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idata
Community Manager
1,857 Views

How to clear CMOS on DZ77Ga-70k?

How do I clear CMOS respectively reset all BIOS settings?

I get the "No Video Error" beeps, I had disabled the internal GPU earlier and my dedicated graphics card is dead.

Remove the battery? Because the battery tray looks a bit different from what I am used to.

Regards

Horaxon

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5 Replies
idata
Community Manager
459 Views

The Intel Support article here: http://www.intel.com/support/motherboards/desktop/sb/CS-028780.htm# noboot Desktop Boards — Troubleshooting BIOS issues

States that it is applicable to the DZ77GA-70K.

But I don't think that the battery can be removed with a screwdriver.

Just wanted to note.

idata
Community Manager
459 Views

  • Unplug the power supply.
  • open chassis taking all necessary precautions to avoid electrostatic discharge and personal injury
  • locate CMOS jumper **see image below
  • move the jumper from 1,2 to 2,3
  • plug in the power supply and boot the system
  • after post the setup runs automatically
  • press F9 to restore defaults
  • save and exit
  • power down system and move the jumper back to original position.
idata
Community Manager
459 Views

Yes, that actually worked, so thank you.

Is that why the battery tray is different, to discourage people from actually removing the battery?

If that's the case, I think the support article should be updated.

idata
Community Manager
459 Views

Glad to hear it worked!

I don't know the answer to your question about the battery tray, though.

idata
Community Manager
459 Views

Okay, I think its time to better illustrate the issue at hand ;-)

I searched for some pictures (hope the hotlinking works) and made some myself of neweggs flash viewer thing.

So, here are the direct links:

1. Classic mainboard with battery tray I used to know

http://images.pcworld.com/howto/graphics/116583-2208P152_2B.jpg http://images.pcworld.com/howto/graphics/116583-2208P152_2B.jpg

2. Another one. Please note the metal latch.

http://img.ehowcdn.com/article-new/ehow/images/a05/oh/ep/change-battery-ibm-laptop-2379-800x800.jpg http://img.ehowcdn.com/article-new/ehow/images/a05/oh/ep/change-battery-ibm-laptop-2379-800x800.jpg

3. Latch and tray with battery removed would look similar to this

http://www.toolsfix.com/img/1107141708486399.jpg http://www.toolsfix.com/img/1107141708486399.jpg

4. This is a current Z77 based mainboard, which has been released recently

http://www.evga.com/PRODUCTS/IMAGES/GALLERY/151-IB-E699-KR_XL_5.jpg http://www.evga.com/PRODUCTS/IMAGES/GALLERY/151-IB-E699-KR_XL_5.jpg

5. Close up of the battery tray. The latch is closed. Also a current generation mainboard.

http://i.imgur.com/jK4SZ.jpg http://i.imgur.com/jK4SZ.jpg

And now the Intel board:

6. No latch, but a plastic cover on top of the battery

http://i.imgur.com/A6fjR.jpg http://i.imgur.com/A6fjR.jpg

7. Same board, slightly different angle.

http://i.imgur.com/RfnLr.jpg http://i.imgur.com/RfnLr.jpg

The difference is quite easy to see.

I would like to hear from Intel about this design choice ;-)

Regards

Horaxon

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