JDC_SEC_RLS on g505s cannot maintain high uptime

[nobody43]

Summary
With JDC_SUS_RLS I was able to maintain uptime of 40 days (had to reboot), however, with JDC_SEC_RLS it's no more than 4 days (2 weeks testing). I could reproduce this behavior with self-compiled build (uptime no more than 8 days, 3 months testing). In bad cases uptime could be hours.

Symptoms
Any communication stops, display is lit and logon cursor stops blinking, fan is racing on top speed. With JDC_SEC_RLS fan speed is medium compared to low with JDC_SUS_RLS.

Action taken
Replaced power supply and RAM, used with UPS and without - no effect.

Motherboard
VALGC/GD LA-A091P, Rev : 1A, 2013-05-09