HP

Hi there everyone, I have a HP XW9400 Workstation. Whenever I turn it on it has a fatal red light with a beep and turns off. The second time I turn it on it posts to BIOS but after a couple of seconds the system turns off with the red light constantly blinking with an interval of 2 to 5 seconds. I recently washed/cleaned the liquid cooler that covers the two AMD Opteron CPUS and I believe that's why this problem is happening. Could new thermal paste or replacement of the liquid cooler do the trick. I don't have much money to spend on a new cooler, a new cooler is worth more than the desktop itself. If a cheaper yet effective alternative will work then I will be happy. This model once again is the XW-9400 With 2x Opteron AMD, Liquid Cooling pipes and radiators that have been washed. Thanks and any tips will do
Thanks