How To Fix Two Beeps Post Cmos Error
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Search Username Password Remember Me? Register Lost Password? facebook google twitter rss Free Web Developer Tools Advanced Search Forum Computer Hardware Motherboards Boot Problem - 2 Beeps at POST Thread: Boot Problem - 2 Beeps at acer beep codes POST Share This Thread Tweet This + 1 this Post To Linkedin parity circuit failure Subscribe to this Thread Subscribe to This Thread September 29th, 2004,11:41 AM #1 No Profile Picture renegade13 View Profile asus beep codes View Forum Posts Registered User Devshed Newbie (0 - 499 posts) Join Date Sep 2004 Posts 1 Rep Power 0 Boot Problem - 2 Beeps at POST Hello, After 3 problem-free years with gigabyte beep codes my computer, I'm now having boot problems. I get 2 beeps at POST which supposedly means parity circuit failure. I tried playing with the RAM (make sure it seated properly, tried different slots, tried different memory sticks) but that wasn't the problem. I thought it might be the motherboard so I replaced the MOBO and also purchased new RAM. Last night the problem returned.....the house power flickered for a second,
Hp Beep Codes
the computer went down and then tried to re-boot itself but couldn't. It just gave the two beeps. I completely shut it down for about five minutes then came back and tried booting it and it booted fine. This has happened in the past also where the house power flickers, computer won't re-boot, turn it off for 5-10 minutes and then it starts fine. The problem has also occurred on some cold boots in the morning but that is pretty rare. It's obviously not the MOBO or RAM. What else can cause the 2 beeps? Any thoughts? Thanks. Faq Reply With Quote September 30th, 2004,08:03 AM #2 No Profile Picture megumi amatuka View Profile View Forum Posts Contributing User Devshed Demi-God (4500 - 4999 posts) Join Date Jun 2004 Posts 4,868 Rep Power 341 (^^;?(How do we know that without info. Beep code is defined by Bios.) Consult your mobo maker and search about its bios. Faq Reply With Quote November 2nd, 2004,02:46 PM #3 No Profile Picture darqecn View Profile View Forum Posts Registered User Devshed Newbie (0 - 499 posts) Join Date Nov 2004 Posts 1 Rep Power 0 Ab
starting the remainder of the boot process. If the computer passes the POST, the computer may give a single beep (some computers may beep twice) as it starts and continue to boot. However,
Post Error Codes
if the computer fails the POST, the computer will either not beep or intel motherboard beep codes generate a beep code that tells the user the source of the problem. If your computer has an irregular POST or computer beep codes list a beep code not mentioned below, follow the POST troubleshooting steps to determine the failing hardware component. AMI BIOS beep codes Award BIOS beep codes Dell beep codes IBM BIOS beep codes Macintosh startup http://forums.devshed.com/motherboards-106/boot-2-beeps-post-187734.html tones Phoenix BIOS beep codes Motherboard help AMI BIOS beep codes Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary. Beep Code Descriptions 1 short DRAM refresh failure 2 short Parity circuit failure 3 short Base 64K RAM failure 4 short System timer failure 5 short Process failure 6 short http://www.computerhope.com/beep.htm Keyboard controller Gate A20 error 7 short Virtual mode exception error 8 short Display memory Read/Write test failure 9 short ROM BIOS checksum failure 10 short CMOS shutdown Read/Write error 11 short Cache Memory error 1 long, 3 short Conventional/Extended memory failure 1 long, 8 short Display/Retrace test failed two-tone siren Low CPU Fan speed, Voltage Level issue AWARD BIOS beep codes Below are Award BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary. Beep Code Description 1 long, 2 short Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information 1 long, 3 short Video card not detected (reseat video card) or bad video card Beeps repeating endlessly RAM problem. Repeated high frequency beeps while PC is running Overheating processor (CPU) Repeated beeps alternating high & low frequency Issue with the processor (CPU), possibly damaged If any other correctable hardware issues are found, the BIOS displays a message. Dell beep codes Beep Code Description 1 beep BIOS ROM corruption or failure 2 beeps Memory (RAM) not detected 3 beeps Motherboard failure 4 beeps Memory (RAM) failure 5 beeps CMO
an audio beep or in the form of a code number flashed across the screen. With this audio code in hand, you can determine what part of http://www.pchell.com/hardware/beepcodes.shtml the system is having problems and find a solution. The pattern of beeps whether its the number of beeps or the length of those beeps will give you an indication of the actual problem. Its a distress signal from the computer in a morse code like pattern. Unless you have a diagnostic card to tell you more about the particular problem, you will have to use beep codes the charts below to decipher the computer error and get your machine back up and running. Standard IBM Error Codes | AMI Beep Codes | Phoenix Beep Codes | Award Beep Codes | LED Diagnostic Lights | BIOS UpgradesStandard Original IBM POST Error Codes 1 short beep Normal POST - system is ok 2 short beeps POST Error - error code shown on screen No beep Power how to fix 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 3270 keyboard card IBM POST Diagnostic Code Descriptions 100 - 199 System Board 200 - 299 Memory 300 - 399 Keyboard 400 - 499 Monochrome Display 500 - 599 Color/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 Color/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