Computer turns on but no Video and doesn't go through POST.
I am working on a computer for a friend. Someone built this computer for them about 3 years ago. It started giving errors about a fan failure. In an attempt to see what was wrong they opened up the computer, took off the heat sink and processor and put it back on. Now when you turn the computer on, all the fans run but it doesn't give any video and it doesn't even sound like it goes through the POST process. Is the processor fried or what is going on?
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Is the monitor new? Because some monitors need to warm-up a little bit. Have you tried to remove video card and/or mother board and reinsert? If that doesn't work, try the video card in another PC, If it works there, then the video card
itself is probably not the problem. (recommended). And those beeps (3-3-3-1) mean "Erase F2 prompt", but I don't know exactly what that means. This is all I know for now.
Built-in video on motherboards use shared RAM ie uses part of the main RAM. When you get POST beeps and there is no video then the RAM maybe faulty or just needs reseating. Try reseating the RAM first and if it still does not work the remove the RAM and take the RAM to your friendly computer repair shop and get them to test the RAM for you.
Hi, the thing to do here is to narrow down what could be causing the problem, initial suspects would be the RAM chips. If you have known working ones you can try in it, try these, if not, try without one, then swap them over, or even try without both.
Also, remove any components that aren't strictly necessary, i.e. hard drives & cables, cd-rom/dvd drives, extra PCI cards,network cards etc
Another suspect may be just a loose connection, try taking everything out, re-seating it. Again, pay particular attention to the RAM chips.
It could possibly even be a faulty processor, have you another you could try? Try taking it out and re-seating it.
try to power your board first see if the HDD light blicks .... if not turn off your computer remove your mem card clean the brass connector for your mem card using a pencil eraser and clean the mem card seats on the board using a brush then re-seat your mem card ... if stil not working replace your mem card with known good mem card if its ok replace your mem card
if theHDD light blink and no display check your video card clean your video card from dust build ups and also clean the brass connector using pencil eraser clean also the video card seat using a brush if your video card doesn't work have it replace
if your using a built in video card use an add on video card
3 beeps is a good indication that video card is dead. Try the card in another slot if possible, or another PC. If it does not work, it is time for a new one. At 6 months old, you may have luck with a warranty. Contact the manufacturer. In the meanwhile, hit up the local PC repair shops for a cheap used card so you can at least limp around the internet while you solve you broken card problems.
3 beep code is a video card mis function. try taking the video card out only after you disconnect the power cord and touch the cpu case to take the static from your body and make sure it properly seats into the slot. then restart your system if this doesn,t work and you continue to get the 3 beep code it will most likely time to get a new video card.. if the card is a built in card and you have available slots on *********** board try adding another card . depending on the age and brand of computer you coomputer will auto recognize another card and work or will ask you which card do you want tio use in this case prompt for the new card and it will contintue to use it. good luck .. thanks..
Have you check the video card, is it loose, not sitting right, beeps are either memory, video or a bad mobo.
here's a list of beep codes; the numbers represent the amount of beeps
The memory refresh circuitry has failed
Parity errors have been detected in the first 64 KB of memory
A failure has occurred within the first 64 KB or memory
System Timer failure: Timer 1 on the mainboard does not work
The CPU has generated an undetectable error
8042 Gate-A20 failure: BIOS cannot switch the CPU into protected
The CPU has generated an exception error
The video adapter is missing, or the memory on the adapter has generated a
The ROM checksum value does not match the value in BIOS
The shutdown register for CMOS interrupt channel 2 has failed POST; the
system board cannot retrieve CMOS contents during POST
Level-2 cache memory has failed the tests, and has been disabled
POST has failed, caused by a failure of one of the hardware tests
1 long, 2 short
Failure in video system: a checksum error was encountered in video BIOS ROM,
or a horizontal retrace failure has been encountered
1 long, 3 short
Failure in video system: the video DAC, the monitor detection procedure or
the video RAM has failed
POST procedures have passed
my goodness.. you have spent a lot in your computer i think.. i dont think changing mother board and installing a new vedio card will solve this problem. as u have said that u have installed a new card make sure that you are giving the connections of your monitor to the gforce card and not to the mother board again.
if connection for monitor is going for gforce properly your RAM is the problem. as per your configuration its single 512mb ram. i would advice you to go and get another DDR RAM(same 512 prefrably) from any of your friend and put it in you mother board in by removing the normal RAM you had. this will work for sure i think. if this is not working dont rate me in-approtiate. i just triend my best. sorry and tahnks.. good luck