Boot block compatible ver.024 Please do not insert disc into cd-rom or floppy drive if you want to recovery with an usb device bad bios checksum.

try new cmos battery

it's not locksum ,its Check SUM or CRC errors.
what OP, are you running,? windows what. i guess.

the CMOS battery just died.
install a new one.
all puters this old do that, the battery is good for 7-10 years,
and all fail.
DO NOT FLASH your BIOS, fix the real problem first

when the battery dies, all our bios setting were lost
including boot device, and order
fix battery
then go into BIOS and put back boot order.

What happens when you turn the computer on?

If the bios is working enough to enable you to boot from a CD download the new bios from asus along with there AFUDOS.exe flash utility and make a bootable CD and copy both to it.

If the bios is completly none functional you should be getting this msg when you turn the computer on,
Boot Block Compatible Version Ver .010
Bad BIOS checksum. Starting BIOS Recovery
Checking for floppy . .
Floppy not found
Checking for CD rom . . .
CD not found
Checking for floppy . .
Floppy not found
Checking for CD rom . . .
CD not found

Repeat adinfinitum.
If this is the case you need download the most recent BIOS from compaq and either copy it to a bootable CD if you have this capability or buy a floppy drive for $5 and make a bootable floppy on a working computer and copy this BIOS file to it. Then rename the bios file to A8N32SLI.ROM.

You may not even need make the floppy bootable but I would just in case.

Stick the floppy in the drive turn the computer on and you will see

Boot Block Compatible Version Ver .010
Bad BIOS checksum. Starting BIOS Recovery
Checking for floppy . . .
Floppy found.
Reading file "A8N32SLI.ROM" . Completed.
Start Erasing...
Start programing . . ./
Please turn off your system and power on again to get system back.

and happy days will be here.

I have seen this be a CMOS battery many times. Also, you can try flashing the BIOS if you continue to have troubles after replacing the battery. You should be able to find that information on the motherboard manufacturer's website.

It sounds like you will have to make a Bootable Flash Drive with your Netbooks latest BIOS and a Flashing program (which ever ASUS uses, i'm not sure). Once you have that then you plug it in to the USB port and start the computer and follow the on-screen instructions. There are a lot of tutorials on the web on how to make a bootable flash drive for your BIOS.

iat the time of boot a message as follows is displayed
"boot block compatible version .005"
bad bios cheksum. starting bios recovery
checking for floppy. floppy not found
checking for cd rom. cd rom not found"
.. using asus motherboard

boot block compatible version ver 003
bad bios checksum, start recovery

is alone window seen in my computer

BOOT BLOCK COMPATIBLE VERSION VER .005
BAD BIOS CHECKSUM

CHECKING FOR CD ROM
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO CD-ROM FOUND
CHECKING FOR FLOPPY DISK
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO FLOPPY DISK FOUND

Does someone already fix this problem??????

First of all, try to reseat all the cables inside your computer just make sure there aren't any loose connections.

If that doesn't work you will have to reset your BIOS. (Follow the instructions in your motherboard manual.)

If even after resetting the BIOS the problem is not solved, you may have to replace your CMOS Battery.

you may have a flat cmos battery, but first try reseting the bios by the cmos reset terminals, refer to the manual