Emachine W2047

From the new drive (when the operating system is installed plus updates etc), you should be able to access the data from the old drive.

Please post back if you have any more problems or questions.
If this information is useful, please mark as helpful. Thanks.

We would not be able to diagnose the extent of the damage from an online conversation. If it is worth it to you and your neighbor you could take it to a shop for diag, and estimate.
Did these PC's have any kind of surge protectors between them and elec outlet, and ISP connection?

(if he's out there reading this)
Dear Mark at Podunktown ISD,
IT'S NOT THE VIDEO CARD. THERE IS NO VIDEO CARD. RESEAT THE FRICKING RAM.
Hugs and kisses,
-that guy from the hardware vendor you kept dumping your tickets on.

Now, I have to qualify that, and y'all are probably wondering so I'll explain. Back when I was working for EVIL CHINESE CORPORATION X, headquartered inside the West Beltway in Houston, I was assigned to cover tickets at a tiny ISD in a little podunk town off the Gulf coast, just south of Dear Park. It was easy enough work, but the tickets were often quite stupid and, if they went through Mark, mislabelled. He kept insisted that there was an epidemic of video card malfunctions plaguing the ISD and that the hardware vendors needed to replace them. Yes, he said video card. No, there went any video cards. It was conceivable that it could have been errors in the on-board video, but it made me wonder why he wrote "bad video card" on the ticket in the first place. And it never was anything to do with the video. It was the RAM. We removed it, cleaned it, reseated it, and rebooted the PC. Miraculously, the non-existent but clearly dead video card sprang back to life.

on many Emachines when the power supply blows it can also take out the cpu and/or the motherboard.
A shop would be the quickest route.

however, the t6420's had a poorly designed case in which the MB supports are to large. After a period of time, I guess, due to vibration, the PS will go out and take the MB with it.

While assumptions make an A$$ out of U and Me, I would have to assume that this design defect is present in other eMachines of the same period.

If you replace the MB and PS, then you should either replace the case or else raise the MB off of the supports with nylon spacers.