GPU not showing native resolution after replacing the MoBo

[Colombino]

Hi guys,

I have a problem with my ASUS R7 260x. After I replaced my old mobo (that didn't want to boot anymore) with a used MSI GF615M-P33 V2 (socket FM3). The whole build is:

CPU: AMD Athlon II x4 635
GPU: ASUS R7 260x 2GB OC
RAM: 4GB DDR3 1333MHz
HDD: 1x500GB SATA II 7200RPM

The whole build was working fine on my old Mobo, but after replacing it the native resolution (1680x1050) of the used monitor isn't being showed. I even tried using a newer ASUS Monitor with a native resolution of 1920x1080, but it didn't show that resolution either. It shows other resolutions up to 1920x1200 but none of those I'm actually using...

I tried reintalling the OS, starting with win10, then win7 and after that even win8.1 and winXP, also with different drivers. Nothing helped. I even tried Linux, but that didn't help either. I also tried with an older GPU (ASUS HD 5450) and I can confirm that both cards, the HD5450 and the R7 260x worked on 1920x1080 in other computers.

I'd also like to add that all games on this PC (with the "new used" mobo) are working perfectly fine. I tried playing Overwatch on ultra settings and it worked with no problems on 50-60fps. So, the PC works, its just some native resolutions are not being shown....

The mobo itself has a PCIe x16 1.0 slot. Might that be the problem? Is it bottlenecking the GPU?

 

[atljsf]

resolution and pci slot related one to another? i haven't found a relation, especially on such low resolutions

also, i have a p23 with a athlon x2 and gives 1080p with a tv via hdmi with a hd5450 and a old hd4830

what driver are you using?

what monitor is?

what cable are you using?

does system identifies the monitor as plug and play or has no idea of what monitor is?

 

[dontlistentome]

That's not an FM3 motherboard, so I'm guessing that's a typo on your part. I'd try booting into the motherboard bios and making sure the integrated graphics are disabled and your videocard is the primary display adapter.

 

[Colombino]

Hey guys, thanks for your fast responses! I fixed it. I can't believe it was really the cable. One of the two monitors is supporting DVI by default (I was using a VGA cable with a VGA to DVI adapter attached to it), so I bought a new DVI cable and after turning on the PC not only the system showed the native resolution, but it also recognized the monitor and showed the full name of it, instead of the previous "generic non pnp monitor".

I'd like to add that my other two computers are working perfectly fine with the same VGA cable that didn't work on this system. The other computers are showing the native resolutions of all monitors I have. I don't know why the VGA cable didn't work with the system I mentioned above.

Thanks a lot again, I'm so glad this got fixed. And yes, it was a typo. This is obviously a AM3 mobo 😀

Cheers!