Can't access BIOS on Gigabyte Z77X-D3H Mobo.

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So I just fitted a new second SATA HDD into my machine (along with a GTX 760 and 750w PSU) and I wanted to look into the BIOS to check the drive setup but I can't seem to.

If I don't press anything during startup, Windows obviously boots from my original drive (though going through the mobo splash screen seems to take longer than I remember before the upgrade; any ideas?).

Pressing any of the prompted keys on the motherboard's splash screen does nothing, but if I repeatedly hit any of them until the splash screen ends, I eventually just get an everlasting blank screen; not even a Windows boot. It's like it's going to the BIOS but not displaying it; or maybe it's not going to BIOS at all. I've no idea.

I'm using a USB keyboard and mouse and have tried with leaving the mouse unplugged and changing the keyboard's USB port (I've read that USB devices can cause BIOS issues).

Suggestions? I'm not incredibly savvy with this stuff, so bear that in mind. Thanks.
 
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I don't think I do, no. I could look around, but I'm not sure I have one.

Also, I can see the new drive in Disk Management, but it's labeled as "Disk 0" whereas my original drive with the OS on it is "Disk 1". Is this normal? Am I able to just initialise the new drive and use it without checking the BIOS/boot order, or does the OS drive NEED to be in the "Disk 0" slot to let the computer boot properly (like a "master/slave" kinda deal)?

EDIT: Although, I've read that SATA drives don't adhere to the "master/slave" relationship. Does this mean I can go ahead and create the partition on the new drive and not have problems booting Windows later?
 
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SATA doesn't care which position the drive is in. You can do what you want with the new drive in Windows. The mix up in drive ID is probably the fact that the 1st drive the PC will try to boot from is the one with no partition, so it skips to the next drive. Just guessing. I don't know how your boot order looks in BIOS.

Back to your original issue... If you leave the data cable disconnected from the 2nd HDD, can you get into BIOS?
 
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Just tried; no I still can't. Guessing this means it's not the new HD's fault?

I also tried a different USB keyboard just in case, but no luck.
 
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No, it would seem not, if the drive not being there makes no difference. Have you made any changes in BIOS that would cause this?

In fact, you may want to try resetting the BIOS by removing the CMOS battery and then shorting the CLR_CMOS pins for about 5 seconds. (pg. 31 in your MB manual) Then replace the battery. This will reset the BIOS to factory default. Of course you'll have to reset time/date and any changes you previously made.
 
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I don't think I've entered the BIOS for at least a year; it was during the last upgrade I did (when I first got this motherboard, I believe). If I recall correctly, I had a problem booting Windows for the first time, and I think I had to alter something to do with the SATA ports, like enable them or switch the SATA mode from IDE to AHCI or something along those lines. I can't fully remember, but I'm sure that was the last change (even though these values were supposed to be the default, according to the manual). After the change, it detected the HDD and booted Windows just fine.

As for resetting the CMOS, my motherboard manual simply says to touch the two CLR_CMOS pins with a metal object for a few seconds. Is removing and replacing the battery necessary?



 
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Before attempting to clear the CMOS, I found a PS2 keyboard and tested it but it didn't work. Tried with the USB mouse both in and out. Although I will add that even though I performed the same process with this keyboard (repeatedly tapping delete), I no longer got the eternal black screen like I did with the USB keyboard. Instead, it just booted Windows once the motherboard splash screen ended.

Guess I'll try the CMOS. =/
 
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Ok, so it's all working again.

After my previous post, I cleared the CMOS and replaced the battery but the problem appeared to persist.

I then flipped back to the idea that it was a display issue. I took the GPU out to use the on-board graphics, and it worked!

Is this the standard? I was unaware you had to use on-board graphics to reach the BIOS (or at least, Gigabyte's BIOS).

Anyways, thanks for the help. Time to actually get this second drive up and running.
 
