When i turn on the cpu, sometime can't work, there sound beep. and the display tell me, that the cpu error becouse overheat, what its mean so sometime when i work, it shutdown it self how to fix it, please send to my email, email@example.com thank you very much
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You really aren't giving much info, so here are some beep - codes, also make sure nothing came loose on the motherboard or other components ( do this ONLY if you know how ) Safety first.
BIOS Beep Sound core list
1 short(Beep) System booting is normally.
2 short(Beep) CMOS setting error
1 long - 1 short(Beep) DRAM ERROR
1 long - 2 short(Beep) Display card or monitor connected error
1 long - 3 short(Beep) Keyboard Error
1 long - 9 short(Beep) ROM Error
Long(Beep) continuous DRAM hasn't inset correctly.
Short(Beep) continuous POWER supply has problem.
1 short(Beep) DRAM Flash Error
2 short(Beep) DRAM ECC Check Error
3 short(Beep) DRAM Detect Fail
5 short(Beep) CPU Error
6 short(Beep) Keyboard Error
8 short(Beep) Display card memory Error
9 short(Beep) ROM Error
1 long - 3 short(Beep) DRAM Damage
1 long - 8 short(Beep) Display card or monitor connected error
The problem is the board on the case's display. It has temp alarms for your components(video card, hdd, cpu), there are temp probes for you to set so you can monitor these temps. However the board that controls these functions, or at least mine and many others I have read about, is defective. It will change display constantly and sometimes have garbage display. It is setting its own limits for what is considered a hi temperature. The limit it has set for one of your components is < room temperature so it thinks you are having an overheating problem. You can manually set the limit for overheat and it will fix it for a while, but it will prob happen again.
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
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
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
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.
# 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 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
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
how to fixed your motherboard no display and no beep, 1st you must clean your memory using eraser and brush for painting if not display again try to clean your video card if have a video card using again the eraser and painting brush if not display again try to pull out the bass in the cdrom and floppy disk. if not display you must replace the memory and video card., if not display try to change your motherboard. The beep put speaker in the motherboard.. gudluck guys