Category Archives: PC hardware

Find The Model Number & Serial Number On An HP Pavilion g6 Laptop

If you have an HP Pavilion g6 laptop, it is not immediately obvious how to find the model number and serial number, since they are not visible anywhere on the exterior of the chassis. Additionally, the fact that you have a “Pavilion g6” laptop will not help, since that particular model has many sub-models with their own numbers, and to download the correct software of HP’s site you will need the precise model number.

Fortunately, the model number & serial number are easy to find. Power off your laptop, unplug it, and remove the battery using the sliding lever at the bottom of the case. The serial number & laptop are on a sticker beneath the battery.

Additionally, if your computer is powered on, you can find your serial number by going to the Command Prompt and typing this command:

wmic bios get serialnumber

Command Prompt will then display your system’s serial number.

-JM

How To Reset The BIOS Password On A Dell Optiplex 755 Desktop PC

From time to time, you may have the need to reset the BIOS password on a Dell Optiplex 755. You may have forgotten the password. Or perhaps the person who entered the password forgot it, moved to a different job, or died. Or even worse, maybe some obnoxious prankster decided to set a password and not tell anyone.

Fortunately, it’s easy to purge the password. It just takes moving a jumper on the motherboard. Here’s how:

-Shut down your computer and unplug. For reasons that ought to be obvious, rooting around inside the computer while the power is on is a really bad idea, as opening up a powered on and plugged-in computer carries a risk of electrocution.

-Open up the case, and making sure to ground yourself, look at the motherboard. The jumper controlling the password will be labeled PSWD, and is usually blue. Gently remove the jumper.

-Plug in the computer and power it on again. You should get a message saying “password removed”.

-Power the computer off, unplug it, and restore the jumper to its original position.

-Turn the computer back on and hit F2 to access the BIOS. The password should be gone.

-JM

ADDITIONAL READING:

The Ubuntu Beginner’s Guide

The Ubuntu Desktop Beginner’s Guide