Fixing an HP zd7000 Laptop with No Video (In Vancouver)

Soldered the power jack.
Soldered the power jack.
Fans fully clogged with dust.
Fans fully clogged with dust.
After cleaned up.
After cleaned up.
System crashed at boot up.
System crashed at boot up.
Windows loaded successfully after replacing both 512 MB RAMs.
Windows loaded successfully after replacing both 512 MB RAMs.

I traded in this HP zd7000 laptop on 14 April 2013. The owner had another zd7000 laptop with cracked screen that he bought and intended to swap the motherboard over but did not know how to do it. He provided both to trade with a Sony VAIO working laptop.

At home, I checked both zd7000 laptops. Both could be powered on but with no video. I took them apart and swapped the motherboard over. While doing it, I cleaned up the laptop fans which were clogged with dust inside.

I tried to power on again but it had no power light. I checked the power jack on the motherboard. There was rust around the leg in the middle. It should be disconnected during the swapping. I scratched away the rust around the leg and soldered it again. The power on was successful.

The laptop started to have video occassionally. When it had video, it crashed while Windows XP was loading. I suspected that it was due to bad hard drive. I tried a boot-up CD. The DVD/CD drive was faulty. I swapped the DVD/CD drive over. It still crashed. If not due to hard drive, it should be the RAMs. I swapped the RAMs over one by one and found that both RAMs were faulty. With both RAMs replaced, Windows XP is loaded successfully.

The owner mentioned to me that he would buy it back if it works because he likes Windows XP and the TV media features of this laptop. I sent the new photos of this laptop after fixing to him who replied that he would come to buy it back. It did not happen. In July 2013, it was picked up by a teenager for running XP game.

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