Question about HP Compaq dc5100 Small Form Factor PC Desktop
Some, but not all, motherboard manufacturers provide a set of three jumpers on their motherboards that provide you with the ability to clear the Bios/CMOS settings, thereby allowing them to be reset. For the most part this is used when the Bios/CMOS data becomes scrambled and you need to clear the Bios/CMOS in order to return the computer to a functional state. This same procedure, however, can be used to clear passwords from the Bios/CMOS setup. Typically a jumper will be found across pins #1 and #2 as the default position, and by shutting the computer down, unplugging the power cord and then moving the jumper so that it is across pins #2 and #3 will clear the Bios/CMOS settings.
Here's an example of a Supermicro PIIISEA motherboard.
As you can see from the picture, we have added two small red arrows. The arrow to the left denotes the location of the "Clear CMOS" jumpers, while the red arrow to the right denotes the location of the CMOS battery.
Here are the procedures if the jumpers are present on the motherboard:
The procedures for clearing a Bios/CMOS without jumpers is essentially the same as those given above when they are present, it just takes a little more effort.
Posted on May 29, 2010
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Posted on Jan 02, 2017
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