Question about Dell OPTIPLEX GX1 PIII-667MHz 128MB 10GB (DELLP3667) PC Desktop

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A cable is out

I found out what the problem was. It is a cable that is linked to the on/off switch of the computer which needs to be put into something. Where shall i put it?

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Re: A cable is out

You should have a pin header on the edge of the motherboard, the pin out of which should be listed in the motherboard manual (downloadable from the maufacturer's website).

of if you have v good eyesight you may find it to be marked as pwr.


Posted on Oct 13, 2007

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I found a manual for a motherboard that should be the same:
please check the diagram on page 22 for the front connectors.

Good luck !!

Oct 19, 2014 | PC Desktops

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When I turn on the computer, the monitor massage states there is no communication signal with the computer

Warning: Before Doing the Below Steps don't forget to Unplug the Power cable, monitor cable, keyboard and mouse and any other device connected to your computer.

Do the following Steps.

Step 1: Open the PC case(not your monitir)
Step 2: Locate the CMOS battery on the mother board.

Step3: Remove the Battery and leave it for 4-5min, now put the battery back in its proper place.

After doing above steps now you can connect the power cable, VGA cable, keyboard,mouse etc... and switch on the computer and see if you are able to get display. If still you find the same problem you can try removing RAM from RAM bank and clean it with a brush or a cloth ,both RAM and RAM Bank. Now Put back the RAM and switch on the computer.

All the Best and Hope it will work for you.

Jul 11, 2011 | HP Compaq Presario SR1720NX (EL435AA) PC...

1 Answer

NEC Powermate V466 No power

billyto91, I haven't worked on an NEC Powermate V466 before, but searching the internet reveals it to be a desktop computer.

My sources do not exactly indicate whether it is a desktop unit, that the computer case resembles a 'pizza-box', or is a tower style of computer case.

This is a Service Manual I found online just now from NEC, (Free),

Left-click on - Service and Reference Manual (ELSIE) for V466 Series (DT & MT)
(In blue)

This is a PDF file. May take up to 30 seconds before you see the first page. (Took 6 seconds to download for me, with a medium speed DSL connection)

The reason I posted this link, is to try to give you information on opening your computer case, and see what style of Power Supply it uses. More specifically, what main power cable the Power Supply uses.

1) Computer unplugged from power. Open the computer case. The Service Manual is less than, in that it has omitted some necessary illustrations.

Indication is, that there are two screws on the back of the computer case, that are removed. Then the cover is slid forward, and lifted off. ('Pizza-box' style)

BEFORE you reach inside, I advise observe anti-static precautions.

{Your body carries Static electricity. Static WILL fry out (Short Circuit) the hardware components inside a computer.

Computer unplugged from power, TOUCH the metal frame of the computer case.
This action will relieve your body of Static.

Should you get up, and walk away from working on your computer, upon your return Touch the metal frame again}

If you have a 20-pin ATX main power cable connector, or a 24-pin main power cable connector, there is a procedure that can be used, to see if the problem is the Power On switch, or the Power Supply.

Example of a 20-pin ATX main power cable, and it's respective connector,

Scroll down further for a 24-pin ATX main power cable, and it's connector.

I'm willing to bet you have a 20-pin ATX main power cable.
Observe the photo all the way to the right.
You will see a Green insulated wire, and a lot of Black insulated wires.

The Green wire is the Soft Power On wire.
ANY Black wire is a Ground wire.

The procedure is to use a jumper wire from the Soft Power On wire, to ANY Ground wire.

(It is a little more involved than this. Should you desire to do this procedure, state so in a Comment. {Believe upper right of your page}
I will detail in length of how to do the procedure)

IF, using the jumper wire turns the Power Supply on, the problem is a bad Power On switch.

IF, using the jumper wire does Not turn the Power Supply on, the problem is the Power Supply.
(Bad Power Supply. Weak Voltage power rail)

This is an example of a Power On switch, that I have found fit's many computers,

I realize this is a bit much all at once, if one is not familiar with computer repair.
I will answer your questions to the best of my ability, and guide you step by step if needed.

Jun 08, 2010 | NEC PC Desktops

1 Answer

Just received Refurbished Advent CBE 1401. It is being replaced because power switch is faulty - but I have questions about machine. 1. When initially switched on the switch turned red is this normal? I...

1) No. The switch color should have been Green

2) No Signal on the monitor, indicates the monitor is not receiving a Video Signal from the computer.

A) Could be due to a faulty monitor cable.
Monitor cable is used on a working computer for a test,
working computer's monitor cable is used on the Advent for a test.

B) Could be due to the graphics 'engine' on the motherboard, or on the graphics card is bad.

[Graphics 'engine'.
Graphics Processing Unit. ]

If the computer is using Integrated Graphics, the GPU is on the motherboard.

