i agree not to sue.

Ok, now the real stuff. Precautions, stuff you should do etc....
1. Ground yourself to prevent frying stuff from static electricity.
2. Do this on a big clean table, preferably on a grounded mat.
3. Don't force anything, because you *will* break things that way.
Good Luck!!

Any questions or **corrections or **comments, contact me through e-mail.

You may also want to visit the following excellent web sites for Sony 505's.

Emanuel Brown's 505 web page:
http://home.att.net/~epbrown01/sony505.html

Chad Kudzu's 505 web page:
http://www.pbe.com/Kudzu/Laptop/

Adding Memory.

I'll start out with adding memory to the Z505S/Z505SX. The memory slot is right under the keyboard below the keys U, I, O, 7, 8, and 9.

1. Remove the battery.
2. Unscrew the 5 screws, denoted with arrow and a dot, from the bottom holding the keyboard.
3. Flip up the keyboard along the function keys.
4. Holding the keyboard in that position and slide it toward the screen for about 0.25 inch until the tabs along the space bar clears.
5. After the tabs clears the back, lift the whole keyboard up for about 0.5 inch and fold back the keyboard along the space bar and lay it down. DO NOT pull/move the keyboard hard or you'll break the cable below it.
6. Put the memory module into the single available slot as follow Pic1, Pic2, Pic3
7. Put the keyboard back into the tabs and tighten the screws back.
8. Turn it on, check the memory, run phdisk etc...

Accessing the Hard Drive.

To access the harddisk or anyting internal, look at the pictures below.

1. Remove the battery.
2. Remove 5 plastic cover pieces in the direction of arrows as follow. Item 1, Item 2, Item 3, Item 4, Item 5. I use a tweezer from Swiss Army knife to remove item 2 & 5. ******I HAVE ITEM 1 AND 4 REVERSED IN THE PICTURES. ****** I'll fix the picture later...
3. Remove all 12 screws from the bottom.
4. Remove the keyboard and remember to disconnect the keyboard cable.
5. Remove 2 screws next to the Left and Right speakers.
6. Disconnect the speaker cables.
7. Now you're ready to remove the top casing. First seperate the top and bottom of the case by about 0.25 inches. VERY CAREFUL when seperating the case to the right of touch pad area. The hard disk is below your right wrist pad and the liner holding the hard disk will stick to the top of the case. But there are two screw holding the disk to the bottom of the case, so seperate the top and bottom * very slowly * in that area or you will bend the bracket or crack the bottom case or break the screw post.
8. After you clear the hard disk, you have to disconnect the touch pad cable. Do not lift the top case more than 1 to 2 inches before disconnecting the cable.
9. Now remove 2 screws that are holding the hard disk to the bottom of the case.
10. Disconnect the harddisk cable.
11. Now you can lift up the harddisk and do whatever you need to do to the drive.
12. Do everything reverse, check for any thing left over and viola, you are back to normal. Turn it on, check BIOS to see if it detect the hard disk and you're all set.