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On power on, there are two beeps. Then, almost immediately, "Scanning BIOS Image in Hard Drive" is displayed. That's as far as she goes. Is there any way to recover from this short of a new chio - I don't think this m'bd has a removable one. Any help will be appreciated. lou

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I believe that there is some issue with the memory sticks that are in the computer please open the computer and then remove the memory sticks and then try and restart the computer it should not give those beeps in case it does not then please replace the computer with new memory sticks and then try again...

Posted on Jul 24, 2008

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Posted on Jan 02, 2017

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Why does my computer light come on but want boot and want show a screen and making a beeping sound


In simple terms, you have a hardware failure, probably in your motherboard, hard drive or memory.

The beeps your hearing, are there for a reason. The way it works, is, when you first turn a computer on, it goes through a "Power-on, self test", (know as a POST).

During this period, the BIOS queries the system hardware, such as the hard drive controller, the i/o ports, the memory, etc. and expects to receive back a specific return code which indicates that the specific hardware is running properly.

If it finds a failure in some element of the hardware, it will issue a specific pattern of beeps to tell you which part of the system is failing. (It does this because the system may be unable to display the error on the screen).

Each of the different BIOS manufacturers (BIOS is an acronym for "basic input output system, the hardwired code that talks to the actual hardware), have their own series of short and long beeps, for the different type of failures. So to know where the failure is, you must first know what BIOS manufacture you have in your computer.

Some of the more popular manufacturers are: AMI, Award, IBM, Phoenix, Macintosh, etc.

When you first turn on our computer, the display will report which brand of BIOS you have, and its version.

Once you determine the brand, you can go to any number of web pages that have a cross-reference for the beeps for each brand on BIOS.
I think most adhere to the old IBM PC beep codes as follows:
No beeps: no power, bad CPU,
1 beep: normal
2 beeps: POST/CMOS error
1 long beep, 1-short beep: motherboard problem
1 long beep, 2-short beeps: video problem
1 long beep, 3-short beeps: video problem
3 long beeps: keyboard error
Several long beeps: memory failure (most common fault)
Continuous hi-lo beeps: CPU overheating

You can check with the following websites to get an idea of what's going wrong.
Computer POST and beep codes
How to Diagnose Computer Beeps eHow

Often times a SIMM has come loose in its slot (or corrosion on the connector tabs). If your getting a memory error, you can try opening the box and try re-seating each of the memory Simms to see it that might be the problem. (When you have them out, look at the row of pins along the bottom and see if any look corroded.)

Aug 25, 2014 | E-Machines eMachines Desktop PC

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Error Codes you need to know.


Standard Original IBM POST Error CodesCode 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 cardIBM POST Diagnostic Code DescriptionsCode 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

on Mar 09, 2010 | Computers & Internet

1 Answer

Boot sequence


Power off the machine. Pres the power button and immediately start tapping F2 until the machine goes into the BIOS menu.

Apr 26, 2014 | HP ENVY 700-215xt Desktop with Windows 7...

1 Answer

Bios update failed! Now i get 8 beeps and no display.. any solutions?


8 beeps is when the PC fails to write to its display memory. But the only change you have made is to update the bios, so I think the bios does not match the graphics card in the PC. Have you changed the graphics card or touched it inside the case? Check its fitted correctly.
I hope you backed up the old bios. If you did restore it. You may have installed a bios that is incompatible with that PC hardware, check its the correct one.

Dec 16, 2013 | HP Pavilion Desktop - 10GB Memory - 1.5TB...

1 Answer

I have an HP Pavilion a4000. It just stopped working a couple days ago. Display just rolled up and quit. I've been through everything I know how to deal with. When you push the power button it


First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty.
Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

Jan 18, 2013 | Computers & Internet

1 Answer

Five beep in Hp compaq 530


1 short beep and 1 long beep Memory problem 2 short beeps and 1 long beep (repeats 5 times) Unable to initialize video or video card required but not installed 3 short beeps and 1 long beep CPU configuration error or CPU type is not compatible The following beep codes are common to many HP and Compaq desktop computers that can occur while restoring, flashing or updating the BIOS : Beeps Description 1 short beep Legacy floppy drive or CD/DVD drive not detected 2 short beeps Floppy diskette or compact disc not detected 3 short beeps Unable to start flashing (such as when missing a utility or BIOS image) 4 short beeps Flashing failed (checksum error, corrupted image, etc.) 5 short beeps BIOS recovery successful

Apr 21, 2011 | HP Compaq Business d530 Ultra-Slim PC...

1 Answer

Beep sequence


Check the RAM memory chips... Could also be a display problem but mostly those beeps mean RAM memory chips not making proper contact or are faulty. Also remove battery and hard drive and replace it again. Those are your immediate options. Let me knowif it worked.

Jul 06, 2009 | Lenovo ThinkPad R61i 14 inch widescreen...

