Solved Can't enter Motherboard BIOS Gigabyte

August 23, 2011 at 19:07:00
Specs: Windows 7
I have a GA-EP45-DS4P Gigabyte board that boots ok but I can't enter BIOS. On boot if I press DEL or any other key it clicks but does nothing. I've started the machine with the DEL key pressed down and tried all other BIOS keys. Lots of clicking but no BIOS.

Interesting that after POST with or without keyboard installed I get clicks as if keys are being pressed. I do actuially here clicks when I press the DEL button prior to POST.

Here's what I've tried
1. Tried PS2 keyboard with same result
2. Tried other USB keyboards with same result.
3. Booted with just a keyboard , no hard drive and graphics card installed. Same result
4. Removed motherboard and ran outside the case to eliminate case short- same result
5. Upgraded the BIOS using Gigabytes windows software. No change

I've run out of ideas and I can't understand this. I've built many PC's and never seen this problem. However the machine does work
Thanks


See More: Cant enter Motherboard BIOS Gigabyte

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✔ Best Answer
August 30, 2011 at 23:59:16
Clear the cmos again. Make sure the power cable is disconnected when you do it. That should reset the date and time to default and give an error when posting and hopefully an option to get into cmos/bios setup.

You might also try temporarily disconnecting the hard drive and starting it up and see if that generates an error.

Is it possible there's an option in cmos to disable entry into cmos? I don't think I've ever heard of that but if so, clearing it again should reset that.



#1
August 23, 2011 at 20:49:02
Have you tried a PS2 keyboard?

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#2
August 23, 2011 at 21:25:09
yep see my original post -1

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#3
August 23, 2011 at 21:47:54
Your Gigabyte board should require the del key to enter the BIOS screens. You need to start tapping the del key continuously as soon as you start the computer. If you have no success with a USB keyboard then try a PS/2. DO NOT connect a PS/2 keyboard while the computer is running.

Holding the del key down is no good. Tapping continuously is the proper way.

According to the Gigabyte specs (linked below) you have a PS/2 mouse port and a PS/2 keyboard/mouse port. I am not sure why those designations but you may have connected the PS/2 keyboard to the wrong port. Use the purple colored port for the PS/2 keyboard. Do not use any adapters on the keyboard.

http://www.gigabyte.com/products/pr...


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Related Solutions

#4
August 23, 2011 at 21:55:46
Thanks,
Sorry I should have also mentioned I've tapped the del key like mad as soon as I've switched it on. All I get is a series of clicks like the key has been hit too many times - but no Bios. I think I've tried every combo

Yes I've tried a PS2 keyboard from boot- plugged in before I powered up into the purple port

I'm suspecting a bad M/B. My bad spelling above didn't help- I hear a series of clicks without any keyboard attached after post. Its like whatever processes the keyboard thinks there are keys being pressed even when there is no keyboard present


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#5
August 23, 2011 at 22:06:14
Are you also using a PS/2 mouse? If so, perhaps it is defective, or the keyboard may have a stuck key.

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#6
August 23, 2011 at 23:24:21
Didn't try a PS2 mouse- just attached a PS2 keyboard. yes the behaviour is like a stuck key- which clears when Windows starts

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#7
August 24, 2011 at 00:08:21
The manual says:

"To access the BIOS Setup program, press the <Delete> key during the POST when the power is turned on."

so it sounds like you're doing it right, although I wouldn't hold down the DEL key--just continually tap it.

Edit Dang, I shoulda refreshed before posting.


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#8
August 24, 2011 at 21:25:27
Try removing all but one stick of memory and trying again. then try a different stick of memory in a different slot, try a few combinations. A bad stick of memory CAN prevent you from posting and accessing your BIOS as well as giving you all sorts of problems in windows. If your BIOS uses a specific memory address only and that chip is bad then the problem would be most pronounced there only.

You have to be a little bit crazy to keep you from going insane.


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#9
August 30, 2011 at 20:36:16
Sorry been away. Yes I have tried with one stick of ram and swapped them around with all possible combos

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#10
August 30, 2011 at 21:30:16
You said that you updated the bios, but have you tried clearing the cmos or checked the battery ?

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#11
August 30, 2011 at 22:29:50
Yep - did that before I updated the bios

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#12
August 30, 2011 at 23:59:16
✔ Best Answer
Clear the cmos again. Make sure the power cable is disconnected when you do it. That should reset the date and time to default and give an error when posting and hopefully an option to get into cmos/bios setup.

You might also try temporarily disconnecting the hard drive and starting it up and see if that generates an error.

Is it possible there's an option in cmos to disable entry into cmos? I don't think I've ever heard of that but if so, clearing it again should reset that.


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#13
August 31, 2011 at 17:48:24
Yep got it. Interestingly we left the battery out of the board overnight - and when I went back to it the next day and reinserted the battery I got the usual first post error and then another reboot- and problem fgone. Got straight into BIAS and that weird clicking is gone.

I had removed the battery previous ly but only for say 30 seconds or so. I'm guessing that the monster caps on this board hold charge longer than that

Thanks to everyone for their help


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#14
August 31, 2011 at 19:16:14
We're glad you got it going.

Yeah, you never know how long it'll hold a charge. That's why I always try to use the 'clear cmos' jumpers.


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#15
August 31, 2011 at 19:58:49
In the future you can depress the start button after the battery has been removed with the power unplugged to purge the capacitors. As DAVINCAPS stated though, it is best to use the clear CMOS jumper.

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#16
September 10, 2011 at 07:34:51
I believe its a flaw in the motherboards, i have owned a ud7 890fx chipset where you had to beat the hell out of the del key to get in the bios, i thought the board was messed up, i upgraded a last month to the ud5 990fx chipset and it does the exact same thing, i believe its a bios issue with the boards, prior to the 890 chipsets i have never had that issue and tech support doesnt listen other than that the board is rock solid, cant wait for the amd bulldozer

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