1. Sarrera
This manual provides detailed instructions for the installation, operation, and maintenance of your Montech AIR 903 MAX E-ATX Mid Tower Case. Please read this manual thoroughly before beginning assembly to ensure proper setup and safe usage. Retain this manual for future reference.

Figure 1.1: Montech AIR 903 MAX Mid Tower Case (Black)
2. Segurtasun informazioa
- Deskonektatu beti korronte-iturria hormako entxufetik edozein osagai instalatu edo kendu aurretik.
- Handle components with care to avoid damage from electrostatic discharge (ESD). Consider using an anti-static wrist strap.
- Keep small parts and screws away from children.
- Saihestu zorroa eguzki-argitan edo bero-iturrietatik gertu jartzea.
- Berotu gehiegizko tenperatura saihesteko, ziurtatu kaxa inguruan aireztapen egokia dagoela.
- Ez saiatu kaxa edo haren osagaiak aldatzen, horrek bermea baliogabetu eta segurtasun arriskuak sor ditzakeelako.
3. Paketearen edukia
Egiaztatu elementu guztiak paketean daudela:
- Montech AIR 903 MAX E-ATX Mid Tower Case
- 3 x 140mm ARGB PWM Fans (pre-installed in front)
- 1 x 140mm PWM Fan (pre-installed in rear)
- Accessory Box (containing screws, zip ties, and other small parts)
- Erabiltzailearen eskuliburua (dokumentu hau)
4. Produktua amaitu daview
The Montech AIR 903 MAX is an E-ATX mid-tower case designed for high airflow and extensive component compatibility. It features a mesh front panel for optimal ventilation and a tempered glass side panel to showcase your build.
Ezaugarri nagusiak:
- Aire-fluxu handiko diseinua: Metal front panel with 51% ventilation rate for superior thermal performance.
- Hautsaren iragazketa: Meticulously designed mesh front panel acts as a dust filter and is easily removable for cleaning.
- Aurrez instalatutako zaleak: Includes three 140mm ARGB PWM fans and one 140mm PWM fan for effective cooling and customizable lighting.
- Hozte-laguntza zabala: Supports up to 360mm AIO liquid coolers at both the front and top.
- Osagaien tartea: Accommodates CPU tower coolers up to 180mm in height and graphics cards up to 400mm in length and 190mm in width.
- Konektibitate modernoa: Features a front panel Type-C port.

4.1. irudia: Aurrealdea View with Mesh Panel and ARGB Fans

Figure 4.2: Tempered Glass Side Panel View
5. Konfigurazioa eta instalazioa
Before starting, ensure you have a clean, well-lit workspace and the necessary tools (e.g., screwdrivers, zip ties).
5.1 Alboko panelak kentzea
- Locate the captive thumb screws on the rear of the case for both the tempered glass side panel and the solid steel side panel.
- Askatu erpuruzko torlojuak.
- Carefully slide the panels backward and lift them off. Place the tempered glass panel on a soft, flat surface to prevent scratches or damage.
5.2 Plaka amaierako instalazioa
The AIR 903 MAX supports E-ATX, ATX, Micro ATX, and Mini ITX motherboards.
- Instalatu S/I babeskia kaxaren atzeko irekiduran.
- Align your motherboard with the pre-installed standoffs. Ensure the standoffs match your motherboard's form factor.
- Secure the motherboard with the appropriate screws provided in the accessory box.

Figure 5.1: Motherboard Compatibility Diagram
5.3 Txartel grafikoaren (GPU) instalazioa
The case supports graphics cards up to 400mm in length and 190mm in width.
- Remove the necessary expansion slot covers from the rear of the case. These are secured with thumb screws.
- Insert your graphics card into the appropriate PCIe slot on your motherboard.
- Secure the graphics card to the case using the thumb screws.
- Konektatu beharrezko PCIe elikatze-kableak zure elikatze-iturritik grafiko-txartelera.
5.4 Biltegiratze Unitatearen Instalazioa (HDD/SSD)
The case includes an HDD cage in the power supply shroud area, which can be removed using thumb screws for easier access or more space.
- Locate the drive bays or mounting points for 2.5" SSDs and 3.5" HDDs.
- Mount your drives using the provided screws.
- Connect SATA data and power cables to your drives.
5.5 Energia hornitzeko unitatea (PSU) instalatzea
The PSU mounts at the rear bottom of the case.
- Sartu zure elikadura-iturria kaxaren atzealdeko konpartimentu izendatuan.
- Align the PSU with the screw holes and secure it with the provided screws.
- Connect the main ATX power cable, CPU power cable, and any other necessary power cables to your motherboard and components.
5.6 Fan and Cooling System Installation
The case supports 360mm AIO coolers at the front and top, and CPU tower coolers up to 180mm in height.
- AIO Liquid Coolers: Mount radiators and fans to the front or top fan mounts as per your AIO cooler's instructions.
- Additional Fans: If installing additional fans, ensure correct airflow direction (intake/exhaust).
- CPU Air Coolers: Install your CPU air cooler onto the motherboard before or after motherboard installation, depending on the cooler design.

