Did you replace the memory, or is this in addition to old memory?

If you are running a single module, try another slot. If it also fails, then there is a) an incompatibility (your motherboard is limited to 1600Mhz, but that module should step down to meet the speed), or b) you have a bad or damaged memory module.

If you are running with other memory, consider disabling dual channel memory operation in the BIOS (remove the new memory, boot on the new, and make the change) as the system may be trying to run dual channel across unlike memory modules, which will flat out fail. Also, you may have different memory timings (FSB as well as CAS cycling) and this can cause the system to not properly lock the memory on boot.

I replaced, I know that you cant mix the sticks with each other. Tried all 4 slots. It's a possibility that its bad but somewhere I saw that g.skill tests them out before shipping or something like that. Can't make any changes in the BIOS with the new memory because I just get the black screen with fans spinning at max. So I guess what I should do is make the changes with the old ram, then put the new one in? Also, I resetted the BIOS, its at default settings, so...

Try booting using one module at a time with each RAM slot.

I only bought one module (this one stick is 8gb-max of what my memory supports) . I tried all 4 slots.

Just from looking at the motherboard I can see that there are 4 slots for Ram. However the details on Newegg clearly list a Maximum Memory Supported of 8GB. Unfortunately that information often enough does not mean you can install a single 8GB stick of Ram. Even if you did it this way and it worked you wouldn't want to because the system would not be running the memory in dual channel mode. What all this means is that you can only have smaller sticks of Ram such as two or four 2GB's or only two 4GB's sticks.

http://www.msi.com/product/mb/X48-Platinum.html#/?div=TestReport

http://www.msi.com/file/test_report/TR10_1392.pdf

clearly on the tested Ram sticks for your motherboard they don't list any 8GB memory sticks.

Something else you can try if the above information is incorrect is to clear the motherboards CMOS memory. Most motherboards have a CMOS jumper pin that can be crossed or the battery can be removed for a minute causing the same desired bios reset back to defaults. But in this case clearly you have the wrong kind of Memory Ram sticks for your motherboard.

It isn't the wrong memory module type, but the system will only utilize ~ 7.5Gigs.

DIMM1 must be populated, otherwise the system will not boot.

DIMM1 is the slot closest to the CPU. If the board isn't posting with the stick seated in DIMM1, then there is a possible compatibility issue between the newer stick and your older board or the stick is bad. Ram sticks aren't thoroughly tested unless you order a pair of Dominator Platinums from Corsair. I've gotten plenty of bad sticks in the last 24 years I've spent with computers.

Your board has a 4 digit LED Post:

CPU - CPU is not detected or is not operating properly.
DRAM - Memory is not detected or is not operating properly.
MCH - North bridge is not detected or is not operating properly.
ICH - South bridge is not detected or is not operating properly.
CLK - Clock generator is not detected or is not operating properly.
VGA - Graphics card is not detected or is not operating properly.
LOGO - Logo is enabled and is showing on the screen.
POST - Logo is disabled to be shown.
ATA - IDE or SATA device is not detected or is not operating properly.
MENU - F11 is pressed to select the boot device.
CMOS - Checksum CMOS is failed.
BIOS - checksum CMOS is failed, and F1 is pressed to enter the BIOS Setup.
Or the system is in the BIOS Setup.
MSI :) - The operating system is loaded properly.

If it still doesn't post, let us know what POST Message you are getting.

If you read his last post he said he tried all 4 slots. Clearly his X48 Memory controller can't handle a single 8GB stick of DDR3 memory. There is no 8GB sticks of ram tested and supported by the manufacture. I'm not going to give false hope when this clearly will not work based on the factual limitation of the said hardware.

I'd return the stick of ram, take my losses and try two 4GB sticks that have been tested.

Yes. But has he put it in Dimm1 and looked at the post read out? What if it were to say something else like BIOS? We can't assume the memory is the problem. The point is to make a clarification despite the fact that it seems to work with the older modules.

Wow, thanks for all the info/help. When I put the ram in I get DRAM post code. I think its normal that 8gb or even 4gb sticks aren't posted in the manufacturers info, because the motherboard was made like what? 4-5 years ago? back then these type of sticks were unpopular because of the high price or maybe were even barely available to the general public. Maybe its the stick itself?

It shouldn't have anything to do with the size of the stick. I've used unsupported module sizes in the past. The computer will just use up the memory until it can't utilize any more of it. There isn't anything mentioned in the BIOS about turning off dual channel mode. I assume something like that would be automated. Never-the-less, I have a sneaking suspicion that if you threw in a second identical module, your computer would post, no problem. Now, you should consider getting a couple of 4 gig sticks like Tivon mentioned:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231308 <---Click!

If I might ask, why "specifically" were you wanting to increase your ram?

Is there an option in BIOS to enable/disable dual channel mode? Maybe it doesnt work because its probably enabled? Currently I have only 2GB of RAM (2x1gb) and thats not enough for a game like Planet Side 2, thats why I wanted to increase.

As I said, I saw nothing in the manual pertaining to Dual Channel Mode. It is most likely just automatic. You can fish around in the BIOS and ascertain if there is anything there.