Where do i put a PNY 8GB microSD Memory Card in my dell optiplex 760 tower how can i put it in

You need a SD card adapter to insert a MicroSD card and be able to use it

The phone is probably expecting the photos/videos/etc to be in specific folders on the card. What phone do you have?

The laptop may not be able to read High Capacity MicroSD.

Dell Optiplex 760 Vista
Max CPU Intel Q9550
Max RAM 8GB RAM
Largest HDD Shipped 1TB (Will likely Support 2TB)

Optiplex GX260
Max Intel Northwood 2.53 GHz - 533
Max RAM 2GB
Largest HDD Shipped was 200GB (Will likely support 500GB)

Dell Dimension XPS D300
Max CPU 333 Pentium II
Max RAM 384MB
Largest HDD Shipped 16GB (Will likely Support up to 80GB)

Dell Dimension XPS M
Max CPU 166S
Max RAM 64 MB
Largest HDD Shipped 4.3 GB (Max HDD likely 20GB)

CHECK YOUR PCI SLOTS ON THE BACK OF YOUR PC

It looks as if you must go to this website for the bonus. It requires that you fill in the information regarding your purchse.
http://nationalgeographic.pny.com/
I hope this helps.

It looks like this is where you access it.
http://nationalgeographic.pny.com/
You need to fill out the information about your purchase on this site.
See if this helps to resolve your problem.

is the card unloced

Make sure that the microSD card is formatted. You may reformat the memory card using your phone and then try saving some music.

If that will not do any help, try using another microSD card to see if the card is defective.

Have a great day!

If the phone failed to format the SD card, try to format it through your computer. Connect the phone through the USB port located at the back of the tower. You'll be prompted that the PC detected 2 USB drives, the phone and the SD card. You will see it by going to My Computer folder. From there, right click the Letter drive represents the SD drive then select Format. I hope this helps.