Keyboard Function Keys Not Working

[David171]

When the desktop turns on, the monitor detects the system and shows some messages.  I believe a few important messages relevant to the issue are shown below.

• Award Medallion BIOS v6.0, An Energy Star Ally
• Intel (R) Pentinum (R) 4 1600 MHz Processor
• CMOS Checksum error - Default loaded
• Press F2 to continue, F1 to enter SETUP
• 01/20/2002-SiS650-P4S-LA

I tried two different keyboards (one with USB connection) and pressed F1, F2, and other function keys on either keyboard, but none of these keys worked so I was unable to continue. 

I would like to retrieve some old files from the old computer.  Your help would be much appreciated.

[mdklassen · Accepted solution]

> Intel (R) Pentinum (R) 4 1600 MHz Processor

> CMOS Checksum error - Default loaded

> Press F2 to continue, F1 to enter SETUP

There is a "button-battery" on the motherboard, about the size of a USA $0.25 coin, that needs to be replaced.

Power-off the computer, and disconnect the AC power cord.

Remove the battery, noting that there is etched lettering on the top of it, and replace it -- costs less than $1 US.

Connect a "legacy" PS/2 keyboard -- the one with a round connector, possibly coloured PURPLE.

Reconnect the AC power cord.

Power-on the computer.

Press F1 to enter SETUP.

Reset the current date/time on your computer.

Save/Exit from SETUP.

Tell us how it goes.