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i also have the same issue with 2 (god damn 2 of these peaces of junk) brand new ga-990fxa-ud3 (rev 4.0) and a brand new r9 290's gpu, (kingston 4x4gb ram, 2x wd sata 500gb harddrive, 2x amd sempron 145 cpu, 2x ocz gold 80 plus 1000w psu all brand new) the r9290 wouldn't even register a signal on the screen so i got an old 8800gts card to work on it. all i can do is hit command and gos to black screen. tried skipping and installing Ubuntu from flash drive and it coming back with "cant find file" or something, i need to get into bios.

i brought the mother boards round to a pc repair technician and got him to update the bios to f2 after i couldn't get the r9 290's
to register, the moron must of screwed up the bios update or something because when i got em home the r9 290's wouldn't still register. so i went and bought a secondhand 8800gts for 25 bucks to do what the tech was ment to do and i cant access the bios...
i tried removing the battery, jumping the cmos pins but only to the same no access to bios. the board has duel bios and supposedly when the main bios becomes damaged the back up bios restores the main bios to factory setting.

is there some thing i have to do to make the back up bios restore the main bios or should it happen automatically?
 
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there is no on board graphics on this board im pretty sure.

there's no vga connector or anything like that so i take it there's no on board graphics

i also tried shorting the main bios chip by touching pins 5&6 and pins 7&4 in the hope the back up bios would detect the main bios was not loading or had been corrupted and then kick in, but neither of the combinations worked.

i have to say gigabyte boards suck, the whole point of duel bios is if the main bios is not working the back up rewrites the main bios to factory default. i have requested a refund from the seller on ebay and im going to get 2 asrock z8fm extreme 4 boards. thats the first and last time i buy a gigabyte board, ive read so many people have had the same problem with them and there tech support is a joke.
 
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I had the same problem as the OP and my fix was to disconnect my CH USB pedals (I am a fan of flight sims) if I want to get into the BIOS. So silly as it seems, if the pedals were connected the BIOS screen didnt show. Just a plain blue screen. Perhaps are the pedals sending a continuous signal that screws up the Bios? For those still having this issue, try to unplug akl your Usb decides, appart from keyboard and mouse, reset your pc, and plug one by one, checking if you can get into BIOS.
 
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You may be onto something. If the board can boot to a USB stick, it may be confused with a non-drive USB device.
 
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I have the Gigabyte Z77X-D3H motherboard and was having the same problem. I have both the CH USB rudder pedals AND the CH Flightstick. The pedals weren't plugged in, but the Flightstick was. When I removed the Flightstick I was able to enter the BIOS setup normally. Who'd have thunk?

 
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"Your answer" says the heading of this text box. All I have is a bit more in the form of symptoms that I will ad in the hope that it helps some one to find a definitive answer to... What is the question? I suppose each case is a bit different. Some thing is preventing some motherboard configurations from properly entering the BIOS setup menu.
configurations I have and have tried:
Main board: GA-790XT-USB3 (rev. 1.0)
processor: Phenom II x2 555 supposedly unlocked to four cores before I updated/reset the bios
first/original GPU: Amd Radeon r7 250
second/alternative GPu: SPARKLE SXG2101024S3LNM
both usb and PS2 key boards tried both in working condition and normally relieved in post screen
NOTE: I do not have a case speaker. I do not have a speaker attached to the header where the other case devices attach.
???Is that a possible clue????
Here are my symptoms.
1) I can boot to the windows operating system on my SATA hard drive normally.
2) I can use the PS2 and usb keybpards to enter the boot configuration menu to set a boot device, the recovery menu and the update bios with a file menu.
3) when I am in the post screen after boot, the delete key, either from the numpad or the other delete key, sends me to a black screen with a "_" flashing in the upper left hand corner.
----a) when the screen decribed above is visable my keyboard is dead ie: pressing crrl alt delete does nothing and the LEDs do not light when numlock scrlock shftlock are pressed. This is true for usb and ps2 key boards.

I have reset the bios with the jumper, by removing the battery and PSU connector for an hour and by updating to a newer Bios in windows 7 using @bios. No change.
I have removed the ATI Radion r7 250 PCI-e graphics card and tried a SPARKLE SXG2101024S3LNM, removing all drives ide and sata, removing all but one stick of ram, using both PCI-e slots and each ram slot. No change.

Is there a better graphics card to try?
Is there another way to connect a monitor to a GA-790XT-USB3 (rev. 1.0) motherboard?

I hope that this information is of some use
thank you all for posting this information here
blessings
chuck
 
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