Have a strange error which happens very rare. Perhaps 2times a week but still…
Anyway sometimes when I POWER UP the machine the bios gets cleared and restored to default settings. This is very strange and quite annoying because I have to set all of bios options back to my desired rate. This has started happening a month ago and with no apparent reason since I haven’t changed any hardware or BIOS settings…
This is no biggy but is still quite annoying so does anyone know why?
Ps. I thing this could be a result of weak battery? But that would be very strange since this board is only 10months old.

[Vampyromaniac]

Unfortunately, this is a known problem with the K7S5A. With some people it never happens, and some people have it every day. It happens with me every few months or so. There were some suggestions posted a while ago for K7S5A's, and I guess #1 applies the most here:

Originally posted by Chaps
I purchased and installed 3 of these boards-built three systems. I read the reviews before deciding to go with ECS, and believed that the board would be a good choice. Everything was fine until the third system- I had a number of problems. Had symptoms-seemed to act like an over clocked processor etc. I decided to thoroughly test out everything and have found the following.
1) Make sure the CMOS battery is putting out 3+ volts and make sure the battery makes a good connection in the holder.
2) Make sure that the power supply is AMD rated and has approx. 25-28 amp load carry rating @ 3.3 volts.
3) Make sure that the Mother board is grounded only at the points where the screws do not touch any circuits. I used three screw holes only and plastic stands every where else.
4) Make sure that the processor is properly seated and the heatsink is properly sized for the processor and use good thermal paste.
5) Make sure that the memory used is rated, or recommended for the board. Any old pc100/pc133 sdram memory will not always work properly and will cause erratic operation- page faults, blue screens etc.
6) Make sure that you have sufficient case cooling to keep from overheating the board.
7) Make sure that you use a new or clean formatted harddrive when installing the operating system. It is iffy trying to upgrade off an existing operating system installation.
8) Make sure, or be careful about the bios settings. If your settings are not right the system may not boot, or cause other errors.


By following the above listed suggestions I have been able to correct 100% of what was thought to be problems related to the motherboard. It is always possible to get a bad product, but this new system as built now in many ways out performs the other systems that I built with this board.

Other than that, I dunno. Maybe someone else has an answer.

[The_Neon_Cowboy]

look a the the bios battery most are made by sony.... or like duracell etc.... take the battery around (sugest radio shack or drug stores micht have it) a buy thex exat same one!!!! must have same nubers!! does not have to be the same manufacturer try it and see if you issues go away.... its worth a shot....


option 2 check for a bios update.. if available update bios

Already checking OCWORKBENCH theres plenty of info on this subject. It seems this is a common error for K7S5A mainborad