Question about Intel Desktop Board D845WN Motherboard

2 Answers

Cannot power on PSU

I have checking my mother board, there is supply power in, but when i press the on/off button, mother board not working, it is standby battery (CR2032 3V) low will cause unable trigger the PSU power.

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 131 Answers
Re: Cannot power on PSU - Intel Desktop Board D845WN Motherboard Motherboards

Does you cpu fan runs

Posted on Jan 02, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,601 Answers
Re: Cannot power on PSU

If you know for certain that the Power Supply is good. (tried another in there) then you have a bad motherboard. No, the CMOS battery will not keep it from coming on.

Posted on Dec 31, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

3 Answers

Power supply was removed and don't no where to put wires/acer aspire

cable has 20 or 24 pin group it will only go in one way

Apr 16, 2014 | Intel Motherboard

1 Answer

Will not power up. Replaced bad power supply(burned circuit board inside PSU) but still does not power up, PSU is ok. When power on button is pushed CPU fan turns for about 1/2 second but nothing else....

Sounds to me like when the power supply went out it allowed a surge to hit the mother board and you will have to replace it also .Look at the mother board and see if there is a green LED light showing if it is you are getting power to it and you have capacitors blown if not recheck you connections from the power supply and MB if they are all tight and correct then just figure on replacing the mother board

Sep 01, 2011 | Biostar M7VKB Motherboard

1 Answer

I have an Abit IC7-G motherboard. Machine has died with no reaction from pressing power on and reset buttons. Power cable in is OK and when connected, green light behind IDE1 socket lights up (which says...

Most obvious problem would be the power supply. The green LED only indicates that the 5V rails os working enough to power the on/off circuit on the motherboard. First disconnect everything except the mother board from power supply. Then try switching on again. If this does not work, then disconnect the power connectors from the motherboard. ON the big power connector (P1) there should be a green wire with two black wires either side. This is the power on sensor wire. Use a paper clip or similar bit if wire to short out the green wire with one of the black wires. This should start the power supply and the fan in the PSU should spin. If this does not work then the PSU is definately faulty. If it switches on when there is no load connected then it is probably only slightly faulty (not able to provide sufficient current). Since the green LED is coming on, my guess is that you have bad capacitors in the PSU (they will probably have domed tops instead of flat). Try a power supply from another PC if possible.

May 25, 2011 | Abit IC7-G Motherboard

2 Answers

My computer won't turn on. I cleaned the Air spinner thing, checked the mother board, and everything was fine. The computer is an Emachines T2824. Can i have some assistance on how to get it to turn on?

If the machine is doing nothing at all when you press the power button, chances are your Power Supply Unit (PSU) has failed. If this is the case, the only way to fix it, is to get a new PSU.

Nov 03, 2010 | Motherboards

1 Answer



This board has 2 slots for the ATI Crossfire video cards. Since the computer is turning off right away, it would appear that your PSU (power supply unit) does not have enough watts to power the motherboard and Crossfire video cards.

Check with ATI for the power requirements for your video cards and upgrade your PSU.

I typically see SLI / Crossfire systems with at least a 800 watt power supply. If you are below this, you will need to upgrade your power supply.

If you have a larger power supply, you will need to verify it is working correctly.

May 01, 2010 | Intel Motherboard

1 Answer

No power ON of mother board

Get a power supply tester $10 ebay and test the PSU. led lights show if it is ok. often the PSU will run and appear to be ok. But will have below voltage when load comes on.

Apr 01, 2010 | Intel D845GVSR Motherboard

2 Answers

I have a emachine PC. PowerSupply blew up. changed it still down




1. check power supply watt 400/450 and same another power supply install and check it. if power supply change and system is working ok so problem in your power supply.

2. check CMOS cell on motherboard,(3 volt)

3. Bfore power supply changing check on mother board any capasitor is like as damaged or not.
OR check main chipset ic is marked as intel.whenpower on it is very hitting or
normal)if very hitting require to repair your motherboard.(intel chipset ic near cmos cell or pci slot,)
4. checking of ram on other pc (working or not)(one beeps coming or not,if one beep coming ram is working ok)

Feb 27, 2009 | Intel D845EPI (INTELKD845EPILPAK10)...

2 Answers

Computer will not boot

Option 1 :

Remove completely the mother board from Cabitnet.

Try to check it on other Cabinet.

Option 2

Remove mother board and re- plug the SMPS power Connecter to Mother board outside of cabit and make sure that motherboard is not touching directly to Metal part of cabinnet.

then switch on computer and check

Nov 22, 2008 | ASUS P4S800-MX Motherboard

1 Answer

Mother board problem

The noise must be coming from the power supply. The only thing running before you press the power on button is the PSU.
Unplug the power cord on the PSU. Check the back of the PSU for a red slide switch. Make sure it is set for 115v. Than disconnect the main power from the motherboard. Plud in the power cord, (still hear the high pitch noise?). Swap out your power supply.


Apr 09, 2008 | ECS RS400-A (V1.0) Motherboard

Not finding what you are looking for?
Intel Desktop Board D845WN Motherboard Logo

Related Topics:

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intel Motherboards Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers


Level 3 Expert

2598 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Are you an Intel Motherboard Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides