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What do the beeps mean when I turn on the computer?

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What do the beeps mean when I turn on the computer?

Award BIOS:
1. No signals - the power supply unit (PSU) is faulty or is not connected to the motherboard.
Dust free.
Check the reliability of the mounting pad on the motherboard.
If it does not help, replacement or repair of power supply unit is required.
2. Continuous signal - power supply is faulty. See paragraph 1.
3. 1 short signal - no errors detected, the PC is healthy.
4. 1 short repeating signal - problems with power supply. See paragraph 1.
5. 1 long duplicate signal - failure
random access memory. Try to pull the RAM module out of the slot and insert it again. If not helped, replace.
6. 2 short beeps - minor errors detected.
Check the reliability of fastening loops and cables in the connectors of the motherboard. Set BIOS defaults (Load BIOS Defaults).
7. 3 long beeps - malfunction of the keyboard controller.
Check the integrity of the keyboard cable and the quality of the connections. Check the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
eight.1 long and 1 short beeps - a fault in the RAM. See clause 5.
9. 1 long and 2 short signals - video card malfunction.
It is recommended to pull out the video card and reinsert it. Check the integrity and quality of the monitor cable connection. If it does not help, replace the video card.
10. 1 long and 3 short beeps - keyboard failure. See clause 7.
11. 1 long and 9 short beeps - error while reading data from BIOS chip.
Requires rewrite (flashing) of the chip. If it doesn't help, replace the chip.
AMI BIOS:
1. No signals - the power supply unit (PSU) is faulty or is not connected to the motherboard.
Dust free. Check the reliability of the mounting pad on the motherboard. If it does not help, replacement or repair of power supply unit is required.
2. 1 short signal - no errors detected, the PC is OK.
3. 2 short beeps - a fault in the RAM.
Try to pull the RAM module out of the slot and insert it again. If not helped, replace.
4. 3 short signals - the error of the first 64 Kbytes of main memory. See paragraph 3.
5. 4 short beeps - the system timer is faulty.
Reboot the PC. If it does not help, you will need to repair or replace the motherboard.
65 short beeps - CPU malfunction.
Reboot the PC. If it does not help, a replacement processor will be required.
7. 6 short beeps - malfunction of the keyboard controller.
Check the integrity of the keyboard cable and tight connections. Check the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
8. 7 short signals - motherboard malfunction.
Reboot the PC. If it does not help, you will need to repair or replace the motherboard.
9. 8 short beeps - malfunction of the video card RAM.
Reboot the PC. If it does not help, replace the video card.
10. 9 short beeps - error while checking BIOS checksum.
Requires rewrite (flashing) of the chip. If it doesn't help, replace the chip.
11. 10 short beeps - it is impossible to write to CMOS-memory.
Zero the contents of the memory (to do this, turn off the PC, unplug the power cord from the outlet. Locate the switch next to the CMOS-memory battery, set it to Clear CMOS. Press — with the power cord off — the PC power button. Set the switch to its original position.If there is no switch on your motherboard, pull out the battery for half an hour). Set BIOS defaults (Load BIOS Defaults). If it doesn't help, replace the chip.
12. 11 short beeps - malfunctioning RAM. See paragraph 3.
13. 1 long and 2 short signals - video card malfunction.
It is recommended to pull out the video card and reinsert it. Check the integrity and quality of the monitor cable connection. If it does not help, replace the video card.
14. 1 long and 3 short signals - video card malfunction. See paragraph 13.
15. 1 long and 8 short signals - video card malfunction. See paragraph 13.
Phoenix BIOS signals
1-1-3. Error reading / reading CMOS data.
1-1-4. BIOS checksum error.
1-2-1. Faulty motherboard.
1-2-2. DMA controller initialization failed.
1-2-3. Error attempting to read / write to one of the DMA channels.
1-3-1. Error regeneration of RAM.
1-3-3. Error when testing the first 64 KB of RAM.
1-3-4. Similar to the previous one.
1-4-1. Faulty motherboard.
1-4-2. Error testing RAM.
1-4-3. System timer error.
1-4-4. Error accessing the I / O port.
2-x-x. Problems with the first 64k of memory (x - from 1 to 4)
3-1-1. Error initializing the second DMA channel.
3-1-2. Error initializing the first DMA channel.
3-1-4.Faulty motherboard.
3-2-4. Keyboard controller error.
3-3-4. Error testing video memory.
4-2-1. System timer error.
4-2-3. A20 line error. The keyboard controller is faulty.
4-2-4. Error when working in protected mode. The CPU may be faulty.
4-3-1. Error when testing RAM.
4-3-4. Real time clock error.
4-4-1. Error testing serial port. May be caused by a device using this port.
4-4-2. Error while testing the parallel port. See above.
4-4-3. Error while testing math coprocessor.
Attention!!!
1. If you do not feel prepared enough, if you have problems - contact the experts.
2. All manipulations with the "iron" make with the power off!
3. Before repairing the PC, it is necessary to remove the electrostatic charge (for example, by touching it with both hands to the nickel-plated surface of the water tap).
4. Even removing an electrostatic charge, try, if possible, not to touch the pins of the central microprocessor, video processor and other chips.
five.Do not clean the oxidized gold-plated contacts of the video card and RAM modules with abrasive materials! For these purposes, you can use the office eraser type "eraser".
6. Remember that most of the "PC faults" are "cured" by a simple reboot!
7. If you do not know which BIOS is installed on your PC, look at the top line on the monitor screen, for example, for Award there will be a line like Award Modular BIOS, for AMI - American Megatrends, Inc.

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