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I have changed VGA, ram, hdmi,cmos battery of Dell optiplex 3010 but there is no signal comming from cpu. Please help me.

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  • 5,317 Answers

First off the 3010 is not one PC, its 5 PC, called forum factor
MT, DT, SFF, USFF, All-in-one ??? 5 sizes all different.

I own a 3020 and lots of mods to it, and runs w10-64bit perfectly.
first off are all usb ports empty but keyboard/mouse
and are all PCI-slots inside empty? I cant see inside your case.
does your monitor work on 2nd PC.
the PC only has 1 VGA port (onboard) to use DVI/HDMI or DP
one has to add new VIDEO card, do you run video car, well which one, some will not work overload the PSU.
when you power on that PC the power button turns blue does it?
then you hear 2 fans blow, PSU fan and the CPU fan if not the PC power is failing. Both dead fans)
if the fans blow then the VGA send video to the monitor
If you installed video card, then it must not use too much power.
A new card added, would have DVI/HDMI/DP ports.
you never said what cabled port you are using.
what card, you said changed VGA< does that men the card or changed only the cable. IDK.?

know this, these cards will not work on you PC
the power hogs. (unless MT case and new PSU) ask how I did it.

Nvida only list , can do ATI list to but not yet.

that is what not to use , ever unless you first answer question #1
desktops are the best but not knowing what options you have.
answers come hard, all things added to it usb and PCI express.

Posted on Jun 05, 2019

  • Anonymous Jun 06, 2019

    if all fans are dead, are they
    that means the PSU is dead or overloaded
    we test that easy if true.
    see here.
    we can bench test any PSU made (we have specs)
    the PC can be tested for shorts, that overload ANY PC. (we have the tools and methods)
    as I said you test the monitor first to be sure it's not dead, ok>

    on your PC , like mine the center of the motherboard has org LED, that glows
    even with power off, AC must be plugged in both ends of cable.
    if not the PSU is dead,99% or standby is shorted (power rail with same name)

    if the PSU bench test passes (with jumper)
    then we strip the PC like this.

    the first thing to do is remove the VGA card see if PSU and CPU fans now turn on and the ORANGE LED (STBY) glow.
    I have the secret to get non DELL PSU to work here. using the $7 PSU adaptor,
    works even with super fast GPU CARD, ASK can show web page doing this.

  • Anonymous Jun 06, 2019

    the ATX spec , PSU allows it to turn off the PSU in under 1 second, if fact faster that 1 eye blink 0.016 seconds, yea that fast.
    seem to humans dead.but is dead shorted out.


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  • Contributor
  • 11 Answers

It could be so many things (like mentioned above) Another thing is it could be a power supply problem.

Posted on Jun 04, 2019


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Posted on Jan 02, 2017

  • 35 Answers

SOURCE: led pwr+hd isn on, cpu fan is runing, but no

if your monitor is working properlly,then you should check the following things:-Remove ram and start the computer. If it gives you any beep then your motherboard is all right.And if not,then it's time to buy a new motherboard.

Posted on Mar 17, 2009

  • 11800 Answers

SOURCE: I have an asus p4p800se mobo with 3.2ghz, 1gb ram

When the PSU died it overstresed the sources on the board - most likely the capacitors were damaged (you can see them bulged). Replace them if you can, otherwise you need a new board.

Posted on Jun 18, 2010

  • 1 Answer

SOURCE: Dell OptiPlex GX620 starts up then shuts down repeatedly

Try this: remove the DMOS battery and unplug the on/off switch plug. It's the one in the corner near the power supply. To be sure follow the cable from the front on/off switch board on back to this plug. Then plug the A/C cord in, if the system boots up fine, then replace the front panel power on/off swith board. Naturally you will not be able to power off the computer using the power switch (since we unplugged it), so you will have to just pull the plug. Hope this helps. Joe

Posted on Jul 22, 2010

  • 656 Answers

SOURCE: no display but power on ram ok cmos battery ok cpu

first check ur display cable for breakr if you have built in display disable it in bios and and if you have addon display card remove them insrert a new addon diplay card if you have display the display section in you motherboard is faulty or diplay add on card is faulty if it still dont work the clock and reset section in your motherboard is fulty to find the at the above section if you have a multimeter check the pci slot A15 means the pci pins facing the processor must have 5v if this is ok your motherboard is ok and the problem is with your display card

Posted on Oct 07, 2010

  • 36 Answers

SOURCE: DELL OPTIPLEX G520 intel pentium

What is the last change you made to your system before this happen?

If you have change or upgrade the ram then it can be sure that the rams
are causing problem. In this case pull out all ram stick, then just stick
in one buy one to determine which ram is causing that problem.

I've the same system and had experienced the same problem when I
tried to stick another stick into the system.

The ram stick that caused problem will cause the same problem when
you stick it into another system also if the stick is the issue.

For hardening you PC i recommend download all the new driver from I've even flashed my bios the last version, work well,
but this has nothing to do with the reboot issue. That seemed to be
typical ram problem.

Hope it helps.

Posted on Mar 10, 2011

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