Oh Oh! Did I screw up my BIOS by doing a CMOS Reset?

[frankgomez75]

I was messing with my board, adding watercooling, new sound card, etc..... it booted up fine one day, but I decided to change the fans around for better airflow. Also added a new SATA HD.

System didn't boot up afterwards. Decided to reset the CMOS, but not paying attention, I had the jumper in the RESET position and booted up the mobo while doing so. I grabbed my mobo manual to check and realized I was putting the jumper on wrong. So, I put it back to its NORMAL position, but now I can't the mobo to boot up!

Its a DFI NF4 Ultra-D. Anyway to fix this short of RMA?

To rule out watercooling I checked extensively for leaks and there are none. It just stopped booting after I put the jumper on the CMOS incorrectly.

 

[Polish3d]

I hope not. I've done that before also. Left it in the reset position. Hope you get it resolved...that seems crappy that it would fail just for that

 

[gac009]

I did that once myself about a year ago. I left the jumper on and tried to boot, what happened was that it damaged the bios. there are ways to reflash the bios but after expiermenting with those for about 14 hours and having no luck I had to bite the bullet and PAY for a new motherboard as I was the one who broke it and thus it was not covered under warranty.

try these links first though

http://www.biosman.com/biosrecovery.html
http://forum.iamnotageek.com/p-58142.html

 

[daniel49]

Originally posted by: gac009
I did that once myself about a year ago. I left the jumper on and tried to boot, what happened was that it damaged the bios. there are ways to reflash the bios but after expiermenting with those for about 14 hours and having no luck I had to bite the bullet and PAY for a new motherboard as I was the one who broke it and thus it was not covered under warranty.

try these links first though

[L=http://www.biosman.com/biosrecovery.html]http://www.biosman.com/biosrecovery.html[/L]
http://forum.iamnotageek.com/p-58142.html

autoexec.bat file how old are these documents?

 

[w00t]

Originally posted by: Frackal
I hope not. I've done that before also. Left it in the reset position. Hope you get it resolved...that seems crappy that it would fail just for that

ya, I am sure he will get this fixed it couldnt of screwed sumthing up too bad. if anything it might take replacing bios chip or sumthing.

 

[V00D00]

The question is... why did you reset the bios in the first place? Didn't you say it didn't boot BEFORE you attempted to reset the bios?

Disconnect everything from the motherboard except the power buttons and the power cable. See if it will boot then. You should at least hear the beep when it gets through the POST if you didn't fry your bios.

 

[gac009]

oy, sorry the forum one is from 2000...errr I have some other links about this still floating around my immense bookmarks collection but the biosman one is from 2004 and the information seems pretty vaild to me as far as flashing a corrupted bios. I am not sure if he corrupted his bios by attempting to boot with the clear cmos jumper in place but if he did then this should help him.

 

[Corporate Thug]

WOW, i'm the very same situation....

my plan is to create a bootable pen drive (sense the bios defaults the primary boot device to be "removable storage") and then flash the bios

lemme know if you come up with a better alternative

btw, where can we get new BIOS chips???

 

[Allio]

Huh. I've done this before on my board with no problems. I didn't even know it was the wrong way, thanks for the heads up.

 

[Bozo Galora]

quote......
· Find the jumper that clears the CMOS, put it into the clear position for several minutes, put it back in the normal position, plug-in the power cord, and push the power-on button. If you apply power to the motherboard with the jumper in the clear position you may damage the motherboard.
unquote

http://www.duxcw.com/dcforum/DCForumID3/248.html

to clear the cmos battery that way you unplug the power cord.. and u short the jumpers by switch the jumper from 1 and 2 to 2 and 3 wait 30 seconds and change it back to 1 and 2 powering up a system while the cmos jumper is on 2 and 3 can cause damage to your motherboard effectively killing the board.

http://forums.invisionpower.com/lofiversion/index.php/t172312.html

 

[WebDude]

I recently had a problem with my DFI board not booting all of a sudden, and got this reply from DFI tech support:

Sir clear the CMOS exactly according this procedure and retest. It is also possible the power supply can run fans but not boot the board. You may need retest with another known good power supply. See how to really clear the CMOS below. Thank you.

Here is the 'official' DFI way of clearing the CMOS:
1. pull power *A/C Power from wall outlet*.
2. pull battery
3. clear cmos jumper for minimum of 30-60 seconds *For Real troublesome systems use 8 hours*.
4. replace cmos jumper to normal position
5. replace battery
6. replace power *A/C Power from wall outlet*.
7. boot to bios and load optimized defaults
8. save and exit
9. boot back to bios and now you can change settings to your liking. *Is what we are trying to get to*.
The above is especially true after some unknown boot failure and after a bios flash.

In my case it turned out that the power supply had gone flaky (kinda weird, cuz it sorta worked, like it wasn't stone cold dead, but replacing it fixed the problem pronto). Anyway, try DFI tech support. You may need a new bios chip, or you may need to RMA the board. Best of luck.

 

[Corporate Thug]

Originally posted by: WebDude
I recently had a problem with my DFI board not booting all of a sudden, and got this reply from DFI tech support:

Sir clear the CMOS exactly according this procedure and retest. It is also possible the power supply can run fans but not boot the board. You may need retest with another known good power supply. See how to really clear the CMOS below. Thank you.

Here is the 'official' DFI way of clearing the CMOS:
1. pull power *A/C Power from wall outlet*.
2. pull battery
3. clear cmos jumper for minimum of 30-60 seconds *For Real troublesome systems use 8 hours*.
4. replace cmos jumper to normal position
5. replace battery
6. replace power *A/C Power from wall outlet*.
7. boot to bios and load optimized defaults
8. save and exit
9. boot back to bios and now you can change settings to your liking. *Is what we are trying to get to*.
The above is especially true after some unknown boot failure and after a bios flash.

In my case it turned out that the power supply had gone flaky (kinda weird, cuz it sorta worked, like it wasn't stone cold dead, but replacing it fixed the problem pronto). Anyway, try DFI tech support. You may need a new bios chip, or you may need to RMA the board. Best of luck.

wow, this actually worked for me. now i can go into BIOS and make changes and the computer restarts and boots fine, the only problem is that my windows is corrputed and i am putting in the XP disk in there to repair, setting the primary boot device as the cd-rom, but the computer doesnt load XP, it just keeps saying corrupted file, please try to repair with the original CD