Figure 5.2: Component Clearance Diagram
5.7 Kableen kudeaketa
Utilize the cable routing cutouts and velcro straps behind the motherboard tray to organize cables. This improves airflow and aesthetics.
- Route cables through the designated grommets and tie-down points.
- Use the included zip ties and pre-installed velcro straps to secure cables neatly.
- Ensure the SATA cable for the fan hub is connected to your PSU.
6. Funtzionamendua
6.1 Piztea
After all components are installed and cables are connected, replace the side panels. Connect your monitor, keyboard, mouse, and power cable to the PSU. Flip the PSU switch to the ON position and press the power button on the top I/O panel of the case.
6.2 ARGB haizagailuaren kontrola
The pre-installed ARGB fans can be controlled via the integrated LED/PWM controller or synchronized with your motherboard's ARGB software (if supported). Refer to your motherboard manual for ARGB header connection and software instructions.
- If using the case's controller, cycle through lighting effects using the dedicated button on the top I/O panel.
- If connecting to a motherboard, ensure the ARGB cable from the fan hub is connected to a compatible 3-pin 5V ARGB header on your motherboard.
7. Mantentzea
7.1 Hauts-iragazkiak garbitzea
The mesh front panel and magnetic top dust filter are designed to prevent dust accumulation. Regular cleaning is recommended to maintain optimal airflow.
- Aurrealdeko sare-panela: The front panel can be easily dismantled. Gently pull the bottom of the front panel to detach it from the case. Clean the mesh with a soft brush or compressed air.
- Top Magnetic Filter: Simply lift the magnetic filter from the top of the case and clean it with water or compressed air. Ensure it is completely dry before reattaching.
- Bottom PSU Filter: Slide out the filter located under the power supply shroud and clean it.

Figure 7.1: Removable Front Mesh Panel for Cleaning
7.2 Garbiketa orokorra
- Erabili biguna, damp cloth to wipe down exterior surfaces. Avoid abrasive cleaners.
- For interior cleaning, use compressed air to remove dust from components and internal surfaces.
8. Arazoak
8.1 Sistemak ez du pizten
- Ziurtatu elikatze-kablea ondo konektatuta dagoela bai elikatze-iturrira bai hormako entxufera.
- Verify the PSU switch is in the ON position.
- Check all internal power connections (24-pin ATX, 8-pin CPU, PCIe power, SATA power for fan hub).
- Confirm the front panel power button cable is correctly connected to the motherboard's front panel header.
8.2 Fans Not Spinning or RGB Not Working
- Ensure the fan hub's SATA power cable is connected to your PSU.
- If using motherboard ARGB control, verify the 3-pin 5V ARGB cable from the fan hub is connected to the correct header on your motherboard.
- If using the case's controller, press the RGB button on the top I/O panel to cycle through modes.
- Check fan connections to the fan hub.
8.3 Excessive Fan Noise
- Ensure all fan screws are tightened to prevent vibrations.
- Clean dust from fans and filters (refer to Section 7.1).
- If fans are connected to the motherboard, adjust fan curves in your motherboard's BIOS/UEFI or software to reduce fan speed at lower temperatures.
9. Zehaztapenak
| Ezaugarri | Zehaztapena |
|---|---|
| Marka | Montech |
| Ereduaren izena | AIR 903 MAX BLACK |
| Kasu mota | Mid dorrea |
| Plaka amaren bateragarritasuna | Extended ATX, Mini ITX, Micro ATX, ATX |
| Materiala | Tempered Glass, Metal |
| Kolorea | Beltza |
| Produktuaren neurriak (LxWxH) | 18.82 x 9.05 x 19.41 hazbete (47.8 x 22.99 x 49.3 cm) |
| Elementuaren pisua | 20.3 libra (9.21 kg) |
| Aurrez instalatutako zaleak | 3x 140mm ARGB PWM (Front), 1x 140mm PWM (Rear) |
| GPU sakea | Up to 400mm (Length), 190mm (Width) |
| CPU hozkailuaren altuera-tartea | Gehienez 180 mm |
| AIO Erradiadorearen euskarria | Up to 360mm (Front & Top) |
| Aurreko I / O Portuak | 2x USB 3.0, 2x USB 2.0, 1x USB Type-C, Audio In/Out |
10. Bermea eta Laguntza
Bermeari buruzko informazioa eta laguntza teknikoa lortzeko, jo Montech-en webgune ofizialera. webwebgunera edo jarri harremanetan zuzenean bezeroarentzako arreta-zerbitzura. Gorde erosketaren frogagiria berme-erreklamazioetarako.
Official Montech Webgunea: www.montechpc.com





