Beeps 6 times when turned on, monitor remains black. Is the 6 beeps an error code? If so, for what problem? Notes: Upgraded to 2 GB RAM about 1 year ago, replaced failed C drive and installed Windows 7 Pro OEM from purchased CD about 2 months ago, has been working great until now. Thanks.

Step 1:
The beeps are post during post the very first work is done by the ram, all the memory in the ram is first transferred to the hard disk, and remains 1 short beep : Normal POST - system is ok
2 short beeps : POST Error - error code shown on screen

No beep : Power supply or system board problem
Continuous beep: Power supply, system board, or keyboard problem

Repeating short beeps: Power supply or system board problem

1 long, 1 short beep : System board problem
1 long, 2 short beeps: Display adapter problem (MDA, CGA)
1 long, 3 short beeps: Enhanced Graphics Adapter (EGA)
3 long beeps : keyboard card http://www.pchell.com/hardware/beepcodes.shtml

do you know which bios your computer is running ?

AMI BIOS beep codes 1 beep - DRAM refresh failure
2 beeps - Parity Circuit Failure
3 beeps - Base 64K RAM failure
4 beeps - System Timer Failure
5 beeps - Processor Failure
6 beeps - Keyboard Controller / Gate A20 Failure
7 beeps - Virtual Mode Exception Error
8 beeps - Display Memory Read/Write Failure
9 beeps - ROM BIOS Checksum Failure
10 beeps - CMOS Shutdown Register Read/Write Error

Phoenix BIOS BEEP codes. 1-1-3 CMOS write/read failure.
1-1-4 BIOS ROM checksum error.
1-2-1 System timer failure. (Programmable Interval Timer PIT)
1-2-2 DMA (direct Memory Access) failure.
1-2-3 DMA page register failure.
1-3-1 RAM refresh failure.
1-3-3 64K RAM chip or data line failure.
1-3-4 64K RAM odd/even logic failure.
1-4-1 64K RAM address line failure.
1-4-2 64K RAM parity error.
2-?-? Any beep series starting with 2 beeps indicates a 64K RAM chip or data line error.
3-1-1 Master DMA register test.
3-1-2 Mslave DMA register failure.
3-1-3 Master interrupt mask register failure.
3-1-4 Slave interrupt mask register failure.
3-2-4 Keyboard controller failure.
3-3-4 Screen (video) memory failure.
3-4-1 Screen initialization failure.
3-4-2 Screen retrace failure.
4-2-1 Timer tick interrupt test failure.
4-2-2 Shutdown test failure.
4-2-4 Unexpected interrupt in protected mode.
4-3-1 RAM test failure above address 0FFFFh (64K +)
4-3-3 Interval timer channel 2 test failure.
4-3-4 Time of day clock failure.
4-4-1 Serial port test failure.
4-4-2 Parallel port test failure.
4-4-3 Math Co-processor failure.
BEEP codes may vary dependent upon the revision of BIOS. This list is for reference only

hope this helps

how many beeps you have?if three short beeps its you RAM failure..try to reinsert you RAM or replaced it a new RAM..if theres a long beep..its your video card..

here are some of the basic codes, depending on which BIOS you have...

Also you do not indicate which fan? I would guess you mean the main Power Supply (PS)? In which case it could just be you need to replace the PS.

Here is a link to some other codes as well...
http://www.computerhope.com/beep.htm

AMI BIOS ERROR BEEP CODES

• 1 Beep - Memory Refresh Failure (check memory)
• 2 Beeps - Memory Parity Error in first 64KB block (check memory)
• 3 Beeps - Memory Read/Write Error in first 64KB block (check memory)
• 4 Beeps - Motherboard timer not functioning (possible motherboard replacement)
• 5 Beeps - Processor Error (may need replacement Processor)
• 6 Beeps - Gate A20/keyboard controller failure (possible motherboard replacement)
• 7 Beeps - Processor Exception Interrupt Error (may need replacement Processor)
• 8 Beeps - Display Memory Read/Write Failure (reseat or replace video card)
• 9 Beeps - ROM checksum Error (replace BIOS chip or motherboard)
• 10 Beeps - CMOS shutdown Read/Write error (possible motherboard replacement)
• 11 Beeps - Bad Cache Memory - test failed (replace cache memory)

Phoenix BIOS ERROR BEEP CODES
Phoenix BIOS beep codes are a series of beeps separated by a pause, for example:
beep --- beep beep --- beep --- beep beep would be 1-2-1-2

• 1-1-4-1 - Cache Error (level 2)
• 1-2-2-3 - BIOS ROM Checksum
• 1-3-1-1 - DRAM Refresh Test
• 1-3-1-3 - Keyboard controller test
• 1-3-4-1 - RAM Failure on address line xxxx (check memory)
• 1-3-4-3 - RAM Failure on data bits xxxx of low byte of memory bus
• 1-4-1-1 - RAM Failure on data bits xxxx of high byte of memory bus
• 2-1-2-3 - ROM copyright notice
• 2-2-3-1 - Test for unexpected interrupts

I hope this helps.

please find the range of error beeps below try to associate the error beeps you receive with the error message and possible solution.
Phoenix BIOS beep codes are a series of beeps separated by a pause, for example:
1 short, 1 long beep System board error also visit the below site for ore information
http://www.helpwithpcs.com/upgrading/post-beep-codes.htm

Without knowing what motherboard is in the unit - it will be difficult to determine what the 4 beeps means.

