Laptop <em>Lenovo B590</em> (model <code>20206</code>): complete user manual

Laptop Lenovo B590 with index 20206 is a budget solution for office work and everyday tasks, released in the early 2010s. Despite its age, the model remains in demand due to its reliable design, upgradeability and ease of repair. This article will help you understand the technical nuances of the device, current problems and ways to solve them - from replacing thermal paste to flashing the BIOS.

Feature B590 20206 — hybrid architecture: the laptop combines elements of the business line ThinkPad (keyboard, case) and consumer series IdeaPad (design, multimedia capabilities). This makes it universal, but at the same time creates specific “diseases” that you should know about in advance. For example, overheating due to weak cooling system or Driver problems after reinstalling Windows.

In the article you will find:

• 🔍 Detailed technical specifications and comparison with analogues
• 🔧 Step-by-step instructions for disassembly, cleaning and upgrading
• ⚡ Solutions to typical problems (won’t turn on, slows down, no sound)
• 💾 Guide to BIOS update and system recovery
• 🛒 Tips for choosing spare parts and accessories (RAM, SSD, battery)

Specifications Lenovo B590 20206: what's under the hood

Laptop Lenovo B590 20206 built on a platform Intel third generation (Ivy Bridge) and offers balanced performance for its time. The basic package included a processor Intel Core i3-3110M (2 cores, 4 threads, 2.4 GHz), but there are modifications with Core i5-3230M and even Core i7-3632QM. Important: model number 20206 indicates a specific revision of the motherboard, which affects the compatibility of components.

Key parameters:

• 🖥️ Screen: 15.6" HD (1366×768) or HD+ (1600×900), matrix TN (viewing angles ~120°)
• 💾 Storage: HDD 2.5" SATA II/III (up to 1 TB), support mSATA for SSD (in some modifications)
• 🧠 RAM: 2 slots DDR3L-1600 (max. 16 GB, but up to 8 GB officially supported)
• 🎮 Video card: Intel HD Graphics 4000 or discrete NVIDIA GeForce GT 720M/740M (1–2 GB)
• 🔋 Battery: 6 cell battery 10.8V 48Wh (original art. L13M6P21)

Feature of the model - hybrid graphics (in versions with a discrete video card). This allows you to switch between integrated and discrete graphics via Lenovo Energy Management, but often causes driver problems after a clean Windows installation. Also worth noting lack of support NVMe - only mSATA or SATA III for SSD.

Important: Laptops with index 20206 have a reduced cooling system compared to models 20207/20208 - smaller radiator and one fan. This is critical when upgrading to Core i7 or installing an SSD without thermal pads.

Disassembly Lenovo B590 20206: step by step instructions with photos

Disassemble B590 simpler than modern ultrabooks, but there are some nuances. The main thing is remove the keyboard correctly, since it is secured with latches and one screw under the battery. Before you start disconnect the battery (even if the laptop is turned off) and prepare the tools: a Phillips screwdriver PH0, plastic spatula, tweezers.

Procedure:

1. Turn off the laptop, turn it over and remove the battery (upwards).
2. Unscrew the 11 screws on the back cover (one under the battery!). Screws of different lengths - remember the location.
3. Carefully pry the lid off with a plastic spatula, starting at the corner next to HDD.
4. Disconnect the keyboard cable (the connector under the black electrical tape) and remove it by pulling it up.

After removing the keyboard you will have access to:

• 🖥️ Motherboard (under the metal screen)
• 💿 DVD drive (attached with 2 screws)
• 💾 HDD/SSD (in a separate compartment with rubber shock absorbers)
• 🔋 Cooling system (radiator + fan, 4 screws)

Take a photo of the location of the screws|Disconnect the battery and power supply|Use an antistatic wrist strap|Label the screws in groups with a marker|Check for hidden latches-->

⚠️ Attention: When removing the cooling system don't pull the tubes - they are soldered to the motherboard and come off easily. If you plan to clean the fan, use alcohol and cotton swabs, not a vacuum cleaner (the blades may be damaged).

To replace thermal paste, it is recommended to use Arctic MX-4 or Noctua NT-H1. Apply a thin layer (~0.3 mm thick) to processor, chipset and video card (if any). After assembly, check the temperatures in HWMonitor - during idle time they should not exceed 50°C, under load - 85°C.

BIOS update: how to flash Lenovo B590 no risks

Updating BIOS on B590 20206 can solve problems with compatibility of new RAM, overheating or loading errors. However, the process is risky - if it fails, the laptop will turn into a “brick.” Latest official BIOS version - 5ECN95WW (from 2014), but there are unofficial modifications with support NVMe (via adapter).

Update methods:

• 💻 Via Windows: Download .exe-file from the site Lenovo and run as administrator. Close all programs and connect your laptop to the network.
• 💾 Via flash drive (recommended): Create a bootable USB with FreeDOS, copy the BIOS files (.fd or .rom) and flash it through the utility flash.bat.
• 🔧 Via programmer: If the BIOS is damaged, you will need CH341A and a soldering iron for flashing the chip.

⚠️ Attention: If after updating the laptop does not turn on or gives an error 0x000000F, try resetting the BIOS:

1. Disconnect the battery and power supply.
2. Remove the back cover and take out CMOS battery (for 30 seconds).
3. Close the contacts CLR_CMOS (next to the battery) with a screwdriver for 10 seconds.

