Question about Gateway (4000811) Motherboard

2 Answers

Power LED on but no boot up

Plugging in the power supply, the mobo LED light inside becomes lit. I hit the power button and the power LED light becomes lit but nothing else kicks in (fans, HDs, bios, etc.). There's a "Test Switch" on the power supply so I pressed it and held it in and the computer boots up normally as long as I keep my finger on the switch. If I were to let go, everything but the power LED light and the mobo LED light goes off. Say I hit the power button for 5 seconds to shut it off. Now when I hit the "Test Switch", the CPU fan and the power supply fan turn on but, of course, the HD and everything else won't because the power button wasn't hit. There are 5 wires coming from the power button area. Three wires are coming from to the dual-color power LED (green/red for standy mode). The other two come from the power button switch. The opposite end of the wires go to the motherboard grouped together. It seems that the power supply is operating fine when I hit the test switch on its side. This must mean that the mobo isn't signaling the power supply to power up when the power button is hit. I can't imagine the power button being bad because the LED does light up when the button is depressed. Does anyone have any ideas what could be wrong?

Posted by on

  • 4 more comments 
  • miro sam Feb 17, 2007

    ever happen to anyone?

  • miro sam Mar 25, 2007

    thanks for the suggestion. i know the switch is fully functional; i've tested it independently. as an experiment, i've also took the PS_ON signal from the power supply and connected it to ground and watched it power up just fine. (i've also tested the power supply by using it in another computer) The only way I could get it this PC to fully work is by hooking up a transistor to connect the PS_ON signal (to the collector/drain), ground (to the emitter/source), and the wire going to the power on LED in front of the case (to the base/gate). That way, when the power button is pushed, the motherboard sends the signal to light up the front LED (which it originally did) and, at the same time, send a signal to the transistor to bring the PS_ON signal to ground. When the PS_ON signal is grounded, the power supply activates all of its power lines going to the components like the hard drive and stuff and the computer boots up fine (which is what i experimented with earlier).

  • miro sam Dec 06, 2007

    i is the motherboard..the only way i was able to reuse the motherboard was to buy a PNP transistor and wire stuff up from the power supply to the motherboard...crazy and not recommended

  • Anonymous Dec 10, 2008

    yes i have the same problem. This hhappened when i switvhed cases from the stock to a cooler master case. I plugged everything in correctly and the screws on the motherboard arent too tight. When i start the computer teh fans go off for a split second and dies. I know that my mother board works b/c when i switch cases back to the stock case it boots. Plz help

  • Anonymous Jan 16, 2009

    I have a similar problem with my Gateway. I really do not know that much about computers. If this fixable, or should I just get a new motherboard?

  • Anonymous May 22, 2009

    INSIDE motherboard led works power up don't work



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Its the Mother Board..I had the same problem and had to have a new MB put in

Posted on Dec 04, 2007

  • Doug Sand Oct 07, 2012

    That's what I thought too. Because I also swapped my power supplies with my other comptert and that did nothing. So I order another MB and cpu, and guess what? The same problem! I'm at a loss especially since this should be an easy fix.


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


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

  • Expert
  • 121 Answers

I'm wondering if you have the jumpers set for the power button correctly on the motherboard. If the test switch is working properly when held in, then there's something wrong with the power button itself (maybe it's not going in enough to turn it on? I've had that problem before and had to McGuyver it with super glue and a little wad of paper to work correctly)

Posted on Mar 22, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Am5630-u5202a acer aspire desktop windows vista, i press the button on the front it lights up the led inside and stays on but the computer itself wont. ie cpu fan ist turning or case fan or getting the...

Have you checked the keyboards light? Is it lit? When you press on the CAPSLOCK button, does the light changes in the keyboard?

Try to unplug the hard drive, and DVD from the mobo and see if it goes well.

If no go, try removing the RAM sticks and see what's on the screen when you turn it on. Then put each part back one by one, checking the computer for any change or something like that.

Dec 16, 2012 | Computers & Internet

1 Answer

Gateway yellow power button, nothing starts, no fan, nothing. opened up computer and see mobo led light is lit. newton ps has a test button. tried to test with various components plugged in and the test...

Power supply has several voltages. Just because the 5v power is active doesn't mean all the voltages are OK. You need to have the power supply tested for 12v and 3.3v. A quick test is to unplug all the wires from the power supply. There is a single green wire on the motherboard main plug. Connect (use a bent paper clip) that green switch wire and any black wire. Plug in the power supply and it should run (fan starts)

Oct 26, 2009 | Gateway (ATX-300-12EB3) (ATX30012EB3)...

