CMOS error, after reboot no post

I just received a new MB in the mail, which I hooked everything up on boot I received a "CMOS checksum error" I went into CMOS setting and reverted CMOS setting to default. On reboot it doesn't seem to post. My PSU is 600W if anyone is wondering. Any ideas, before I RMA?

Also I tried another CMOS battery to no avail.

Motherboard is MSI P7N SLI Platinum
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More about cmos error reboot post
  1. Sounds like a bad board to me. Just in case make sure none of the devices are giving you problems. Try to start up the board with just the video card, power, and one stick of RAM connected. If you still get the same message try using a different stick, and if the result is the same then RMA it. I've seen problems with boards not liking defective devices and getting all kinds of startup errors, but it's likely that in your case you need to RMA it.
  2. According to your post you have a mobo and a PSU. You will need:

    Most likely you have a ram or CPU issue with your bios, but without knowing what you got its hard to say.
  3. Graphics Card = 2x 8800gt
    DVD - Samsung Sata 20x DVD Drive
    Mem= 4g DDR2 800 OCZ
    HDD= 150g Raptor 10,000RPM 2x 320g 7200PRM Hitachi (All 3 are SATA)
    CPU= E6750 Core Duo 2 2.66 Ghz
    PSU= 600W Rosewill
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