Why Doesn't My Xbox 360 Slim Beep on Startup? It's Normal for Later Revisions

This is normal for later manufacturing revisions.

The Revision Difference

• "Valhalla" / "Corona" Motherboards (Late 2010 – 2013): Removed the piezoelectric buzzer to cut cost and power draw. No startup beep, no disc-eject beep, no error beeps (Red Ring uses LED only).
• "Trinity" / Early "Slim" (Mid 2010): Have the buzzer. One short beep = POST OK.

How to Identify Your Revision

1. Flip console over.
2. Read the **Model Number** on the white sticker (e.g., 1439, 1471, 1558).
3. Cross-reference: iFixit Xbox 360 Slim Models.
4. Or check **Manufacture Date**: After Oct 2010 → likely silent.

When to Worry

If the console **shows no green light at all**, or the light turns **red immediately**, or you get **no video output**—that's a hardware fault (GPU/HANA/CPU solder, PSU, HDMI retimer). Silence alone is not a symptom.

Enjoy the quiet startup!