XPS 8930, GeForce GTX 1070, monitor upgrade

@doug harlowBoth of the monitors you are considering should work assuming your graphics card has a HDMI or DisplayPort (DP) output which I am pretty sure the GTX 1070 does. The only problem you may encounter is that the maximum resolution of those monitors is 2560 x 1440 at 144 Hz (HDMI) and 2560 x 1440 at 165 Hz (DP) and I think your graphics card may struggle to achieve that resolution but you should be able to achieve that resolution at 60 Hz or perhaps 120 Hz.

Did you power button reset the 2407WFP?

* Turn the XPS 8930 off
* Turn the 2407WFP off
* Disconnect every cable (including the power cable) from the 2407WFP
* Press the 2407WFP power button in for 8 seconds (clears any residual power in the circuits)
* Reconnect the power cable and one video cable to the 2407WFP
* Turn the 2407WFP on, then the XPS 8930

Chris,

No one has ever told me to do that, Thanks. I got real excited when I read your post. I really thought this would work. I went through your procedure twice and power button in the front of the monitor comes on but still black screen??? I know this monitor is older but it's barley used. I really hate to buy a replacement, money is short right now.

I really want to thank you for your involvement and support. Thanks

what would I have to change in my PC to acquire the 2560 x 1440 at 165 Hz (DP).

Thanks for the support.

Hi, @doug harlow & @Vic384 

According to this page ( https://www.tomshardware.com/uk/news/geforce-gtx-1070-specifications,31822.html ) the GTX 1070 can cope with resolutions upto "7680x4320@60Hz"!

@doug harlow  -  Sure it's the monitor? Or is it the video card?

Can you test this monitor on a different PC or a known-working monitor on this PC?

Is the current monitor actually connected to the video card, not to either of the onboard Intel UHD Graphics ports?

If the monitor has its own on-screen display (OSD) that's opened by pressing a button(s) on the monitor, open the OSD and confirm that it's set to use the video port that's connected to the PC.

You might be able to connect the monitor to either the onboard HDMI or onboard DP connector to test with Intel UHD Graphics, without removing the add-in video card. If that doesn't work, physically remove the add-in video card and try using an onboard video port again. Check Service Manual for instructions to remove the add-in video card.

@doug harlow 

That does lean toward a monitor failure, but you probably used HDMI(PC)>HDMI(TV), so that confirms at least HDMI works from the video card.

Do you see anything when you press the Input Source button (A) on bottom of monitor to open the OSD when it's connected to PC?  If not, that would probably confirm a monitor issue.

Happy shopping, especially with all the Black Friday sales...

@Vic384 

Fair point!

I'm not a Gamer, hence I missed the significance of that!

Obviously I just obtained that information from an Internet search!! However, what I found interesting was the absolute lack of definitive Resolution v Refresh Information there is available! Even Nvidia (& Geforce) only cite the Max resolution at 60Hz - none of the other permutations!

@doug harlow, based on the information that others have supplied, may I make a suggestion? The GTX 1070 WILL run with your new Monitor (the only question is whether you will get the full range of Resolution v Refresh Rate to match your Monitor). Hence just run your new Monitor with the GTX 1070 & check out what you get. Only if you think it is "Holding you back" would I suggest you consider getting a new Card!

Ron, 1st Thanks for the support. I tried different cables, DVI, VGA. no luck. Then I tried a TV, connected to the existing PC video card and TV worked perfectly as a monitor.  So, I think that rules out a bad video card.

@John-Jay I am assuming @doug harlow is considering a 144 Hz monitor is because of gaming. The issue is whether or not the GTX 1070 can handle the refresh rate of 144 Hz (HDMI) or 165 Hz (DP) at 1440p gaming at maximum settings. I am pretty sure at reduce frame rates the GTX 1070 would do just fine at 2560 x 1440, a lot depends upon the game.

Ron, I was so frustrated I just started pushing all the buttons on the bottom of the monitor trying to see any action. I really did pay any attention on which buttons I was pushing.

I did try HDMI (PC VIDEO CARD) AND DVI-D (MONITOR)

I don't know what you mean by "Do you see anything when you press the Input Source button (A) on bottom of monitor to open the OSD when it's connected to PC?"? I have 5 buttons, Labeled 1,2,3,4 & 5, no A,B C. And OSD means what? (operating system display)?

@doug harlow I assume you are referring to your Dell UltraSharp 2407WFP. This is a case where looking at the Dell manual would help. The manual labels the buttons A thru F from left to right. OSD means On-Screen Display.

@doug harlow  said: I did try HDMI (PC VIDEO CARD) AND DVI-D (MONITOR)

I assume you were using an HDMI(PC)>DVI(monitor) adapter, but these adapters typically only work in one direction. So you can't simply flip an DVI(PC)>HDMI(monitor) adapter around and expect it to work.

As I explained and @Vic384 clarified, you have to press the "A" button to open the Input Source selector. If no video cable is plugged into monitor when you press "A" , you should see a floating dialog box saying no video input is detected. So if the screen stays blank/black after pressing "A" without any cables connected, that confirms the monitor failed.

To open the On-Screen Display (OSD), press button "C".