One Beep :
DRAM refresh failure
This may be due to - Bad memory chips
- A bad DMA Chip
- Bad memory addressing chips on the motherboard
Two Beeps :
Parity error or Parity Circuit failure
-Your memory may not be seated properly on the mother board.
-Unplug and plug it properly
Three Beeps :
Bad memory or bad mother board
Four beeps :
Timer failure in the RAM.
Five Beeps :
CPU chip may be dead
Six Beeps :
Keyboard controller may have failed
Seven beeps :
CPU is dead. Retry the connections and test.
-Replace the whole motherboard.
Eight Beeps :
Video card is missing or Bad.
Nine Beeps :
Damaged ROM BIOS.
-BIOS chip has to be replaced if it persists.
Ten Beeps :
CMOS shutdown.
-Replace CMOS memory and associated chips.
Eleven Beeps :
Cache memory test has failed.
-To enable cache memory try CTRL+ALT+SHIFT++.
One long Beep and Three short Beeps:
Memory failure
One long Beep and Eight short Beeps :
Video card failure.
-Try to install video card in another slot.
No Beeps :
Check Power supply
-Check mother board connections
-Remove all cards except video card and check for system power up
-Insert all cards one at a time and check their operation.
-If system hangs on the installation of a particular card, then it is the cause for the problem and replace it with another of that type and check
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