Computer Diagnosis

Boot MGR Missing

The system can’t find the Boot Manager, preventing startup; reinstallation or formatting may be needed.

Startup Boot Device Error

BIOS can't find an operating system to boot; check if the correct drive (USB, ODD, or HDD) is selected.

NTLDR (OS Loader) Missing

Windows can’t find the boot loader file; commonly fixed by restoring or formatting the drive.

Error/Fail Format

A section of the hard drive is physically damaged and can’t store data properly; often leads to data loss or system crashes. (Change HDD)

Power Issues

1. Check power cables.

2. Possible faulty power supply issue (replace if needed)

3. Front panel issues may require replacement

Common Causes of Power Issues

1. Old Components

2. Human Error

3. Dust build-up

Cable Issues

Always ensure cables are plugged in and not damaged. (VGA, HDMI, and power cords)

BSOD (Blue Screen of Death)

Often indicates a faulty HDD.

Power Supply Unit

If faulty, the system won't turn on. This needs to be replaces if so.

Front Panel Connector

If the wires/buttons that connect the case’s power/reset to the motherboard does not work, it means it needs to be replaced.

Monitor Check

Test using a different monitor or check the current monitor's power. (Num Lock Test)

Num Lock Test

A test to check if the PC is responsive is to press the num lock on the keyboard to see if the light changes.

RAM

These errors prevent the system from displaying; try cleaning or reseating RAM.

Motherboard Static Issue

Damaged memory slots can cause system errors or failure to display. (Change MB)