Dell Precision M65 Locked
There is usually only one true way to clear this type of password...the only problem with some of these systems is the password is stored in a chip on the the motherboard and not in the RTC battery, but this may not be the case with this particular model. Below is the procedure for the "shorting" of the RTC battery leads.
If you have forgotten your BIOS or system password, there are no software tricks or magical gimmicks that will get the password cleared. Laptops are different in that they are designed to not work with “backdoors” etc. for security reasons. There is one true way that works most of the time and that is hardware.
The Cmos (RTC) battery that is mounted on the motherboard in most cases holds the key, if your motherboard has the battery that is connected to the motherboard by using a two wire socket that plugs into the MOBO, then here is the procedure.
On the motherboard where the battery plugs into, you will see two pins sticking straight up, these engage the plug on the battery side. These two pins have to be “shorted” and then the motherboard powered up for approx. 30 seconds, then power down the system and replace the Cmos battery and reboot. Only reboot with the AC adapter plugged in, not the main laptop battery. Your password problem should be cleared up. The best way to “short” the pins is get another cmos battery and cut the wires from the battery part, bare the ends and twist together, this will short the pins. Make sure you tape the connection good on the jumper you just made….don’t want to touch anything else with powered up bare wires. Good luck.
If the battery is the disc type and sits in a horizontal socket on the motherboard, then it is a little more difficult to perform but the theory is still good, the positive and negative have to be shorted and the same procedure done. In most cases, just removing the cmos battery does not work in laptops, this is because there is extra security needed because of their portability.
Jan 17, 2010 |
Dell Precision M65 Notebook