Disable onboard NIC

From what I can tell it would be HDD related. Have you test the HDD, is good? Do you have a Recovery disk of your OS? The machine has some miles on it ,right? I would start trying to load the disks (CD) that came with the machine, (I don't know your OS), If you don't have them, you can search for a windows repair disk online.

The NIC (network interface card) resembles a telephone jack only larger. It's where your ethernet cable goes. On some E-machines, the NIC is onboard meaning it's permanently attached to the motherboard. If this is the case, it's still possible to install a different NIC in 1 of the blank PCI slots. Remember to Disable the existing NIC in your device manager to avoid any possible conflict.

There are two ways to disable the onboard video:

First Option:
When the machine boots up, watch for instructions such as "Press to enter setup, bios, configuration, ect." Within the BIOS setup should be an option to disable to onboard video. This can usually be found within an Integrated Chipset Features section or a Video section depending on your BIOS. Be careful though, messing with settings that you don't understand can affect your computer negatively.

Second Option:
Assuming you're disabling the onboard video because you have installed a video card, access the device manager by right-clicking "My Computer" and click Manage. Select the Device Manager on the navigation pane on the left, then expand the Display Adapters section. Right-click on your onboard graphics adapter and then click Disable and you're done!

No you do not need to disable the onboard Network Interface Card. I would suggest to first start by inserting the new NIC card in a dif. Spot.
If you do not have any other spots to insert it, i would double check to make sure you have the correct driver for the correct operating system that you are running, If you know the model # of your nic card i could gladly get you the correct driver. Let me know if this helps. Thanks

Go to manufacturers web site
There you can find all the drivers you may need

A BIOS sum check error is usually due to a near flat BIOS battery.
Replace the BIOS battery and configure the BIOS Date & Time setting etc.

Shut the computer off at the beginning of the bootup process look for the function key or keyboard button to get into the bios setup. Press that button and look in the settings to disable the onboard network adaptor.

Hi, as long as both chips are slot 478 it should work fine, you wont need to change any bios or jumpers, just open up the computer, remove the heatsink, lift the lever and remove the CPU.
Insert new processor.
you will need thermal grease at this point, you need to apply a little amount onto the cpu, and make sure the old thermal paste is removed from the heatsink and then refit the heatsink & fan.
other option is fit the new cpu and purchase a new heatsink & fan, they usually come with the thermal grease, a new heatsink will cost about £10 or themal grease by itself will cost about 2-3 pounds.
just make sure you have new thermal paste before you remove the heatsink as the processor will get damaged otherwise..

Hope this helps

John

For user BIOS21 & julio1963,
How to enable you're (Add-in AGP video card) & disable the onboard, integrated S3 graphics UniChrome 2D/3D PCI graphics card.
Enter you're bios. Open you're user manual to page 3-13. Integrated Peripherals. Go to, Init display first. Set to AGP.
(Not to PCI). That is all you need to change. The MSI bios will than see you're add in AGP card & automatically disable the PCI S3 graphics, (Onboard) card.

Enjoy!
If I can help you further, feel free to post here.
Please, each user's vote this issue as a fix, if this helped you to get you're bios to see you're new AGP graphics cards.
Mike