# Motherboard (FRU) Lenovo 5B21U27633 — replacement mainboard for compatible Lenovo systems

**URL:** https://aio.lv/en/product--lenovo-5b21u27633--12240624
**Data updated:** 2026-03-30 12:55 (EEST)
**Category:** Motherboards
**Manufacturer:** Lenovo
**Manufacturer code:** 5B21U27633
**EAN:** 5715328243507
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 288.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 238.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b21u27633--12240624

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Lenovo FRU motherboard 5B21U27633 is a factory replacement mainboard designed for compatible Lenovo desktops or workstations. Supplied as a Field Replaceable Unit (FRU), it restores system functionality by replacing a faulty or damaged mainboard. Use cases include repairs, refurbishment, and maintenance of Lenovo systems that accept this specific FRU part number.

## Long description

Lenovo FRU motherboard 5B21U27633 is a factory replacement mainboard designed to restore functionality in compatible Lenovo desktops and workstations. Supplied as a Field Replaceable Unit (FRU), this replacement mainboard provides the same form factor and connector layout required by systems that accept this part. The board is intended for repair, refurbishment, or preventive maintenance where replacing a failed or damaged mainboard is needed to return the system to working condition.
Advantages
This FRU mainboard maintains original equipment manufacturer compatibility and preserves system configuration without requiring major modifications. It offers secure mounting points, standard connectors for power, storage and expansion, and is produced to the factory specification to ensure fit and electrical compatibility with supported Lenovo systems. Using a factory replacement mainboard helps reduce downtime, avoids compatibility issues common with non‑OEM parts, and supports warranty or service requirements when installed by qualified personnel.
Suitable for
Repairing Lenovo desktops or workstations that exhibit motherboard failure symptoms such as no power, POST errors, or unstable operation.
Refurbishing corporate or institutional Lenovo systems to original factory specification.
Field service and on‑site maintenance by IT technicians replacing defective mainboards.
Key specifications
Form factor and mounting compatible with specific Lenovo desktop/workstation chassis.
Connector set for CPU, memory modules, power supply, storage interfaces and accessory headers as per factory design.
Designed to match original electrical and layout specifications for supported Lenovo systems.
How to use
Power down the system, disconnect all cables and follow standard electrostatic discharge (ESD) precautions before beginning replacement. Remove the chassis cover and disconnect internal cables and expansion cards as needed to access the existing mainboard. Unscrew mounting points and carefully lift out the faulty board. Install the replacement mainboard by aligning mounting holes and connector positions, secure with screws, reconnect cables, memory modules, CPU cooler and any expansion cards. Reassemble the chassis, reconnect external cables, and power on the system to verify successful POST and device recognition. If the system fails to boot, recheck connectors and seating of components.
Usage recommendations
Use this factory replacement mainboard in compatible Lenovo systems only; verify chassis and component compatibility before purchase. Have a qualified technician perform the replacement if you are not experienced with internal PC repairs. After installation, run hardware diagnostics and update system firmware or drivers as needed to ensure stable operation.

## FAQ

### How much does the Lenovo motherboard FRU 5B21U27633 cost, and is it available for purchase?

The price is 288.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12240624/68120237_large.webp