SYSTEMTREFF بنيادي گیمنگ پي سي هدايتون

Based on the behavior of the Systemtreff Equinox-Air ST-502 case, the differences you are seeing between the two systems are likely related to how the internal LED controller or the front panel connectors are plugged in.

• Blinking LED next to the LED button: This light is typically the HDD سرگرمي LED. If it is blinking constantly on one system but not the other, it usually indicates disk activity on that specific PC. However, if it is blinking in a rhythmic pattern unrelated to disk usage, it may have been accidentally connected to the wrong header on the motherboard (such as a power LED header or a specific controller feedback pin).
• Unable to turn off LEDs: Most Systemtreff cases use an integrated LED controller. To turn the lights off, you usually need to press and hold the LED button for 3-5 seconds. If this works on one PC but not the other, check the following:
  • Ensure the "LED" button cable from the front panel is securely connected to the "SW" or "Reset" pins on the internal RGB/Fan controller hub.
  • If the button only cycles through colors but never turns off, the controller may be in 'Motherboard Sync' mode or the long-press function is not being recognized.

Since you have two identical systems, we recommend opening the side panels and comparing the wiring of the small 2-pin cable coming from the "LED" button to the fan controller hub. It is likely that on the problematic system, this cable is either loose or connected to a different port than on the working system.