Compaq Presario S5000NX bios settings reset?

September 18, 2010 at 11:51:47
Specs: Windows xp home, 2.5ghz intel celeron / 128mbram/upgraded to 384mb ram

MY little sisters Compaq Presario S5000NX an the bios settings keep reseting when the computer is unplugged causing date/time and everying to go back to default messing everything up.

Anyone know if there is a jumper that stops this from happening? I remember the same thing happening on my Dell and it was a jumper pin that was taken out that caused the problem. Or hear of this problem on this computer

I have changed the motherboard bios battery with a few extras I have and still same results, just keep getting my bios settings reset back to default when unplugged and power is not given to it. Would like to fix this problem.

I am also trying to get windows on to the system but when its installing I keep getting errors that say file not bound and have to click try again before it will accept the file, once it is installed it will not boot into windows anyway, I had this problem lots times before caused by bad ram but I tested the ram and it works fine well no errors so I am thinking it is the hardrive but I would like to get the bios problem fixed before i swap out the hardrive and start trouble shooting everything else and redo the install as without the bios part fixed theres no point in moving on.
I would really like to fix this problem as its my sisters only computer and cant afford to build a new one right now.

Any sugestions on the bios problem or jumper question?
Thanks in advance for all your help and any answers you can provide on this system.

P.S. if you need anymore info please feel free to ask I will get it for you.

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September 18, 2010 at 11:53:07
Replace the motherboard battery.

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September 18, 2010 at 15:03:11
Or leave the computer plugged into an active outlet. The permanent solution is to replace the CMOS battery but the above solution will keep the settings until then.

Even when shut off the computer has some power going to parts of it. That is unless you shut down all power to it by means of a power strip or similar.

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September 19, 2010 at 16:15:17
Yes I know if it is kept plugged in the computer will keep its bios settings, but it gets moved around, also I have changed out the battery, it doesnt seem to be helping for some reason.

That is why I asked if the motherboard that is in this computer has some sort of jumper that if removed resets the bios if unplugged or something I had that problem before once I put the jumper back in the right place it went back to normal.

Could this be the case with this or is there no such jumper on this brand computer's motherboard?

Like I said i put in a couple different batteries and none will allow the bios to keep its settings. IDK its really wwierd, I thought maybe I put the battery in wrong so tried each one both ways.

Anyone know about the bios reset jumper when power is loss?
Thanks again guys

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Related Solutions

September 19, 2010 at 16:42:29
Be sure the polarity is correct (not upside down). Also make sure the contacts aren't bent away and not touching.

Are you saving when exiting the BIOS?

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September 20, 2010 at 15:15:26
Yes I am saving the settings when I leave because they stay until i unplug it to move it again. What do you mean by make the polarity is correct? Do you mean make sure the battery is in the right way? If so I actually tried the battery both ways to make sure, that is one thing I should watch for before pulling the battery out as it is not flat on the motherboard its one that sticks out and u slide the battery in a slot and it sticks out from the motherboard.
For example a laptops ram compared to a desktops ram , one sticks out the other when in correct place is kinda flat, as for the contacts I took the battery out and bent them inwards to make sure they were not bent out a bit from when I took the battery out to put a new one in, I just forgot to remember what was the battery was facing when I pulled it out.

There is actually only one time I had this same problem with a computer and I thought it was the battery or the battery connector was on a HP it was doing the same thing, it turned out someone moved a jumper on the motherboard which was causing the bios to reset when it was unplugged.

Is there any actual way to tell if a motherboard is getting power from the battery? and if so what would be the best way to do it to know for sure besides unplugging the power and seeing if the bios resets, could prob use a multi meter but how would I go about with the battery in it where would the best two places to test the battery/motherboard's bios actual getting the power from the battery?

If you do not understand something I wrote here please just let me know as I wrote it fast I am on my way out.

Thanks again guys

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September 20, 2010 at 15:30:47
Just replace the battery. $3 part.

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September 22, 2010 at 18:47:44
Got a multimeter? Check the CMOS battery voltage.

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