RAM install problem

[Kaikoura]

I went to install my new RAM, I ordered two Kingston 1024MB PC2100 266KHZ Non-Ecc to replace the 512 MB RAM that is already in, TigerDirect checked it's compatibility and it matches the manual (supports DDR SDRAM PC2100 /PC1600).  The motherboard is a K7VTA3 Version 6. I grounded myself and removed the old RAM and installed 1 board first to see if it worked which it did and it registered the extra RAM. I then installed the other board and it would not reboot. The PC makes an audible long beep sound. I checked the seating of both boards and still could not get it to reboot. I replace the two new boards with the old original 512MB still nothing. A friend suggested to remove the battery and then replace and try again still nothing. Could anyone offer any suggestions ? Thank You, because I am stumped.

[quaxo]

Try cleaning the contacts. This can be done with a cotton swab and a tiny bit of alcohol. Use extreme care when doing so and allow sufficient time for it to completely and thoroughly dry.

[Kaikoura]

Thank you for the advice, I will try that next.

[patio]

How many RAM slots are in this machine and which ones are you using ? ?

[Kaikoura]

There are only two slots for the RAM Memory, the first slot on the left hand side had the original memory board in it.

[patio]

Here  is the link to your MBoard manual...
It's possible Tiger Direct was mistaken.

[Kaikoura]

The original RAM says 512 MB-DDR PC333, the RAM did actually work it was only when I went to install the other 1GB Stick did it not work.