# Motherboard for Lenovo laptops, Lenovo OEM 5B21U33935, replacement mainboard

**URL:** https://aio.lv/en/product--lenovo-5b21u33935--12240761
**Data updated:** 2026-03-30 12:55 (EEST)
**Category:** Motherboards
**Manufacturer:** Lenovo
**Manufacturer code:** 5B21U33935
**EAN:** 5715328242128
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 172.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 142.97 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b21u33935--12240761

## 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

Replacement motherboard compatible with Lenovo laptops, OEM part number 5B21U33935. Designed as a direct mainboard replacement, it restores system functionality by supporting the original CPU, memory modules, connectors and onboard interfaces. Suitable for repairs and refurbishment of compatible Lenovo laptop models; use for recovering devices with motherboard faults.

## Long description

Replacement motherboard compatible with Lenovo laptops, designed as a direct mainboard replacement to restore system functionality. This Lenovo OEM mainboard supports the original CPU, memory modules, connectors and onboard interfaces used in the compatible laptop models. It is intended for repair and refurbishment tasks where the existing mainboard is faulty or damaged and a like-for-like replacement is required to return the device to working order.
Advantages
This replacement mainboard provides native compatibility with the original hardware layout and onboard connectors, ensuring proper fit and function without the need for extensive modifications. As an OEM-design component, it preserves support for existing CPU and memory configurations and maintains the laptop’s integrated ports and interfaces. Using a direct replacement board reduces repair time and simplifies diagnostics compared with non-original or generic alternatives.
Suitable for
 Repairing Lenovo laptops with a faulty or non-functional mainboard
 Refurbishment projects to restore used devices to working condition
 Technical diagnostics where swapping the mainboard isolates other component failures
 Service centers and technicians performing motherboard-level repairs
Key specifications
 Form factor and connector layout matching the original Lenovo laptop design
 Support for the original CPU socket or soldered processor configuration used in compatible models
 Memory module support compatible with the laptop’s original RAM type and slot arrangement
 Onboard interfaces including native USB, audio, display, network and storage connectors as per the original board
 Integrated power delivery circuitry compatible with the laptop’s existing DC-in and battery connections
How to use
Power down the laptop, disconnect power and remove the battery (if removable) before beginning. Follow the manufacturer’s service manual or disassembly guide to access the internal components, remove the existing mainboard and transfer any compatible modules such as RAM, storage drives, heat sink, and peripherals to the replacement board. Install the replacement mainboard in the chassis, reconnect all flex cables, connectors and cooling assembly, then reassemble the laptop. After reassembly, connect power and perform an initial power-on and POST check. Verify BIOS/UEFI settings and update firmware if required by the system.
Usage recommendations
Handle the mainboard with ESD precautions, use proper torque settings for screws and avoid forcing connectors. Use authorized service documentation for disassembly steps and ensure any firmware updates are obtained from official Lenovo sources. If uncertain about compatibility or installation, consult a professional technician.

## FAQ

### How much does the Lenovo motherboard 5B21U33935 cost, and is it available for purchase?

The price is 172.99 € (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

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