Rampage V Does not POST, reboots every few seconds repair

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Rampage V Does not POST, reboots every few seconds repair
Device ROG Rampage V Extreme
Affects part(s) Main Board
Needs equipment multimeter, soldering iron, soldering station
Difficulty ◉◉◉◌ Hard
Type Soldering


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Problem description

Fixing an issue where the Rampage V does not POST and restarts every few seconds.

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Symptoms

  • Continuous reboots
  • No POST

Solution

Generally caused by lack of power on some rail. Check memory inductor (should be 1.25V), southbridge inductor (should be 1.05V).

One case had the culprit being a faulty RT8065 step-down converter near southbridge power phase - common problem on ASUS boards, example video