some SERIOUS vdimm issues

Question

I did this post to other forum as well and I can be sure I'm not the only one with this problem and this has effect only if you are overclocking your system. I really hope some of the guys from MSI reads this post and if does not we need to notice them about this problem.
The link to other forum can be founded here
Problem #1
When you select (from BIOS) Cell Menu -> DRAM Configuration -> RAS to CAS (Trcd) and change the value to "2" it seems like it forces voltage to 2,7V, no matter what you select your Memory Voltage from BIOS (use multimeter if you don't believe).
Problem #2 (long story but keep reading, it's worth of it)
I was just tweaking my system up and I tried desperately achieve higher clock speed to my CPU, tried kinda everything out I could, more Vcore, more Vagp/Vchip, more vdimm, looser memory timings, dividers, all this without result.
After a while, I got my CPU running rock stable at 2520MHz with 1,55V (3500+ NewCastle, 252x10), Memory voltage(VDIMM) 2,65V and I was using 5:4 divider so my ram was running with 3-3-3-5 timings at 210MHz(Max Memclock: 166 used), VAGP/Vchip 1,50V. This far, all prime stable, superpi stable, 3d stable, etc, no problems at all.
So, I decided to go 2530MHz and higher. I fired my HTT (FSB) to 253MHz and it booted up. Went fine, and after Windows started I first ran SuperPi8M, 3DMark05 and PCMark04, it all went thru fine. Then Prime95, gave me error after 16mins. I just thought that maybe it didn't get enough juice, so I gave some more. I gave like 1,6V to cpu and I thought it should be stable now, but just a 8 minutes after I started Prime, I faced this same error again. Back to BIOS and I lowered my HT Frequency to 3x and I tried again, and now it took 11 minutes and Prime failed. Only problem I could imagine now was my memory, so I used loose 3-4-4-8 timings and guess what, Prime gave me error after 2minutes. I was totally pissed off and I thought CPU can't go any further.
This was rock stable:
CPU: 2520MHz (252x10 / 1,55V)
RAM: 210MHz (3-3-3-5 / 2,65V)
VAGP: 1,5V
And this was not stable:
CPU: 2530MHz (253x10 / 1,6V)
RAM: 210,83 (3-3-3-5 / 2,65V)
VAGP: 1,5V
And now comes the funny part. After like 20th visit to BIOS I increased my VDIMM to 2,7V and this wasn't stable neither, it was like 10 minutes and Prime failed. Okey, so AGAIN, back to BIOS and I ACCIDENTALY decreased my VDIMM to 2,6V and... it was stable, I ran prime like 6 hours and 59 mins and it was all ok. After that I was like ":censored: I did?" I just decreased my VDIMM and now I'm able to do higher overclock. My system is now running 2550MHz (255x10) with 1,6V
So my stable system now looks like this:
CPU: 2550MHz (255x10 / 1,6V)
RAM: 212,5MHz (3-3-3-5 / 2,6V)
VAGP: 1,5V
Can none of you guys give me some info what the h--- is this?!

Answer 1

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Originally posted by Zebbo
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Originally posted by RollerCam540
Okay, let's try this again: I'm not a hostile guy and I didn't intend to offend your intelligence with my first post. I know you're thinking, why did I post the first post then, if I didn't intend to offend you? Well I'll tell you why:L
I'm truly sorry, I sometimes get nasty with these things. The "New member" under my name don't mean that I'm new to whole overclocking scene so that's why I don't need thus' Basic Overclocking Tips . And if I did hurt your feelings somehow, I'm sorry, I truly are. This was not what I planned this to be, I was just looking people with same experiences like I do.
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Originally posted by RollerCam540
You are blaming the motherboard for something that I feel you cannot blame the motherboard for.  Why do I say this?...
Well, I understand you feel way like that, but I've tried everything else and only thing I can come up to is motherboard. Like the CPU example you gave me, I can ignore it easily right here; The only thing this memory integrated controller does is data transfering, and as far as I know the motherboard handles the power circulation for memory, not the CPU.
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Originally posted by RollerCam540
Yes, the fact that VDIMM goes up without your consent is wierd, that would qualify as an issue. I'm assuming since your a smart guy, you have the latest BIOS and/or you've researched/tested all BIOS' to determine which works fastest/best with your configuration.
I assume you referred with this to an Trcd issue. And I have nothing to say to that, you can test it out if you want and be sure to get multimeter so you can be 150% sure about it. I've also tried 1.36, 1,37, 1.4 official, 1.41, 1.51 and 1.5X bioses and they all give me same problem. Trcd 2 forces your voltage to 2,7V, no matter what choose from BIOS.
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Originally posted by RollerCam540
For every guy you claim has trouble with their OCZ memory, there's a whole list of guys who're successfully using that memory in the A64 nvidia forum. Does this still mean it's a motherboard problem?
No, I don't have OCZ brand memory. I have Infineon by myself, so this far this has nothing to do with OCZ.
Example; I know alot of people who are using Kingston with this board and it's running all fine, I also know people who are running same set of Kingston as these peoples whos PC works great but still they are facing random memory problems. Same thing goes for OCZ too.
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Originally posted by RollerCam540
Look, I would be upset if I couldn't go higher than 210mhz FSB but I wouldn't be blaming the motherboard if I didn't know it was the motherboard?
I always do my research well and I'm not blaming anything 'til I'm sure of what is causing my problem. But in this case, I'm that 150% sure it is motherboard. (And by the way, my mobo does 340 FSB Prime & 3D Stable so that's not an issue)
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Originally posted by RollerCam540
I would hate to see you buy another motherboard only to find out the limiting factor was your CPU.
Don't be, cause I actually could do that to proof I'm right here and the issue is mobo
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Originally posted by RollerCam540
Have you tried running your computer 1:1? Do you get any memtest/goldmem errors with it 1:1?
This was kind of stupid question (sorry :D), you can't run 1:1 divider with memory stick which has example PC2700 SPD information (you can do that with A64 Tweaker but no use if you're planning to do memtest). According to Asus report this is caused by A64's integrated memory controller.
So let say this one more time, the voltage of your memory has nothing to do with A64's integrated memory controller, your motherboard handles this. That's why I know this is motherboard related issue, not CPU, memory, PSU, or anyone else I didn't mentioned.
I guess you got some of the answer you wanted to hear, but if you got any xtra questions, feel free to ask. Maybe the best way is to contact me via Messenger.
I got to tell you that the A64s have a lot more to do with the memory than the boards do. The cpu really has to be matched to the memory and not all 3500+ cpus will run a certain type memory the same. I have tried several diffrent boards and several diffrent types of memory and it seems to me the cpu has more to do with not only the memory timings they can handle but the speed as well. Also cpu temps can make a diffrence here as well. Remeber the controllers are in the cpu. I would also say that the older 3500+  did not have as good of controllers.