Help please [Samsung SyncMaster 740NW + XFX R7700]

Damianla

Well, the issue is as follows, I have a Samsung SyncMaster 740NW monitor that only has a VGA output and I bought an XFX R7700 video card that doesn't have a VGA output, only DVI or HDMI, so I bought a cable with one end VGA and the other end DVI but it doesn't recognize it, if I connect the monitor with the cable with both VGA connectors to the motherboard it works. So I've been looking for solutions and none of the proposals work for me. I have Windows 7 Enterprise, thanks in advance.

lforos

I don't know which cable you're talking about, but the DVI to VGA conversion is possible and works. Have you disabled the graphics on the motherboard before connecting the monitor to the other card?

What card do you have?

Bm4n

Have you thought that the cable might be faulty? A DVI-VGA adapter (not a cable) is not expensive, and if you have several DVI ports, have you tried the graphics card in all of them? And as lforos says, what motherboard do you have? Does the BIOS offer any options for selecting a monitor output or the possibility of disabling the integrated one?

Damianla

I have:

Samsung SyncMaster 740nw monitor (with vga input + the corresponding monitor cable)
Gigabyte 78lmt-USB3 mother board
XFX R7700 video card
Cable with vga connector on one side and dvi on the other (I bought it thinking it would work)

I assembled the entire case and plugged the monitor into the video card with the cable I bought (vga - dvi) and the monitor shows "no signal".
I plugged the motherboard into the monitor with the monitor cable (vga-vga), without the video card installed and it works (if I do this with the video card installed it doesn't work)

there I expressed myself better, I looked in the bios but I couldn't find any option, could it be that the monitor doesn't accept the cable?? would I have to try with an adapter? I don't know what to do, I've run out of ideas.

Sylver

Change the cable for something like this:

It's just one piece, the image shows the same piece on each side. As you can see it has a DVI output to connect it to the graphics, and VGA to connect the monitor cable. It's cheap and usually doesn't fail.

If you see that it doesn't work, try installing the drivers for the new graphics first, for this use the integrated graphics (as you say it works for you, by VGA-VGA) and once the drivers are installed, try connecting the graphics, use the adapter I put in the photo and start to see if it works.

Regards

Franziskaner