GA 990fxa ud3 black screen after bios

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NightWolf724

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Jun 23, 2015
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Whats Up Tech Gurus? Long time lurker, first time poster.
I am running a build with the following components.

Mobo:GA 990FXA-UD3
PSU:Corsair HX850
CPU:AMD FX8350
RAM:G Skill Rip Jaws X 8GB (Single Stick @ 1366Mhz)
GPU:EVGA GTX 980Ti ACX 2.0
SSD1:Crucial MX200 500GB
HDD2:WD Green 1TB

Ive Recently Purchased Corsairs H100iGTX and wanted to experiment with overclocking, i was tweaking a few days ago and was having no boot/posting/OS issues, buut after some time of tweaking i was unable to get prime95 and or OCCT stability, so i went back to factory defaults (B Clock, Core V etc..)

With my day off and more time to experiment it was back to the drawing board and tweaking, I bumped my Frequency by .2Ghz, and my Core and NB by one, and now my build has gone wacked. BIOS post comes up but its logo orientation/resolution seems a bit too large, i am unable to press Del/F12/Tab to enter any bios settings, and i get a black screen after post, windows WAS coming up but would fail on boot, and my monitor would lose connection and tell me to check signal. (Now windows isnt popping up at all, signal from GFX not lost as it was before with failed windows boot) i've cleared the CMOS via Jumper, Battery as well.

I feel stumped on how to get my system working again, and getting past this black screen, and or even getting to my BIOS Settings or boot options to restore my defaults. I called gigabyte customer support, they were helpful but were unable to get me back up(they suggested trying another GFX card, which i do not have :/ I was suspicious of my GFX card maybe being the culprit being that my bios splash logo screen seems a bit off, gfx card fans spinning, led's lit up, and now im running in circles, feeling stumped..

Does anybody have any clues as to how this could have happened or maybe something i could do?
 
Solution
J
I guess we posted at the same time -- I don't know what to say on that keyboard thing - I keep a old style ps/2 type around for these things when the usb type may not work ??

it best to use the usb ports closest to the ps/2 input on the board .. I don't know if resetting would turn off usb support ? would not think so but you never know
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junkeymonkey

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Nov 11, 2013
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well as they say overclocking is at your own risk

seems like all you should need to do is remove the boards battery for like 5 sec. or so to reset the bios ..

'' I was suspicious of my GFX card maybe being the culprit '' before you reste the bios remove the card as well completely from the slot then put it back in and hook up the power leads -- some times a bad seating of a new card can be a issue and I like to place it in and out of the pci-e slot 2 or 3 times to insure it ''scratches in'' a good connection with the slot ..

its seem like the card was working fine seeing you were able to display to run them ''stress'' tests?? guess they did not stress your system too much ??

 
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NightWolf724

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Jun 23, 2015
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took out the battery and placed it back in still no luck, the stress tests i ran were prime 95 and occt for CPU and 3D MARKs' Firestrike for gpu, never seen the GPU temps go past 65c. reseated the gpu a few times as well, no luck in that aspect either :/

 
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junkeymonkey

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did you do any bios update on the board ??? and if so did you use the right bios for the revision of your board ?

one thig about them windows oc programs is that they maybe overriding the bios when windows try's to load . unless your overclocking just in the bios and not anyway wile in or through windows at desktop -- have you booted in safe mode to se if it will display to desktop ??

 
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NightWolf724

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Jun 23, 2015
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overclocked directly from the bios, bios version is up to date and correct for the board, would try to boot in safe mode, but i cant even get to that option, no inputs from my keybaord are getting me to my bios setup or boot options :(
 
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NightWolf724

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Jun 23, 2015
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ive been reading around and some people are saying that plugging in an older keyboard (PS/2) as opposed to a usb keybaord might help me overcome this issue of none of my keybaord inputs registering to get me into boot options/bios settings. any thoughts on that?
 
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NightWolf724

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Jun 23, 2015
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ahh i did not know that, im assuming this option must be change via the BIOS settings, which im still unable to acess, i cant change anything at the moment, :'(
 
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junkeymonkey

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Nov 11, 2013
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I guess we posted at the same time -- I don't know what to say on that keyboard thing - I keep a old style ps/2 type around for these things when the usb type may not work ??

it best to use the usb ports closest to the ps/2 input on the board .. I don't know if resetting would turn off usb support ? would not think so but you never know
 
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Solution
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NightWolf724

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Jun 23, 2015
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actually now that i think of it, this forum post reminded me that i do infact have a single ram stick clocked at 1866 but was unable to reach these speeds due to being stuck in single channel because of only having one ram stick, i went and enabled XMP and clocked my ram higher to this 1866 speed, that was the only difference in the overclock tweaking this time around, maybe this could attribute to my failure to boot?
 
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NightWolf724

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Jun 23, 2015
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So i plugged in an old keyboard, and for some reason the dual bios kicked in....not sure how that happened but all is well now

 
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