Question about Intel D945PSN Motherboard
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Posted on Jan 02, 2017
SOURCE: cmos jumper motherboard
JP11 move it to closed then move it back to open.
Posted on Mar 16, 2009
No need to worry. There are many known ways to reset / remove / bypass the password:
A. By Removing the CMOS Battery:
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.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.
C. By Using MS DOS Command:
This method works only if you have access to the system when its turned on because this method requires MS DOS. Open Command Prompt from Programs menu and provide following commands one bye one:
o 70 2E
o 71 FF
NOTE: The first character in the above commands is "O" and not the number 0.
After providing the above commands, restart your system and it should reset the CMOS Settings along with the BIOS password.
If you are curious to know how it works? then let me explain the above commands:
In this method we are using the Debug tool of MS DOS. The "O" character present at first in these commands, outputs the values to IO ports. The number 70 and 71 are port numbers which are used to access CMOS memory. By providing FF value we are telling CMOS that there is an invalid checksum and it resets the CMOS settings as well as BIOS password.
Posted on Jan 08, 2011
SOURCE: I am facing a problem
It sounds like you need to change a BIOS setting. I don't have this MoBo, but on others there is a toggle to make the integrated graphics primary or secondary. You would need to change it to secondary. On this card this should happen automatically - so check BIOS settings and that your new card is properly seated in the slot.
Installing External Graphics Cards
If you want to install a 3rd party external graphics card instead of using the onboard graphics, follow these steps:
Posted on Jan 10, 2011
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Apr 20, 2013 | Computers & Internet
Disconnect the power cord form the power supply, be sure the power supply is set for 110 or 220 volts depending on your location and power and double check it (most have a 110/220 switch)
Feel/look at the back of the power supply to determine if the fan is working.
If the fan is working, try another power supply anyway.
Plug the computer directly into a known-good (a lamp works) power outlet
Check to be sure you do not have a motherboard stand-off in the wrong position and shorting-out the bottom of the motherboard.
Inspect/shake and listen for loose metallic objects (loose screws) on top of and under the motherboard and in expansion board slots.
Look carefully at the ISA and PCI slots, see if any of the contacts got bent/shorted-out.
Sometimes an expansion board will dislodge one and it will be pushed into the bottom of the slot.
Inspect the motherboard for broken or burnt components.
Carefully inspect the motherboard for black soot from bad bearings and clean and replace the culprit.
Look for bent/shorted pins on the motherboard headers and straighten.
Be sure the speaker is plugged into the motherboard.
If you hear beeps.
Decode the beep code.
If not, double-check all jumpers.
Push down on all chips that have sockets in attempt to reseat them.
What CPU are you using?
Be sure the core voltage is correct.
Be sure the CMOS battery jumper is in the correct position.
Some distributors purposely ship motherboards with the jumper in the wrong position.
Find the jumper that clears the CMOS, put it into the clear position for several minutes, put it back in the normal position, plug-in the power cord, and push the power-on button.
If you apply power to the motherboard with the jumper in the clear position you may damage the motherboard.
Pull all boards except video.
Disconnect all cables going to all drives, pull all cables except power, power on, and speaker, connect the power supply to the motherboard
(the black wires go in the middle on AT power supply connectors--"Black OK, red your dead"), reseat the memory, plug-in and screw-down the display adapter and nothing else
(push down on the top, front of the adapter and make sure it is properly seated by looking at it all along the PCI or AGP connector), connect the power-on switch and the speaker.
Check the monitor plug for bent or pushed-in pins, connect the monitor and nothing else. Check the monitor power cable.
Reseat/replace the memory.
Check the CPU for bent pins.
Try another processor. Note: If you apply power to a motherboard with an Athlon or
Duron processor without the CPU fan connected, even for a few seconds, you will fry it (see http://duxcw.com/digest/guides/cpu/socketa/heattip.html).
Check the CMOS battery with a multi-meter. Should be around 3 volts (2.8 is ok).
Try a different video board.
See if the CPU and memory will work with another motherboard.
Pull the motherboard, set it on the box it came in, install video, memory, CPU, power, and power on.
See if it boots.
I have seen several instances where this works when the board will not work in the case.
And, when reinstalled in the case, it continues to work.
I have also seen where it didn't work out of the case immediately, but did work the next day and continued to work.
One of those mysteries.
Temperamental computers with minds of there own.
Replace the motherboard.
hope this helps
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