Before updating, check the current BIOS version:

1. Click Win + R, enter msinfo32.
2. In the section System Information find the line BIOS version.

If the version is newer than on the website Lenovo, don't update - this could be custom firmware with patches. For modified BIOS (for example, with unlocked menu) use forums Bios-Mods.com or Win-Raid.

Typical faults and solutions

Lenovo B590 20206 - a reliable laptop, but with age, “diseases” characteristic of the model appear. Here are the most common problems and their solutions:

1. The laptop does not turn on (black screen, indicators are blinking)

Reasons:

• 🔋 The battery is discharged or swollen (check the voltage with a multimeter - it should be 11–12V).
• 💻 The power supply is faulty (check the output voltage - 19V).
• 🔌 RAM or video card contacts are oxidized (clean with an eraser).
• 💀 BIOS is damaged (requires flashing).

🔹 Diagnostics:

1. Disconnect the battery and connect the charger - if the indicator lights up, the problem is in the battery.
2. Remove one RAM module - if the laptop turns on, the memory is to blame.
3. Listen to the sounds: one long and two short beeps - video card malfunction.

2. Overheating and sudden shutdowns

Temperature B590 under load it often reaches 95–100°C, resulting in throttling or disconnection. Solutions:

• 🧹 Cleaning from dust (especially the radiator and fan).
• 🧴 Replacing thermal paste (original high after 3–5 years).
• 🔄 Installing thermal pads for chipset and video card (thickness 1–1.5 mm).
• ⚙️ Setting Energy Saver in BIOS (Power Management → Cooling Mode → Active).

⚠️ Attention: If the temperature does not drop after cleaning, check radiator condition - y B590 Heat pipes often peel off. In this case, only replacing the cooling system will help (original article number - DC02000JH00).

3. Touchpad or keyboard does not work

Most often to blame:

• 🔌 Disconnected cable (check after disassembly).
• 💻 Driver conflict (remove devices in Task Manager and reboot).
• 🔋 Faulty controller (requires motherboard replacement).

To reset drivers:

1. Clamp Win + X, select Device Manager.
2. Find Mice and other pointing devices, delete Synaptics PS/2 Port TouchPad.
3. Restart your laptop and the driver will be installed automatically.

Upgrade Lenovo B590 20206: what can be improved

Despite his age, B590 lends itself well to modernization. Main directions of upgrade:

1. Replacing HDD with SSD

The most noticeable improvement is the installation SSD SATA III (For example, Crucial MX500 or Samsung 870 EVO). Windows boot speed will increase from 40–60 seconds to 10–15 seconds. Important:

• 💾 Discs supported 2.5" SATA And mSATA (in some modifications).
• 🔧 For mSATA an adapter will be required if the bay is occupied Wi-Fi module.
• 💻 Clone the system from HDD to SSD using Macrium Reflect or Clonezilla.

2. Increase RAM

Officially supported until 8 GB (2x4 GB), but many users install successfully 16 GB (2x8 GB) DDR3L-1600. Recommended modules:

• 🏆 Crucial CT102464BF160B (8 GB, 1600 MHz, low profile)
• 💰 Kingston KVR16S11S8/8 (8 GB, 1600 MHz, compatible with B590)
• ⚠️ Avoid modules with voltage 1.5V - needed 1.35V (DDR3L).

⚠️ Attention: When installing 16 GB Windows may not boot - you will need update BIOS to the latest version or use Linux.

3. Battery replacement

Original battery L13M6P21 lasts ~3–4 years, after which the capacity drops to 20–30%. Alternatives:

• 🔋 Green Cell GC-L13M6P21 (4400 mAh, 100% compatible)
• 💰 Duracell DUR-L13M6P21 (high capacity, but more expensive)
• ⚠️ Do not take cheap Chinese batteries - they often swell.

After replacing the battery calibrate the controller:

1. Charge up to 100%.
2. Disconnect charging and discharge until 0% (until it turns off).
3. Repeat the cycle 2-3 times.

Selection of spare parts and accessories for Lenovo B590 20206

When purchasing components for B590 important to consider motherboard revision (index 20206 indicates a specific modification). Below are proven articles and compatible analogues.

🔹 Where to buy:

• 🛒 AliExpress - cheaper, but long wait (check reviews!).
• 🏬 Local service centers - more expensive, but with a guarantee.
• 🔧 Avito/Yula — used spare parts (risk of purchasing a faulty product).

Critical: When purchasing a matrix, check the type of backlight (LED or CCFL) - they are not interchangeable. B B590 20206 used LED, but in early revisions it could have been CCFL.

Alternative firmware and BIOS modifications

Official BIOS updates for B590 20206 They haven’t been released for a long time, but enthusiasts have created custom firmware with:

• 🔓 Unlocked menu Advanced (for overclocking and fine tuning).
• 💾 Support NVMe via adapter M.2 → mSATA.
• ⚡ Fixed bugs with fan control.

🔹 Where to download:

• Win-Raid Forum (section Lenovo BIOS Modding)
• Bios-Mods.com (search by model B590 20206)
• GitHub (repositories with patches for Ivy Bridge)

⚠️ Attention: Custom BIOS can:

• 🚫 Revoke the warranty (if it is still valid).
• 💥 Disable the laptop if the firmware is incorrect.
• 🔋 Increase power consumption (if overclocking is unlocked).

Before flashing:

1. Create a backup copy of the original BIOS (via FPTw64 or Flashrom).
2. Check the checksum (MD5) downloaded file.
3. Use uninterruptible power supply (when the lights are turned off, the laptop will become a “brick”).

FAQ: Frequently asked questions about Lenovo B590 20206

powercfg /batteryreport