Dell Optiplex 980 No Video

We had bunch of these come into my work.  I purchased one to bring home.  Before hand i had plugged it into a monitor at work and it came on just fine.  Brought it home and just got to plugging it in to reinstall a new copy of windows and no video will show.  I tried the VGA and the Display port.  It is not the cables nor the monitor.  I removed battery to clear CMOS and tried again, still nothing.  As soon as i plug the power cord into it, it turns on before i can even hit the power button though which i have seen other pcs in the past do.  Anyone know these computers if they have a known issue that may cause this?  I should state im only working with onboard video as well.
Nick KlineAsked:
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RaminTechnical AdvisorCommented:
Did you try to re-seat the Graphic Card  ?

Power supply and Motherboard are next suspects.
Nick KlineAuthor Commented:
It is onboard graphics... what is there to reseat?
RaminTechnical AdvisorCommented:
I thought there is also a Graphic Card on your PC.
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Nick KlineAuthor Commented:
no there is not one in this one... only the onboard. which is what i stated i was using,.
RaminTechnical AdvisorCommented:
As far as I know Power supply / Motherboard can have such an effect.

Is it possible for you to check the PSU connections to Motherboard or even to replace Power Supply with another one to test ?
Nick KlineAuthor Commented:
i might possibly have another power supply to fit to test. just odd it worked perfectly fine when i plugged it in at work, then i drove home set it down and a few days later plug it in and no video at all.
RaminTechnical AdvisorCommented:
Sometimes when Power supply or Motherboard are going to become failure they show strange behavior.
JohnBusiness Consultant (Owner)Commented:
Shut down, start up and press F1 repeatedly to get into BIOS . Does BIOS show? Can you return it for a different one?
Jackie ManIT ManagerCommented:
Do you see any diagnostic light?

 "When plugged in the power button displays blue and the diagnostic light 1 continuously blinks while 3 and 4 remain on steadily. "

Check the on-screen menu on your monitor to make sure it is not an issue of compatibility with the output from the system' commonly the output might be 640x400 or 800x600 and your monitor might not support it. The display port though shoukd work if your monitor is display port enabled, to display the bios, the in wonders ..

Are you using the same mode to connect to your monitor at home as you did at work when it worked?
☠ MASQ ☠Commented:
Which case format is this (tower/desktop/SFF)?

If you're getting no video output at all (not even seeing the Dell splash screen) Jackie's suggestion is your best chance at tracking down the issue.
Check the diagnostic LEDs on the back panel against the user guide.  Generally with Opti's if you get no output after moving them to a new location I find it's RAM coming loose so try removing/reseating all the modules.

BTW the brief powering up when you connect the power cord is normal, the PSU has a self check.

Do you think it's just the graphics?  Does it look and sound as it it's behaving normally at boot otherwise - just with no display output?
here's what i do in such cases : remove/disconnect all devices not needed, and start from minimum setup :                  (Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post)
fred hakimRetired ITCommented:
The bios in an optiplex 980 has a setting for video, which may have been set to match the monitors in use at your office.   The trick is resetting that video setting to AUTO.   It should easy enough to just reset the entire bios manually, if you can't get to the bios screen.  

Download the appropriate service manual for your form factor (it will have the instructions).  

Nick KlineAuthor Commented:
I ended up just taking it back in with me, and it turns out a few others do the same thing. They started up fine but then after trying a 2nd or 3rd they beeped one, three, two i believe it was... i ended up just grabbing another brand one that was a regular mid tower case that i got to boot up.  Didn't have the time to go through everything with these little guys to find out what is causing all of it.

Thanks everyone who gave ideas and things to try

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JohnBusiness Consultant (Owner)Commented:
So you did what we suggested (return it). No surprise, really.
PberSolutions ArchitectCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Nick Kline (https:#a42377788)

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