Question about ASUS A7N8X-E Deluxe NForce 2 Ultra 400 Motherboard (90M7A770GOUAYOZ)
I've just cleared the CMOS as it's described in the manual, and now the PC is dead. When I power it up the lights on the keyboard are flashing once and that is all. No beeps or anything else. I'm using an external videocard, so I removed it. The memory also - no a beep at all. Pressing the NumLock key doesnt lit the light. The mouse is powered up. Can anyone help me somehow?
Put the memory back in the computer first. (only one stick if you have more than one)
You are going to have to start with basic troubleshooting first.
TAKE notes as to where cables were etc. (digital camera would be useful here)
Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the on-board)
Disconnect all drives
Power u the computer and make sure you can at least get into the BIOS.
If you hear any beeps these can indicate where the fault is.
Power up the PC and see if the fans are working.
If not then double check the power connections to the board.
If you still have no fans it is time to suspect the power supply as the probable cause.
If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.
Now connect one drive only and boot again.
Repeat that until you identify the component that is giving you a problem.
Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem
If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it
If its not the PSU and your fans are working it may suggest a problem with either the motherboard or CPU
Posted on Sep 05, 2009
If you dis assembled your pc, make sure you have assembled it correctly. 1 cause for this is that it is grounded
Posted on Sep 05, 2009
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Posted on Jan 02, 2017
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Almost all motherboards use a small coin sized CMOS battery to store
all BIOS settings along with the password. To reset the password, unplug
the PC, open the cabinet and remove the CMOS battery for approx. 15-30
minutes and then put it back. It'll reset all BIOS settings as well as
the password and you'll need to re-enter all settings.
If it fails, then try to remove the battery for at least one hour.
B. By Using the Motherboard Jumper:
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
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