BIOS hangs

Small problem:

I have installed the same computer (specs are written below) and when I start it you will find the CPU, Initialising USB and find 4098 ram, but right after that, it seems that the whole computer hangs. Can not get into the BIOS setup and the keyboard does not react, but has power (the same with the mouse). It is the image on the screen so I can not POST. Have looked in the user manual to the motherboard, but where is there anything about such an issue.

Specs:

Motherboard: MSI P7N SLI Platinum, nForce 750i SLI
Ram: OCZ DDR2 PC8500 4096MB KIT, Reaper HPC
Graphics: Sapphire Radeon HD 2900 PRO 512MB GDDR3
CPU: Intel Core ™ 2 Duo E8400 3.0GHz
PSU: Chieftec Super Series PSU 650W Modular


Someone who can help me with this?

nForce with 4gb ram is the reason for failure.

Have you updated the BIOS? So it will have 45nm CPU?

as written, I'm not into the BIOS setup to do anything and it hangs up before it loads anything

Have you tried with the CPU + graphics card and only 1 ram strip and no other PCI cards?

I have already tried with no other PCI card and only 1 ram stick, but without success. other proposals?

How long has your PC worked? Have you installed a distance screws under the motherboard? Is CPU Cooler attached properly, the video card is in the right track + possibly PCI power if it needs it?

next 12V of cpu?

Try to set your video card in the other PCI-slot where it normally should be.

Have you tested clearing the CMOS? Check the manual for how it is done on the MSI card, you may well need to connect based on power and remove the battery as well, this varies from HK to HK and will be in the manual.