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Manuals
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Clevo Manuals
Laptop
W255HP
Service manual
Clevo W255HP Service Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Instructions for Care and Operation
Power Safety
Battery Precautions
System Startup
Table of Contents
Introduction
Overview
Specifications
External Locator - Top View with LCD Panel Open
External Locator - Front & Right Side Views
External Locator - Left Side & Rear View
External Locator - Bottom View
Mainboard Overview - Top (Key Parts)
Mainboard Overview - Bottom (Key Parts)
Mainboard Overview - Top (Connectors)
Mainboard Overview - Bottom (Connectors)
Disassembly
Overview
Maintenance Tools
Connections
Maintenance Precautions
Disassembly Steps
Removing the Battery
Removing the Hard Disk Drive
Removing the Optical (CD/DVD) Device
Removing the System Memory (RAM)
Removing and Installing a Processor
Removing the 3.75G Module
Removing the Wireless LAN Module
Removing the Keyboard
Part Lists
Part List Illustration Location
Top (W251HPQ,W251HNQ
Top (W255HP,W255HN
Top (W258HPQ,W258HNQ
Bottom
Sata Blu Ray Combo
DVD Dual
Lcd
Schematic Diagrams
System Block Diagram
Processor 1/7-DMI, FDI, PEG
Processor 2/7- CLK, MISC
Processor 3/7- (DDR3
Processor 4/7- Power
Processor 5/7- GFX PWR
Processor 6/7- GND
Processor 7/7- RSVD
Ddr3 So-Dimm_0
Ddr3 So-Dimm_1
Panel, Inverter, Crt
VGA PCI-E Interace
VGA Frame Buffer Interface
VGA Frame Buffer a
VGA Frame Buffer C
Vga I/O
VGA NVVDD Cecoupling
Pch 1/9- Rtc, Hda, Sata
Pch 2/9- Pcie, Smbus, Clk
Pch 3/9- DMI, Fdi, Pwrgd
Pch 4/9- Lvds, DDI, Crt
Pch 4/9- Oci, Usb, Rsvd
Pch 6/9- Gpio, Cpu
Pch 7/9- Pwr
Pch 8/9 Power
Pch 3/9- Grd
Wlan 3G Mini Pcie
CCD, Tpm, Multi con
Usb2.0, Usb3.0 Nec
Card Reader (JMC251 C)
Sata Odd, Led, Usb Charge
Hdmi, Rj45
Audio Codec Alc269
Kbc-Ite It8518E
5Vs, 3Vs, 3.3Vm, 1.5Vs Cpu
Vdd3, Vdd5
Power 0.85VS, 1.8VS, PEX VDD
Power 1.5V/1.05Vs/0.75V
Power Vcore1
Power Vcore2
Power VGA NVVDD
Ac In, Charger
Audio Board
Click Board
W251Hpq Power Sw Board
W270Hu Bridge Odd Board
W270Hu Power Sw Board
Power Diagram
Power on SEQ
Updating the FLASH ROM BIOS
To Update the FLASH ROM BIOS You Must
Download the BIOS
Unzip the Downloaded Files to a Bootable CD/DVD/ or USB Flash Drive
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Specifications
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W251HPQ/W251HPQ-C/W251HNQ/W251HNQ-C/W255HP/W255HN/W258HPQ/W258HPQ-C/W258HNQ
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