Issue(s) with my Mobo. Please help

[Atomsk_TPK]

Ok, first post! 

My Build:

i7-4770k 3.8Ghz

ASRock z87 extreme6

16GB DDR3 G.Skill 2133

GTX 970 FTW 2.0
Corsair H100i GTX
2x 1TB HDD 32MB, 7200rpm
120GB EVO 840
250GB EVO 950

Corsair RM750

I randomly get a POST code of 99 when I boot my computer up randomly (the system stalls at the bios screen). I have learned that the error code 99 means that  "Problem related to PCI-E devices. Please re-install PCI-E devices or try installing them in other slots. If the problem still exists, please remove all PCI-E devices or try using another VGA card". I have tried each of my 3 PCIe slots with the random POST 99 still occuring, I originally was using a GTX 760 with the same POST 99, and the only issue on the MOBO is that one of my USB 3.0 headers has a broken pin (which prevents 1 of the ports from not functioning at all). Now 1-2 of my USB 3.0 ports directly from the MOBO do not function / function sporadically. I have just done a clean install of my OS (Win 7 Pro x64). I also flashed my bios to the newest version and it seemed to only make matters worse, luckily my MOBO has dual BIOS, so I was able to use my alt BIOS config.

 

Does anyone have an idea as to why I am getting a POST 99 error code, my faulty USB 3.0 ports on the MOBO, or if the USB 3.0 Header is causing a short when its plugged in?

 

Thanks all for any knowledge you can provide!

EDIT: I have cleared the CMOS as well.

[Octavialicious]

You can try taking out the CMOS battery, not sure if it will do much but it's worth a try 

Unplug your PSU and take out the battery, leave it for 5 minutes, then put it back in & plug in your computer again and see if it worked 

[Atomsk_TPK]

You can try taking out the CMOS battery, not sure if it will do much but it's worth a try 

Unplug your PSU and take out the battery, leave it for 5 minutes, then put it back in & plug in your computer again and see if it worked 

 

Is this the same thing as clearing the CMOS with the "Clear CMOS" button on my MOBO?

[Octavialicious]

Is this the same thing as clearing the CMOS with the "Clear CMOS" button on my MOBO?

Yes, but I would personally take it out just to make sure it 100% cleared it 

 

But that's just me  

[User1868]

Is this a new build or is this a computer that was fully functional before?

[Atomsk_TPK]

This is a build from about 2 years ago; I have slowly upgraded things aside from the MOBO (RAM, GPU, Liquid Cooler, ect) I don't know when I broke the USB 3.0 header (maybe a year ago) I think the MOBO might be toast, but i wanna 2nd(3rd) opinion.

Is this a new build or is this a computer that was fully functional before?

 

I haven't tried removing the CMOS battery, but I will try that tonight!

 

Yes, but I would personally take it out just to make sure it 100% cleared it 

 

But that's just me  

[User1868]

Maybe try updating graphics card drivers....

[Atomsk_TPK]

Captain Obvious...

Maybe try updating graphics card drivers....

[Atomsk_TPK]

When I went to boot today; It took 4 restarts to get past the POST 99 error code. Took the battery out and let it sit for like an hour. Booted up fine, but I will update if the issue returns (like i expect it too )

[ionbasa]

You can try disabling the USB3 chipset/header in the UEFI and testing to see if you still get the 99 error. If no more POST errors happen, then it's safe to say that the USB header is causing issues and you should RMA the motherboard.

[User1868]

Captain Obvious...

You don't have to be rude. I don't know how informed you are. You only have 5 posts and people inexperienced with technology also come here for help, but I see you are soo smart so I guess you really don't need anymore help....next time instead of insulting someone you can just simply write: "I have already done that" - see? Isn't that better the "Captain Obvious"?!!