Monitor shut off, no BIOS post, no keyboard or mouse lights, will not boot
I was working on my computer
when the monitor suddenly shutoff. I did a manual reset and now the
monitor will not turn on and the BIOS will not post. After trying
several things, the BIOS posted once, and now will not post anymore. I
reset all items. Booted the computer with only the CPU, RAM and Video
card, still no post. I tried a different power supply, still no beeps
or posts. No keyboard or mouse lights either. Any help ASAP would be
P4 3.4 Ghz
Gigabyte GA-8KNXP motherboard
3 GB RAM
X800XT video card
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Re: Monitor shut off, no BIOS post, no keyboard or mouse...
Try another (Known good monitor). Or try you're monitor on another system.
Remove all memory except 1 DIMM. Double check all data cables (internally) & power cables. Remove the added video card. Try booting the system. Watch for the case LEDs to flash/blink, listen for hard drive spin up /cd-rom spin up. Lastly pull the battery & check with a volt meter. Bios battery should test no less than 3 volts. Post the correct MD rev.
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Once the monitor shows "no input", indeed the mouse and keyboard are pretty useless, even if the are working, as you cannot see they are working. If the monitor power light is on or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor needs replaced.
No signal at the monitor indicates (if you know the monitor is working ok) a failure of the graphics chip or graphics card, The lack of indicator light on the num lock LED and the lack of power to the mouse would indicate that there is a major issue with the motherboard. you can try using another monitor to confirm the problem lies with the graphics, and in the case of the keyboard and mouse, swap them for a usb version, if they work, the Ps2 ports are probably damaged. I'd be thinking of replacing the motherboard
I would try shutting down the computer in the normal way, and turning off the monitor. Boot up and turn the monitor back on. If it still doesn't work, then I would check the cables and power plugs and wall plugs. Check the mouse and keyboard cable and any other cables plugged into the computer. The next step requires a seperate monitor or laptop. Try unplugging the monitor and pluging in another monitor. Most laptops have a common VGA adaptor jack or even an Svideo jack. If the other monitor does not work, Then take to a qualified technician for repair. It could be your power supply in the computer or video controller.
I hope this was useful and please comment if this was helpful to you.
It appears that you have an IBM desktop whose BIOS isn't capable of booting off of a USB keyboard and mouse device. Older computers used to require that a PS2 mouse and keyboard be attached before booting, to prevent you from booting a machine without any way of controlling it. You have 3 options:
1. leave the corded mouse and keyboard attached and never use them
2. update the BIOS for your desktop to the newest one in hopes that the updated BIOS will allow for USB mouse and keyboard operation
3. go to a computer store and get a PS2 to USB converter/adapter. They're small and relatively inexpensive. It plugs into the PS2 port, and makes your computer think that there's a PS2 device connected, when it's actually a USB device.
Assuming you have checked in setup that the PS2 is turned on the other option is to re-flash the bios .
At some time someone switched the mouse and keyboard and started up the computer this can cause you to need to re-flash the bios most likely the keyboard chip needs to be replaced sorry to bring bad news .
Dell seems to have this problem yet the USB works is good where most modern keyboards and mouse are USB.
Purple is Keyboard if not color coded the closest to the outer side of case is the keyboard.
Good luck hope this helps you
PS. You may try setting the jumper pins to default the main board back to factory defaults then remove the jumper pin and leave off for first boot .When doing this be aware not to have the power cables connected to the server remove all power cords and the monitor . Prior to doing the first power up plug in the PS2 keyboard only then the monitor. Cross you fingers If you lucky your PS2 port’s will be working again if so shut down re install the jumper pin install the PS2 mouse.
Just go into the bios and insert the correct parameters. you shut it off before it could save the settings. Or hit fi on boot and it should take you into the bios and you cand sort it out in there. If you want an easy way, just do a system restore. Start,Programs, accesorys, system tools, system restore, just go back a day or two before you had that issue, and you should be good to go, good luck
Have you tried to enter BIOS? Are you able to enter BIOS?? There may be an option you have to hit to enable SATA, and to select the boot device order, which may be messing things up. Also, remember that STATIC ELECTRICITY is your enemy! Ground yourself when working inside the case.
I have the same problem, the CPU fan spins, keyboard lights blink, no start up screen, or bios. But, when I push a few times on the pc reset button, then the CPU fan is becoming still, the keyboard light are out and I can start the computer again in a normal way. Can this one be a temporally solution for you too? Do you have any suggestion about? I guess it can be an electricity dysfunction of a wrong fixed cable.
Solution for the mouse. I have 8 KVM's. Most of my computers work with the KVMs. On 1 inland KVM the logitect and Microsoft optical mice do not work on one computer (but work with the other computers). They both are USB. I hook them up with a USB to PS2 adapter. If I use a ps2 ball mouse connected to the KVM the mouse works. All the Mice work if I directly connect them. Since I do not want a ball mouse I got a Frisby optical PS2 mouse. It works with all the computers on the KVM's.
I do not have a solution for the Keyboard yet. 1 computer (ASUS MB) on my trendnet or belkin 4 postion KVM does not recognize the keyboard.
The best thing to do in this situation is to build your machine outside of the case, using the minimum amount of hardware,
Remove the motherboard and using only one stick of ram, the monitor, keyboard and mouse. short the power switch connector on the motherboard with a screw driver for a fraction of a second just to power it on.
If it starts up and gives you a "no boot disk" or "no Operating System found" at least you will know it's working and you can slowly connect everything else one by one to see whats preventing it from booting.
If it doesn't start like that, remove the power cord from the power supply and remove the mother board battery for at least 15 minutes, this will clear the BIOS and set it back to factory spec, now carryout the out of case procedure already stated.