Question about Lenovo R61 T7300 Notebook
-check the power suply cable
-make sure the on/off button isn't damaged
-check the motherboard for any burn out chips
-make sure the currant is actully running thru all circuits
-check the parts that could die and cause this: processor unit, memory units (not the hdd), cables and connections
Posted on Feb 23, 2009
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Posted on Jan 02, 2017
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Jan 13, 2016 | Computers & Internet
Jan 03, 2013 | HEWLETT-PACKARD HP G72261US Notebook
The most common way that most of us know on how to reset or clear the BIOS password is to
physically remove the power from the computer by disconnecting the power plug and then
removing Cmos battery for 30 minutes from the motherboard.
You need to open the PC case, then look for a 20mm (3/4") shiny lithium button cell.
some motherboards cmos batteries are soldered in
Another way is to reset the clear CMOS jumper on the motherboard itself.
Both of the 2 methods mentioned works because most motherboards use a battery to sustain the
BIOS/CMOS settings for the motherboards PROM chip.
So by cutting off the battery power, the BIOS/CMOS settings will be erased.
cmos battery Under the keyboard or bottom of laptop -
If you are working on a laptop computer the location of the dipswitch
(almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
hope this helps
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