MSI P67A-C43 B3 won't POST with Full RAM Installed

Hello all,
I recently purchased the MSI P67A-C43 B3 mainboard as a custom build
and have been having trouble with it.  I have 16GB of ram for this board
(4x 4GB) and when I have 8GB installed (slots 1 and 3 filled), it POSTS fine. 
When I fill ALL the slots for 16GB total, the board won't POST and just
power cycles ON and OFF and ON and OFF, etc...
I have replaced the memory and the PSU and am about to replace the
mainboard, but wanted to ask if anyone might have a suggestion for
troubleshooting before I do that. 
Here's what I'm running on the system:
mainboard:  MSI P67A-C43 B3
proc: Intel Core i7-2600K 3.4Ghz Unlocked
proc cooler: Corsair Hydro H80 CPU Liquid Cooler
ram: Corsair High Perform Vengeance 4GB DDR3 1600Mhz2x4  (4 of these)
HDD: OCZ TECHNOLOGY 120GB VERTEX PLUS SSD and Seagate 1TB LP Serial ATA HD 5900/32MB/SATA-3G
CD Drive: Sony Optiarc 24X DVDRW SATA
video: EVGA GeForce GTX 560 Ti FPB 1024MB GDDR5 PCB PCIe
PSU: Thermaltake 750W Modular Power Supply. 80+ Bronze
case: Thermaltake Chaser MK-I Full Tower Gaming Case
OS:  Microsoft Windows 7 Professional 64Bit DVD
Any ideas here would be greatly appreciated!  Thanks!

OK, had some time to go test your suggestions here
These are the 1.5V Vengeance RAM Modules.  Tried installing 2 of the RAM on slots 2 and 4 on their own.  System Boots Fine.
Went into the BIOS and changed the voltage applied to the RAM modules from
AUTO to 1.575V.   On AUTO it says is applying 1.5V to the 2x 4GB modules.
Installed the full 4x RAM on all slots... and the system just shuts down.  Power cycling again.
What do you think here?  Bad Motherboard?  Can't think of anything else to try...  totally stumped! 
Thanks!

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    Code: [Select]
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    Code: [Select]
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    OK, had some time to go test your suggestions here
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    Quote
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    Quote
    I've done as many tests as I know how to do.
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    Quote
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    Quote
    CPU+MB+PSU=shutdown right away
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    CPU+MB+PSU+HDD+RAM=BEEP CODE, same one as the above one
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    Quote from: haasje_1 on 25-January-11, 22:16:48
    I had the same problem with a P67A-C45 board. The problem is your videocard .I build my system with a Nvidia gt9500 and it didn't work. After a bit of testing (and also a new mainboard) I found out that after changing the videocard with an old ati card it does work). I send an e-mail to msi support i got a new biosversion for my mainboard (1.68) and everything works fine now.
    Videocard it is. Thanks a lot, I'd never guess.
    With simple ATI card id loads well.
    So, is it going to work with GTX460 if I get latest BIOS?

  • MSI P67A-C43/ Corsair HX620 or Corsair CX 500 Buzzing

    Hello Everyone,
    Been a member long time and recently returned to the MSI fold with this amazing little board. It over clocks amazingly well and is an excellent entry level p67 board. However I do have one issue with my setup which is listed below:
    CPU: Intel 2500K
    Board: MSI P67A-C43 flashed to the latest BIOS (as of May 25th)
    Memory: G.Skill Sniper 1600Mhz 2x4 GB (1.25V)
    GPU: HIS 6950-2GB
    HDD: Seagate 1TB 7200.11 (SATA)
    Optical: Samsung 223F
    PSUs: Corsair HX 620 and CX 500
    Now the problem using either of the two power supplies result in a low noise buzzing sound emitting from the power supply units. It does not matter which one, both exhibit similar behavior. This occurs EVEN if i remove the video card. This only happens when i turn the system on. This is NOT your video card buzzing noise which comes and goes with load on the video card; the noise persists even if i run the system without a video card (of course i can't see anything but i can hear the noise emitting from the Power supply)
    Both these power supplies work without noise in other systems (based on Intel, Asus and older MSI boards).
    Has anyone else experienced this? I know of video card associated PSU related noise, but this is definitely an issue between these two power units and the mother board.
    THINGS I HAVE ALREADY TRIED (in combination and individually)
    1. Disabling all power saving features
    2. Disabling active phase control/ changing between two provided settings for APS
    3. Disabling phase control LEDS
    4. Running at stock, over-clocked and under-clocked
    5. Disabling onboard peripherals (audio, usb ports, etc)
    Have I missed anything that i should try.
    Is this a sign of impending trouble (i.e. should i RMA this board) OR just a cause of annoyance and raging headaches
    Thanks in advance to all readers/ posters!

    Quote from: Bernhard on 26-May-11, 00:31:22
    You are stating that both PSUs do not emit this noise when used on other systems. Were the PSUs plugged into the same wall outlet that you are using now when you tested them on the other PCs?
    Just a possibility that the noise originates somewhere in the electrical supply circuit that you are using now.
    Thank you for your reply.
    Yes that is correct. And yes the outlet is the same as well. I have even done an experiment where i used the processor & memory from this (P67A-C43) in another board (P8P67, and vice versa) just to make sure the CPU and memory are not the culprits. No dice. The issue is definitely between the board and the power supply units.
    As both PSUs have different OEMS (seasonic and CWT if i am not mistaken) I just want to be sure it is not a problem with a board that will cause it to fail later on.

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