What should I inspect if only part of an Amici Pro ring lights up?

Spotting a ring that lights only partway round is a genuinely different situation from blades that never light at all - one is normal design, the other points at something worth checking. If your Amici Pro ring is only partly lit, the signal typically leads back to the addressable connection rather than the fan itself.

Quick Answer

A partly lit ring on the Amici Pro - sold only as a 3-pack, R399 including VAT, a price that is subject to change - usually points to the 5V 3-pin addressable connection rather than a fan fault, since a complete power failure would leave the whole ring dark rather than leaving part of it lit. Check the connector and chain position first.

🔌 Start with the connector

The 5V 3-pin connector at that specific fan is the most common cause of a partially interrupted signal. A partially seated plug can carry enough connection for some LEDs in the ring to receive signal while others further along do not, producing exactly the partial-lighting symptom worth investigating. Reseat it firmly and check whether the ring fills in completely.

Does chain position tell you anything useful?

Yes, quite often. Where multiple addressable fans run in a daisy-chain, a fault at one point frequently affects everything after it in the sequence, which means the connection immediately before the first dark section of the ring is usually the point worth checking closest. Working backward from where the darkness starts narrows down the likely fault location fast.

💻 Could it just be the software?

Worth ruling out before suspecting hardware at all - some RGB effects genuinely leave parts of a ring dark by design as part of how that particular effect animates. Check the selected lighting scheme in your motherboard's RGB application first; switching to a simple static colour temporarily is a quick way to confirm whether the partial darkness is an effect choice or an actual connection issue.

Does the fan still spin normally through this?

It should, and that is actually useful diagnostic information. The motor runs on a completely separate PWM connection, entirely unaffected by anything happening on the addressable lighting side - so a fan spinning correctly while the ring shows a fault confirms the issue sits specifically in the lighting chain, not anywhere in the fan's core function.

🔁 If reseating does not resolve it

Try moving that specific fan to a different position within the chain. This test shows clearly whether the fault follows the fan itself, or stays associated with that particular position in the daisy-chain - a useful distinction for narrowing down whether the fan or the header wiring is the actual source. A genuine lighting hardware failure discovered this way, within the covered period, falls under the 1 Year Local Warranty. Browse case accessories for replacement cabling if a connector itself turns out to be the culprit, and the case fans range for the full lineup.

Frequently Asked Questions

What does a partly lit ring usually suggest?

Usually an addressable signal issue rather than power failure, since a full power fault would leave the entire ring dark instead.

Where should I check first?

The 5V 3-pin connector at that fan, since a partially seated plug is the most common cause of an interrupted signal.

Does chain position help identify the fault?

Yes, a fault at one point in a chain often affects everything after it, pointing toward the connection before the first dark section.

Could a software effect cause this instead of a hardware fault?

Possibly - some effects leave parts of a ring dark by design, so checking the selected scheme is worth doing first.

Does the fan still spin normally if the ring has a fault?

It should, since the motor runs on a separate PWM connection entirely unaffected by anything on the lighting side.

Is a genuine ring fault covered under warranty?

Yes, a real lighting hardware failure within the covered year is a warranty matter, once connection causes have been ruled out.