I have a Dell Latitude d620 that won't power up. When I push the power botton the Number Lock button lights up solid and the Cap Lock and Scroll lock lights blink for about 30 seconds together and then all goes off. I have completly taken the computer apart and reseated everything correctly using manual to no avail.

please use the following small secret. Disconnect the power adapter from the laptop.
2) Dissasembly the batteries from the laptop.
3) press the power button in ON with the adapter+battery disconnected from the computer. and maintain press the power button by EXACTLY 60 seconds.This liberate the ESD.
4) Try again.
God bless you

Your power supply is probably dying. You can bring it in to a pc shop and have them test it or you can test it yourself with a psu tester like one of these:
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=-1&IsNodeId=1&Description=psu%20tester&bop=And&Order=REVIEWS&PageSize=20

there should be a strip of plastic above the keyboard that has power button and it you should be able to take it off to get to the hinges.

Two possible causes for flashing Amber battery light.
1) Your battery won't charge and needs to be replaced.
2) Your charging circuit for the battery is defective and then your motherboard of laptop will need to be replaced.

When the caps lock light flashes, it means there's a problem with the memory. Try re-seating the memory by taking it out and putting it back in.

Go to novatecdirect.com they can help, i unlocked my dell latitude using their unlock services, they have master passwords for that problem.
and it works for me all the time

Hi,

Please go through the below step, you can able to do it.

1) Shut down the Dell Latitude D620 if it's currently powered on. Click "Start" in the left-hand corner of the screen to access Windows' shut down options. Alternatively, press and hold the Latitude's power button, located on the top edge of the laptop's keyboard.

2) Turn on the computer by pressing the laptop's power button.

3) Press and hold "F8" on the top of the laptop's keyboard immediately after turning the computer on. If the Windows logo appears on the screen, you're too late and must repeat Steps 1 through 3 again. If you pressed it in time, a list of text options will appear on the screen.

4) Use your keyboard's arrow keys to scroll down to "Repair Your Computer." Push the "Enter" key on your keyboard.

5) Choose a language from the next list and select "Next." If you've password-protected your laptop, you will be prompted to enter your user name and password at this time.

6) Press "Dell Factory Image Restore." A new window will appear. Click "Next" and select the option for reformatting the hard drive and restoring the factory condition of the laptop.

1.Remove the battery and insert the A/C main adaptor,then ON the Laptop.
2.Remove and Insert the RAM again properly(Cheak with another Good conditioned RAM)
3.Remove the CMOS battery and then repace it again.
4.Remove all drives like hard disc,dvd drive and etc.then ON the Laptop.
All the Best....

i cant if my mute botton it all was say mute of and i cant hear anything

remove the laptop and, bios battery wait 10 minutes then reconnect the bios battery and repower with the power supply