P7N SLI-FI, No POST no Video

Question

Before I begin, specs:
500W EarthWatts Antec Power supply
x2 1GB 800Mhz DDR2 Patriot Memory PC2-6400
PNY GeForce 8800GT 512MB DDR3
Intel Core2Duo 3.0 Ghz, E8400, 6MB L2 Cache, 1333 MHz FSB, 45 nm
MSI P7N SLI-FI, Nvidia 750i SLI supporting DDR2
If I missed something you'd like to see I'll throw it in but I think that should be all that is needed.  So the problem lies in that once I set up everything, and power on, I've no video but a blank screen to look at.  The graphics card was sitting in the mazarine PCIE slot.  I also tried using an ATI X300 card that is in my current working machine and placed it into the last of the PCIE slots that don't support PCIE 2.0 like the mazarine does.  I find that I still have no video.  My memory sticks are placed in the 1 and 3 slots as listed in the manual.  I receive no POST beeps either.  The GeForce 8800 GT does have a problem with PCIE 1a slots and produces a problem similar to what I have now: no video.  However this shouldn't be able to be the problem as the card and the PCIE slot I placed it in are both 2.0 compatible.  I'm checking all parts more than once just to be sure.
Anyone have any ideas?  I'm open to suggestions, anything from highly technical to flying monkeys.

Answer 1

Have you connected power cable for the CPU:
"PNY GeForce 8800GT 512MB DDR3"
Have you connected power cable from PSU to the VGA too?
"x2 1GB 800Mhz DDR2 Patriot Memory PC2-6400"
Have you done >>Clear CMOS Guide<< {With power cord removed}
And with one memory stick only in a 1st DIMM?
"I also tried using an ATI X300 card that is in my current working machine and placed it into the last of the PCIE slots that don't support PCIE 2.0 like the mazarine does.  I find that I still have no video. "
Use the same PCI-E slot, e.g. the 1st one PCI-E. It should boot.
"500W EarthWatts Antec Power supply"
List amperes per each rail, example in my signature.
Also have you tried:
Test the motherboard outside of the case to verify that the motherboard is not shorting to the case and causing a problem
     •    With only the CPU and heat sink, memory, and video card (or onboard video) connected to the motherboard, place the motherboard on a non-conductive surface and retest the motherboard
     •    Check the case mounting standoffs to verify that they are lining up correctly with the mounting holes on the motherboard.
"Intel Core2Duo 3.0 Ghz, E8400, 6MB L2 Cache, 1333 MHz FSB, 45 nm"
Re seat the CPU as well.
Also inspect CPU socket for bent-ed pins.
"Intel Core2Duo 3.0 Ghz, E8400, 6MB L2 Cache, 1333 MHz FSB, 45 nm"
Which one you have?:
Wolfdale E8400 (3GHz, C0, 65W)     1333     9      SINCE 2.0
Wolfdale E8400 (3GHz, E0, 65W)     1333     9    UNDER TESTING
http://global.msi.com.tw/index.php?func=prodcpusupport&prod_no=1459&maincat_no=1&cat2_no=&cat3_no=#