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HP 250 G4 15.6 LCD Notebook Intel Core i3 i3 4005U Dual core 2 Core 1.70 GHz 4 GB DDR3L SDRAM 500 GB HDD Windows 7 Professional 64 bit upgradable to Windows 8.1 Pro 1366 x 768 - Office Depot
HP 250 G4 - HOW TO OPEN & UPGRADE RAM & LOCATE CMOS/RTC/BIOS BATTERY - YouTube
HP 250 G4 / HP 255 G4 Disassembly and cleaning / thermal paste replacement + RAM upgrade - YouTube