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I have nothing to plug p3 and p4 into when all on no signal

Ok when i turn pc and tower on it only says no signal monitor works thats it nothing eles am i missing what plugs into p3 and p4 i know nothing

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  • 26 Answers

Sometimes if a VGA cable is not screwed into to both your Tower and your Monitor, it can get loose and thus resulting in no signal.
Another cause of a Monitor Displaying the no signal message would be due to the Graphic Card failing, or possibly due to the Graphic Card not correctly being seated.

Other Thoughts
--------------------
Usually P3 and P4 refers to a cable on your power supply that needs to be attach to your motherboard to supply extra power.

Note:
If your P4 cable is not plugged in before turning on your computer, this will also result in your Monitor displaying the no signal message.
Keep in mind though, if your computer has not been opened or is not a custom built PC, you should not have to worry about such issues as your P4 cable should in theory be connected. However I guess safely checking won't hurt anyone.

Posted on Aug 08, 2015

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Posted on Jan 02, 2017

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Muzzi_123
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SOURCE: tower won't turn on

hi try to put the monitor lead in the tower, the leads are both the same, the fuse might be out in the tower lead.

Posted on Mar 28, 2009

gpetti2009
  • 92 Answers

SOURCE: No video signal

The video card may have a jumper next to it or it need to be reset in bios If you know how at start up prees F1 or F2 or Del one of these will open Bios in the bios menu you will see setup instructions on the side or the bottom follow them and save if you are trying to add a video card it should say onboard or pci slect pci then press esc on your keyboard then press F10 to save settings then restart pc this should work but check the hp website for downloads get the manuel and find out about the video jumpers.

Posted on Apr 07, 2009

  • 87 Answers

SOURCE: my tower wont turn off and monitor says no input signal and keyboard doesnt work

Do you have two video outputs on your PC ie. one on the motherboard adn a separately installed card maybe? If you do you need to set the BIOS so that it uses the AGP/PCIE video card and not the 'onboard'. Try the onbopard vodeo card first to see if you get a signal there.

If you do NOT have two video outputs, and you can not see a signal then you may have a prblem wiht your monitor itself. Is this a known working monitor to start with?

Posted on Jun 05, 2009

Oz1286
  • 31 Answers

SOURCE: Black Screen Compaq Presario

Do you see the BIOS splash screen or anything?
Try booting into safe mode by pressing F* as soon as you power on the computer. If the monitor works, then it is a bad driver. Roll back to a previous restore point, boot to last known good coonfiguration. Last Known good configuration is available from the same as the safe mode screen.

If this is helpful, please comment and rate. Have any other questions, please let me know.

Oz

Posted on Feb 12, 2010

Jta91
  • 99 Answers

SOURCE: My hp2009m monitor goes into sleep mode

Monitors are programmed to go to sleep when there is no input. If you shut it down on the other "tower" also it will do the same. You need to physically hit the power button on the monitor to actually shut it off.

Posted on Feb 24, 2010

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1 Answer

Tower turns on but screen says no signal?


Check to be sure your monitor connection needles are seated properly. Is mouse wireless or connected to back of tower?

Jan 02, 2014 | Acer Aspire X3200 PC Desktop

Tip

How to use a P3 power supply with a P4 or newer motherboard.


Well its fairly simple, You need the following cable to convert your P3 power supply into P4 power supply.


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The pictures pretty much explain every thing, this is the only plug that is not present on a P3 power supply. You can make this cable your self by salvaging connectors from non-working power supplies and other computer peripherals. The connections are straight forward just connect both the yellow wires to the single yellow wire and the black wires to the black wires and your done.

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There could be a problem with the connection to your monitor.

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make sure the p4 power connector is plugged in. (4 wire yellow and black wires) plugs in near cpu. Remove and reinsert memory modules. That is were I would start.

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I had to take my computer in for repair and turned the acer monitor off while the tower was gone. After plugging everything back in after repair, the monitor will not come on when you hit the power...


The first thing to check is , the Power, are ya sure it's plugged in OK, are ya sure that socket is working, try something else in that outlet to prove, check the power cord is pushed right in, Check ya on the right Video connector on the PC, make sure all conns are correct. Try the monitor on another base unit, try your base unit on another monitor. If all these are OK then ya Monitor has turned it's toes up sorry.

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I cannot restart my PC AllI get is a note saying NO SIGNAL ANALOG


i had a problem like that ,my tower got bumped and fell over. the heatsink and processor fell off. i had to remove processor (p4) from heatsink and make sure all the pins were straight and aligned properly. i cleaned both parts with alcohol. i then reinstalled processor(unlatched the arm )and it fell into place. then pushed latch down, installed some new thermal grease,installed heatsink ,plugged in and it worked- had a signal/ video again and able to use pc again.

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1 Answer

Tower turns on monitor shows no signal


I am guessing what you mean is that the monitor won't turn on. Does it have a green light or a yellow light that turns on?
If it is plugged in, there should be a light. If not, the monitor is bad. If the light is on but there is no video, then your video card has gone bad.

Jan 24, 2009 | MSI KT4A Ultra (MS-6590-050) Motherboard

1 Answer

Monitor comes up shows "acer" then says no signal and goes black


The interface between the monitor and the cable might need replacement. Please check it.

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1 Answer

Color problem


IT is 18 years OLD so has CCFL back lamps that all turn yellow.
is that it? if the OSD is yellow the (white looks yellow) that means the CCFL black lamp tubes are Shot.
i cant see what you see, no photos posted.

ok the monitor has and OSD, on screen display
i see you found that. but then fail to say what you saw there.
"you could see the background on the text as white. "

what does that mean,?
no matter what that is a bad Monitor.
the OSD works with no computer at all, so if the OSD fails
OSD brain, inside, then the monitor is bad.
all monitors worked previously so is not key to why its failing now.
only the tests now, matter. today/

my post above is for any monitor that fails the OSD tests
no PC turned off. or connected to any PC that works
the PC resolution must never exceed

1024 × 768 at 75 Hz Refresh Rate

on this old old dog. or the screen goes back with error
OUT OF RANGE.

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1 Answer

Not what i wanted


easy all 4 pin dont matter 4 pin to all hard drives and cd roms ok big 20 pin or 24 to mobo smaller 4 pins floppies ok dont mater that its says p1 p2 3p that dont meen nothing ok 4 pin plugs main ones uuse on cd roms hard drives ok fans sumtimes

Jan 23, 2008 | Computers & Internet

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