The computer turns off after about five seconds without POST
When the computer is turned on the computer turns off after about 5 seconds. when the cable coming out of the psu that has the two yellow and 2 black wires coming out of it, is not connected it works fine. but once that connector is placed back in the mother board it will not work.
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The graphics card in the PC is very likely faulty. It is possible to remove the graphics card and reconnect the monitor cable to the onboard graphics. Look on youtube for help on removing the graphics card (try a search for iq772). The monitor connector is at the front of the motherboard, near to the graphics card. re-connect it to a similar connector to the left to use the on-board graphics.
Turn the computer off.
Disconnect the AC power.
Look closely at the motherboard.
Look for 3 pins in a row, with a jumper between 1 & 2.
This is the "BIOS RESET" control.
Move that jumper to connect 2 & 3, for 5 seconds.
to reset the BIOS to its "default" settings.
Move that jumper back to to the 1 & 2 position.
Reconnect the AC power.
Turn the computer on.
Enter BIOS SETUP, to confirm that the "default" settings have been restored.
When you hear 5 beeps while booting or turning the computer off it is related to the operation of critical motherboard components - such as the CPU.Please try these steps to try fixing this problem .
Open up the computer tower and then once the side panel is out a test on the motherboard needs to be done and to do that look for the memory cards(Ram ) which would be green in colour,4 inches long and would be inserted in a slot that has clips in either ends that holds the card in the slot firmly.There can be one or more than one so remove the memory cards and then turn the computer on by just connecting the power cable,you should hear long beeping noise if you dont hear any then the motherboard needs to be replaced or needs to be serviced.
You have to have ram memory in, for the computer to operate at a basic function. To get to the BIOS POST screen.
NOTE* When changing out hardware do you have the power disconnected from the computer? Yes, I know, but I have to ask.
Also, do you follow anti-static precautions before sticking your hands inside the computer? Touch the metal frame of the open computer case before reaching inside?
Your body carries Static electricity. Static can fry out the hardware components inside your computer. Especially the Processor, which is the most susceptible hardware component to static shock.
1) Computer unplugged from power. Video card removed. Monitor plugged into VGA port on the motherboard. Ram Memory installed. Harddrive data (Interface) cable disconnected, and power cable. Same for any optical drive/s.
Press the Power On button in, and hold it in for a count of Five seconds. Let go. Do this procedure 2 more times.
What you are doing is clearing CMOS Error Codes, and resetting BIOS Setup back to the factory default settings.
Plug back into power. Wait 1 minute. Turn the computer on.
Do you get the BIOS POST screen? Let's start from here.
Press and HOLD the Power button for 5 seconds ...this will turn off computer ......her's a list of beep codes http://www.computerhope.com/beep.htm
These may help !
Try a different keyboard /mouse if you can /make sure NO pins are bent or missing on PS2 connection .....
When booting up computer hold the DEL key down this will take you into the BIOS.......Select LOAD DEFAULTS usually F10 ...you'll see it on bottom of screen .....Save when prompted and see if it boots......Good luck
Here is what is says in the owners manual in what to do in this case, Hope this is a Help, Happy Holidays Red Power LED flashes five times, once every second, followed by a two second pause. 5 Pre-video memory error. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Red Power LED flashes six times, once every second, followed by a two second pause. 6 Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. Power on If you need anymore let me know and I will post them for you.