Generally, 4 beeps means issues with :

- memory
- video card
- keyboard
- motherboard failure

Things to try -

- make sure there is no keys stuck down
- remove the battery and AC adapter, remove and re-install the memory sticks (reseating the memory)

If this does not work, your problem may be more serious. Let us know the results of the above suggestions.

BLACK SCREEN WHEN START . STAY BLACK

Standard Original IBM POST Error Codes
Code Description
1 short beep System is OK
2 short beeps POST Error - error code shown on screen No beep Power supply or system board problem Continuous beep Power supply, system board, or keyboard problem Repeating short beeps Power supply or system board problem
1 long, 1 short beep System board problem
1 long, 2 short beeps Display adapter problem (MDA, CGA)
1 long, 3 short beeps Display adapter problem (EGA)
3 long beeps 3270 keyboard card
IBM POST Diagnostic Code Descriptions
Code Description
100 - 199 System Board
200 - 299 Memory
300 - 399 Keyboard
400 - 499 Monochrome Display
500 - 599 Colour/Graphics Display
600 - 699 Floppy-disk drive and/or Adapter
700 - 799 Math Coprocessor
900 - 999 Parallel Printer Port
1000 - 1099 Alternate Printer Adapter
1100 - 1299 Asynchronous Communication Device, Adapter, or Port
1300 - 1399 Game Port
1400 - 1499 Colour/Graphics Printer
1500 - 1599 Synchronous Communication Device, Adapter, or Port
1700 - 1799 Hard Drive and/or Adapter
1800 - 1899 Expansion Unit (XT)
2000 - 2199 Bisynchronous Communication Adapter
2400 - 2599 EGA system-board Video (MCA)
3000 - 3199 LAN Adapter
4800 - 4999 Internal Modem
7000 - 7099 Phoenix BIOS Chips
7300 - 7399 3.5" Disk Drive
8900 - 8999 MIDI Adapter
11200 - 11299 SCSI Adapter
21000 - 21099 SCSI Fixed Disk and Controller
21500 - 21599 SCSI CD-ROM System
AMI BIOS Beep Codes
Code Description
1 Short Beep System OK
2 Short Beeps Parity error in the first 64 KB of memory
3 Short Beeps Memory failure in the first 64 KB
4 Short Beeps Memory failure in the first 64 KB Operational of memory
or Timer 1 on the motherboard is not functioning
5 Short Beeps The CPU on the motherboard generated an error
6 Short Beeps The keyboard controller may be bad. The BIOS cannot switch to protected mode
7 Short Beeps The CPU generated an exception interrupt
8 Short Beeps The system video adapter is either missing, or its memory is faulty
9 Short Beeps The ROM checksum value does not match the value encoded in the BIOS
10 Short Beeps The shutdown register for CMOS RAM failed
11 Short Beeps The external cache is faulty
1 Long, 3 Short Beeps Memory Problems
1 Long, 8 Short Beeps Video Card Problems
Phoenix BIOS Beep Codes
Note - Phoenix BIOS emits three sets of beeps, separated by a brief pause.
Code Description
1-1-3 CMOS read/write failure
1-1-4 ROM BIOS checksum error
1-2-1 Programmable interval timer failure
1-2-2 DMA initialisation failure
1-2-3 DMA page register read/write failure
1-3-1 RAM refresh verification failure
1-3-3 First 64k RAM chip or data line failure
1-3-4 First 64k RAM odd/even logic failure
1-4-1 Address line failure first 64k RAM
1-4-2 Parity failure first 64k RAM
2-_-_ Faulty Memory
3-1-_ Faulty Motherboard
3-2-4 Keyboard controller Test failure
3-3-4 Screen initialisation failure
3-4-1 Screen retrace test failure
3-4-2 Search for video ROM in progress
4-2-1 Timer tick interrupt in progress or failure
4-2-2 Shutdown test in progress or failure
4-2-3 Gate A20 failure
4-2-4 Unexpected interrupt in protected mode
4-3-1 RAM test in progress or failure>ffffh
4-3-2 Faulty Motherboard
4-3-3 Interval timer channel 2 test or failure
4-3-4 Time of Day clock test failure
4-4-1 Serial port test or failure
4-4-2 Parallel port test or failure
4-4-3 Math coprocessor test or failure
Low 1-1-2 System Board select failure
Low 1-1-3 Extended CMOS RAM failure

Do you get video? If so then it could be a stuck key on the keyboard.

Do you get no video? If so then reseat the RAM.