1 Answer

Newly built system will not power up!

It seems like you have bad MOBO. I recently ordered all the stuff to build 2 new systems. Built the first one, no power, just like yours. Moved everything to the 2nd MOBO, everything worked. I did a RMA on the DOA MOBO. Got the new one and it fired right up. Sometimes you just get bad stuff.

Please don't forget to rate this solution.

Jun 09, 2009 | Gigabyte GA-8SQ800 Motherboard

2 Answers

ASUS P4XP-X won't energized after minimal repair

Either the board was damaged during the repair attempt, or was bad to begin with. The original problem description (black screen) sounds like typical mobo "no boot" trouble. The loose heatsink on the chip may have contributed to the failure, or it may have been simply coincidence. Given the low cost of motherboards, it's silly to spend any more time on attempting to diagnose and repair a problem. Just replace the board and move on.

May 10, 2009 | Computers & Internet

1 Answer

No boot up.

Power supply is easier to troubleshoot my local pc shop has used ones for $5 or if you have one laying around make sure you have one with the proper mobo connector 24pin will sometimes fit 20 pin as long as there are no transistors to close to plug just turn pc off unplug all drives and mobo plug in good supply and turn on if it works thats the problem if not probably mobo

Apr 10, 2009 | Shuttle SK43G (tsk43g) Barebone

1 Answer

E-Machines T2891 PC Desktop will not start when power button push

KingPin, is there any sign of life at all? Any lights, whiring, harddisk spinning?? Is there an LED (small light) visible on the motherboard when the power is on???
If nothing, certainly a power problem - but where. While you have the case open looking for the lit LED on the mobo, can you see any capacitors, the little cylinder-type components on the mobo circuit board that look like little batteries standing up, there'll be about half a dozen of them, that look like they may be bloated, or like a coke can left in the freezer about to explode. Do any of these capacitors look like they could be oozing goo, maybe a yellowish rusting liquid. If any do, this is not good.
If none of that applies the next step is to check your power supply. I would not suggest an amateur to do this over a step-by-step chat as it involves shorting out points and if the system is live, the wrong points shorted, well, guess you'd know what could happen (not good). The power supply is not easy to diagnos for errors, they're tricky buggers that can test well for voltage but once a load is put on them they roll over and play dead. Get an expert to test your power supply, very simple task of they plugging in a PSU tester (or borrow one, or buy one).
Please keep us informed on how you go - seriously, we grow stronger as we grow wiser when we finish a job.

**.The best way to acknowledge contribution is to rate it's relevance.**

Feb 06, 2009 | EliteGroup P4M800PRO-M Motherboard

1 Answer

Toshiba A105 keeps Restarting ---

maybe the power input is error
the uncorrect power input will result bad
or, it's your mobo broken

Jan 25, 2009 | Toshiba Satellite A105 Notebook

2 Answers

Dimension 8200 will not turn on

Try a new power button. Also does the machine power light turn on at the front of the machine? if so check that the CPU is seated correctly as if it has come out of position then the machine doesn't boot. I would like to think power switch though.

Thanks J

Jan 17, 2008 | Dell Dimension 8200 PC Desktop

1 Answer

Power LED on but no boot up

it could be your power switch, veriy that it isnt the power supply by

1.) un-plug it from the main board
2.) look at the main board connector(one coming of the power supply)
3.) you should see green wire and next to it a black one
4.) using a paper clip bridge the too wires
5.) if it works proceed to net step if not get a new power supply

to check case switch and board switch

1.) plug in power supply to main board
2.) look at the pins where the power button connects to
3.) using a metal object (blade screw driver) bridge the pins

if the board should start up>
then its your power button on the case that is bad, you can try to repair it, chage it or buy a new case,

if it doesnt work.
1.) ensure that jcms(jumper to flash the bios) is set correctly
2.) unjack each drive one at a time to see if any is causing stalling
3.) get a new main board

Jan 02, 2008 | EliteGroup L7VMM2 Motherboard

Not finding what you are looking for?
Gateway (4000811) Motherboard Logo

1,232 people viewed this question

Ask a Question

Usually answered in minutes!

Top Gateway Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18417 Answers

Prashant M
Prashant M

Level 3 Expert

2263 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you a Gateway Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides