bios help

[bhder]

cmos checksum error defaults loaded
tried to clear cmos jumper,[25 time]
remove battery, unpluged atx connector,removed mermory remove all extras still no boot
bios are set to hard drive first so no floppy seek
help
motherboard abit kt7a raid/amd 850tbird
can enter bios but will not make any changes [keyboard act like it's lockup] tried 2 keyboard no help
are my bios fried or maybe hardware problem? pc was working great till this weekend
can you help please
bh

[classicsoftware]

Does it stop after the error? Does it give you the option to continue?

Please advise???

[bhder]

option is there but F1 to continue but nothing happens locked
bh

[classicsoftware]

Did you do aything to the system? Or it just failed to post after you turned it on?

[Whyzman]

Hmmmmmm......I'd suggest a barebones boot, (i.e., pull everything but RAM, Video, and Keyboard). You might want to try clearing the CMOS again first before trying. Also, if the default is not set to floppy seek first I'd do that in case you make it through POST.

If you're running Win9x you might want to run a RAM checker:

http://www.webattack.com/download/dlmemtest86.shtml

[bhder]

i cleared cmos ,unplugged atx connection,remove battery,still shows my 850 cpu and I can't make any changes.. No I have not OC, or flashed bios
Abit just [january] repaired board.. I did forget to switch cmos jumper once:eek:
bh

[Whyzman]

Did you try the barebones boot I mentioned?

[Budfred]

Hey Whyzman,

Do you think doing a barebones boot might be worth a try???:confused: :D

[Whyzman]

What Budfred a Barebones boot? :confused:

What in the world is that? :D

[bhder]

strip to just video ,one stick of ram,no sound ,unplugged hard drive
remove battery, unplugged atx connection reset cmos overnite
still if I get to bios setting it lock and change don't take place
Are bios bad??

ps switch out ram 3 times:confused:

[Whyzman]

Are you trying to make adjustments in the BIOS and then attempting to save?

When you clear the CMOS are you getting the default values? If so, does it give you a floppy seek first?

Were you running any type of Anti Virus?

[bhder]

error message CMOS checksun error: defaults loaded : then locks up
or
bios opens for about 5 sec then locks up
floppy seek is disable
no anti virus

[Budfred]

The consistency of the Checksum Error message suggests that the BIOS may be corrupted. You might want to look here to get a replacement:

http://www.badflash.com/

[bhder]

All is well:) able to entry bios and load fail save bios ...finally
got to command prompt:cool:
reboot a few time bios seem to be working right..
plugged in hard drive every thing is still a ok
thanks for all the help::cool:
bh

[Budfred]

Congratulations!!

Now:

Please let us know what you did that seems to have fixed the problem. We have no way of knowing what to suggest to the next person with a similar problem if we don't know how this one was fixed.

[bhder]

:( learned that fail safe setting disabled usb controller
now I can't connect to internet[usb adapter]
still have problems in bios sometimes it just locksup with 3 key moves and I have to reset and try again
maybe I should flash bios???
any ideals
yes everything is back in case:confused:

[Budfred]

Flashing the BIOS is an option, but the USB may be more of a Windoze problem. I am not sure I can follow your description of the problem well enough to sort it out, but someone else might...

[Whyzman]

Has this system worked before? Back to classics question regarding whether you did anything to the system...if it was working??

Problems that lock up during POST would not have anything to do with an operating system...but they definitely could have something to do with hardware conflicts.

Are we talking about the same things here? BIOS is just the place where you are making your changes or setting defaults...POST is when you are attempting to boot up the system.

Are you getting freeze ups during POST or just attempting to make changes in the BIOS???

[anil]

Iam getting the same problem,my pc is not continuing and even not allowing to do bios setup after the message,CMOS checksum error --defaults added.Just it is halted there only.

What is the solution to this problem....?

Can any one help me please?

[Budfred]

anil, Welcome to http://www.pcguide.com/ubb/pcgubb.gif

Have you already tried the suggestions noted in this thread? If you have and you are still having problems, you may have a bad BIOS and the only option is to get the chip reprogrammed or replaced. The link I posted a few posts back is for a place that will do that.

Before you do anything more, have you already reset the BIOS??? If you haven't, do that first. This is either by moving the jumper to Clear CMOS or by removing the button battery on the motherboard for at least 30 minutes (24 hours is better) and then replacing it. You could also just try a new battery and see if that does it...

[bhder]

I thought 1. post is first after memory count.2.. bios setting take place..3..boot window loads :confused:
I haven't changed hardware and have loaded software in weeks only windows updates
Usb worked great...but now that I have changed bios to fail safe setting usb controller is disable
Any changes I make in bios need to be performed quickly or it will freeze ...and I will have to reset and start again
I still don't know if bios are corupted...abit flashed bios January with ver.#A9
I have flashed bios on one of my old pc but it seems like I 'm walk on eggs but the crap with changes in bios seems trashed

[mjc]

The memory check is part of POST...Power On Self Test.

I have seen similar BIOS lockups occur when ECC memory was present in a non ECC motherboard, or when ECC was turned off with ECC memory installed.

[anil]

Dear budfred,

actually i got this problem when i tried to reset the cmos settings(because, i forgot bios password) through that jumper on motherboard.I positioned the jumper to clear settings.after repositioning it back when i booted my pc, it does some memory check and gave the error message,"CMOS checksum error default values loaded",and it halted there only, nothing is working. F1 to continue and del to settings also not working,it just hanged there only.

I tried lot of combinations, removed CMOS battery and replaced with the new one also, no results! I read in award bios error site that it is a correctable error..they also suggested that to replace with new battery,that is not working.....

what to do....?
:confused:

[Budfred]

anil,

Have you followed the suggestions in this thread? Since it is a similar problem, the approaches would also be similar. If you can't fix it, you can still replace it using the badflash link I posted earlier. It will cost some time and money, but cheaper than a new system.

[no-mbr]

I love the posts about how the system "just quit" and then the miraculous unrelated "cure" takes place and all the well placed advice is left in the toilet....

Somethin' smells.... and it ain't the BIOS.....

[anil]

Hi all,

The problem is solved..now. My pc is working fine.What happened is,when i tried to reset the settings to default values,in that settings "halt on errors" setting was enabled,after giving CMOS checksum error -- defaults loaded , it halted there only. At that time we need to do the setup by pressing DEL,but what happened is my keyboard was not functioning properly..i.e., some way it is not initialised through the bios.That's the reason pc is not responding to commands from keyboard.After replacing the keyboard it allowed me to enter setup...that's it....!:)

Thanks for the help,

Anil Kumar.G