I recently bought a computer off ebay and when I pressed power, all it did was one long beep. I disconnected everything except keyboard, mouse and monitor. still one long beep. can anyone help.(p4, 512mb)
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Re: pm266a pro one long beep
This could mean either processor/board, memory or graphics, there is no info for beeps on your board, try looking for the cmos clear terminals on the motherboard (JP1) and put jumper accross pins 2-3 then back to pins 1-2.
Try booting up again. and hopefully only one beep.
But if it still occurs then its a process of illimination with other parts and you will need spares to try it unfortunately.
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If nothing happens at all it sounds like a power problem, check the fuse in the mains plug, check for an on/off switch on the back of the computer, if neither of these are your problem then it may be a faulty power supply or simply a faulty switch on the front. Hope this helps.
A good place to start is to find the reset jumper on the mother board and jumper it. Next you can try disconnecting everything attached to the mother board except the cpu and the heat sink fan. Turn the computer on and you should get a post error beep. If your computer stays running then you will want to attache everything one piece at a time starting with your the keyboard and mouse then the video card so you can see the POST (power on self test) on the screen. Keep adding components until it stops and you have found the problem. If this doesn't solve your problem, you should test your power supply. A bad power supply can and has caused the same problem. If you can't find a detailed test procedure for the PS let me know and I will give you the steps. The cpu power on is dependent upon getting proper voltage from the PS. Good luck.
Not so sure about this but I hope this will help.
-try to disconnect all the cables from the back (monitor, keyboard, mouse, usb's, power cable, etc.)
-then disconnect all the card (video card, sound card, NIC) if all are integrated then you dont have to.
-connect just the power cable
-try to turn on the computer and check if it beeps
-if it does not beeps need to replace the motherboard but before you do this check if the fan will spin even for a single second if does not spin then you also need to replace the power supply as well
-if it beeps then turn it off again.
-connect the video card and connect the cable of the monitor, keyboard and mouse
-turn on the computer then check if theres any display
-if theres no display check for any beep indication. and right it down on a piece of paper on how many times it beeps and if its long beep or short beep.
kindly provide an email if this things does not work so that I can give you a resolution.
Its a no post issue. The computer must be making some beep sounds, disconnect everything thing from the computer except for keyboard, mouse, power and monitor. then try, if still doesn't work then you are looking at an internal hardware failure.
If this was helpful, then kindly rate me.
Beeps always indicate error excluding a one single beep only which indicate process.Every manufacturer has its own beep setting. it comprises on short and long beeps. If previously it working good, then your idea may be correct. replace both the keyboard and mouse with existing. start computer if now it not giving beeps it meant that one of them is causing problem. connect one by one and start computer you will reach. AND if even after replacing keyboard and mouse it gave beeps then shut down your system. Open casing remove processor and memory chip out and connect them again it will work now INSHALLAH.
Disconnect the power cord from the back of the system. Press and hold down the power button for 10 seconds.
Disconnect everything from the back of the computer ,except keyboard, mouse and monitor.
Reconnect the power cord and then check
GCS632U is designed to work with standard USB keyboard an mouse only. You have to make sure that you are not using any type of adapter such as PS/2 to USB adapter. To further isolate the problem, please follow the steps below:
1. Connect the USB keybord directly to th computer to make sure that the keyboard is working properly.
2. Make sure that the keyboard is connected to the keyboard port on your KVM switch. You may take a look under neath this GCS632U (near the USB ports) and you will see an icon where to connect the keyboar and mouse.
3. If you're still gettings the same problem, Try power cycling this kvm switch by disconnecting if from the computers and disconnect also the keyboard and mouse from the KVM switch and leave them disconnected for a minute or two.
4. Reconnect everything after two minutes and then reboot the two computers.
5. If same problem exist, try using different USB keyboard.
NOTE: This KVM swith does not work correctly with wireless, gaming and smart keyboards because it's designed to work with standrd USB keyboard only.
Look for any bent pins of the mouse & keyboard cable jacks(PS2). If any key is depressed then the PC wont start-up and continue to remain blank except for the power led. If you had disconnected any wires during re-fixing your CD ROM, check them again and if possible everything else other than Monitor, Keyboard and Mouse.......sodeep. PS: disconnect your CD-ROM (wiring only) & check the sttus too!
Some history would be appreciated. Has this computer ever worked? Have you recently added new hardware or software? Has anything happened recently that may have caused this (lightning storm, etc.)?
If the computer was working fine and for no apparent reason now won't POST, first remove everything from the outside (keyboard, mouse, etc.) except monitor. If that works, one of the items you removed is causing a problem.
If not, unplug power, open case, remove all expansion cards except for video, then try again. If you have never worked inside a computer, some help from a knowledgeable friend would be advised. Be sure to touch the metal case before touching any circuit board inside the computer. Also disconnect the cabling from all of the drives and then retry boot.
Let me know if this helps. If not, we can do more providing you are comfortable working inside the computer at my direction.