Question Computer dead after changing watercooling liquid. No Post, no fans, only MOBO green light on.

helios411

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Apr 28, 2015
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My PC no longer turning on after changing watercooling coolant. I did the following:

  1. Disconnect everything.
  2. Emptied coolant, put PC on side etc to make sure it all coolant got out.
  3. Refilled coolant.
  4. Disconnected MB power connnection (I forgot to disconnect the CPU power connection)
  5. Jump PSU using the MB connection to run pump and circulate water.
  6. After watercooling system filled, I left the pump running on for an hour (using jumped PSU)
  7. Then reconnected everything. Computer not turn on.
  8. MB light still on.
  9. Jumping PSU still works and turns on pump and fan.
What could be the issue?
 

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