I am trying to upgrade my RAM from 8GB to 16GB. I desperately need to run with CS6 Master. I purchased compatible chips. When I installed them the Dell symbol came up and it said i was testing memory. After an hour, nothing. I restarted and hit F12, same thing. I restarted again and hit F2, same result. Do I need to replace the Motherboard? I was previously getting TPM errors on boot and would always hit F1 to continue.