Black screen even after BIOS reset? Help please!

Adam Pruner

Reputable
Jan 19, 2015
3
0
4,510
Hi guys,

first of all, here is my spec, first time upgrading my PC, I bought a whole brand new one from NCIX. Boxing week special for $800

Corsair CX Series CX500 500W Plus Power Supply
Corsair Vengeance Blue 8GB Ram
Kingston HyperX Fury 120gb SSD
ASUS M5A78L-M/USB3
ASUS Radeon R9 270X
AMD FX-6300
ASUS DVD Drive
Win7 Home Premium

so, heres how my issue came about (skip if you wish, it is funny, however, and will help you understand the context of my issue):

This computer is pre-built BY NCIX. HOWEVER, they shipped the gfx card seperately, so I knew I had to put it in. I had put in gfx cards before, so I was like oh I got this ez, so I plugged it into its PCIe x16 slot and everything, BUT I forgot to plug in the 2 6 pin cables to the PSU.

This screwed me over real bad, as I plugged in the hdmi cable, started the PC and nothing came onto my screen, now I have a second monitor (that is vga) so I plugged that one into the mobo itself, everything ran fine. So I was like hm why isnt my gfx card working? So I googled around and found the possibility that it might be my BIOS not set to autodetect, or the gfx card slot. So I went into BIOS again thinking okay i got this, and I changed a setting, but I'm not sure exactly which one. I believe I changed something like: the default output device to a PCI slot, but I didnt see PCIe x16, however it was the only option even close to PCIe x16 so I thought, whats the worst that could happen?

Well, my gpu still didnt work (because those 2 6 pin cables are still not plugged in) so I try plugging the vga monitor back in, and it wont launch to that either. I figure I definitely made the wrong choice. About this time I read something about the 2 6 pin power cables, and plugged those in, and found the power indicators on the gpu turned green and my reaction was just "Wow, I'm an idiot."

and here is my current issue:

TL;DR for above: I screwed up my bios settings and changed the ouput display to PCI, and I do not have a PCI card.

I figured there must be some way to reset my bios without being able to see my screen, so I tried the "remove the cmos battery method" that I saw on this forum, wikihow, etc. I did ground myself, and I did hold the power button for 15 seconds to make sure that the extra energy is removed, and I placed the battery back in after about 5 minutes. I plug the pc back in, flick the psu on, and turn on the pc with the vga monitor plugged in, expecting to get a visual.

Nothing. I tried unplugging and plugging the vga monitor back in to make sure it sensed the fact it was plugged in, and it did. This was yesterday, so I tried it again tonight, same deal, no output.

Everything else with my PC seems to be 100% a-okay, every fan is spinning, no weird beeps or noises on startup like that, so I figure its some weird BIOS issue.

One interesting thing to note, before I reset BIOS, my PC would boot straight to windows (with no output to my VGA monitor, this was after I changed the setting in BIOS) and I could hear the windows 7 sound coming from my headphones. After I reset my BIOS, I couldn't.

Sorry for the tedious post btw, this is just a really bizarre issue because theoretically it should be back to default settings, which should show the bootup on my vga monitor. Odd.



 

Rhinofart

Distinguished
Jan 30, 2006
977
0
19,360
Remove your GPU, and hook your monitor or whatever to your motherboards outputs. There should also be a BIOS Clear / Reset button on your motherboard itself. Press then, boot into BIOS and you should be good.