I mentioned this last week, but I pulled the processor cards on my Quad late last week to repaste the CPUs. Since then, I have not been able to get it to boot. Reading the LEDs on the logic board, and following the service manual, it looks like everything more or less proceeds normally within the first few seconds of power-up. There are initially no lights on, and LED 7 flashes momentarily(as per the service manual, this is normal). A few seconds later, LED 2, indicating CPU overtemperature, will come on and stay on. I've pulled the cards again and verified that they are in solid contact with the water blocks then(again) cleaned and repasted both the blocks and the CPU dies. I have the hex-head spring loaded screws snug, so the contact between the blocks and the CPU should be good. The LCS has no leaks and I can hear the pump running when the system is powered on. All fans are also running. I do have the air deflector in place when all of this happens. Does anyone have any thoughts on what could be going on?