(Integrated Graphics is also referred to as OnBoard Graphics. Meaning On the motherBoard)

You will know if it's Integrated Graphics, because the monitor cable will be plugged into the VGA connector, on the motherboard

Since you indicate an adapter was included, to adapt to a different port (Connector), it could be a VGA to DVI adapter, or a DVI to VGA adapter.

Your monitor may just have a VGA connector on the monitor cable.
Hence you would use a female VGA to Male DVI adapter.

Your monitor may be an LCD flat screen monitor, and has a DVI connector on the monitor cable.
Hence you would use a female DVI to Male VGA adapter.

Digital Visual Interface

VGA monitors are Analog.
LCD monitors are Digital.

A computer puts out a digital signal.

If a VGA monitor is used, the computer has to alter the Digital signal to an Analog one.
This slows down the video signal.

If your monitor (In any case. Not just this one), is an LCD flat screen monitor, it is best to use a DVI monitor cable, and plug into a DVI port on the computer, if available.

If your monitor is a VGA (CRT. Cathode Ray Tube), monitor, and you have a DVI connection on your computer, using the adapter will do you no good.

The adapter just uses the contact pins for VGA, that are present in that DVI adapter, and hence the DVI connection on the computer.

You're still just getting an Analog VGA signal.

Example of a female VGA to male DVI adapter,

If the Integrated Graphics are suspected to be bad, a graphics card is used in the appropriate expansion slot, for a test.

If the graphics work then, the graphics card is left in service.

After I test the monitor cable my next procedure is to suspect the Power On switch, or the Power Supply, and go to the graphics next.

The reasoning is that Power Supply failure, is the number one cause of computer failure.
The next is the Power On switch, then Electrolytic Capacitors used on the motherboard.

(Specifically, any Electrolytic Capacitors used in the motherboard Voltage Regulator Circuit)

If the Power On switch is bypassed, the diagnosis will reveal if the problem is the switch, or Power Supply.

Bypass the Power On switch, and the Power Supply comes on?
Problem is the Power On switch.

[One Power On switch I have found to fit a lot of computers. The Power On switch goes into the plastic Power On button, ]

Bypass the Power On switch, and the Power Supply does Not come on?
The problem is the Power Supply.

The Power On switch is bypassed using a jumper wire, from the green Soft Power On wire, to ANY black Ground wire. The contact made is a brief momentary one.

The jumper wire is used at the back, of the 20, or 24-pin ATX main power cable connector.

To be continued in an additional Comment.

Jun 04, 2010 | PC Desktops

3 Answers

Compaq presario sr2020nx will not turn on

Just check the power suply behind computer case , or check your cable power.

May 24, 2010 | HP Compaq Presario SR2020NX PC Desktop

3 Answers

My computer cannot find he primary hard drive

Hi friend,

this is not your system problem. it is your wire problem. You need to change your hard drive cable then try.

Dec 17, 2009 | Dell Dimension 3000 PC Desktop

2 Answers

Windows xp computer not reading windows transfer cable

please download and install the driver found on the bottom of the page linked on the xp computer:

May 29, 2009 | Dell Dimension 2400 PC Desktop

1 Answer

Internet no longer working, but internal network is fine.

i agree with all the above.. it's definately clear as mud how the network is designed and or funtioning. The machines connected to the wireless d-link router.. are they via cat5 inthe wired ports or wireless ? is the server the machine thats connecting to the switch and wiress router and modem? i'd say reset all switches modems routers and machines.. shut them all down.. then fire the cable modem, then the wireless router then the desktop switch then the server, the workstations and the one lonely wireless.. run "ipconfig /all" on all machines and if they aren't all sharing common ips and access, provide the results here for further investigation.

May 20, 2009 | Dell Dimension 2400 PC Desktop

1 Answer

My computer screen has a green tinge, how do i change it back to how its supposed to be?

hi there,
if still have the system windows you can put it back,click the all program,go to accesories,then click system tool,click restore system,on restore system select and click a previuos date that your windows run normally to put back your system.follow the instruction,this will restart your computer after you select date then it restore your windows just wait,until it tell you it was finished.
if still the same thing,try to switch off your computer,then open the cover of your computer .disconnect vga cable on video card loosen quick lock bolt,pull out video card try to clean by eraser head of pencil srcub on slotted multiple terminals then put it back
also include your memory card clean by eraser head also,put it back,disconnect ide cable of hardisk and put it back to refresh,closed computer cable.and switch it on.if still have the green thing install your windows installer and have it install the windows again.just follow the instruction.have a nice day.dont forget to rate me,thank's

Apr 23, 2009 | Intel Celeron -D 2.26Ghz Computer System...

1 Answer

Dvd drive

Internal drives are rather inexpensive. If you visit your local walmart super center you will probably find internal and external drives similar to the ones in the following link. The internal drives are less expensive than the internal, and if you are comfortable resecuring the cables inside the case, then replacing one of the drives is not that much more of a step.

Apr 11, 2008 | PC Desktops

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