TAILIEUCHUNG - The PC Doctor's Fix-it-Yourself Guide- P22

The PC Doctor's Fix-it-Yourself Guide- P22: A technical director for a UK-based computer company who teaches such courses as Caring for Your PC has developed prescriptions for treating sick PCs. Arguing the benefits of fixing it yourself rather than relying on experts, his mission is to empower users with trouble- shooting and safe repair skills. | CHAPTERS Motherboard RAM CPU and BIOS 189 Phoenix Beep Code Description 4-2-3 Check the keyboard. If the keyboard is connected and working suspect the motherboard. 4-2-4 Bad expansion card remove them one by one to find the faulty card. Replace the defective card. If no card seems defective replace the motherboard. 4-3-1 Motherboard problem replace. 4-3-2 Motherboard problem replace. 4-3-3 Motherboard problem replace. 4-3-4 This is a system clock problem. The system battery may need replacing. If that doesn t work the power supply may need replacing. If this still doesn t help the motherboard may need replacing. 4-4-1 Serial port problems if these are on the motherboard you will either have to replace the motherboard or add ports. If you add ports you will need to disable the onboard ports using the BIOS screen. 4-4-2 Parallel port problems if these are on the motherboard you will either have to replace the motherboard or add ports and disable the onboard ones using the BIOS screen. 4-4-3 Math coprocessor problem replace. Accessing the BIOS The BIOS settings are accessible by the user it s just that most users never notice the prompt When Does the BIOS Prompt Appear Start up your system and watch the screen. Keep a close eye on it and try not to blink. Keep watching What you are looking for is a prompt but because there are many different BIOS vendors there is no single description of what this prompt might look like. However the clues are there if you look for them. Generally a prompt will say something along the lines of Press F2 to enter BIOS setup Press DEL to enter BIOS setup 190 The PC Doctor s Fix-Il-Yourself Guide The trick is to press the right key when prompted. You re not going to have a lot of time so it might take you a couple of tries before you get in. In fact to make things easier most new BIOS vendors have standardized on five possible keys for entering the BIOS Fl F2 F10 ESC DEL p FIX-IT-YOURSELF HOME REMEDY If you are unsure of what key to x - .

• Phần cứng
• sửa chữa máy tính
• sổ tay phần cứng
• MainBoard
• thiết bị máy tính
• thiết bị mạng
• lắp ráp máy tính
• Phần cứng máy tính
• lỗi máy tính
• hệ thống mạch máy tính
• điện máy tính
• Tài liệu máy tính