|Make sure you have have all the required power cables from the PS connected - the main probably 24 pin connector and a 4 or 8 pin connector to the mboard, and if your video card has (a) power socket(s) you must connect to it (those). |
Did you have the AC power to the power supply disconnected at ALL times when you were fiddling around with components and connections inside the case, including when you were connecting drives ?? ATX power supplies are always powering ATX mboards in some places, including some of the contacts in the ram and video card slots, even when the computer is NOT running, as long as the PS is connected to the mboard and the PS is receiving live AC voltage.
If you installed any ram module backwards in it's slot, then tried to boot the computer, the backwards module and the ram slot it is in are both instantly fried and both can NEVER be functional again. If you have done that, you will see physical damage both on the backward ram module contacts and in the ram slot.
"Also, the computer turns itself off a few seconds after it is turned on. After a few more seconds, it turns itself back on and repeats the process."
You must have the cpu fan wiring connected to the proper cpu fan header, otherwise most modern mboards will shut off within a few seconds when no rpm is detected by the bios coming from the cpu fan header, to prevent the CPU from overheating and destroying itself. .
Whether the computer turns itself on after it shuts itself off depends on settings in the bios Setup.
The ram part number you specified is listed as compatible by Corsair .
The cpu you specified is listed as compatible with the mboard model, but the mboard must have at least bios version 4021. If the mboard does not have that bios version or a higher version number, the mboard may not boot or it may not boot properly
Intel Core i7 930 CPU
Processor spec SLBKP - only
Minimum bios version 4021