1 Answer

At POST I get 2 short beeps


it depends on the bios chip maker Here's some other beep codes:

for Award and Phoenix BIOS:

1 short beep: Normal
2 short beeps: CMOS error
1 long and 1 short beep: DRAM error
1 long and 2 short beeps: Video card error
1 long and 3 short beeps: Keyboard error
1 long and 9 short beeps: ROM error
Long continuous beeps: DRAM not installed correctly
Short continuous beeps: Bad power supply


AMI BIOS:

1 short beep: DRAM flash error
2 short beeps: DRAM ECC check error
3 short beeps: DRAM detect error
5 short beeps: CPU error
6 short beeps: Keyboard error
8 short beeps: Video card error
9 short beeps: ROM error
1 long and 3 short beeps: Bad DRAM
1 long and 8 short beeps: Video card error


Invoking Beep Codes

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If the computer is actually functioning and the computer beeps continuously, then there is a problem with a voltage on the power supply being incorrect or the CPU overheating. IMMEDIATELY go into the BIOS and check CPU temperature, fan speed and voltages

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BIOS Beep Codes

Annoying isn't it? You have built your computer you switch it on and then nothing happens except a few beeps from the PC speaker. Frustration sets in as you try to figure out what is wrong with it. If you didn't already know the computer has already told you the problem. It can't speak of course but it can direct you to the problem. Its all in the beeps. The BIOS can recognise when the problem occurs and sends a signal out to send a certain amount of beeps through the speaker. These beeps then tell you the location of the problem.

Unfortunately not all the BIOS' use the same codes as each other. Two of the main BIOS manufactures AMI and Award (now Phoenix) have different codes for there errors.

AMI BIOS

# of Beeps Error Description
1 Refresh Failure The memory refresh Circuitry is faulty
2 Parity Error Parity error in the Base (1st 64K) of memory
3 64K Base Memory Error Memory error in the base memory (1st 64K)
4 Timer Not Operational Timer 1 is not functioning (also caused by error in base memory)
5 Processor Error CPU error
6 8042 Gate A20 Failure Unable to switch to protected mode
7 Processor Exception Interrupt error The CPU on the CPU card generated an interrupt error
8 Display Memory Read/Write Error Video adapter is missing, incorrectly seated or has faulty memory
9 ROM checksum error The ROM checksum does not match that of the BIOS
10 Coms Shutdown Register Read/Write The shutdown register for coms RAM has failed
11 Cache Memory Bad The cache memory test has failed. Cache memory will be disabled. *** DO NOT enable it ***


With the first 3 beep codes, its well worth re-seating the memory just to make sure that it's in correctly. 8 Beeps is probably the most common in my experience. Can be caused by a badly seated Graphics card. If you have re-seated it then check with another Graphics card in the board.

Always check for loose components before sending the board back as this is the main cause of errors on the POST.



Award BIOS

Award states that they now only use one beep from there BIOS. This beep is one long beep and then two short beeps. This indicates a graphics card problem. Any other beeps should be treated as a RAM problem first and then the board sent in to be inspected.

The reason that the Award BIOS only uses the beep code for display problems is that it tries to display the error on-screen if at all possible. If the BIOS cannot initiate the display adapter then this causes the BIOS to make the beep code for a display error, which must be corrected before any other errors can be determined. Memory Test fails and hard disk failures etc will all be displayed on screen

IBM BIOS

The IBM BIOS works with Short and Long beeps as well as the Award BIOS. However the IBM one does still have codes to work from.

Beep Code Error
1 Short Beep Normal POST, System booted OK
2 Short Beeps POST Error - Code on Display
No Beep Power supply or Motherboard error
Continuous Beep Power supply or Motherboard error
Repeating short beeps Power supply or Motherboard error
1 short, 1 long beep System board error
1 long, 2 short beeps Display adapter error (MDA/CGA)
1 long, 3 short beeps Display adapter error (EGA/VGA)
3 long beeps 3270 keyboard card
Phoenix BIOS
The Phoenix BIOS works on a slightly more complicated manor than the others. It does display an error code for you and produce a series of beeps. This BIOS produces its beeps according to the hexadecimal code the error produces. The Phoenix BIOS has many different codes for its possible errors and so many different beep codes. Rather than list the entire section here, I have provided a link to the official PDF file containing the codes and how they are derived.

Phoenix BIOS Post Codes

System board errors should be looked at by a specialist, Again always try to re-seat components to ensure they are in correctly. If necessary take all components out except for the RAM CPU and graphics card, then try the system. Re-seating components is the number one fix for getting past the POST screen. One badly seated components can cause the entire system not to function. so pick out your bios and follow the steps above to diagnose .hope this helps

Jan 05, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

2 Answers

Computer not booting


remove & clean the ram then reinstall it your problem will sloves

Aug 24, 2008 | IBM ThinkCentre S50 8183 - P4 3 GHz...

1 Answer

PC boots up, but no display and hard drive does not seem to spin


Actually you do want to hear one beep.
This is POST. Power On Self Test.
No display is a video problem. Swap the card for a known good video card. You should be able to get into the BIOS with that. Presario’s are quit.
While in the BIOS see if the HDD is shown. It doesn’t hurt to check the connection inside. Please keep yourself grounded when inside the PC. For the Compaq Presario S4020WM site go here:
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&cc=us&dlc=en&product=326832&lang=en&

Dec 04, 2007 | Compaq Presario s4020wm (DK214AR#ABA) PC...

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