Satellite L640 - Laptop TOSHIBA - Free user manual and instructions
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| Product Type | Laptop |
| Brand | Toshiba |
| Model | Satellite L640 |
| Processor | Intel Core i3-380M or i5-460M (2.53 GHz) |
| RAM | 4 GB DDR3 (expandable to 8 GB) |
| Storage | 320 GB or 500 GB 5400 RPM SATA HDD |
| Display | 14.0-inch HD (1366 x 768) LED-backlit |
| Graphics | Intel HD Graphics or ATI Mobility Radeon HD 5145 |
| Weight | 2.3 kg (5.1 lbs) |
| Dimensions (W x D x H) | 340 x 232 x 34 mm (13.4 x 9.1 x 1.3 in) |
| Battery | 6-cell Li-ion (48 Wh) |
| Power Supply | 19V DC, 3.42A (65W AC adapter) |
| Operating System | Windows 7 Home Premium (original) |
| Webcam | 1.3 MP |
| Optical Drive | DVD SuperMulti (±R double layer) |
| Connectivity | WiFi 802.11b/g/n, Ethernet 10/100/1000, Bluetooth 2.1+EDR |
| Ports | 3 x USB 2.0, 1 x HDMI, 1 x VGA, Headphone, Mic, SD card slot |
| Audio | Stereo speakers, DTS Premium Sound, built-in microphone |
| Keyboard | Full-size with numeric keypad |
| Touchpad | Multi-touch with scroll zone |
| Security | Kensington lock slot, TPM (v1.2) |
| Maintenance | Clean with a soft, dry cloth; do not use liquids; keep vents unobstructed |
| Spare Parts | Battery, AC adapter, keyboard, screen, hard drive, RAM modules |
| Repairability | User-replaceable battery, RAM, and hard drive; keyboard and optical drive replaceable with disassembly |
Frequently Asked Questions - Satellite L640 TOSHIBA
How do I upgrade the RAM on my Toshiba Satellite L640?
Turn off the laptop and disconnect all cables. Remove the battery. The RAM compartment is on the bottom of the laptop; unscrew the cover. Insert a compatible DDR3 SO-DIMM module (up to 4 GB per slot, max 8 GB total). Replace cover and battery.
What is the maximum RAM capacity for the Satellite L640?
The Toshiba Satellite L640 supports up to 8 GB of DDR3 RAM (two 4 GB modules). It uses 204-pin SO-DIMMs with a speed of 1066 MHz or 1333 MHz.
How do I perform a factory reset on my Satellite L640?
Turn off the laptop. Press and hold the 0 (zero) key on the keyboard while pressing the power button. When the screen appears, release the 0 key. Follow the on-screen instructions to restore to factory settings. This will erase all data.
What type of hard drive does the Satellite L640 use?
It uses a 2.5-inch SATA 3.0 Gb/s hard drive with a height of 9.5 mm. Common capacities are 320 GB or 500 GB at 5400 RPM. It can be upgraded to an SSD.
Why is my Satellite L640 overheating and how can I fix it?
Overheating can be caused by dust blocking the vents or a failing fan. Clean the vents with compressed air. Ensure the laptop is on a hard surface. If the fan is not spinning, it may need replacement. Do not block air intakes.
How do I replace the battery on the Satellite L640?
Turn off the laptop and unplug it. Slide the battery release latch(s) on the bottom. Hold the latch and gently pull the battery out. Insert a new 6-cell Li-ion battery (model PA3534U-1BRS) until it clicks. Charge fully before first use.
What is the battery life of the Satellite L640?
With the standard 6-cell 48 Wh battery, the battery life is approximately 3-4 hours under normal use (web browsing, word processing). Actual life varies by usage and settings.
Can I connect an external monitor to the Satellite L640?
Yes, the laptop has both HDMI and VGA ports. You can connect an external monitor or projector. Use the Fn+F5 key to toggle between display modes: internal only, external only, or extended desktop.
How do I clean the keyboard and touchpad?
Turn off the laptop and unplug it. Use a soft, lint-free cloth slightly dampened with water (not wet) to gently wipe the keyboard and touchpad. Do not use abrasive cleaners or liquids directly on the device.
Where can I download drivers for the Satellite L640?
Visit the Toshiba support website (now Dynabook). Enter your model number Satellite L640. You can download drivers for Windows 7, 8, and 10, as well as utilities and manuals. Always use the correct drivers for your OS.
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