Optiplex Desktops

2 Bronze

Optiplex 7010 boot issue with certain LCDs

Hello Dell community,

I have issues with Optiplex 7010 Tower (bios A29) trying to boot with high resolution screens (2560x1440, 3840x2160).

I have used the computer for some time with seemingly no issues. I used various graphics cards (FirePro V3800, Quadro 2000, GT 1030) mostly combined with one 1920x1080 screen connected to graphics card via DVI and one 1280x1024 screen connected to integrated graphics using DisplayPort to DVI adapter.

I recently purchased 2560x1440 screen, plugged it into the GT 1030 via HDMI and it worked as expected. When booting however, I get the Dell logo on the 2560x1440 display and then only black screen. I can not enter F2 or F12 settings. The secondary screen connected to integrated graphics shows only underscore in upper left-hand corner.

I suspected the new screen was faulty and connected the computer to 4K TV via the HDMI, but the result was the same - Dell logo and then black screen. Using the HDMI with 1920x1080 screen on the other hand - no issues. DVI on the GT 1030 works in the Opltiplex, if HDMI is not connected at boot. If I connect the HDMI screen after the Optiplex boots, there are no obvious issues until next boot.

The GT 1030 has no issues in older computers I have lying around (Core 2 / Athlon II) - boots with both 1440p and 2160p screens.

I tested few other configurations and pretty much anytime the Dell logo shows on screen that is higher resolution than 1920x1080, the Optiplex wont boot.

Were it not for covid, I could get more devices to test, but I am somewhat limited right now. The GT 1030 is under warranty. The Optiplex should be under warranty as well, but since I upgraded the CPU and cooler, I would like to avoid returning that one to the store until I am out of other options.

Do you happen to have any ideas?

Thank you.

Replies (17)
2 Bronze

It does seem to be somehow related to resolution/framerate - if I leave the enable legacy boot options checked, the computer starts in lower resolution (1280x1024@60Hz) meaning I can get pass the Dell logo and boot stuff like Windows installer or even safe boot Windows. Of course, attempting standard Windows boot (UEFI install) results in black screen, but this time its on Windows level as Windows boots into recovery after few attempts.

In the spirit of "one step forward, two steps back", I managed to break sleep in Windows while tinkering with the settings. Instead of waking up, the computer powers on, powers down immediately, powers up again, powers down again and then powers on and starts from scratch - with hybrid sleep, it continues where it left. Without hybrid sleep, I get fresh start.

I am such a fool 

You are not a fool.  Stop that.   Problems like these aren't uncommon.

"When booting however, I get the Dell logo on the 2560x1440 display and then only black screen. I can not enter F2 or F12 settings. The secondary screen connected to integrated graphics shows only underscore in upper left-hand corner."

Integrated graphics can't be used at the same time as a GPU card on a 7010.  So that's one place to start.

On some high res. screens, and some TV's, people don't even get the Dell logo at startup.  Nothing appears until Windows appears.  This is due to PC not recognizing screen until Windows and drivers kick in.  To see Dell logo and BIOS or Boot Menu, they have to temporarily hook up VGA monitor.  But that doesn't sound like the problem your having.

Make sure any GPU card drivers are up to date.

It might also help experts here to know what version of Win10 (assuming Win10?) you have, as what is the latest update you have on it.  I doubt you have raw Win10 with no updates, which didn't have sleep.

As for breaking sleep and having on & off issue - Might be time to replace size 2032 battery.  Another place to start.  Low batteries cause seemingly related bizarre problems, including boot and on & off problems.

Suggestion:  In power management > choose what the power button does > set to sleep.  Might be a setting for sleep button on keyboard if you have that.

Another thing I do in power management - my PC automatically shuts off and sleeps never unless I do so manually.

May need to double check power management settings in BIOS.

I'm not quite the expert when it comes to hooking up all kinds of different monitors, so I'm letting our other experts chime in.




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I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

It also might help experts here to know what size is your 7010?

Also, I take it you didn't try 2 GPU's at the same time? - As in hopefully not.

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I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

By the way, I'm not sure that you "broke" sleep.  And more specifically, if CMOS battery hasn't been replaced within the last 5 years, now is a good time.




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I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

Thank you for the reply.

The size is Micro Tower, the OS is Windows 10 (20H2) with refind bootloader.

Nvidia driver is latest available from Nvidia. Intel graphics driver is latest available from Dell (stock Intel drivers dont work). Re-installed Windows, but kept files and apps (turns out it kept almost everything else as well).

I had no idea the integrated graphics is not meant to work along with discrete graphics. I have been using the two since I got the computer - even using that setup now as I am writing this. Then again the issues persist even with only single screen connected to the Nvidia card.

Changed the CR2032 already, reset the CMOS and NVRAM using the header, re-flashed the bios to A29 again. The power button was set to sleep - only changed it to hibernation after the sleep issues appeared.

To be honest I pretty much gave up on using the QHD screen with the OptiPlex for the time being, I plan to take the display to work - it should be better than the LCDs provided by the company. Since I cant get any better graphics card at the moment anyway, this is not going to be a big issue for months. I am going to do some testing with clean install of Windows (have some empty HDDs laying around) and see if the sleep works with that - should help isolating the issue.

Some tinkering and another coin battery later:

To make the QHD work I had to enable legacy boot option check in BIOS despite booting in UEFI mode - the logo was now low-res, did not get black screen and for whatever reason Windows did decide to work.

If I boot with either the onboard Intel or Nvidia graphics, everything seems to work, including waking up from sleep.

I can boot with dual graphics configuration, but if I select Nvidia as the primary, Windows does seem to boot but no image on either display. If I select Intel as primary, Windows does boot into system with both displays working, but computer does not wake up from sleep.

I am pretty sure the sleep worked with both GPUs enabled until all this started week ago. I should investigate this further, but until then I have to decide between having two graphics and being able to use sleep. Hibernation seems to be a good alternative.

It looks like you did a pretty good job of troubleshooting.

I think you meant "mini tower" and not "micro tower"?  USFF's and micros have no expansion slots.  7010 didn't come in a micro.

If you use any adapters, remember those things can be an issue sometimes.

If you reinstall Win10, if it's without the updates, remember it doesn't have sleep.

I forgot to ask about the on & off issue - Is it without any GPU's installed?

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I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

You're reply popped in just before mine did.

Hibernation has the potential to be a little slow.  On the other hand, if an SSD is installed, it's rather quick.  Faster than normal boot time.  I normally never use hibernation, accidentally hit hibernation, and was quite surprised.

It's interesting you dual graphics (onboard and GPU card) to work.  Normally them things will say something like "Halt!  Unsupported video configuration."




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I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

Yes, its the Tower.

The main issue with hibernation is waiting for the bios (and in my case bootloader as well). SSD does great job after that and Windows resumes within seconds. I am using PCI-Express based SSD, but even SATA III performs pretty well. Sleep is instant, though.

It does say that, while the primary graphics is set on Auto in Bios - that option disables the onboard graphics, if there is a graphics card present. I had to detach all displays from the onboard graphics, enter the Bios, select one of the graphics as primary and then the onboard graphics is enabled (if there is screen connected to it at launch).

I am pretty sure I had the Nvidia set as primary, because I remember the logo being on the main screen. I will grab some display with DVI tomorrow and see what happens, but at least now I have some rough idea what works.

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